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author | Ian Lance Taylor <iant@golang.org> | 2023-06-21 11:04:04 -0700 |
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committer | Ian Lance Taylor <iant@golang.org> | 2023-06-21 11:04:04 -0700 |
commit | 97e31a0a2a2d2273687fcdb4e5416aab1a2186e1 (patch) | |
tree | d5c1cae4de436a0fe54a5f0a2a197d309f3d654c /gcc/config/sh | |
parent | 6612f4f8cb9b0d5af18ec69ad04e56debc3e6ced (diff) | |
parent | 577223aebc7acdd31e62b33c1682fe54a622ae27 (diff) | |
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Merge from trunk revision 577223aebc7acdd31e62b33c1682fe54a622ae27.
Diffstat (limited to 'gcc/config/sh')
-rw-r--r-- | gcc/config/sh/divtab.cc | 203 | ||||
-rw-r--r-- | gcc/config/sh/sh.cc | 12 |
2 files changed, 6 insertions, 209 deletions
diff --git a/gcc/config/sh/divtab.cc b/gcc/config/sh/divtab.cc deleted file mode 100644 index a69dd54..0000000 --- a/gcc/config/sh/divtab.cc +++ /dev/null @@ -1,203 +0,0 @@ -/* Copyright (C) 2003-2023 Free Software Foundation, Inc. - -This file 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. - -This file 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. - -Under Section 7 of GPL version 3, you are granted additional -permissions described in the GCC Runtime Library Exception, version -3.1, as published by the Free Software Foundation. - -You should have received a copy of the GNU General Public License and -a copy of the GCC Runtime Library Exception along with this program; -see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -<http://www.gnu.org/licenses/>. */ - - -/* Calculate division table for SH5Media integer division - Contributed by Joern Rennecke - joern.rennecke@superh.com */ - -#include <stdio.h> -#include <math.h> - -#define BITS 5 -#define N_ENTRIES (1 << BITS) -#define CUTOFF_BITS 20 - -#define BIAS (-330) - -double max_defect = 0.; -double max_defect_x; - -double min_defect = 1e9; -double min_defect_x; - -double max_defect2 = 0.; -double max_defect2_x; - -double min_defect2 = 0.; -double min_defect2_x; - -double min_defect3 = 01e9; -double min_defect3_x; -int min_defect3_val; - -double max_defect3 = 0.; -double max_defect3_x; -int max_defect3_val; - -static double -note_defect3 (int val, double d2, double y2d, double x) -{ - int cutoff_val = val >> CUTOFF_BITS; - double cutoff; - double defect; - - if (val < 0) - cutoff_val++; - cutoff = (cutoff_val * (1<<CUTOFF_BITS) - val) * y2d; - defect = cutoff + val * d2; - if (val < 0) - defect = - defect; - if (defect > max_defect3) - { - max_defect3 = defect; - max_defect3_x = x; - max_defect3_val = val; - } - if (defect < min_defect3) - { - min_defect3 = defect; - min_defect3_x = x; - min_defect3_val = val; - } -} - -/* This function assumes 32-bit integers. */ -static double -calc_defect (double x, int constant, int factor) -{ - double y0 = (constant - (int) floor ((x * factor * 64.))) / 16384.; - double y1 = 2 * y0 -y0 * y0 * (x + BIAS / (1.*(1LL<<30))); - double y2d0, y2d; - int y2d1; - double d, d2; - - y1 = floor (y1 * (1024 * 1024 * 1024)) / (1024 * 1024 * 1024); - d = y1 - 1 / x; - if (d > max_defect) - { - max_defect = d; - max_defect_x = x; - } - if (d < min_defect) - { - min_defect = d; - min_defect_x = x; - } - y2d0 = floor (y1 * x * (1LL << 60-16)); - y2d1 = (int) (long long) y2d0; - y2d = - floor ((y1 - y0 / (1<<30-14)) * y2d1) / (1LL<<44); - d2 = y1 + y2d - 1/x; - if (d2 > max_defect2) - { - max_defect2 = d2; - max_defect2_x = x; - } - if (d2 < min_defect2) - { - min_defect2 = d2; - min_defect2_x = x; - } - /* zero times anything is trivially zero. */ - note_defect3 ((1 << CUTOFF_BITS) - 1, d2, y2d, x); - note_defect3 (1 << CUTOFF_BITS, d2, y2d, x); - note_defect3 ((1U << 31) - (1 << CUTOFF_BITS), d2, y2d, x); - note_defect3 ((1U << 31) - 1, d2, y2d, x); - note_defect3 (-1, d2, y2d, x); - note_defect3 (-(1 << CUTOFF_BITS), d2, y2d, x); - note_defect3 ((1U << 31) - (1 << CUTOFF_BITS) + 1, d2, y2d, x); - note_defect3 (-(1U << 31), d2, y2d, x); - return d; -} - -int -main () -{ - int i; - unsigned char factors[N_ENTRIES]; - short constants[N_ENTRIES]; - int steps = N_ENTRIES / 2; - double step = 1. / steps; - double eps30 = 1. / (1024 * 1024 * 1024); - - for (i = 0; i < N_ENTRIES; i++) - { - double x_low = (i < steps ? 