1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
|
/* Internal functions.
Copyright (C) 2011-2019 Free Software Foundation, Inc.
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "backend.h"
#include "target.h"
#include "rtl.h"
#include "tree.h"
#include "gimple.h"
#include "predict.h"
#include "stringpool.h"
#include "tree-vrp.h"
#include "tree-ssanames.h"
#include "expmed.h"
#include "memmodel.h"
#include "optabs.h"
#include "emit-rtl.h"
#include "diagnostic-core.h"
#include "fold-const.h"
#include "internal-fn.h"
#include "stor-layout.h"
#include "dojump.h"
#include "expr.h"
#include "stringpool.h"
#include "attribs.h"
#include "asan.h"
#include "ubsan.h"
#include "recog.h"
#include "builtins.h"
#include "optabs-tree.h"
#include "gimple-ssa.h"
#include "tree-phinodes.h"
#include "ssa-iterators.h"
/* The names of each internal function, indexed by function number. */
const char *const internal_fn_name_array[] = {
#define DEF_INTERNAL_FN(CODE, FLAGS, FNSPEC) #CODE,
#include "internal-fn.def"
"<invalid-fn>"
};
/* The ECF_* flags of each internal function, indexed by function number. */
const int internal_fn_flags_array[] = {
#define DEF_INTERNAL_FN(CODE, FLAGS, FNSPEC) FLAGS,
#include "internal-fn.def"
0
};
/* Return the internal function called NAME, or IFN_LAST if there's
no such function. */
internal_fn
lookup_internal_fn (const char *name)
{
typedef hash_map<nofree_string_hash, internal_fn> name_to_fn_map_type;
static name_to_fn_map_type *name_to_fn_map;
if (!name_to_fn_map)
{
name_to_fn_map = new name_to_fn_map_type (IFN_LAST);
for (unsigned int i = 0; i < IFN_LAST; ++i)
name_to_fn_map->put (internal_fn_name (internal_fn (i)),
internal_fn (i));
}
internal_fn *entry = name_to_fn_map->get (name);
return entry ? *entry : IFN_LAST;
}
/* Fnspec of each internal function, indexed by function number. */
const_tree internal_fn_fnspec_array[IFN_LAST + 1];
void
init_internal_fns ()
{
#define DEF_INTERNAL_FN(CODE, FLAGS, FNSPEC) \
if (FNSPEC) internal_fn_fnspec_array[IFN_##CODE] = \
build_string ((int) sizeof (FNSPEC), FNSPEC ? FNSPEC : "");
#include "internal-fn.def"
internal_fn_fnspec_array[IFN_LAST] = 0;
}
/* Create static initializers for the information returned by
direct_internal_fn. */
#define not_direct { -2, -2, false }
#define mask_load_direct { -1, 2, false }
#define load_lanes_direct { -1, -1, false }
#define mask_load_lanes_direct { -1, -1, false }
#define gather_load_direct { 3, 1, false }
#define mask_store_direct { 3, 2, false }
#define store_lanes_direct { 0, 0, false }
#define mask_store_lanes_direct { 0, 0, false }
#define scatter_store_direct { 3, 1, false }
#define unary_direct { 0, 0, true }
#define binary_direct { 0, 0, true }
#define ternary_direct { 0, 0, true }
#define cond_unary_direct { 1, 1, true }
#define cond_binary_direct { 1, 1, true }
#define cond_ternary_direct { 1, 1, true }
#define while_direct { 0, 2, false }
#define fold_extract_direct { 2, 2, false }
#define fold_left_direct { 1, 1, false }
#define mask_fold_left_direct { 1, 1, false }
#define check_ptrs_direct { 0, 0, false }
const direct_internal_fn_info direct_internal_fn_array[IFN_LAST + 1] = {
#define DEF_INTERNAL_FN(CODE, FLAGS, FNSPEC) not_direct,
#define DEF_INTERNAL_OPTAB_FN(CODE, FLAGS, OPTAB, TYPE) TYPE##_direct,
#define DEF_INTERNAL_SIGNED_OPTAB_FN(CODE, FLAGS, SELECTOR, SIGNED_OPTAB, \
UNSIGNED_OPTAB, TYPE) TYPE##_direct,
#include "internal-fn.def"
not_direct
};
/* ARRAY_TYPE is an array of vector modes. Return the associated insn
for load-lanes-style optab OPTAB, or CODE_FOR_nothing if none. */
static enum insn_code
get_multi_vector_move (tree array_type, convert_optab optab)
{
machine_mode imode;
machine_mode vmode;
gcc_assert (TREE_CODE (array_type) == ARRAY_TYPE);
imode = TYPE_MODE (array_type);
vmode = TYPE_MODE (TREE_TYPE (array_type));
return convert_optab_handler (optab, imode, vmode);
}
/* Expand LOAD_LANES call STMT using optab OPTAB. */
static void
expand_load_lanes_optab_fn (internal_fn, gcall *stmt, convert_optab optab)
{
class expand_operand ops[2];
tree type, lhs, rhs;
rtx target, mem;
lhs = gimple_call_lhs (stmt);
rhs = gimple_call_arg (stmt, 0);
type = TREE_TYPE (lhs);
target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
mem = expand_normal (rhs);
gcc_assert (MEM_P (mem));
PUT_MODE (mem, TYPE_MODE (type));
create_output_operand (&ops[0], target, TYPE_MODE (type));
create_fixed_operand (&ops[1], mem);
expand_insn (get_multi_vector_move (type, optab), 2, ops);
}
/* Expand STORE_LANES call STMT using optab OPTAB. */
static void
expand_store_lanes_optab_fn (internal_fn, gcall *stmt, convert_optab optab)
{
class expand_operand ops[2];
tree type, lhs, rhs;
rtx target, reg;
lhs = gimple_call_lhs (stmt);
rhs = gimple_call_arg (stmt, 0);
type = TREE_TYPE (rhs);
target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
reg = expand_normal (rhs);
gcc_assert (MEM_P (target));
PUT_MODE (target, TYPE_MODE (type));
create_fixed_operand (&ops[0], target);
create_input_operand (&ops[1], reg, TYPE_MODE (type));
expand_insn (get_multi_vector_move (type, optab), 2, ops);
}
static void
expand_ANNOTATE (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This should get expanded in omp_device_lower pass. */
static void
expand_GOMP_USE_SIMT (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This should get expanded in omp_device_lower pass. */
static void
expand_GOMP_SIMT_ENTER (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* Allocate per-lane storage and begin non-uniform execution region. */
static void
expand_GOMP_SIMT_ENTER_ALLOC (internal_fn, gcall *stmt)
{
rtx target;
tree lhs = gimple_call_lhs (stmt);
if (lhs)
target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
else
target = gen_reg_rtx (Pmode);
rtx size = expand_normal (gimple_call_arg (stmt, 0));
rtx align = expand_normal (gimple_call_arg (stmt, 1));
class expand_operand ops[3];
create_output_operand (&ops[0], target, Pmode);
create_input_operand (&ops[1], size, Pmode);
create_input_operand (&ops[2], align, Pmode);
gcc_assert (targetm.have_omp_simt_enter ());
expand_insn (targetm.code_for_omp_simt_enter, 3, ops);
}
/* Deallocate per-lane storage and leave non-uniform execution region. */
static void
expand_GOMP_SIMT_EXIT (internal_fn, gcall *stmt)
{
gcc_checking_assert (!gimple_call_lhs (stmt));
rtx arg = expand_normal (gimple_call_arg (stmt, 0));
class expand_operand ops[1];
create_input_operand (&ops[0], arg, Pmode);
gcc_assert (targetm.have_omp_simt_exit ());
expand_insn (targetm.code_for_omp_simt_exit, 1, ops);
}
/* Lane index on SIMT targets: thread index in the warp on NVPTX. On targets
without SIMT execution this should be expanded in omp_device_lower pass. */
static void
expand_GOMP_SIMT_LANE (internal_fn, gcall *stmt)
{
tree lhs = gimple_call_lhs (stmt);
if (!lhs)
return;
rtx target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
gcc_assert (targetm.have_omp_simt_lane ());
emit_insn (targetm.gen_omp_simt_lane (target));
}
/* This should get expanded in omp_device_lower pass. */
static void
expand_GOMP_SIMT_VF (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* Lane index of the first SIMT lane that supplies a non-zero argument.
This is a SIMT counterpart to GOMP_SIMD_LAST_LANE, used to represent the
lane that executed the last iteration for handling OpenMP lastprivate. */
static void
expand_GOMP_SIMT_LAST_LANE (internal_fn, gcall *stmt)
{
tree lhs = gimple_call_lhs (stmt);
if (!lhs)
return;
rtx target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
rtx cond = expand_normal (gimple_call_arg (stmt, 0));
machine_mode mode = TYPE_MODE (TREE_TYPE (lhs));
class expand_operand ops[2];
create_output_operand (&ops[0], target, mode);
create_input_operand (&ops[1], cond, mode);
gcc_assert (targetm.have_omp_simt_last_lane ());
expand_insn (targetm.code_for_omp_simt_last_lane, 2, ops);
}
/* Non-transparent predicate used in SIMT lowering of OpenMP "ordered". */
static void
expand_GOMP_SIMT_ORDERED_PRED (internal_fn, gcall *stmt)
{
tree lhs = gimple_call_lhs (stmt);
if (!lhs)
return;
rtx target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
rtx ctr = expand_normal (gimple_call_arg (stmt, 0));
machine_mode mode = TYPE_MODE (TREE_TYPE (lhs));
class expand_operand ops[2];
create_output_operand (&ops[0], target, mode);
create_input_operand (&ops[1], ctr, mode);
gcc_assert (targetm.have_omp_simt_ordered ());
expand_insn (targetm.code_for_omp_simt_ordered, 2, ops);
}
/* "Or" boolean reduction across SIMT lanes: return non-zero in all lanes if
any lane supplies a non-zero argument. */
static void
expand_GOMP_SIMT_VOTE_ANY (internal_fn, gcall *stmt)
{
tree lhs = gimple_call_lhs (stmt);
if (!lhs)
return;
rtx target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
rtx cond = expand_normal (gimple_call_arg (stmt, 0));
machine_mode mode = TYPE_MODE (TREE_TYPE (lhs));
class expand_operand ops[2];
create_output_operand (&ops[0], target, mode);
create_input_operand (&ops[1], cond, mode);
gcc_assert (targetm.have_omp_simt_vote_any ());
expand_insn (targetm.code_for_omp_simt_vote_any, 2, ops);
}
/* Exchange between SIMT lanes with a "butterfly" pattern: source lane index
is destination lane index XOR given offset. */
static void
expand_GOMP_SIMT_XCHG_BFLY (internal_fn, gcall *stmt)
{
tree lhs = gimple_call_lhs (stmt);
if (!lhs)
return;
rtx target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
rtx src = expand_normal (gimple_call_arg (stmt, 0));
rtx idx = expand_normal (gimple_call_arg (stmt, 1));
machine_mode mode = TYPE_MODE (TREE_TYPE (lhs));
class expand_operand ops[3];
create_output_operand (&ops[0], target, mode);
create_input_operand (&ops[1], src, mode);
create_input_operand (&ops[2], idx, SImode);
gcc_assert (targetm.have_omp_simt_xchg_bfly ());
expand_insn (targetm.code_for_omp_simt_xchg_bfly, 3, ops);
}
/* Exchange between SIMT lanes according to given source lane index. */
static void
expand_GOMP_SIMT_XCHG_IDX (internal_fn, gcall *stmt)
{
tree lhs = gimple_call_lhs (stmt);
if (!lhs)
return;
rtx target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
rtx src = expand_normal (gimple_call_arg (stmt, 0));
rtx idx = expand_normal (gimple_call_arg (stmt, 1));
machine_mode mode = TYPE_MODE (TREE_TYPE (lhs));
class expand_operand ops[3];
create_output_operand (&ops[0], target, mode);
create_input_operand (&ops[1], src, mode);
create_input_operand (&ops[2], idx, SImode);
gcc_assert (targetm.have_omp_simt_xchg_idx ());
expand_insn (targetm.code_for_omp_simt_xchg_idx, 3, ops);
}
/* This should get expanded in adjust_simduid_builtins. */
static void
expand_GOMP_SIMD_LANE (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This should get expanded in adjust_simduid_builtins. */
static void
expand_GOMP_SIMD_VF (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This should get expanded in adjust_simduid_builtins. */
static void
expand_GOMP_SIMD_LAST_LANE (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This should get expanded in adjust_simduid_builtins. */
static void
expand_GOMP_SIMD_ORDERED_START (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This should get expanded in adjust_simduid_builtins. */
static void
expand_GOMP_SIMD_ORDERED_END (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This should get expanded in the sanopt pass. */
static void
expand_UBSAN_NULL (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This should get expanded in the sanopt pass. */
static void
expand_UBSAN_BOUNDS (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This should get expanded in the sanopt pass. */
static void
expand_UBSAN_VPTR (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This should get expanded in the sanopt pass. */
static void
expand_UBSAN_PTR (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This should get expanded in the sanopt pass. */
static void
expand_UBSAN_OBJECT_SIZE (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This should get expanded in the sanopt pass. */
static void
expand_ASAN_CHECK (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This should get expanded in the sanopt pass. */
static void
expand_ASAN_MARK (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This should get expanded in the sanopt pass. */
static void
expand_ASAN_POISON (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This should get expanded in the sanopt pass. */
static void
expand_ASAN_POISON_USE (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This should get expanded in the tsan pass. */
static void
expand_TSAN_FUNC_EXIT (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This should get expanded in the lower pass. */
static void
expand_FALLTHROUGH (internal_fn, gcall *call)
{
error_at (gimple_location (call),
"invalid use of attribute %<fallthrough%>");
}
/* Return minimum precision needed to represent all values
of ARG in SIGNed integral type. */
static int
get_min_precision (tree arg, signop sign)
{
int prec = TYPE_PRECISION (TREE_TYPE (arg));
int cnt = 0;
signop orig_sign = sign;
if (TREE_CODE (arg) == INTEGER_CST)
{
int p;
if (TYPE_SIGN (TREE_TYPE (arg)) != sign)
{
widest_int w = wi::to_widest (arg);
w = wi::ext (w, prec, sign);
p = wi::min_precision (w, sign);
}
else
p = wi::min_precision (wi::to_wide (arg), sign);
return MIN (p, prec);
}
while (CONVERT_EXPR_P (arg)
&& INTEGRAL_TYPE_P (TREE_TYPE (TREE_OPERAND (arg, 0)))
&& TYPE_PRECISION (TREE_TYPE (TREE_OPERAND (arg, 0))) <= prec)
{
arg = TREE_OPERAND (arg, 0);
if (TYPE_PRECISION (TREE_TYPE (arg)) < prec)
{
if (TYPE_UNSIGNED (TREE_TYPE (arg)))
sign = UNSIGNED;
else if (sign == UNSIGNED && get_range_pos_neg (arg) != 1)
return prec + (orig_sign != sign);
prec = TYPE_PRECISION (TREE_TYPE (arg));
}
if (++cnt > 30)
return prec + (orig_sign != sign);
}
if (TREE_CODE (arg) != SSA_NAME)
return prec + (orig_sign != sign);
wide_int arg_min, arg_max;
while (get_range_info (arg, &arg_min, &arg_max) != VR_RANGE)
{
gimple *g = SSA_NAME_DEF_STMT (arg);
if (is_gimple_assign (g)
&& CONVERT_EXPR_CODE_P (gimple_assign_rhs_code (g)))
{
tree t = gimple_assign_rhs1 (g);
if (INTEGRAL_TYPE_P (TREE_TYPE (t))
&& TYPE_PRECISION (TREE_TYPE (t)) <= prec)
{
arg = t;
if (TYPE_PRECISION (TREE_TYPE (arg)) < prec)
{
if (TYPE_UNSIGNED (TREE_TYPE (arg)))
sign = UNSIGNED;
else if (sign == UNSIGNED && get_range_pos_neg (arg) != 1)
return prec + (orig_sign != sign);
prec = TYPE_PRECISION (TREE_TYPE (arg));
}
if (++cnt > 30)
return prec + (orig_sign != sign);
continue;
}
}
return prec + (orig_sign != sign);
}
if (sign == TYPE_SIGN (TREE_TYPE (arg)))
{
int p1 = wi::min_precision (arg_min, sign);
int p2 = wi::min_precision (arg_max, sign);
p1 = MAX (p1, p2);
prec = MIN (prec, p1);
}
else if (sign == UNSIGNED && !wi::neg_p (arg_min, SIGNED))
{
int p = wi::min_precision (arg_max, UNSIGNED);
prec = MIN (prec, p);
}
return prec + (orig_sign != sign);
}
/* Helper for expand_*_overflow. Set the __imag__ part to true
(1 except for signed:1 type, in which case store -1). */
static void
expand_arith_set_overflow (tree lhs, rtx target)
{
if (TYPE_PRECISION (TREE_TYPE (TREE_TYPE (lhs))) == 1
&& !TYPE_UNSIGNED (TREE_TYPE (TREE_TYPE (lhs))))
write_complex_part (target, constm1_rtx, true);
else
write_complex_part (target, const1_rtx, true);
}
/* Helper for expand_*_overflow. Store RES into the __real__ part
of TARGET. If RES has larger MODE than __real__ part of TARGET,
set the __imag__ part to 1 if RES doesn't fit into it. Similarly
if LHS has smaller precision than its mode. */
static void
expand_arith_overflow_result_store (tree lhs, rtx target,
scalar_int_mode mode, rtx res)
{
scalar_int_mode tgtmode
= as_a <scalar_int_mode> (GET_MODE_INNER (GET_MODE (target)));
rtx lres = res;
if (tgtmode != mode)
{
rtx_code_label *done_label = gen_label_rtx ();
int uns = TYPE_UNSIGNED (TREE_TYPE (TREE_TYPE (lhs)));
lres = convert_modes (tgtmode, mode, res, uns);
gcc_assert (GET_MODE_PRECISION (tgtmode) < GET_MODE_PRECISION (mode));
do_compare_rtx_and_jump (res, convert_modes (mode, tgtmode, lres, uns),
EQ, true, mode, NULL_RTX, NULL, done_label,
profile_probability::very_likely ());
expand_arith_set_overflow (lhs, target);
emit_label (done_label);
}
int prec = TYPE_PRECISION (TREE_TYPE (TREE_TYPE (lhs)));
int tgtprec = GET_MODE_PRECISION (tgtmode);
if (prec < tgtprec)
{
rtx_code_label *done_label = gen_label_rtx ();
int uns = TYPE_UNSIGNED (TREE_TYPE (TREE_TYPE (lhs)));
res = lres;
if (uns)
{
rtx mask
= immed_wide_int_const (wi::shifted_mask (0, prec, false, tgtprec),
tgtmode);
lres = expand_simple_binop (tgtmode, AND, res, mask, NULL_RTX,
true, OPTAB_LIB_WIDEN);
}
else
{
lres = expand_shift (LSHIFT_EXPR, tgtmode, res, tgtprec - prec,
NULL_RTX, 1);
lres = expand_shift (RSHIFT_EXPR, tgtmode, lres, tgtprec - prec,
NULL_RTX, 0);
}
do_compare_rtx_and_jump (res, lres,
EQ, true, tgtmode, NULL_RTX, NULL, done_label,
profile_probability::very_likely ());
expand_arith_set_overflow (lhs, target);
emit_label (done_label);
}
write_complex_part (target, lres, false);
}
/* Helper for expand_*_overflow. Store RES into TARGET. */
static void
expand_ubsan_result_store (rtx target, rtx res)
{
if (GET_CODE (target) == SUBREG && SUBREG_PROMOTED_VAR_P (target))
/* If this is a scalar in a register that is stored in a wider mode
than the declared mode, compute the result into its declared mode
and then convert to the wider mode. Our value is the computed
expression. */
convert_move (SUBREG_REG (target), res, SUBREG_PROMOTED_SIGN (target));
else
emit_move_insn (target, res);
}
/* Add sub/add overflow checking to the statement STMT.
CODE says whether the operation is +, or -. */
static void
expand_addsub_overflow (location_t loc, tree_code code, tree lhs,
tree arg0, tree arg1, bool unsr_p, bool uns0_p,
bool uns1_p, bool is_ubsan, tree *datap)
{
rtx res, target = NULL_RTX;
tree fn;
rtx_code_label *done_label = gen_label_rtx ();
rtx_code_label *do_error = gen_label_rtx ();
do_pending_stack_adjust ();
rtx op0 = expand_normal (arg0);
rtx op1 = expand_normal (arg1);
scalar_int_mode mode = SCALAR_INT_TYPE_MODE (TREE_TYPE (arg0));
int prec = GET_MODE_PRECISION (mode);
rtx sgn = immed_wide_int_const (wi::min_value (prec, SIGNED), mode);
bool do_xor = false;
if (is_ubsan)
gcc_assert (!unsr_p && !uns0_p && !uns1_p);
if (lhs)
{
target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
if (!is_ubsan)
write_complex_part (target, const0_rtx, true);
}
/* We assume both operands and result have the same precision
here (GET_MODE_BITSIZE (mode)), S stands for signed type
with that precision, U for unsigned type with that precision,
sgn for unsigned most significant bit in that precision.
s1 is signed first operand, u1 is unsigned first operand,
s2 is signed second operand, u2 is unsigned second operand,
sr is signed result, ur is unsigned result and the following
rules say how to compute result (which is always result of
the operands as if both were unsigned, cast to the right
signedness) and how to compute whether operation overflowed.
s1 + s2 -> sr
res = (S) ((U) s1 + (U) s2)
ovf = s2 < 0 ? res > s1 : res < s1 (or jump on overflow)
s1 - s2 -> sr
res = (S) ((U) s1 - (U) s2)
ovf = s2 < 0 ? res < s1 : res > s2 (or jump on overflow)
u1 + u2 -> ur
res = u1 + u2
ovf = res < u1 (or jump on carry, but RTL opts will handle it)
u1 - u2 -> ur
res = u1 - u2
ovf = res > u1 (or jump on carry, but RTL opts will handle it)
s1 + u2 -> sr
res = (S) ((U) s1 + u2)
ovf = ((U) res ^ sgn) < u2
s1 + u2 -> ur
t1 = (S) (u2 ^ sgn)
t2 = s1 + t1
res = (U) t2 ^ sgn
ovf = t1 < 0 ? t2 > s1 : t2 < s1 (or jump on overflow)
s1 - u2 -> sr
res = (S) ((U) s1 - u2)
ovf = u2 > ((U) s1 ^ sgn)
s1 - u2 -> ur
res = (U) s1 - u2
ovf = s1 < 0 || u2 > (U) s1
u1 - s2 -> sr
res = u1 - (U) s2
ovf = u1 >= ((U) s2 ^ sgn)
u1 - s2 -> ur
t1 = u1 ^ sgn
t2 = t1 - (U) s2
res = t2 ^ sgn
ovf = s2 < 0 ? (S) t2 < (S) t1 : (S) t2 > (S) t1 (or jump on overflow)
s1 + s2 -> ur
res = (U) s1 + (U) s2
ovf = s2 < 0 ? (s1 | (S) res) < 0) : (s1 & (S) res) < 0)
u1 + u2 -> sr
res = (S) (u1 + u2)
ovf = (U) res < u2 || res < 0
u1 - u2 -> sr
res = (S) (u1 - u2)
ovf = u1 >= u2 ? res < 0 : res >= 0
s1 - s2 -> ur
res = (U) s1 - (U) s2
ovf = s2 >= 0 ? ((s1 | (S) res) < 0) : ((s1 & (S) res) < 0) */
if (code == PLUS_EXPR && uns0_p && !uns1_p)
{
/* PLUS_EXPR is commutative, if operand signedness differs,
canonicalize to the first operand being signed and second
unsigned to simplify following code. */
std::swap (op0, op1);
std::swap (arg0, arg1);
uns0_p = false;
uns1_p = true;
}
/* u1 +- u2 -> ur */
if (uns0_p && uns1_p && unsr_p)
{
insn_code icode = optab_handler (code == PLUS_EXPR ? uaddv4_optab
: usubv4_optab, mode);
if (icode != CODE_FOR_nothing)
{
class expand_operand ops[4];
rtx_insn *last = get_last_insn ();
res = gen_reg_rtx (mode);
create_output_operand (&ops[0], res, mode);
create_input_operand (&ops[1], op0, mode);
create_input_operand (&ops[2], op1, mode);
create_fixed_operand (&ops[3], do_error);
if (maybe_expand_insn (icode, 4, ops))
{
last = get_last_insn ();
if (profile_status_for_fn (cfun) != PROFILE_ABSENT
&& JUMP_P (last)
&& any_condjump_p (last)
&& !find_reg_note (last, REG_BR_PROB, 0))
add_reg_br_prob_note (last,
profile_probability::very_unlikely ());
emit_jump (done_label);
goto do_error_label;
}
delete_insns_since (last);
}
/* Compute the operation. On RTL level, the addition is always
unsigned. */
res = expand_binop (mode, code == PLUS_EXPR ? add_optab : sub_optab,
op0, op1, NULL_RTX, false, OPTAB_LIB_WIDEN);
rtx tem = op0;
/* For PLUS_EXPR, the operation is commutative, so we can pick
operand to compare against. For prec <= BITS_PER_WORD, I think
preferring REG operand is better over CONST_INT, because
the CONST_INT might enlarge the instruction or CSE would need
to figure out we'd already loaded it into a register before.
For prec > BITS_PER_WORD, I think CONST_INT might be more beneficial,
as then the multi-word comparison can be perhaps simplified. */
if (code == PLUS_EXPR
&& (prec <= BITS_PER_WORD
? (CONST_SCALAR_INT_P (op0) && REG_P (op1))
: CONST_SCALAR_INT_P (op1)))
tem = op1;
do_compare_rtx_and_jump (res, tem, code == PLUS_EXPR ? GEU : LEU,
true, mode, NULL_RTX, NULL, done_label,
profile_probability::very_likely ());
goto do_error_label;
}
/* s1 +- u2 -> sr */
if (!uns0_p && uns1_p && !unsr_p)
{
/* Compute the operation. On RTL level, the addition is always
unsigned. */
res = expand_binop (mode, code == PLUS_EXPR ? add_optab : sub_optab,
op0, op1, NULL_RTX, false, OPTAB_LIB_WIDEN);
rtx tem = expand_binop (mode, add_optab,
code == PLUS_EXPR ? res : op0, sgn,
NULL_RTX, false, OPTAB_LIB_WIDEN);
do_compare_rtx_and_jump (tem, op1, GEU, true, mode, NULL_RTX, NULL,
done_label, profile_probability::very_likely ());
goto do_error_label;
}
/* s1 + u2 -> ur */
if (code == PLUS_EXPR && !uns0_p && uns1_p && unsr_p)
{
op1 = expand_binop (mode, add_optab, op1, sgn, NULL_RTX, false,
OPTAB_LIB_WIDEN);
/* As we've changed op1, we have to avoid using the value range
for the original argument. */
arg1 = error_mark_node;
do_xor = true;
goto do_signed;
}
/* u1 - s2 -> ur */
if (code == MINUS_EXPR && uns0_p && !uns1_p && unsr_p)
{
op0 = expand_binop (mode, add_optab, op0, sgn, NULL_RTX, false,
OPTAB_LIB_WIDEN);
/* As we've changed op0, we have to avoid using the value range
for the original argument. */
arg0 = error_mark_node;
do_xor = true;
goto do_signed;
}
/* s1 - u2 -> ur */
if (code == MINUS_EXPR && !uns0_p && uns1_p && unsr_p)
{
/* Compute the operation. On RTL level, the addition is always
unsigned. */
res = expand_binop (mode, sub_optab, op0, op1, NULL_RTX, false,
OPTAB_LIB_WIDEN);
int pos_neg = get_range_pos_neg (arg0);
if (pos_neg == 2)
/* If ARG0 is known to be always negative, this is always overflow. */
emit_jump (do_error);
else if (pos_neg == 3)
/* If ARG0 is not known to be always positive, check at runtime. */
do_compare_rtx_and_jump (op0, const0_rtx, LT, false, mode, NULL_RTX,
NULL, do_error, profile_probability::very_unlikely ());
do_compare_rtx_and_jump (op1, op0, LEU, true, mode, NULL_RTX, NULL,
done_label, profile_probability::very_likely ());
goto do_error_label;
}
/* u1 - s2 -> sr */
if (code == MINUS_EXPR && uns0_p && !uns1_p && !unsr_p)
{
/* Compute the operation. On RTL level, the addition is always
unsigned. */
res = expand_binop (mode, sub_optab, op0, op1, NULL_RTX, false,
OPTAB_LIB_WIDEN);
rtx tem = expand_binop (mode, add_optab, op1, sgn, NULL_RTX, false,
OPTAB_LIB_WIDEN);
do_compare_rtx_and_jump (op0, tem, LTU, true, mode, NULL_RTX, NULL,
done_label, profile_probability::very_likely ());
goto do_error_label;
}
/* u1 + u2 -> sr */
if (code == PLUS_EXPR && uns0_p && uns1_p && !unsr_p)
{
/* Compute the operation. On RTL level, the addition is always
unsigned. */
res = expand_binop (mode, add_optab, op0, op1, NULL_RTX, false,
OPTAB_LIB_WIDEN);
do_compare_rtx_and_jump (res, const0_rtx, LT, false, mode, NULL_RTX,
NULL, do_error, profile_probability::very_unlikely ());
rtx tem = op1;
/* The operation is commutative, so we can pick operand to compare
against. For prec <= BITS_PER_WORD, I think preferring REG operand
is better over CONST_INT, because the CONST_INT might enlarge the
instruction or CSE would need to figure out we'd already loaded it
into a register before. For prec > BITS_PER_WORD, I think CONST_INT
might be more beneficial, as then the multi-word comparison can be
perhaps simplified. */
if (prec <= BITS_PER_WORD
? (CONST_SCALAR_INT_P (op1) && REG_P (op0))
: CONST_SCALAR_INT_P (op0))
tem = op0;
do_compare_rtx_and_jump (res, tem, GEU, true, mode, NULL_RTX, NULL,
done_label, profile_probability::very_likely ());
goto do_error_label;
}
/* s1 +- s2 -> ur */
if (!uns0_p && !uns1_p && unsr_p)
{
/* Compute the operation. On RTL level, the addition is always
unsigned. */
res = expand_binop (mode, code == PLUS_EXPR ? add_optab : sub_optab,
op0, op1, NULL_RTX, false, OPTAB_LIB_WIDEN);
int pos_neg = get_range_pos_neg (arg1);
if (code == PLUS_EXPR)
{
int pos_neg0 = get_range_pos_neg (arg0);
if (pos_neg0 != 3 && pos_neg == 3)
{
std::swap (op0, op1);
pos_neg = pos_neg0;
}
}
rtx tem;
if (pos_neg != 3)
{
tem = expand_binop (mode, ((pos_neg == 1) ^ (code == MINUS_EXPR))
? and_optab : ior_optab,
op0, res, NULL_RTX, false, OPTAB_LIB_WIDEN);
do_compare_rtx_and_jump (tem, const0_rtx, GE, false, mode, NULL,
NULL, done_label, profile_probability::very_likely ());
}
else
{
rtx_code_label *do_ior_label = gen_label_rtx ();
do_compare_rtx_and_jump (op1, const0_rtx,
code == MINUS_EXPR ? GE : LT, false, mode,
NULL_RTX, NULL, do_ior_label,
profile_probability::even ());
tem = expand_binop (mode, and_optab, op0, res, NULL_RTX, false,
OPTAB_LIB_WIDEN);
do_compare_rtx_and_jump (tem, const0_rtx, GE, false, mode, NULL_RTX,
NULL, done_label, profile_probability::very_likely ());
emit_jump (do_error);
emit_label (do_ior_label);
tem = expand_binop (mode, ior_optab, op0, res, NULL_RTX, false,
OPTAB_LIB_WIDEN);
do_compare_rtx_and_jump (tem, const0_rtx, GE, false, mode, NULL_RTX,
NULL, done_label, profile_probability::very_likely ());
}
goto do_error_label;
}
/* u1 - u2 -> sr */
if (code == MINUS_EXPR && uns0_p && uns1_p && !unsr_p)
{
/* Compute the operation. On RTL level, the addition is always
unsigned. */
res = expand_binop (mode, sub_optab, op0, op1, NULL_RTX, false,
OPTAB_LIB_WIDEN);
rtx_code_label *op0_geu_op1 = gen_label_rtx ();
do_compare_rtx_and_jump (op0, op1, GEU, true, mode, NULL_RTX, NULL,
op0_geu_op1, profile_probability::even ());
do_compare_rtx_and_jump (res, const0_rtx, LT, false, mode, NULL_RTX,
NULL, done_label, profile_probability::very_likely ());
emit_jump (do_error);
emit_label (op0_geu_op1);
do_compare_rtx_and_jump (res, const0_rtx, GE, false, mode, NULL_RTX,
NULL, done_label, profile_probability::very_likely ());
goto do_error_label;
}
gcc_assert (!uns0_p && !uns1_p && !unsr_p);
/* s1 +- s2 -> sr */
do_signed:
{
insn_code icode = optab_handler (code == PLUS_EXPR ? addv4_optab
: subv4_optab, mode);
if (icode != CODE_FOR_nothing)
{
class expand_operand ops[4];
rtx_insn *last = get_last_insn ();
res = gen_reg_rtx (mode);
create_output_operand (&ops[0], res, mode);
create_input_operand (&ops[1], op0, mode);
create_input_operand (&ops[2], op1, mode);
create_fixed_operand (&ops[3], do_error);
if (maybe_expand_insn (icode, 4, ops))
{
last = get_last_insn ();
if (profile_status_for_fn (cfun) != PROFILE_ABSENT
&& JUMP_P (last)
&& any_condjump_p (last)
&& !find_reg_note (last, REG_BR_PROB, 0))
add_reg_br_prob_note (last,
profile_probability::very_unlikely ());
emit_jump (done_label);
goto do_error_label;
}
delete_insns_since (last);
}
/* Compute the operation. On RTL level, the addition is always
unsigned. */
res = expand_binop (mode, code == PLUS_EXPR ? add_optab : sub_optab,
op0, op1, NULL_RTX, false, OPTAB_LIB_WIDEN);
/* If we can prove that one of the arguments (for MINUS_EXPR only
the second operand, as subtraction is not commutative) is always
non-negative or always negative, we can do just one comparison
and conditional jump. */
int pos_neg = get_range_pos_neg (arg1);
if (code == PLUS_EXPR)
{
int pos_neg0 = get_range_pos_neg (arg0);
if (pos_neg0 != 3 && pos_neg == 3)
{
std::swap (op0, op1);
pos_neg = pos_neg0;
}
}
/* Addition overflows if and only if the two operands have the same sign,
and the result has the opposite sign. Subtraction overflows if and
only if the two operands have opposite sign, and the subtrahend has
the same sign as the result. Here 0 is counted as positive. */
if (pos_neg == 3)
{
/* Compute op0 ^ op1 (operands have opposite sign). */
rtx op_xor = expand_binop (mode, xor_optab, op0, op1, NULL_RTX, false,
OPTAB_LIB_WIDEN);
/* Compute res ^ op1 (result and 2nd operand have opposite sign). */
rtx res_xor = expand_binop (mode, xor_optab, res, op1, NULL_RTX, false,
OPTAB_LIB_WIDEN);
rtx tem;
if (code == PLUS_EXPR)
{
/* Compute (res ^ op1) & ~(op0 ^ op1). */
tem = expand_unop (mode, one_cmpl_optab, op_xor, NULL_RTX, false);
tem = expand_binop (mode, and_optab, res_xor, tem, NULL_RTX, false,
OPTAB_LIB_WIDEN);
}
else
{
/* Compute (op0 ^ op1) & ~(res ^ op1). */
tem = expand_unop (mode, one_cmpl_optab, res_xor, NULL_RTX, false);
tem = expand_binop (mode, and_optab, op_xor, tem, NULL_RTX, false,
OPTAB_LIB_WIDEN);
}
/* No overflow if the result has bit sign cleared. */
do_compare_rtx_and_jump (tem, const0_rtx, GE, false, mode, NULL_RTX,
NULL, done_label, profile_probability::very_likely ());
}
/* Compare the result of the operation with the first operand.
No overflow for addition if second operand is positive and result
is larger or second operand is negative and result is smaller.
Likewise for subtraction with sign of second operand flipped. */
else
do_compare_rtx_and_jump (res, op0,
(pos_neg == 1) ^ (code == MINUS_EXPR) ? GE : LE,
false, mode, NULL_RTX, NULL, done_label,
profile_probability::very_likely ());
}
do_error_label:
emit_label (do_error);
if (is_ubsan)
{
/* Expand the ubsan builtin call. */
push_temp_slots ();
fn = ubsan_build_overflow_builtin (code, loc, TREE_TYPE (arg0),
arg0, arg1, datap);
expand_normal (fn);
pop_temp_slots ();
do_pending_stack_adjust ();
}
else if (lhs)
expand_arith_set_overflow (lhs, target);
/* We're done. */
emit_label (done_label);
if (lhs)
{
if (is_ubsan)
expand_ubsan_result_store (target, res);
else
{
if (do_xor)
res = expand_binop (mode, add_optab, res, sgn, NULL_RTX, false,
OPTAB_LIB_WIDEN);
expand_arith_overflow_result_store (lhs, target, mode, res);
}
}
}
/* Add negate overflow checking to the statement STMT. */
static void
expand_neg_overflow (location_t loc, tree lhs, tree arg1, bool is_ubsan,
tree *datap)
{
rtx res, op1;
tree fn;
rtx_code_label *done_label, *do_error;
rtx target = NULL_RTX;
done_label = gen_label_rtx ();
do_error = gen_label_rtx ();
do_pending_stack_adjust ();
op1 = expand_normal (arg1);
scalar_int_mode mode = SCALAR_INT_TYPE_MODE (TREE_TYPE (arg1));
if (lhs)
{
target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
if (!is_ubsan)
write_complex_part (target, const0_rtx, true);
}
enum insn_code icode = optab_handler (negv3_optab, mode);
if (icode != CODE_FOR_nothing)
{
class expand_operand ops[3];
rtx_insn *last = get_last_insn ();
res = gen_reg_rtx (mode);
create_output_operand (&ops[0], res, mode);
create_input_operand (&ops[1], op1, mode);
create_fixed_operand (&ops[2], do_error);
if (maybe_expand_insn (icode, 3, ops))
{
last = get_last_insn ();
if (profile_status_for_fn (cfun) != PROFILE_ABSENT
&& JUMP_P (last)
&& any_condjump_p (last)
&& !find_reg_note (last, REG_BR_PROB, 0))
add_reg_br_prob_note (last,
profile_probability::very_unlikely ());
emit_jump (done_label);
}
else
{
delete_insns_since (last);
icode = CODE_FOR_nothing;
}
}
if (icode == CODE_FOR_nothing)
{
/* Compute the operation. On RTL level, the addition is always
unsigned. */
res = expand_unop (mode, neg_optab, op1, NULL_RTX, false);
/* Compare the operand with the most negative value. */
rtx minv = expand_normal (TYPE_MIN_VALUE (TREE_TYPE (arg1)));
do_compare_rtx_and_jump (op1, minv, NE, true, mode, NULL_RTX, NULL,
done_label, profile_probability::very_likely ());
}
emit_label (do_error);
if (is_ubsan)
{
/* Expand the ubsan builtin call. */
push_temp_slots ();
fn = ubsan_build_overflow_builtin (NEGATE_EXPR, loc, TREE_TYPE (arg1),
arg1, NULL_TREE, datap);
expand_normal (fn);
pop_temp_slots ();
do_pending_stack_adjust ();
}
else if (lhs)
expand_arith_set_overflow (lhs, target);
/* We're done. */
emit_label (done_label);
if (lhs)
{
if (is_ubsan)
expand_ubsan_result_store (target, res);
else
expand_arith_overflow_result_store (lhs, target, mode, res);
}
}
/* Return true if UNS WIDEN_MULT_EXPR with result mode WMODE and operand
mode MODE can be expanded without using a libcall. */
static bool
can_widen_mult_without_libcall (scalar_int_mode wmode, scalar_int_mode mode,
rtx op0, rtx op1, bool uns)
{
if (find_widening_optab_handler (umul_widen_optab, wmode, mode)
!= CODE_FOR_nothing)
return true;
if (find_widening_optab_handler (smul_widen_optab, wmode, mode)
!= CODE_FOR_nothing)
return true;
rtx_insn *last = get_last_insn ();
if (CONSTANT_P (op0))
op0 = convert_modes (wmode, mode, op0, uns);
else
op0 = gen_raw_REG (wmode, LAST_VIRTUAL_REGISTER + 1);
if (CONSTANT_P (op1))
op1 = convert_modes (wmode, mode, op1, uns);
else
op1 = gen_raw_REG (wmode, LAST_VIRTUAL_REGISTER + 2);
rtx ret = expand_mult (wmode, op0, op1, NULL_RTX, uns, true);
delete_insns_since (last);
return ret != NULL_RTX;
}
/* Add mul overflow checking to the statement STMT. */
static void
expand_mul_overflow (location_t loc, tree lhs, tree arg0, tree arg1,
bool unsr_p, bool uns0_p, bool uns1_p, bool is_ubsan,
tree *datap)
{
rtx res, op0, op1;
tree fn, type;
rtx_code_label *done_label, *do_error;
rtx target = NULL_RTX;
signop sign;
enum insn_code icode;
done_label = gen_label_rtx ();
do_error = gen_label_rtx ();
do_pending_stack_adjust ();
op0 = expand_normal (arg0);
op1 = expand_normal (arg1);
scalar_int_mode mode = SCALAR_INT_TYPE_MODE (TREE_TYPE (arg0));
bool uns = unsr_p;
if (lhs)
{
target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
if (!is_ubsan)
write_complex_part (target, const0_rtx, true);
}
if (is_ubsan)
gcc_assert (!unsr_p && !uns0_p && !uns1_p);
/* We assume both operands and result have the same precision
here (GET_MODE_BITSIZE (mode)), S stands for signed type
with that precision, U for unsigned type with that precision,
sgn for unsigned most significant bit in that precision.
s1 is signed first operand, u1 is unsigned first operand,
s2 is signed second operand, u2 is unsigned second operand,
sr is signed result, ur is unsigned result and the following
rules say how to compute result (which is always result of
the operands as if both were unsigned, cast to the right
signedness) and how to compute whether operation overflowed.
main_ovf (false) stands for jump on signed multiplication
overflow or the main algorithm with uns == false.
main_ovf (true) stands for jump on unsigned multiplication
overflow or the main algorithm with uns == true.
s1 * s2 -> sr
res = (S) ((U) s1 * (U) s2)
ovf = main_ovf (false)
u1 * u2 -> ur
res = u1 * u2
ovf = main_ovf (true)
s1 * u2 -> ur
res = (U) s1 * u2
ovf = (s1 < 0 && u2) || main_ovf (true)
u1 * u2 -> sr
res = (S) (u1 * u2)
ovf = res < 0 || main_ovf (true)
s1 * u2 -> sr
res = (S) ((U) s1 * u2)
ovf = (S) u2 >= 0 ? main_ovf (false)
: (s1 != 0 && (s1 != -1 || u2 != (U) res))
s1 * s2 -> ur
t1 = (s1 & s2) < 0 ? (-(U) s1) : ((U) s1)
t2 = (s1 & s2) < 0 ? (-(U) s2) : ((U) s2)
res = t1 * t2
ovf = (s1 ^ s2) < 0 ? (s1 && s2) : main_ovf (true) */
if (uns0_p && !uns1_p)
{
/* Multiplication is commutative, if operand signedness differs,
canonicalize to the first operand being signed and second
unsigned to simplify following code. */
std::swap (op0, op1);
std::swap (arg0, arg1);
uns0_p = false;
uns1_p = true;
}
int pos_neg0 = get_range_pos_neg (arg0);
int pos_neg1 = get_range_pos_neg (arg1);
/* s1 * u2 -> ur */
if (!uns0_p && uns1_p && unsr_p)
{
switch (pos_neg0)
{
case 1:
/* If s1 is non-negative, just perform normal u1 * u2 -> ur. */
goto do_main;
case 2:
/* If s1 is negative, avoid the main code, just multiply and
signal overflow if op1 is not 0. */
struct separate_ops ops;
ops.code = MULT_EXPR;
ops.type = TREE_TYPE (arg1);
ops.op0 = make_tree (ops.type, op0);
ops.op1 = make_tree (ops.type, op1);
ops.op2 = NULL_TREE;
ops.location = loc;
res = expand_expr_real_2 (&ops, NULL_RTX, mode, EXPAND_NORMAL);
do_compare_rtx_and_jump (op1, const0_rtx, EQ, true, mode, NULL_RTX,
NULL, done_label, profile_probability::very_likely ());
goto do_error_label;
case 3:
rtx_code_label *do_main_label;
do_main_label = gen_label_rtx ();
do_compare_rtx_and_jump (op0, const0_rtx, GE, false, mode, NULL_RTX,
NULL, do_main_label, profile_probability::very_likely ());
do_compare_rtx_and_jump (op1, const0_rtx, EQ, true, mode, NULL_RTX,
NULL, do_main_label, profile_probability::very_likely ());
expand_arith_set_overflow (lhs, target);
emit_label (do_main_label);
goto do_main;
default:
gcc_unreachable ();
}
}
/* u1 * u2 -> sr */
if (uns0_p && uns1_p && !unsr_p)
{
uns = true;
/* Rest of handling of this case after res is computed. */
goto do_main;
}
/* s1 * u2 -> sr */
if (!uns0_p && uns1_p && !unsr_p)
{
switch (pos_neg1)
{
case 1:
goto do_main;
case 2:
/* If (S) u2 is negative (i.e. u2 is larger than maximum of S,
avoid the main code, just multiply and signal overflow
unless 0 * u2 or -1 * ((U) Smin). */
struct separate_ops ops;
ops.code = MULT_EXPR;
ops.type = TREE_TYPE (arg1);
ops.op0 = make_tree (ops.type, op0);
ops.op1 = make_tree (ops.type, op1);
ops.op2 = NULL_TREE;
ops.location = loc;
res = expand_expr_real_2 (&ops, NULL_RTX, mode, EXPAND_NORMAL);
do_compare_rtx_and_jump (op0, const0_rtx, EQ, true, mode, NULL_RTX,
NULL, done_label, profile_probability::very_likely ());
do_compare_rtx_and_jump (op0, constm1_rtx, NE, true, mode, NULL_RTX,
NULL, do_error, profile_probability::very_unlikely ());
int prec;
prec = GET_MODE_PRECISION (mode);
rtx sgn;
sgn = immed_wide_int_const (wi::min_value (prec, SIGNED), mode);
do_compare_rtx_and_jump (op1, sgn, EQ, true, mode, NULL_RTX,
NULL, done_label, profile_probability::very_likely ());
goto do_error_label;
case 3:
/* Rest of handling of this case after res is computed. */
goto do_main;
default:
gcc_unreachable ();
}
}
/* s1 * s2 -> ur */
if (!uns0_p && !uns1_p && unsr_p)
{
rtx tem;
switch (pos_neg0 | pos_neg1)
{
case 1: /* Both operands known to be non-negative. */
goto do_main;
case 2: /* Both operands known to be negative. */
op0 = expand_unop (mode, neg_optab, op0, NULL_RTX, false);
op1 = expand_unop (mode, neg_optab, op1, NULL_RTX, false);
/* Avoid looking at arg0/arg1 ranges, as we've changed
the arguments. */
arg0 = error_mark_node;
arg1 = error_mark_node;
goto do_main;
case 3:
if ((pos_neg0 ^ pos_neg1) == 3)
{
/* If one operand is known to be negative and the other
non-negative, this overflows always, unless the non-negative
one is 0. Just do normal multiply and set overflow
unless one of the operands is 0. */
struct separate_ops ops;
ops.code = MULT_EXPR;
ops.type
= build_nonstandard_integer_type (GET_MODE_PRECISION (mode),
1);
ops.op0 = make_tree (ops.type, op0);
ops.op1 = make_tree (ops.type, op1);
ops.op2 = NULL_TREE;
ops.location = loc;
res = expand_expr_real_2 (&ops, NULL_RTX, mode, EXPAND_NORMAL);
do_compare_rtx_and_jump (pos_neg0 == 1 ? op0 : op1, const0_rtx, EQ,
true, mode, NULL_RTX, NULL, done_label,
profile_probability::very_likely ());
goto do_error_label;
}
/* The general case, do all the needed comparisons at runtime. */
rtx_code_label *do_main_label, *after_negate_label;
rtx rop0, rop1;
rop0 = gen_reg_rtx (mode);
rop1 = gen_reg_rtx (mode);
emit_move_insn (rop0, op0);
emit_move_insn (rop1, op1);
op0 = rop0;
op1 = rop1;
do_main_label = gen_label_rtx ();
after_negate_label = gen_label_rtx ();
tem = expand_binop (mode, and_optab, op0, op1, NULL_RTX, false,
OPTAB_LIB_WIDEN);
do_compare_rtx_and_jump (tem, const0_rtx, GE, false, mode, NULL_RTX,
NULL, after_negate_label, profile_probability::very_likely ());
/* Both arguments negative here, negate them and continue with
normal unsigned overflow checking multiplication. */
emit_move_insn (op0, expand_unop (mode, neg_optab, op0,
NULL_RTX, false));
emit_move_insn (op1, expand_unop (mode, neg_optab, op1,
NULL_RTX, false));
/* Avoid looking at arg0/arg1 ranges, as we might have changed
the arguments. */
arg0 = error_mark_node;
arg1 = error_mark_node;
emit_jump (do_main_label);
emit_label (after_negate_label);
tem = expand_binop (mode, xor_optab, op0, op1, NULL_RTX, false,
OPTAB_LIB_WIDEN);
do_compare_rtx_and_jump (tem, const0_rtx, GE, false, mode, NULL_RTX,
NULL, do_main_label,
profile_probability::very_likely ());
/* One argument is negative here, the other positive. This
overflows always, unless one of the arguments is 0. But
if e.g. s2 is 0, (U) s1 * 0 doesn't overflow, whatever s1
is, thus we can keep do_main code oring in overflow as is. */
if (pos_neg0 != 2)
do_compare_rtx_and_jump (op0, const0_rtx, EQ, true, mode, NULL_RTX,
NULL, do_main_label,
profile_probability::very_unlikely ());
if (pos_neg1 != 2)
do_compare_rtx_and_jump (op1, const0_rtx, EQ, true, mode, NULL_RTX,
NULL, do_main_label,
profile_probability::very_unlikely ());
expand_arith_set_overflow (lhs, target);
emit_label (do_main_label);
goto do_main;
default:
gcc_unreachable ();
}
}
do_main:
type = build_nonstandard_integer_type (GET_MODE_PRECISION (mode), uns);
sign = uns ? UNSIGNED : SIGNED;
icode = optab_handler (uns ? umulv4_optab : mulv4_optab, mode);
if (uns
&& (integer_pow2p (arg0) || integer_pow2p (arg1))
&& (optimize_insn_for_speed_p () || icode == CODE_FOR_nothing))
{
/* Optimize unsigned multiplication by power of 2 constant
using 2 shifts, one for result, one to extract the shifted
out bits to see if they are all zero.
Don't do this if optimizing for size and we have umulv4_optab,
in that case assume multiplication will be shorter.
This is heuristics based on the single target that provides
umulv4 right now (i?86/x86_64), if further targets add it, this
might need to be revisited.
Cases where both operands are constant should be folded already
during GIMPLE, and cases where one operand is constant but not
power of 2 are questionable, either the WIDEN_MULT_EXPR case
below can be done without multiplication, just by shifts and adds,
or we'd need to divide the result (and hope it actually doesn't
really divide nor multiply) and compare the result of the division
with the original operand. */
rtx opn0 = op0;
rtx opn1 = op1;
tree argn0 = arg0;
tree argn1 = arg1;
if (integer_pow2p (arg0))
{
std::swap (opn0, opn1);
std::swap (argn0, argn1);
}
int cnt = tree_log2 (argn1);
if (cnt >= 0 && cnt < GET_MODE_PRECISION (mode))
{
rtx upper = const0_rtx;
res = expand_shift (LSHIFT_EXPR, mode, opn0, cnt, NULL_RTX, uns);
if (cnt != 0)
upper = expand_shift (RSHIFT_EXPR, mode, opn0,
GET_MODE_PRECISION (mode) - cnt,
NULL_RTX, uns);
do_compare_rtx_and_jump (upper, const0_rtx, EQ, true, mode,
NULL_RTX, NULL, done_label,
profile_probability::very_likely ());
goto do_error_label;
}
}
if (icode != CODE_FOR_nothing)
{
class expand_operand ops[4];
rtx_insn *last = get_last_insn ();
res = gen_reg_rtx (mode);
create_output_operand (&ops[0], res, mode);
create_input_operand (&ops[1], op0, mode);
create_input_operand (&ops[2], op1, mode);
create_fixed_operand (&ops[3], do_error);
if (maybe_expand_insn (icode, 4, ops))
{
last = get_last_insn ();
if (profile_status_for_fn (cfun) != PROFILE_ABSENT
&& JUMP_P (last)
&& any_condjump_p (last)
&& !find_reg_note (last, REG_BR_PROB, 0))
add_reg_br_prob_note (last,
profile_probability::very_unlikely ());
emit_jump (done_label);
}
else
{
delete_insns_since (last);
icode = CODE_FOR_nothing;
}
}
if (icode == CODE_FOR_nothing)
{
struct separate_ops ops;
int prec = GET_MODE_PRECISION (mode);
scalar_int_mode hmode, wmode;
ops.op0 = make_tree (type, op0);
ops.op1 = make_tree (type, op1);
ops.op2 = NULL_TREE;
ops.location = loc;
/* Optimize unsigned overflow check where we don't use the
multiplication result, just whether overflow happened.
If we can do MULT_HIGHPART_EXPR, that followed by
comparison of the result against zero is cheapest.
We'll still compute res, but it should be DCEd later. */
use_operand_p use;
gimple *use_stmt;
if (!is_ubsan
&& lhs
&& uns
&& !(uns0_p && uns1_p && !unsr_p)
&& can_mult_highpart_p (mode, uns) == 1
&& single_imm_use (lhs, &use, &use_stmt)
&& is_gimple_assign (use_stmt)
&& gimple_assign_rhs_code (use_stmt) == IMAGPART_EXPR)
goto highpart;
if (GET_MODE_2XWIDER_MODE (mode).exists (&wmode)
&& targetm.scalar_mode_supported_p (wmode)
&& can_widen_mult_without_libcall (wmode, mode, op0, op1, uns))
{
twoxwider:
ops.code = WIDEN_MULT_EXPR;
ops.type
= build_nonstandard_integer_type (GET_MODE_PRECISION (wmode), uns);
res = expand_expr_real_2 (&ops, NULL_RTX, wmode, EXPAND_NORMAL);
rtx hipart = expand_shift (RSHIFT_EXPR, wmode, res, prec,
NULL_RTX, uns);
hipart = convert_modes (mode, wmode, hipart, uns);
res = convert_modes (mode, wmode, res, uns);
if (uns)
/* For the unsigned multiplication, there was overflow if
HIPART is non-zero. */
do_compare_rtx_and_jump (hipart, const0_rtx, EQ, true, mode,
NULL_RTX, NULL, done_label,
profile_probability::very_likely ());
else
{
rtx signbit = expand_shift (RSHIFT_EXPR, mode, res, prec - 1,
NULL_RTX, 0);
/* RES is low half of the double width result, HIPART
the high half. There was overflow if
HIPART is different from RES < 0 ? -1 : 0. */
do_compare_rtx_and_jump (signbit, hipart, EQ, true, mode,
NULL_RTX, NULL, done_label,
profile_probability::very_likely ());
}
}
else if (can_mult_highpart_p (mode, uns) == 1)
{
highpart:
ops.code = MULT_HIGHPART_EXPR;
ops.type = type;
rtx hipart = expand_expr_real_2 (&ops, NULL_RTX, mode,
EXPAND_NORMAL);
ops.code = MULT_EXPR;
res = expand_expr_real_2 (&ops, NULL_RTX, mode, EXPAND_NORMAL);
if (uns)
/* For the unsigned multiplication, there was overflow if
HIPART is non-zero. */
do_compare_rtx_and_jump (hipart, const0_rtx, EQ, true, mode,
NULL_RTX, NULL, done_label,
profile_probability::very_likely ());
else
{
rtx signbit = expand_shift (RSHIFT_EXPR, mode, res, prec - 1,
NULL_RTX, 0);
/* RES is low half of the double width result, HIPART
the high half. There was overflow if
HIPART is different from RES < 0 ? -1 : 0. */
do_compare_rtx_and_jump (signbit, hipart, EQ, true, mode,
NULL_RTX, NULL, done_label,
profile_probability::very_likely ());
}
}
else if (int_mode_for_size (prec / 2, 1).exists (&hmode)
&& 2 * GET_MODE_PRECISION (hmode) == prec)
{
rtx_code_label *large_op0 = gen_label_rtx ();
rtx_code_label *small_op0_large_op1 = gen_label_rtx ();
rtx_code_label *one_small_one_large = gen_label_rtx ();
rtx_code_label *both_ops_large = gen_label_rtx ();
rtx_code_label *after_hipart_neg = uns ? NULL : gen_label_rtx ();
rtx_code_label *after_lopart_neg = uns ? NULL : gen_label_rtx ();
rtx_code_label *do_overflow = gen_label_rtx ();
rtx_code_label *hipart_different = uns ? NULL : gen_label_rtx ();
unsigned int hprec = GET_MODE_PRECISION (hmode);
rtx hipart0 = expand_shift (RSHIFT_EXPR, mode, op0, hprec,
NULL_RTX, uns);
hipart0 = convert_modes (hmode, mode, hipart0, uns);
rtx lopart0 = convert_modes (hmode, mode, op0, uns);
rtx signbit0 = const0_rtx;
if (!uns)
signbit0 = expand_shift (RSHIFT_EXPR, hmode, lopart0, hprec - 1,
NULL_RTX, 0);
rtx hipart1 = expand_shift (RSHIFT_EXPR, mode, op1, hprec,
NULL_RTX, uns);
hipart1 = convert_modes (hmode, mode, hipart1, uns);
rtx lopart1 = convert_modes (hmode, mode, op1, uns);
rtx signbit1 = const0_rtx;
if (!uns)
signbit1 = expand_shift (RSHIFT_EXPR, hmode, lopart1, hprec - 1,
NULL_RTX, 0);
res = gen_reg_rtx (mode);
/* True if op0 resp. op1 are known to be in the range of
halfstype. */
bool op0_small_p = false;
bool op1_small_p = false;
/* True if op0 resp. op1 are known to have all zeros or all ones
in the upper half of bits, but are not known to be
op{0,1}_small_p. */
bool op0_medium_p = false;
bool op1_medium_p = false;
/* -1 if op{0,1} is known to be negative, 0 if it is known to be
nonnegative, 1 if unknown. */
int op0_sign = 1;
int op1_sign = 1;
if (pos_neg0 == 1)
op0_sign = 0;
else if (pos_neg0 == 2)
op0_sign = -1;
if (pos_neg1 == 1)
op1_sign = 0;
else if (pos_neg1 == 2)
op1_sign = -1;
unsigned int mprec0 = prec;
if (arg0 != error_mark_node)
mprec0 = get_min_precision (arg0, sign);
if (mprec0 <= hprec)
op0_small_p = true;
else if (!uns && mprec0 <= hprec + 1)
op0_medium_p = true;
unsigned int mprec1 = prec;
if (arg1 != error_mark_node)
mprec1 = get_min_precision (arg1, sign);
if (mprec1 <= hprec)
op1_small_p = true;
else if (!uns && mprec1 <= hprec + 1)
op1_medium_p = true;
int smaller_sign = 1;
int larger_sign = 1;
if (op0_small_p)
{
smaller_sign = op0_sign;
larger_sign = op1_sign;
}
else if (op1_small_p)
{
smaller_sign = op1_sign;
larger_sign = op0_sign;
}
else if (op0_sign == op1_sign)
{
smaller_sign = op0_sign;
larger_sign = op0_sign;
}
if (!op0_small_p)
do_compare_rtx_and_jump (signbit0, hipart0, NE, true, hmode,
NULL_RTX, NULL, large_op0,
profile_probability::unlikely ());
if (!op1_small_p)
do_compare_rtx_and_jump (signbit1, hipart1, NE, true, hmode,
NULL_RTX, NULL, small_op0_large_op1,
profile_probability::unlikely ());
/* If both op0 and op1 are sign (!uns) or zero (uns) extended from
hmode to mode, the multiplication will never overflow. We can
do just one hmode x hmode => mode widening multiplication. */
tree halfstype = build_nonstandard_integer_type (hprec, uns);
ops.op0 = make_tree (halfstype, lopart0);
ops.op1 = make_tree (halfstype, lopart1);
ops.code = WIDEN_MULT_EXPR;
ops.type = type;
rtx thisres
= expand_expr_real_2 (&ops, NULL_RTX, mode, EXPAND_NORMAL);
emit_move_insn (res, thisres);
emit_jump (done_label);
emit_label (small_op0_large_op1);
/* If op0 is sign (!uns) or zero (uns) extended from hmode to mode,
but op1 is not, just swap the arguments and handle it as op1
sign/zero extended, op0 not. */
rtx larger = gen_reg_rtx (mode);
rtx hipart = gen_reg_rtx (hmode);
rtx lopart = gen_reg_rtx (hmode);
emit_move_insn (larger, op1);
emit_move_insn (hipart, hipart1);
emit_move_insn (lopart, lopart0);
emit_jump (one_small_one_large);
emit_label (large_op0);
if (!op1_small_p)
do_compare_rtx_and_jump (signbit1, hipart1, NE, true, hmode,
NULL_RTX, NULL, both_ops_large,
profile_probability::unlikely ());
/* If op1 is sign (!uns) or zero (uns) extended from hmode to mode,
but op0 is not, prepare larger, hipart and lopart pseudos and
handle it together with small_op0_large_op1. */
emit_move_insn (larger, op0);
emit_move_insn (hipart, hipart0);
emit_move_insn (lopart, lopart1);
emit_label (one_small_one_large);
/* lopart is the low part of the operand that is sign extended
to mode, larger is the other operand, hipart is the
high part of larger and lopart0 and lopart1 are the low parts
of both operands.
We perform lopart0 * lopart1 and lopart * hipart widening
multiplications. */
tree halfutype = build_nonstandard_integer_type (hprec, 1);
ops.op0 = make_tree (halfutype, lopart0);
ops.op1 = make_tree (halfutype, lopart1);
rtx lo0xlo1
= expand_expr_real_2 (&ops, NULL_RTX, mode, EXPAND_NORMAL);
ops.op0 = make_tree (halfutype, lopart);
ops.op1 = make_tree (halfutype, hipart);
rtx loxhi = gen_reg_rtx (mode);
rtx tem = expand_expr_real_2 (&ops, NULL_RTX, mode, EXPAND_NORMAL);
emit_move_insn (loxhi, tem);
if (!uns)
{
/* if (hipart < 0) loxhi -= lopart << (bitsize / 2); */
if (larger_sign == 0)
emit_jump (after_hipart_neg);
else if (larger_sign != -1)
do_compare_rtx_and_jump (hipart, const0_rtx, GE, false, hmode,
NULL_RTX, NULL, after_hipart_neg,
profile_probability::even ());
tem = convert_modes (mode, hmode, lopart, 1);
tem = expand_shift (LSHIFT_EXPR, mode, tem, hprec, NULL_RTX, 1);
tem = expand_simple_binop (mode, MINUS, loxhi, tem, NULL_RTX,
1, OPTAB_WIDEN);
emit_move_insn (loxhi, tem);
emit_label (after_hipart_neg);
/* if (lopart < 0) loxhi -= larger; */
if (smaller_sign == 0)
emit_jump (after_lopart_neg);
else if (smaller_sign != -1)
do_compare_rtx_and_jump (lopart, const0_rtx, GE, false, hmode,
NULL_RTX, NULL, after_lopart_neg,
profile_probability::even ());
tem = expand_simple_binop (mode, MINUS, loxhi, larger, NULL_RTX,
1, OPTAB_WIDEN);
emit_move_insn (loxhi, tem);
emit_label (after_lopart_neg);
}
/* loxhi += (uns) lo0xlo1 >> (bitsize / 2); */
tem = expand_shift (RSHIFT_EXPR, mode, lo0xlo1, hprec, NULL_RTX, 1);
tem = expand_simple_binop (mode, PLUS, loxhi, tem, NULL_RTX,
1, OPTAB_WIDEN);
emit_move_insn (loxhi, tem);
/* if (loxhi >> (bitsize / 2)
== (hmode) loxhi >> (bitsize / 2 - 1)) (if !uns)
if (loxhi >> (bitsize / 2) == 0 (if uns). */
rtx hipartloxhi = expand_shift (RSHIFT_EXPR, mode, loxhi, hprec,
NULL_RTX, 0);
hipartloxhi = convert_modes (hmode, mode, hipartloxhi, 0);
rtx signbitloxhi = const0_rtx;
if (!uns)
signbitloxhi = expand_shift (RSHIFT_EXPR, hmode,
convert_modes (hmode, mode,
loxhi, 0),
hprec - 1, NULL_RTX, 0);
do_compare_rtx_and_jump (signbitloxhi, hipartloxhi, NE, true, hmode,
NULL_RTX, NULL, do_overflow,
profile_probability::very_unlikely ());
/* res = (loxhi << (bitsize / 2)) | (hmode) lo0xlo1; */
rtx loxhishifted = expand_shift (LSHIFT_EXPR, mode, loxhi, hprec,
NULL_RTX, 1);
tem = convert_modes (mode, hmode,
convert_modes (hmode, mode, lo0xlo1, 1), 1);
tem = expand_simple_binop (mode, IOR, loxhishifted, tem, res,
1, OPTAB_WIDEN);
if (tem != res)
emit_move_insn (res, tem);
emit_jump (done_label);
emit_label (both_ops_large);
/* If both operands are large (not sign (!uns) or zero (uns)
extended from hmode), then perform the full multiplication
which will be the result of the operation.
The only cases which don't overflow are for signed multiplication
some cases where both hipart0 and highpart1 are 0 or -1.
For unsigned multiplication when high parts are both non-zero
this overflows always. */
ops.code = MULT_EXPR;
ops.op0 = make_tree (type, op0);
ops.op1 = make_tree (type, op1);
tem = expand_expr_real_2 (&ops, NULL_RTX, mode, EXPAND_NORMAL);
emit_move_insn (res, tem);
if (!uns)
{
if (!op0_medium_p)
{
tem = expand_simple_binop (hmode, PLUS, hipart0, const1_rtx,
NULL_RTX, 1, OPTAB_WIDEN);
do_compare_rtx_and_jump (tem, const1_rtx, GTU, true, hmode,
NULL_RTX, NULL, do_error,
profile_probability::very_unlikely ());
}
if (!op1_medium_p)
{
tem = expand_simple_binop (hmode, PLUS, hipart1, const1_rtx,
NULL_RTX, 1, OPTAB_WIDEN);
do_compare_rtx_and_jump (tem, const1_rtx, GTU, true, hmode,
NULL_RTX, NULL, do_error,
profile_probability::very_unlikely ());
}
/* At this point hipart{0,1} are both in [-1, 0]. If they are
the same, overflow happened if res is non-positive, if they
are different, overflow happened if res is positive. */
if (op0_sign != 1 && op1_sign != 1 && op0_sign != op1_sign)
emit_jump (hipart_different);
else if (op0_sign == 1 || op1_sign == 1)
do_compare_rtx_and_jump (hipart0, hipart1, NE, true, hmode,
NULL_RTX, NULL, hipart_different,
profile_probability::even ());
do_compare_rtx_and_jump (res, const0_rtx, LE, false, mode,
NULL_RTX, NULL, do_error,
profile_probability::very_unlikely ());
emit_jump (done_label);
emit_label (hipart_different);
do_compare_rtx_and_jump (res, const0_rtx, GE, false, mode,
NULL_RTX, NULL, do_error,
profile_probability::very_unlikely ());
emit_jump (done_label);
}
emit_label (do_overflow);
/* Overflow, do full multiplication and fallthru into do_error. */
ops.op0 = make_tree (type, op0);
ops.op1 = make_tree (type, op1);
tem = expand_expr_real_2 (&ops, NULL_RTX, mode, EXPAND_NORMAL);
emit_move_insn (res, tem);
}
else if (GET_MODE_2XWIDER_MODE (mode).exists (&wmode)
&& targetm.scalar_mode_supported_p (wmode))
/* Even emitting a libcall is better than not detecting overflow
at all. */
goto twoxwider;
else
{
gcc_assert (!is_ubsan);
ops.code = MULT_EXPR;
ops.type = type;
res = expand_expr_real_2 (&ops, NULL_RTX, mode, EXPAND_NORMAL);
emit_jump (done_label);
}
}
do_error_label:
emit_label (do_error);
if (is_ubsan)
{
/* Expand the ubsan builtin call. */
push_temp_slots ();
fn = ubsan_build_overflow_builtin (MULT_EXPR, loc, TREE_TYPE (arg0),
arg0, arg1, datap);
expand_normal (fn);
pop_temp_slots ();
do_pending_stack_adjust ();
}
else if (lhs)
expand_arith_set_overflow (lhs, target);
/* We're done. */
emit_label (done_label);
/* u1 * u2 -> sr */
if (uns0_p && uns1_p && !unsr_p)
{
rtx_code_label *all_done_label = gen_label_rtx ();
do_compare_rtx_and_jump (res, const0_rtx, GE, false, mode, NULL_RTX,
NULL, all_done_label, profile_probability::very_likely ());
expand_arith_set_overflow (lhs, target);
emit_label (all_done_label);
}
/* s1 * u2 -> sr */
if (!uns0_p && uns1_p && !unsr_p && pos_neg1 == 3)
{
rtx_code_label *all_done_label = gen_label_rtx ();
rtx_code_label *set_noovf = gen_label_rtx ();
do_compare_rtx_and_jump (op1, const0_rtx, GE, false, mode, NULL_RTX,
NULL, all_done_label, profile_probability::very_likely ());
expand_arith_set_overflow (lhs, target);
do_compare_rtx_and_jump (op0, const0_rtx, EQ, true, mode, NULL_RTX,
NULL, set_noovf, profile_probability::very_likely ());
do_compare_rtx_and_jump (op0, constm1_rtx, NE, true, mode, NULL_RTX,
NULL, all_done_label, profile_probability::very_unlikely ());
do_compare_rtx_and_jump (op1, res, NE, true, mode, NULL_RTX, NULL,
all_done_label, profile_probability::very_unlikely ());
emit_label (set_noovf);
write_complex_part (target, const0_rtx, true);
emit_label (all_done_label);
}
if (lhs)
{
if (is_ubsan)
expand_ubsan_result_store (target, res);
else
expand_arith_overflow_result_store (lhs, target, mode, res);
}
}
/* Expand UBSAN_CHECK_* internal function if it has vector operands. */
static void
expand_vector_ubsan_overflow (location_t loc, enum tree_code code, tree lhs,
tree arg0, tree arg1)
{
poly_uint64 cnt = TYPE_VECTOR_SUBPARTS (TREE_TYPE (arg0));
rtx_code_label *loop_lab = NULL;
rtx cntvar = NULL_RTX;
tree cntv = NULL_TREE;
tree eltype = TREE_TYPE (TREE_TYPE (arg0));
tree sz = TYPE_SIZE (eltype);
tree data = NULL_TREE;
tree resv = NULL_TREE;
rtx lhsr = NULL_RTX;
rtx resvr = NULL_RTX;
unsigned HOST_WIDE_INT const_cnt = 0;
bool use_loop_p = (!cnt.is_constant (&const_cnt) || const_cnt > 4);
if (lhs)
{
optab op;
lhsr = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
if (!VECTOR_MODE_P (GET_MODE (lhsr))
|| (op = optab_for_tree_code (code, TREE_TYPE (arg0),
optab_default)) == unknown_optab
|| (optab_handler (op, TYPE_MODE (TREE_TYPE (arg0)))
== CODE_FOR_nothing))
{
if (MEM_P (lhsr))
resv = make_tree (TREE_TYPE (lhs), lhsr);
else
{
resvr = assign_temp (TREE_TYPE (lhs), 1, 1);
resv = make_tree (TREE_TYPE (lhs), resvr);
}
}
}
if (use_loop_p)
{
do_pending_stack_adjust ();
loop_lab = gen_label_rtx ();
cntvar = gen_reg_rtx (TYPE_MODE (sizetype));
cntv = make_tree (sizetype, cntvar);
emit_move_insn (cntvar, const0_rtx);
emit_label (loop_lab);
}
if (TREE_CODE (arg0) != VECTOR_CST)
{
rtx arg0r = expand_normal (arg0);
arg0 = make_tree (TREE_TYPE (arg0), arg0r);
}
if (TREE_CODE (arg1) != VECTOR_CST)
{
rtx arg1r = expand_normal (arg1);
arg1 = make_tree (TREE_TYPE (arg1), arg1r);
}
for (unsigned int i = 0; i < (use_loop_p ? 1 : const_cnt); i++)
{
tree op0, op1, res = NULL_TREE;
if (use_loop_p)
{
tree atype = build_array_type_nelts (eltype, cnt);
op0 = uniform_vector_p (arg0);
if (op0 == NULL_TREE)
{
op0 = fold_build1_loc (loc, VIEW_CONVERT_EXPR, atype, arg0);
op0 = build4_loc (loc, ARRAY_REF, eltype, op0, cntv,
NULL_TREE, NULL_TREE);
}
op1 = uniform_vector_p (arg1);
if (op1 == NULL_TREE)
{
op1 = fold_build1_loc (loc, VIEW_CONVERT_EXPR, atype, arg1);
op1 = build4_loc (loc, ARRAY_REF, eltype, op1, cntv,
NULL_TREE, NULL_TREE);
}
if (resv)
{
res = fold_build1_loc (loc, VIEW_CONVERT_EXPR, atype, resv);
res = build4_loc (loc, ARRAY_REF, eltype, res, cntv,
NULL_TREE, NULL_TREE);
}
}
else
{
tree bitpos = bitsize_int (tree_to_uhwi (sz) * i);
op0 = fold_build3_loc (loc, BIT_FIELD_REF, eltype, arg0, sz, bitpos);
op1 = fold_build3_loc (loc, BIT_FIELD_REF, eltype, arg1, sz, bitpos);
if (resv)
res = fold_build3_loc (loc, BIT_FIELD_REF, eltype, resv, sz,
bitpos);
}
switch (code)
{
case PLUS_EXPR:
expand_addsub_overflow (loc, PLUS_EXPR, res, op0, op1,
false, false, false, true, &data);
break;
case MINUS_EXPR:
if (use_loop_p ? integer_zerop (arg0) : integer_zerop (op0))
expand_neg_overflow (loc, res, op1, true, &data);
else
expand_addsub_overflow (loc, MINUS_EXPR, res, op0, op1,
false, false, false, true, &data);
break;
case MULT_EXPR:
expand_mul_overflow (loc, res, op0, op1, false, false, false,
true, &data);
break;
default:
gcc_unreachable ();
}
}
if (use_loop_p)
{
struct separate_ops ops;
ops.code = PLUS_EXPR;
ops.type = TREE_TYPE (cntv);
ops.op0 = cntv;
ops.op1 = build_int_cst (TREE_TYPE (cntv), 1);
ops.op2 = NULL_TREE;
ops.location = loc;
rtx ret = expand_expr_real_2 (&ops, cntvar, TYPE_MODE (sizetype),
EXPAND_NORMAL);
if (ret != cntvar)
emit_move_insn (cntvar, ret);
rtx cntrtx = gen_int_mode (cnt, TYPE_MODE (sizetype));
do_compare_rtx_and_jump (cntvar, cntrtx, NE, false,
TYPE_MODE (sizetype), NULL_RTX, NULL, loop_lab,
profile_probability::very_likely ());
}
if (lhs && resv == NULL_TREE)
{
struct separate_ops ops;
ops.code = code;
ops.type = TREE_TYPE (arg0);
ops.op0 = arg0;
ops.op1 = arg1;
ops.op2 = NULL_TREE;
ops.location = loc;
rtx ret = expand_expr_real_2 (&ops, lhsr, TYPE_MODE (TREE_TYPE (arg0)),
EXPAND_NORMAL);
if (ret != lhsr)
emit_move_insn (lhsr, ret);
}
else if (resvr)
emit_move_insn (lhsr, resvr);
}
/* Expand UBSAN_CHECK_ADD call STMT. */
static void
expand_UBSAN_CHECK_ADD (internal_fn, gcall *stmt)
{
location_t loc = gimple_location (stmt);
tree lhs = gimple_call_lhs (stmt);
tree arg0 = gimple_call_arg (stmt, 0);
tree arg1 = gimple_call_arg (stmt, 1);
if (VECTOR_TYPE_P (TREE_TYPE (arg0)))
expand_vector_ubsan_overflow (loc, PLUS_EXPR, lhs, arg0, arg1);
else
expand_addsub_overflow (loc, PLUS_EXPR, lhs, arg0, arg1,
false, false, false, true, NULL);
}
/* Expand UBSAN_CHECK_SUB call STMT. */
static void
expand_UBSAN_CHECK_SUB (internal_fn, gcall *stmt)
{
location_t loc = gimple_location (stmt);
tree lhs = gimple_call_lhs (stmt);
tree arg0 = gimple_call_arg (stmt, 0);
tree arg1 = gimple_call_arg (stmt, 1);
if (VECTOR_TYPE_P (TREE_TYPE (arg0)))
expand_vector_ubsan_overflow (loc, MINUS_EXPR, lhs, arg0, arg1);
else if (integer_zerop (arg0))
expand_neg_overflow (loc, lhs, arg1, true, NULL);
else
expand_addsub_overflow (loc, MINUS_EXPR, lhs, arg0, arg1,
false, false, false, true, NULL);
}
/* Expand UBSAN_CHECK_MUL call STMT. */
static void
expand_UBSAN_CHECK_MUL (internal_fn, gcall *stmt)
{
location_t loc = gimple_location (stmt);
tree lhs = gimple_call_lhs (stmt);
tree arg0 = gimple_call_arg (stmt, 0);
tree arg1 = gimple_call_arg (stmt, 1);
if (VECTOR_TYPE_P (TREE_TYPE (arg0)))
expand_vector_ubsan_overflow (loc, MULT_EXPR, lhs, arg0, arg1);
else
expand_mul_overflow (loc, lhs, arg0, arg1, false, false, false, true,
NULL);
}
/* Helper function for {ADD,SUB,MUL}_OVERFLOW call stmt expansion. */
static void
expand_arith_overflow (enum tree_code code, gimple *stmt)
{
tree lhs = gimple_call_lhs (stmt);
if (lhs == NULL_TREE)
return;
tree arg0 = gimple_call_arg (stmt, 0);
tree arg1 = gimple_call_arg (stmt, 1);
tree type = TREE_TYPE (TREE_TYPE (lhs));
int uns0_p = TYPE_UNSIGNED (TREE_TYPE (arg0));
int uns1_p = TYPE_UNSIGNED (TREE_TYPE (arg1));
int unsr_p = TYPE_UNSIGNED (type);
int prec0 = TYPE_PRECISION (TREE_TYPE (arg0));
int prec1 = TYPE_PRECISION (TREE_TYPE (arg1));
int precres = TYPE_PRECISION (type);
location_t loc = gimple_location (stmt);
if (!uns0_p && get_range_pos_neg (arg0) == 1)
uns0_p = true;
if (!uns1_p && get_range_pos_neg (arg1) == 1)
uns1_p = true;
int pr = get_min_precision (arg0, uns0_p ? UNSIGNED : SIGNED);
prec0 = MIN (prec0, pr);
pr = get_min_precision (arg1, uns1_p ? UNSIGNED : SIGNED);
prec1 = MIN (prec1, pr);
/* If uns0_p && uns1_p, precop is minimum needed precision
of unsigned type to hold the exact result, otherwise
precop is minimum needed precision of signed type to
hold the exact result. */
int precop;
if (code == MULT_EXPR)
precop = prec0 + prec1 + (uns0_p != uns1_p);
else
{
if (uns0_p == uns1_p)
precop = MAX (prec0, prec1) + 1;
else if (uns0_p)
precop = MAX (prec0 + 1, prec1) + 1;
else
precop = MAX (prec0, prec1 + 1) + 1;
}
int orig_precres = precres;
do
{
if ((uns0_p && uns1_p)
? ((precop + !unsr_p) <= precres
/* u1 - u2 -> ur can overflow, no matter what precision
the result has. */
&& (code != MINUS_EXPR || !unsr_p))
: (!unsr_p && precop <= precres))
{
/* The infinity precision result will always fit into result. */
rtx target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
write_complex_part (target, const0_rtx, true);
scalar_int_mode mode = SCALAR_INT_TYPE_MODE (type);
struct separate_ops ops;
ops.code = code;
ops.type = type;
ops.op0 = fold_convert_loc (loc, type, arg0);
ops.op1 = fold_convert_loc (loc, type, arg1);
ops.op2 = NULL_TREE;
ops.location = loc;
rtx tem = expand_expr_real_2 (&ops, NULL_RTX, mode, EXPAND_NORMAL);
expand_arith_overflow_result_store (lhs, target, mode, tem);
return;
}
/* For operations with low precision, if target doesn't have them, start
with precres widening right away, otherwise do it only if the most
simple cases can't be used. */
const int min_precision = targetm.min_arithmetic_precision ();
if (orig_precres == precres && precres < min_precision)
;
else if ((uns0_p && uns1_p && unsr_p && prec0 <= precres
&& prec1 <= precres)
|| ((!uns0_p || !uns1_p) && !unsr_p
&& prec0 + uns0_p <= precres
&& prec1 + uns1_p <= precres))
{
arg0 = fold_convert_loc (loc, type, arg0);
arg1 = fold_convert_loc (loc, type, arg1);
switch (code)
{
case MINUS_EXPR:
if (integer_zerop (arg0) && !unsr_p)
{
expand_neg_overflow (loc, lhs, arg1, false, NULL);
return;
}
/* FALLTHRU */
case PLUS_EXPR:
expand_addsub_overflow (loc, code, lhs, arg0, arg1, unsr_p,
unsr_p, unsr_p, false, NULL);
return;
case MULT_EXPR:
expand_mul_overflow (loc, lhs, arg0, arg1, unsr_p,
unsr_p, unsr_p, false, NULL);
return;
default:
gcc_unreachable ();
}
}
/* For sub-word operations, retry with a wider type first. */
if (orig_precres == precres && precop <= BITS_PER_WORD)
{
int p = MAX (min_precision, precop);
scalar_int_mode m = smallest_int_mode_for_size (p);
tree optype = build_nonstandard_integer_type (GET_MODE_PRECISION (m),
uns0_p && uns1_p
&& unsr_p);
p = TYPE_PRECISION (optype);
if (p > precres)
{
precres = p;
unsr_p = TYPE_UNSIGNED (optype);
type = optype;
continue;
}
}
if (prec0 <= precres && prec1 <= precres)
{
tree types[2];
if (unsr_p)
{
types[0] = build_nonstandard_integer_type (precres, 0);
types[1] = type;
}
else
{
types[0] = type;
types[1] = build_nonstandard_integer_type (precres, 1);
}
arg0 = fold_convert_loc (loc, types[uns0_p], arg0);
arg1 = fold_convert_loc (loc, types[uns1_p], arg1);
if (code != MULT_EXPR)
expand_addsub_overflow (loc, code, lhs, arg0, arg1, unsr_p,
uns0_p, uns1_p, false, NULL);
else
expand_mul_overflow (loc, lhs, arg0, arg1, unsr_p,
uns0_p, uns1_p, false, NULL);
return;
}
/* Retry with a wider type. */
if (orig_precres == precres)
{
int p = MAX (prec0, prec1);
scalar_int_mode m = smallest_int_mode_for_size (p);
tree optype = build_nonstandard_integer_type (GET_MODE_PRECISION (m),
uns0_p && uns1_p
&& unsr_p);
p = TYPE_PRECISION (optype);
if (p > precres)
{
precres = p;
unsr_p = TYPE_UNSIGNED (optype);
type = optype;
continue;
}
}
gcc_unreachable ();
}
while (1);
}
/* Expand ADD_OVERFLOW STMT. */
static void
expand_ADD_OVERFLOW (internal_fn, gcall *stmt)
{
expand_arith_overflow (PLUS_EXPR, stmt);
}
/* Expand SUB_OVERFLOW STMT. */
static void
expand_SUB_OVERFLOW (internal_fn, gcall *stmt)
{
expand_arith_overflow (MINUS_EXPR, stmt);
}
/* Expand MUL_OVERFLOW STMT. */
static void
expand_MUL_OVERFLOW (internal_fn, gcall *stmt)
{
expand_arith_overflow (MULT_EXPR, stmt);
}
/* This should get folded in tree-vectorizer.c. */
static void
expand_LOOP_VECTORIZED (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This should get folded in tree-vectorizer.c. */
static void
expand_LOOP_DIST_ALIAS (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* Return a memory reference of type TYPE for argument INDEX of STMT.
Use argument INDEX + 1 to derive the second (TBAA) operand. */
static tree
expand_call_mem_ref (tree type, gcall *stmt, int index)
{
tree addr = gimple_call_arg (stmt, index);
tree alias_ptr_type = TREE_TYPE (gimple_call_arg (stmt, index + 1));
unsigned int align = tree_to_shwi (gimple_call_arg (stmt, index + 1));
if (TYPE_ALIGN (type) != align)
type = build_aligned_type (type, align);
tree tmp = addr;
if (TREE_CODE (tmp) == SSA_NAME)
{
gimple *def = SSA_NAME_DEF_STMT (tmp);
if (gimple_assign_single_p (def))
tmp = gimple_assign_rhs1 (def);
}
if (TREE_CODE (tmp) == ADDR_EXPR)
{
tree mem = TREE_OPERAND (tmp, 0);
if (TREE_CODE (mem) == TARGET_MEM_REF
&& types_compatible_p (TREE_TYPE (mem), type))
{
tree offset = TMR_OFFSET (mem);
if (type != TREE_TYPE (mem)
|| alias_ptr_type != TREE_TYPE (offset)
|| !integer_zerop (offset))
{
mem = copy_node (mem);
TMR_OFFSET (mem) = wide_int_to_tree (alias_ptr_type,
wi::to_poly_wide (offset));
TREE_TYPE (mem) = type;
}
return mem;
}
}
return fold_build2 (MEM_REF, type, addr, build_int_cst (alias_ptr_type, 0));
}
/* Expand MASK_LOAD{,_LANES} call STMT using optab OPTAB. */
static void
expand_mask_load_optab_fn (internal_fn, gcall *stmt, convert_optab optab)
{
class expand_operand ops[3];
tree type, lhs, rhs, maskt;
rtx mem, target, mask;
insn_code icode;
maskt = gimple_call_arg (stmt, 2);
lhs = gimple_call_lhs (stmt);
if (lhs == NULL_TREE)
return;
type = TREE_TYPE (lhs);
rhs = expand_call_mem_ref (type, stmt, 0);
if (optab == vec_mask_load_lanes_optab)
icode = get_multi_vector_move (type, optab);
else
icode = convert_optab_handler (optab, TYPE_MODE (type),
TYPE_MODE (TREE_TYPE (maskt)));
mem = expand_expr (rhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
gcc_assert (MEM_P (mem));
mask = expand_normal (maskt);
target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
create_output_operand (&ops[0], target, TYPE_MODE (type));
create_fixed_operand (&ops[1], mem);
create_input_operand (&ops[2], mask, TYPE_MODE (TREE_TYPE (maskt)));
expand_insn (icode, 3, ops);
}
#define expand_mask_load_lanes_optab_fn expand_mask_load_optab_fn
/* Expand MASK_STORE{,_LANES} call STMT using optab OPTAB. */
static void
expand_mask_store_optab_fn (internal_fn, gcall *stmt, convert_optab optab)
{
class expand_operand ops[3];
tree type, lhs, rhs, maskt;
rtx mem, reg, mask;
insn_code icode;
maskt = gimple_call_arg (stmt, 2);
rhs = gimple_call_arg (stmt, 3);
type = TREE_TYPE (rhs);
lhs = expand_call_mem_ref (type, stmt, 0);
if (optab == vec_mask_store_lanes_optab)
icode = get_multi_vector_move (type, optab);
else
icode = convert_optab_handler (optab, TYPE_MODE (type),
TYPE_MODE (TREE_TYPE (maskt)));
mem = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
gcc_assert (MEM_P (mem));
mask = expand_normal (maskt);
reg = expand_normal (rhs);
create_fixed_operand (&ops[0], mem);
create_input_operand (&ops[1], reg, TYPE_MODE (type));
create_input_operand (&ops[2], mask, TYPE_MODE (TREE_TYPE (maskt)));
expand_insn (icode, 3, ops);
}
#define expand_mask_store_lanes_optab_fn expand_mask_store_optab_fn
static void
expand_ABNORMAL_DISPATCHER (internal_fn, gcall *)
{
}
static void
expand_BUILTIN_EXPECT (internal_fn, gcall *stmt)
{
/* When guessing was done, the hints should be already stripped away. */
gcc_assert (!flag_guess_branch_prob || optimize == 0 || seen_error ());
rtx target;
tree lhs = gimple_call_lhs (stmt);
if (lhs)
target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
else
target = const0_rtx;
rtx val = expand_expr (gimple_call_arg (stmt, 0), target, VOIDmode, EXPAND_NORMAL);
if (lhs && val != target)
emit_move_insn (target, val);
}
/* IFN_VA_ARG is supposed to be expanded at pass_stdarg. So this dummy function
should never be called. */
static void
expand_VA_ARG (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* IFN_VEC_CONVERT is supposed to be expanded at pass_lower_vector. So this
dummy function should never be called. */
static void
expand_VEC_CONVERT (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* Expand the IFN_UNIQUE function according to its first argument. */
static void
expand_UNIQUE (internal_fn, gcall *stmt)
{
rtx pattern = NULL_RTX;
enum ifn_unique_kind kind
= (enum ifn_unique_kind) TREE_INT_CST_LOW (gimple_call_arg (stmt, 0));
switch (kind)
{
default:
gcc_unreachable ();
case IFN_UNIQUE_UNSPEC:
if (targetm.have_unique ())
pattern = targetm.gen_unique ();
break;
case IFN_UNIQUE_OACC_FORK:
case IFN_UNIQUE_OACC_JOIN:
if (targetm.have_oacc_fork () && targetm.have_oacc_join ())
{
tree lhs = gimple_call_lhs (stmt);
rtx target = const0_rtx;
if (lhs)
target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
rtx data_dep = expand_normal (gimple_call_arg (stmt, 1));
rtx axis = expand_normal (gimple_call_arg (stmt, 2));
if (kind == IFN_UNIQUE_OACC_FORK)
pattern = targetm.gen_oacc_fork (target, data_dep, axis);
else
pattern = targetm.gen_oacc_join (target, data_dep, axis);
}
else
gcc_unreachable ();
break;
}
if (pattern)
emit_insn (pattern);
}
/* The size of an OpenACC compute dimension. */
static void
expand_GOACC_DIM_SIZE (internal_fn, gcall *stmt)
{
tree lhs = gimple_call_lhs (stmt);
if (!lhs)
return;
rtx target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
if (targetm.have_oacc_dim_size ())
{
rtx dim = expand_expr (gimple_call_arg (stmt, 0), NULL_RTX,
VOIDmode, EXPAND_NORMAL);
emit_insn (targetm.gen_oacc_dim_size (target, dim));
}
else
emit_move_insn (target, GEN_INT (1));
}
/* The position of an OpenACC execution engine along one compute axis. */
static void
expand_GOACC_DIM_POS (internal_fn, gcall *stmt)
{
tree lhs = gimple_call_lhs (stmt);
if (!lhs)
return;
rtx target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
if (targetm.have_oacc_dim_pos ())
{
rtx dim = expand_expr (gimple_call_arg (stmt, 0), NULL_RTX,
VOIDmode, EXPAND_NORMAL);
emit_insn (targetm.gen_oacc_dim_pos (target, dim));
}
else
emit_move_insn (target, const0_rtx);
}
/* This is expanded by oacc_device_lower pass. */
static void
expand_GOACC_LOOP (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This is expanded by oacc_device_lower pass. */
static void
expand_GOACC_REDUCTION (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* This is expanded by oacc_device_lower pass. */
static void
expand_GOACC_TILE (internal_fn, gcall *)
{
gcc_unreachable ();
}
/* Set errno to EDOM. */
static void
expand_SET_EDOM (internal_fn, gcall *)
{
#ifdef TARGET_EDOM
#ifdef GEN_ERRNO_RTX
rtx errno_rtx = GEN_ERRNO_RTX;
#else
rtx errno_rtx = gen_rtx_MEM (word_mode, gen_rtx_SYMBOL_REF (Pmode, "errno"));
#endif
emit_move_insn (errno_rtx,
gen_int_mode (TARGET_EDOM, GET_MODE (errno_rtx)));
#else
gcc_unreachable ();
#endif
}
/* Expand atomic bit test and set. */
static void
expand_ATOMIC_BIT_TEST_AND_SET (internal_fn, gcall *call)
{
expand_ifn_atomic_bit_test_and (call);
}
/* Expand atomic bit test and complement. */
static void
expand_ATOMIC_BIT_TEST_AND_COMPLEMENT (internal_fn, gcall *call)
{
expand_ifn_atomic_bit_test_and (call);
}
/* Expand atomic bit test and reset. */
static void
expand_ATOMIC_BIT_TEST_AND_RESET (internal_fn, gcall *call)
{
expand_ifn_atomic_bit_test_and (call);
}
/* Expand atomic bit test and set. */
static void
expand_ATOMIC_COMPARE_EXCHANGE (internal_fn, gcall *call)
{
expand_ifn_atomic_compare_exchange (call);
}
/* Expand LAUNDER to assignment, lhs = arg0. */
static void
expand_LAUNDER (internal_fn, gcall *call)
{
tree lhs = gimple_call_lhs (call);
if (!lhs)
return;
expand_assignment (lhs, gimple_call_arg (call, 0), false);
}
/* Expand {MASK_,}SCATTER_STORE{S,U} call CALL using optab OPTAB. */
static void
expand_scatter_store_optab_fn (internal_fn, gcall *stmt, direct_optab optab)
{
internal_fn ifn = gimple_call_internal_fn (stmt);
int rhs_index = internal_fn_stored_value_index (ifn);
int mask_index = internal_fn_mask_index (ifn);
tree base = gimple_call_arg (stmt, 0);
tree offset = gimple_call_arg (stmt, 1);
tree scale = gimple_call_arg (stmt, 2);
tree rhs = gimple_call_arg (stmt, rhs_index);
rtx base_rtx = expand_normal (base);
rtx offset_rtx = expand_normal (offset);
HOST_WIDE_INT scale_int = tree_to_shwi (scale);
rtx rhs_rtx = expand_normal (rhs);
class expand_operand ops[6];
int i = 0;
create_address_operand (&ops[i++], base_rtx);
create_input_operand (&ops[i++], offset_rtx, TYPE_MODE (TREE_TYPE (offset)));
create_integer_operand (&ops[i++], TYPE_UNSIGNED (TREE_TYPE (offset)));
create_integer_operand (&ops[i++], scale_int);
create_input_operand (&ops[i++], rhs_rtx, TYPE_MODE (TREE_TYPE (rhs)));
if (mask_index >= 0)
{
tree mask = gimple_call_arg (stmt, mask_index);
rtx mask_rtx = expand_normal (mask);
create_input_operand (&ops[i++], mask_rtx, TYPE_MODE (TREE_TYPE (mask)));
}
insn_code icode = convert_optab_handler (optab, TYPE_MODE (TREE_TYPE (rhs)),
TYPE_MODE (TREE_TYPE (offset)));
expand_insn (icode, i, ops);
}
/* Expand {MASK_,}GATHER_LOAD call CALL using optab OPTAB. */
static void
expand_gather_load_optab_fn (internal_fn, gcall *stmt, direct_optab optab)
{
tree lhs = gimple_call_lhs (stmt);
tree base = gimple_call_arg (stmt, 0);
tree offset = gimple_call_arg (stmt, 1);
tree scale = gimple_call_arg (stmt, 2);
rtx lhs_rtx = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
rtx base_rtx = expand_normal (base);
rtx offset_rtx = expand_normal (offset);
HOST_WIDE_INT scale_int = tree_to_shwi (scale);
int i = 0;
class expand_operand ops[6];
create_output_operand (&ops[i++], lhs_rtx, TYPE_MODE (TREE_TYPE (lhs)));
create_address_operand (&ops[i++], base_rtx);
create_input_operand (&ops[i++], offset_rtx, TYPE_MODE (TREE_TYPE (offset)));
create_integer_operand (&ops[i++], TYPE_UNSIGNED (TREE_TYPE (offset)));
create_integer_operand (&ops[i++], scale_int);
if (optab == mask_gather_load_optab)
{
tree mask = gimple_call_arg (stmt, 4);
rtx mask_rtx = expand_normal (mask);
create_input_operand (&ops[i++], mask_rtx, TYPE_MODE (TREE_TYPE (mask)));
}
insn_code icode = convert_optab_handler (optab, TYPE_MODE (TREE_TYPE (lhs)),
TYPE_MODE (TREE_TYPE (offset)));
expand_insn (icode, i, ops);
}
/* Expand DIVMOD() using:
a) optab handler for udivmod/sdivmod if it is available.
b) If optab_handler doesn't exist, generate call to
target-specific divmod libfunc. */
static void
expand_DIVMOD (internal_fn, gcall *call_stmt)
{
tree lhs = gimple_call_lhs (call_stmt);
tree arg0 = gimple_call_arg (call_stmt, 0);
tree arg1 = gimple_call_arg (call_stmt, 1);
gcc_assert (TREE_CODE (TREE_TYPE (lhs)) == COMPLEX_TYPE);
tree type = TREE_TYPE (TREE_TYPE (lhs));
machine_mode mode = TYPE_MODE (type);
bool unsignedp = TYPE_UNSIGNED (type);
optab tab = (unsignedp) ? udivmod_optab : sdivmod_optab;
rtx op0 = expand_normal (arg0);
rtx op1 = expand_normal (arg1);
rtx target = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
rtx quotient, remainder, libfunc;
/* Check if optab_handler exists for divmod_optab for given mode. */
if (optab_handler (tab, mode) != CODE_FOR_nothing)
{
quotient = gen_reg_rtx (mode);
remainder = gen_reg_rtx (mode);
expand_twoval_binop (tab, op0, op1, quotient, remainder, unsignedp);
}
/* Generate call to divmod libfunc if it exists. */
else if ((libfunc = optab_libfunc (tab, mode)) != NULL_RTX)
targetm.expand_divmod_libfunc (libfunc, mode, op0, op1,
"ient, &remainder);
else
gcc_unreachable ();
/* Wrap the return value (quotient, remainder) within COMPLEX_EXPR. */
expand_expr (build2 (COMPLEX_EXPR, TREE_TYPE (lhs),
make_tree (TREE_TYPE (arg0), quotient),
make_tree (TREE_TYPE (arg1), remainder)),
target, VOIDmode, EXPAND_NORMAL);
}
/* Expand a NOP. */
static void
expand_NOP (internal_fn, gcall *)
{
/* Nothing. But it shouldn't really prevail. */
}
/* Expand a call to FN using the operands in STMT. FN has a single
output operand and NARGS input operands. */
static void
expand_direct_optab_fn (internal_fn fn, gcall *stmt, direct_optab optab,
unsigned int nargs)
{
expand_operand *ops = XALLOCAVEC (expand_operand, nargs + 1);
tree_pair types = direct_internal_fn_types (fn, stmt);
insn_code icode = direct_optab_handler (optab, TYPE_MODE (types.first));
gcc_assert (icode != CODE_FOR_nothing);
tree lhs = gimple_call_lhs (stmt);
rtx lhs_rtx = NULL_RTX;
if (lhs)
lhs_rtx = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
/* Do not assign directly to a promoted subreg, since there is no
guarantee that the instruction will leave the upper bits of the
register in the state required by SUBREG_PROMOTED_SIGN. */
rtx dest = lhs_rtx;
if (dest && GET_CODE (dest) == SUBREG && SUBREG_PROMOTED_VAR_P (dest))
dest = NULL_RTX;
create_output_operand (&ops[0], dest, insn_data[icode].operand[0].mode);
for (unsigned int i = 0; i < nargs; ++i)
{
tree rhs = gimple_call_arg (stmt, i);
tree rhs_type = TREE_TYPE (rhs);
rtx rhs_rtx = expand_normal (rhs);
if (INTEGRAL_TYPE_P (rhs_type))
create_convert_operand_from (&ops[i + 1], rhs_rtx,
TYPE_MODE (rhs_type),
TYPE_UNSIGNED (rhs_type));
else
create_input_operand (&ops[i + 1], rhs_rtx, TYPE_MODE (rhs_type));
}
expand_insn (icode, nargs + 1, ops);
if (lhs_rtx && !rtx_equal_p (lhs_rtx, ops[0].value))
{
/* If the return value has an integral type, convert the instruction
result to that type. This is useful for things that return an
int regardless of the size of the input. If the instruction result
is smaller than required, assume that it is signed.
If the return value has a nonintegral type, its mode must match
the instruction result. */
if (GET_CODE (lhs_rtx) == SUBREG && SUBREG_PROMOTED_VAR_P (lhs_rtx))
{
/* If this is a scalar in a register that is stored in a wider
mode than the declared mode, compute the result into its
declared mode and then convert to the wider mode. */
gcc_checking_assert (INTEGRAL_TYPE_P (TREE_TYPE (lhs)));
rtx tmp = convert_to_mode (GET_MODE (lhs_rtx), ops[0].value, 0);
convert_move (SUBREG_REG (lhs_rtx), tmp,
SUBREG_PROMOTED_SIGN (lhs_rtx));
}
else if (GET_MODE (lhs_rtx) == GET_MODE (ops[0].value))
emit_move_insn (lhs_rtx, ops[0].value);
else
{
gcc_checking_assert (INTEGRAL_TYPE_P (TREE_TYPE (lhs)));
convert_move (lhs_rtx, ops[0].value, 0);
}
}
}
/* Expand WHILE_ULT call STMT using optab OPTAB. */
static void
expand_while_optab_fn (internal_fn, gcall *stmt, convert_optab optab)
{
expand_operand ops[3];
tree rhs_type[2];
tree lhs = gimple_call_lhs (stmt);
tree lhs_type = TREE_TYPE (lhs);
rtx lhs_rtx = expand_expr (lhs, NULL_RTX, VOIDmode, EXPAND_WRITE);
create_output_operand (&ops[0], lhs_rtx, TYPE_MODE (lhs_type));
for (unsigned int i = 0; i < 2; ++i)
{
tree rhs = gimple_call_arg (stmt, i);
rhs_type[i] = TREE_TYPE (rhs);
rtx rhs_rtx = expand_normal (rhs);
create_input_operand (&ops[i + 1], rhs_rtx, TYPE_MODE (rhs_type[i]));
}
insn_code icode = convert_optab_handler (optab, TYPE_MODE (rhs_type[0]),
TYPE_MODE (lhs_type));
expand_insn (icode, 3, ops);
if (!rtx_equal_p (lhs_rtx, ops[0].value))
emit_move_insn (lhs_rtx, ops[0].value);
}
/* Expanders for optabs that can use expand_direct_optab_fn. */
#define expand_unary_optab_fn(FN, STMT, OPTAB) \
expand_direct_optab_fn (FN, STMT, OPTAB, 1)
#define expand_binary_optab_fn(FN, STMT, OPTAB) \
expand_direct_optab_fn (FN, STMT, OPTAB, 2)
#define expand_ternary_optab_fn(FN, STMT, OPTAB) \
expand_direct_optab_fn (FN, STMT, OPTAB, 3)
#define expand_cond_unary_optab_fn(FN, STMT, OPTAB) \
expand_direct_optab_fn (FN, STMT, OPTAB, 3)
#define expand_cond_binary_optab_fn(FN, STMT, OPTAB) \
expand_direct_optab_fn (FN, STMT, OPTAB, 4)
#define expand_cond_ternary_optab_fn(FN, STMT, OPTAB) \
expand_direct_optab_fn (FN, STMT, OPTAB, 5)
#define expand_fold_extract_optab_fn(FN, STMT, OPTAB) \
expand_direct_optab_fn (FN, STMT, OPTAB, 3)
#define expand_fold_left_optab_fn(FN, STMT, OPTAB) \
expand_direct_optab_fn (FN, STMT, OPTAB, 2)
#define expand_mask_fold_left_optab_fn(FN, STMT, OPTAB) \
expand_direct_optab_fn (FN, STMT, OPTAB, 3)
#define expand_check_ptrs_optab_fn(FN, STMT, OPTAB) \
expand_direct_optab_fn (FN, STMT, OPTAB, 4)
/* RETURN_TYPE and ARGS are a return type and argument list that are
in principle compatible with FN (which satisfies direct_internal_fn_p).
Return the types that should be used to determine whether the
target supports FN. */
tree_pair
direct_internal_fn_types (internal_fn fn, tree return_type, tree *args)
{
const direct_internal_fn_info &info = direct_internal_fn (fn);
tree type0 = (info.type0 < 0 ? return_type : TREE_TYPE (args[info.type0]));
tree type1 = (info.type1 < 0 ? return_type : TREE_TYPE (args[info.type1]));
return tree_pair (type0, type1);
}
/* CALL is a call whose return type and arguments are in principle
compatible with FN (which satisfies direct_internal_fn_p). Return the
types that should be used to determine whether the target supports FN. */
tree_pair
direct_internal_fn_types (internal_fn fn, gcall *call)
{
const direct_internal_fn_info &info = direct_internal_fn (fn);
tree op0 = (info.type0 < 0
? gimple_call_lhs (call)
: gimple_call_arg (call, info.type0));
tree op1 = (info.type1 < 0
? gimple_call_lhs (call)
: gimple_call_arg (call, info.type1));
return tree_pair (TREE_TYPE (op0), TREE_TYPE (op1));
}
/* Return true if OPTAB is supported for TYPES (whose modes should be
the same) when the optimization type is OPT_TYPE. Used for simple
direct optabs. */
static bool
direct_optab_supported_p (direct_optab optab, tree_pair types,
optimization_type opt_type)
{
machine_mode mode = TYPE_MODE (types.first);
gcc_checking_assert (mode == TYPE_MODE (types.second));
return direct_optab_handler (optab, mode, opt_type) != CODE_FOR_nothing;
}
/* Return true if OPTAB is supported for TYPES, where the first type
is the destination and the second type is the source. Used for
convert optabs. */
static bool
convert_optab_supported_p (convert_optab optab, tree_pair types,
optimization_type opt_type)
{
return (convert_optab_handler (optab, TYPE_MODE (types.first),
TYPE_MODE (types.second), opt_type)
!= CODE_FOR_nothing);
}
/* Return true if load/store lanes optab OPTAB is supported for
array type TYPES.first when the optimization type is OPT_TYPE. */
static bool
multi_vector_optab_supported_p (convert_optab optab, tree_pair types,
optimization_type opt_type)
{
gcc_assert (TREE_CODE (types.first) == ARRAY_TYPE);
machine_mode imode = TYPE_MODE (types.first);
machine_mode vmode = TYPE_MODE (TREE_TYPE (types.first));
return (convert_optab_handler (optab, imode, vmode, opt_type)
!= CODE_FOR_nothing);
}
#define direct_unary_optab_supported_p direct_optab_supported_p
#define direct_binary_optab_supported_p direct_optab_supported_p
#define direct_ternary_optab_supported_p direct_optab_supported_p
#define direct_cond_unary_optab_supported_p direct_optab_supported_p
#define direct_cond_binary_optab_supported_p direct_optab_supported_p
#define direct_cond_ternary_optab_supported_p direct_optab_supported_p
#define direct_mask_load_optab_supported_p direct_optab_supported_p
#define direct_load_lanes_optab_supported_p multi_vector_optab_supported_p
#define direct_mask_load_lanes_optab_supported_p multi_vector_optab_supported_p
#define direct_gather_load_optab_supported_p convert_optab_supported_p
#define direct_mask_store_optab_supported_p direct_optab_supported_p
#define direct_store_lanes_optab_supported_p multi_vector_optab_supported_p
#define direct_mask_store_lanes_optab_supported_p multi_vector_optab_supported_p
#define direct_scatter_store_optab_supported_p convert_optab_supported_p
#define direct_while_optab_supported_p convert_optab_supported_p
#define direct_fold_extract_optab_supported_p direct_optab_supported_p
#define direct_fold_left_optab_supported_p direct_optab_supported_p
#define direct_mask_fold_left_optab_supported_p direct_optab_supported_p
#define direct_check_ptrs_optab_supported_p direct_optab_supported_p
/* Return the optab used by internal function FN. */
static optab
direct_internal_fn_optab (internal_fn fn, tree_pair types)
{
switch (fn)
{
#define DEF_INTERNAL_FN(CODE, FLAGS, FNSPEC) \
case IFN_##CODE: break;
#define DEF_INTERNAL_OPTAB_FN(CODE, FLAGS, OPTAB, TYPE) \
case IFN_##CODE: return OPTAB##_optab;
#define DEF_INTERNAL_SIGNED_OPTAB_FN(CODE, FLAGS, SELECTOR, SIGNED_OPTAB, \
UNSIGNED_OPTAB, TYPE) \
case IFN_##CODE: return (TYPE_UNSIGNED (types.SELECTOR) \
? UNSIGNED_OPTAB ## _optab \
: SIGNED_OPTAB ## _optab);
#include "internal-fn.def"
case IFN_LAST:
break;
}
gcc_unreachable ();
}
/* Return the optab used by internal function FN. */
static optab
direct_internal_fn_optab (internal_fn fn)
{
switch (fn)
{
#define DEF_INTERNAL_FN(CODE, FLAGS, FNSPEC) \
case IFN_##CODE: break;
#define DEF_INTERNAL_OPTAB_FN(CODE, FLAGS, OPTAB, TYPE) \
case IFN_##CODE: return OPTAB##_optab;
#include "internal-fn.def"
case IFN_LAST:
break;
}
gcc_unreachable ();
}
/* Return true if FN is supported for the types in TYPES when the
optimization type is OPT_TYPE. The types are those associated with
the "type0" and "type1" fields of FN's direct_internal_fn_info
structure. */
bool
direct_internal_fn_supported_p (internal_fn fn, tree_pair types,
optimization_type opt_type)
{
switch (fn)
{
#define DEF_INTERNAL_FN(CODE, FLAGS, FNSPEC) \
case IFN_##CODE: break;
#define DEF_INTERNAL_OPTAB_FN(CODE, FLAGS, OPTAB, TYPE) \
case IFN_##CODE: \
return direct_##TYPE##_optab_supported_p (OPTAB##_optab, types, \
opt_type);
#define DEF_INTERNAL_SIGNED_OPTAB_FN(CODE, FLAGS, SELECTOR, SIGNED_OPTAB, \
UNSIGNED_OPTAB, TYPE) \
case IFN_##CODE: \
{ \
optab which_optab = (TYPE_UNSIGNED (types.SELECTOR) \
? UNSIGNED_OPTAB ## _optab \
: SIGNED_OPTAB ## _optab); \
return direct_##TYPE##_optab_supported_p (which_optab, types, \
opt_type); \
}
#include "internal-fn.def"
case IFN_LAST:
break;
}
gcc_unreachable ();
}
/* Return true if FN is supported for type TYPE when the optimization
type is OPT_TYPE. The caller knows that the "type0" and "type1"
fields of FN's direct_internal_fn_info structure are the same. */
bool
direct_internal_fn_supported_p (internal_fn fn, tree type,
optimization_type opt_type)
{
const direct_internal_fn_info &info = direct_internal_fn (fn);
gcc_checking_assert (info.type0 == info.type1);
return direct_internal_fn_supported_p (fn, tree_pair (type, type), opt_type);
}
/* Return true if the STMT is supported when the optimization type is OPT_TYPE,
given that STMT is a call to a direct internal function. */
bool
direct_internal_fn_supported_p (gcall *stmt, optimization_type opt_type)
{
internal_fn fn = gimple_call_internal_fn (stmt);
tree_pair types = direct_internal_fn_types (fn, stmt);
return direct_internal_fn_supported_p (fn, types, opt_type);
}
/* If FN is commutative in two consecutive arguments, return the
index of the first, otherwise return -1. */
int
first_commutative_argument (internal_fn fn)
{
switch (fn)
{
case IFN_FMA:
case IFN_FMS:
case IFN_FNMA:
case IFN_FNMS:
case IFN_AVG_FLOOR:
case IFN_AVG_CEIL:
case IFN_MULHS:
case IFN_MULHRS:
case IFN_FMIN:
case IFN_FMAX:
return 0;
case IFN_COND_ADD:
case IFN_COND_MUL:
case IFN_COND_MIN:
case IFN_COND_MAX:
case IFN_COND_AND:
case IFN_COND_IOR:
case IFN_COND_XOR:
case IFN_COND_FMA:
case IFN_COND_FMS:
case IFN_COND_FNMA:
case IFN_COND_FNMS:
return 1;
default:
return -1;
}
}
/* Return true if IFN_SET_EDOM is supported. */
bool
set_edom_supported_p (void)
{
#ifdef TARGET_EDOM
return true;
#else
return false;
#endif
}
#define DEF_INTERNAL_OPTAB_FN(CODE, FLAGS, OPTAB, TYPE) \
static void \
expand_##CODE (internal_fn fn, gcall *stmt) \
{ \
expand_##TYPE##_optab_fn (fn, stmt, OPTAB##_optab); \
}
#define DEF_INTERNAL_SIGNED_OPTAB_FN(CODE, FLAGS, SELECTOR, SIGNED_OPTAB, \
UNSIGNED_OPTAB, TYPE) \
static void \
expand_##CODE (internal_fn fn, gcall *stmt) \
{ \
tree_pair types = direct_internal_fn_types (fn, stmt); \
optab which_optab = direct_internal_fn_optab (fn, types); \
expand_##TYPE##_optab_fn (fn, stmt, which_optab); \
}
#include "internal-fn.def"
/* Routines to expand each internal function, indexed by function number.
Each routine has the prototype:
expand_<NAME> (gcall *stmt)
where STMT is the statement that performs the call. */
static void (*const internal_fn_expanders[]) (internal_fn, gcall *) = {
#define DEF_INTERNAL_FN(CODE, FLAGS, FNSPEC) expand_##CODE,
#include "internal-fn.def"
0
};
/* Invoke T(CODE, IFN) for each conditional function IFN that maps to a
tree code CODE. */
#define FOR_EACH_CODE_MAPPING(T) \
T (PLUS_EXPR, IFN_COND_ADD) \
T (MINUS_EXPR, IFN_COND_SUB) \
T (MULT_EXPR, IFN_COND_MUL) \
T (TRUNC_DIV_EXPR, IFN_COND_DIV) \
T (TRUNC_MOD_EXPR, IFN_COND_MOD) \
T (RDIV_EXPR, IFN_COND_RDIV) \
T (MIN_EXPR, IFN_COND_MIN) \
T (MAX_EXPR, IFN_COND_MAX) \
T (BIT_AND_EXPR, IFN_COND_AND) \
T (BIT_IOR_EXPR, IFN_COND_IOR) \
T (BIT_XOR_EXPR, IFN_COND_XOR) \
T (LSHIFT_EXPR, IFN_COND_SHL) \
T (RSHIFT_EXPR, IFN_COND_SHR)
/* Return a function that only performs CODE when a certain condition is met
and that uses a given fallback value otherwise. For example, if CODE is
a binary operation associated with conditional function FN:
LHS = FN (COND, A, B, ELSE)
is equivalent to the C expression:
LHS = COND ? A CODE B : ELSE;
operating elementwise if the operands are vectors.
Return IFN_LAST if no such function exists. */
internal_fn
get_conditional_internal_fn (tree_code code)
{
switch (code)
{
#define CASE(CODE, IFN) case CODE: return IFN;
FOR_EACH_CODE_MAPPING(CASE)
#undef CASE
default:
return IFN_LAST;
}
}
/* If IFN implements the conditional form of a tree code, return that
tree code, otherwise return ERROR_MARK. */
tree_code
conditional_internal_fn_code (internal_fn ifn)
{
switch (ifn)
{
#define CASE(CODE, IFN) case IFN: return CODE;
FOR_EACH_CODE_MAPPING(CASE)
#undef CASE
default:
return ERROR_MARK;
}
}
/* Invoke T(IFN) for each internal function IFN that also has an
IFN_COND_* form. */
#define FOR_EACH_COND_FN_PAIR(T) \
T (FMA) \
T (FMS) \
T (FNMA) \
T (FNMS)
/* Return a function that only performs internal function FN when a
certain condition is met and that uses a given fallback value otherwise.
In other words, the returned function FN' is such that:
LHS = FN' (COND, A1, ... An, ELSE)
is equivalent to the C expression:
LHS = COND ? FN (A1, ..., An) : ELSE;
operating elementwise if the operands are vectors.
Return IFN_LAST if no such function exists. */
internal_fn
get_conditional_internal_fn (internal_fn fn)
{
switch (fn)
{
#define CASE(NAME) case IFN_##NAME: return IFN_COND_##NAME;
FOR_EACH_COND_FN_PAIR(CASE)
#undef CASE
default:
return IFN_LAST;
}
}
/* If IFN implements the conditional form of an unconditional internal
function, return that unconditional function, otherwise return IFN_LAST. */
internal_fn
get_unconditional_internal_fn (internal_fn ifn)
{
switch (ifn)
{
#define CASE(NAME) case IFN_COND_##NAME: return IFN_##NAME;
FOR_EACH_COND_FN_PAIR(CASE)
#undef CASE
default:
return IFN_LAST;
}
}
/* Return true if STMT can be interpreted as a conditional tree code
operation of the form:
LHS = COND ? OP (RHS1, ...) : ELSE;
operating elementwise if the operands are vectors. This includes
the case of an all-true COND, so that the operation always happens.
When returning true, set:
- *COND_OUT to the condition COND, or to NULL_TREE if the condition
is known to be all-true
- *CODE_OUT to the tree code
- OPS[I] to operand I of *CODE_OUT
- *ELSE_OUT to the fallback value ELSE, or to NULL_TREE if the
condition is known to be all true. */
bool
can_interpret_as_conditional_op_p (gimple *stmt, tree *cond_out,
tree_code *code_out,
tree (&ops)[3], tree *else_out)
{
if (gassign *assign = dyn_cast <gassign *> (stmt))
{
*cond_out = NULL_TREE;
*code_out = gimple_assign_rhs_code (assign);
ops[0] = gimple_assign_rhs1 (assign);
ops[1] = gimple_assign_rhs2 (assign);
ops[2] = gimple_assign_rhs3 (assign);
*else_out = NULL_TREE;
return true;
}
if (gcall *call = dyn_cast <gcall *> (stmt))
if (gimple_call_internal_p (call))
{
internal_fn ifn = gimple_call_internal_fn (call);
tree_code code = conditional_internal_fn_code (ifn);
if (code != ERROR_MARK)
{
*cond_out = gimple_call_arg (call, 0);
*code_out = code;
unsigned int nops = gimple_call_num_args (call) - 2;
for (unsigned int i = 0; i < 3; ++i)
ops[i] = i < nops ? gimple_call_arg (call, i + 1) : NULL_TREE;
*else_out = gimple_call_arg (call, nops + 1);
if (integer_truep (*cond_out))
{
*cond_out = NULL_TREE;
*else_out = NULL_TREE;
}
return true;
}
}
return false;
}
/* Return true if IFN is some form of load from memory. */
bool
internal_load_fn_p (internal_fn fn)
{
switch (fn)
{
case IFN_MASK_LOAD:
case IFN_LOAD_LANES:
case IFN_MASK_LOAD_LANES:
case IFN_GATHER_LOAD:
case IFN_MASK_GATHER_LOAD:
return true;
default:
return false;
}
}
/* Return true if IFN is some form of store to memory. */
bool
internal_store_fn_p (internal_fn fn)
{
switch (fn)
{
case IFN_MASK_STORE:
case IFN_STORE_LANES:
case IFN_MASK_STORE_LANES:
case IFN_SCATTER_STORE:
case IFN_MASK_SCATTER_STORE:
return true;
default:
return false;
}
}
/* Return true if IFN is some form of gather load or scatter store. */
bool
internal_gather_scatter_fn_p (internal_fn fn)
{
switch (fn)
{
case IFN_GATHER_LOAD:
case IFN_MASK_GATHER_LOAD:
case IFN_SCATTER_STORE:
case IFN_MASK_SCATTER_STORE:
return true;
default:
return false;
}
}
/* If FN takes a vector mask argument, return the index of that argument,
otherwise return -1. */
int
internal_fn_mask_index (internal_fn fn)
{
switch (fn)
{
case IFN_MASK_LOAD:
case IFN_MASK_LOAD_LANES:
case IFN_MASK_STORE:
case IFN_MASK_STORE_LANES:
return 2;
case IFN_MASK_GATHER_LOAD:
case IFN_MASK_SCATTER_STORE:
return 4;
default:
return (conditional_internal_fn_code (fn) != ERROR_MARK
|| get_unconditional_internal_fn (fn) != IFN_LAST ? 0 : -1);
}
}
/* If FN takes a value that should be stored to memory, return the index
of that argument, otherwise return -1. */
int
internal_fn_stored_value_index (internal_fn fn)
{
switch (fn)
{
case IFN_MASK_STORE:
case IFN_SCATTER_STORE:
case IFN_MASK_SCATTER_STORE:
return 3;
default:
return -1;
}
}
/* Return true if the target supports gather load or scatter store function
IFN. For loads, VECTOR_TYPE is the vector type of the load result,
while for stores it is the vector type of the stored data argument.
MEMORY_ELEMENT_TYPE is the type of the memory elements being loaded
or stored. OFFSET_VECTOR_TYPE is the vector type that holds the
offset from the shared base address of each loaded or stored element.
SCALE is the amount by which these offsets should be multiplied
*after* they have been extended to address width. */
bool
internal_gather_scatter_fn_supported_p (internal_fn ifn, tree vector_type,
tree memory_element_type,
tree offset_vector_type, int scale)
{
if (!tree_int_cst_equal (TYPE_SIZE (TREE_TYPE (vector_type)),
TYPE_SIZE (memory_element_type)))
return false;
if (maybe_ne (TYPE_VECTOR_SUBPARTS (vector_type),
TYPE_VECTOR_SUBPARTS (offset_vector_type)))
return false;
optab optab = direct_internal_fn_optab (ifn);
insn_code icode = convert_optab_handler (optab, TYPE_MODE (vector_type),
TYPE_MODE (offset_vector_type));
int output_ops = internal_load_fn_p (ifn) ? 1 : 0;
bool unsigned_p = TYPE_UNSIGNED (TREE_TYPE (offset_vector_type));
return (icode != CODE_FOR_nothing
&& insn_operand_matches (icode, 2 + output_ops, GEN_INT (unsigned_p))
&& insn_operand_matches (icode, 3 + output_ops, GEN_INT (scale)));
}
/* Return true if the target supports IFN_CHECK_{RAW,WAR}_PTRS function IFN
for pointers of type TYPE when the accesses have LENGTH bytes and their
common byte alignment is ALIGN. */
bool
internal_check_ptrs_fn_supported_p (internal_fn ifn, tree type,
poly_uint64 length, unsigned int align)
{
machine_mode mode = TYPE_MODE (type);
optab optab = direct_internal_fn_optab (ifn);
insn_code icode = direct_optab_handler (optab, mode);
if (icode == CODE_FOR_nothing)
return false;
rtx length_rtx = immed_wide_int_const (length, mode);
return (insn_operand_matches (icode, 3, length_rtx)
&& insn_operand_matches (icode, 4, GEN_INT (align)));
}
/* Expand STMT as though it were a call to internal function FN. */
void
expand_internal_call (internal_fn fn, gcall *stmt)
{
internal_fn_expanders[fn] (fn, stmt);
}
/* Expand STMT, which is a call to internal function FN. */
void
expand_internal_call (gcall *stmt)
{
expand_internal_call (gimple_call_internal_fn (stmt), stmt);
}
/* If TYPE is a vector type, return true if IFN is a direct internal
function that is supported for that type. If TYPE is a scalar type,
return true if IFN is a direct internal function that is supported for
the target's preferred vector version of TYPE. */
bool
vectorized_internal_fn_supported_p (internal_fn ifn, tree type)
{
scalar_mode smode;
if (!VECTOR_TYPE_P (type) && is_a <scalar_mode> (TYPE_MODE (type), &smode))
{
machine_mode vmode = targetm.vectorize.preferred_simd_mode (smode);
if (VECTOR_MODE_P (vmode))
type = build_vector_type_for_mode (type, vmode);
}
return (VECTOR_MODE_P (TYPE_MODE (type))
&& direct_internal_fn_supported_p (ifn, type, OPTIMIZE_FOR_SPEED));
}
void
expand_PHI (internal_fn, gcall *)
{
gcc_unreachable ();
}
|