1. : -3.) + i * step; - double x_high = x_low + step - eps30; - double x_med; - int factor, constant; - double low_defect, med_defect, high_defect, max_defect; - - factor = (1./x_low- 1./x_high) / step * 256. + 0.5; - if (factor == 256) - factor = 255; - factors[i] = factor; - /* Use minimum of error function for x_med. */ - x_med = sqrt (256./factor); - if (x_low < 0) - x_med = - x_med; - low_defect = 1. / x_low + x_low * factor / 256.; - high_defect = 1. / x_high + x_high * factor / 256.; - med_defect = 1. / x_med + x_med * factor / 256.; - max_defect - = ((low_defect > high_defect) ^ (x_med < 0)) ? low_defect : high_defect; - constant = (med_defect + max_defect) * 0.5 * 16384. + 0.5; - if (constant < -32768 || constant > 32767) - abort (); - constants[i] = constant; - calc_defect (x_low, constant, factor); - calc_defect (x_med, constant, factor); - calc_defect (x_high, constant, factor); - } - printf ("/* This table has been generated by divtab.cc .\n"); - printf ("Defects for bias %d:\n", BIAS); - printf (" Max defect: %e at %e\n", max_defect, max_defect_x); - printf (" Min defect: %e at %e\n", min_defect, min_defect_x); - printf (" Max 2nd step defect: %e at %e\n", max_defect2, max_defect2_x); - printf (" Min 2nd step defect: %e at %e\n", min_defect2, min_defect2_x); - printf (" Max div defect: %e at %d:%e\n", max_defect3, max_defect3_val, - max_defect3_x); - printf (" Min div defect: %e at %d:%e\n", min_defect3, min_defect3_val, - min_defect3_x); - printf (" Defect at 1: %e\n", - calc_defect (1., constants[0], factors[0])); - printf (" Defect at -2: %e */\n", - calc_defect (-2., constants[steps], factors[steps])); - printf ("\t.section\t.rodata\n"); - printf ("\t.balign 2\n"); - printf ("/* negative division constants */\n"); - for (i = steps; i < 2 * steps; i++) - printf ("\t.word\t%d\n", constants[i]); - printf ("/* negative division factors */\n"); - for (i = steps; i < 2*steps; i++) - printf ("\t.byte\t%d\n", factors[i]); - printf ("\t.skip %d\n", steps); - printf ("\t.global GLOBAL(div_table):\n"); - printf ("GLOBAL(div_table):\n"); - printf ("\t.skip %d\n", steps); - printf ("/* positive division factors */\n"); - for (i = 0; i < steps; i++) - printf ("\t.byte\t%d\n", factors[i]); - printf ("/* positive division constants */\n"); - for (i = 0; i < steps; i++) - printf ("\t.word\t%d\n", constants[i]); - exit (0); -} diff --git a/gcc/config/sh/sh.cc b/gcc/config/sh/sh.cc index cf6188b..938f7aa 100644 --- a/gcc/config/sh/sh.cc +++ b/gcc/config/sh/sh.cc @@ -7697,7 +7697,7 @@ sh_gimplify_va_arg_expr (tree valist, tree type, gimple_seq *pre_p, eff_type = type; while (TREE_CODE (eff_type) == RECORD_TYPE && (member = find_sole_member (eff_type)) - && (TREE_CODE (TREE_TYPE (member)) == REAL_TYPE + && (SCALAR_FLOAT_TYPE_P (TREE_TYPE (member)) || TREE_CODE (TREE_TYPE (member)) == COMPLEX_TYPE || TREE_CODE (TREE_TYPE (member)) == RECORD_TYPE)) { @@ -7718,14 +7718,14 @@ sh_gimplify_va_arg_expr (tree valist, tree type, gimple_seq *pre_p, bool pass_as_float; if (TARGET_FPU_DOUBLE) { - pass_as_float = ((TREE_CODE (eff_type) == REAL_TYPE && size <= 8) + pass_as_float = ((SCALAR_FLOAT_TYPE_P (eff_type) && size <= 8) || (TREE_CODE (eff_type) == COMPLEX_TYPE - && TREE_CODE (TREE_TYPE (eff_type)) == REAL_TYPE + && SCALAR_FLOAT_TYPE_P (TREE_TYPE (eff_type)) && size <= 16)); } else { - pass_as_float = (TREE_CODE (eff_type) == REAL_TYPE && size == 4); + pass_as_float = (SCALAR_FLOAT_TYPE_P (eff_type) && size == 4); } addr = create_tmp_var (pptr_type_node); @@ -7738,7 +7738,7 @@ sh_gimplify_va_arg_expr (tree valist, tree type, gimple_seq *pre_p, { tree next_fp_tmp = create_tmp_var (TREE_TYPE (f_next_fp)); tree cmp; - bool is_double = size == 8 && TREE_CODE (eff_type) == REAL_TYPE; + bool is_double = size == 8 && SCALAR_FLOAT_TYPE_P (eff_type); tmp = build1 (ADDR_EXPR, pptr_type_node, unshare_expr (next_fp)); gimplify_assign (unshare_expr (addr), tmp, pre_p); @@ -8139,7 +8139,7 @@ sh_function_value (const_tree valtype, && (TREE_CODE (valtype) == INTEGER_TYPE || TREE_CODE (valtype) == ENUMERAL_TYPE || TREE_CODE (valtype) == BOOLEAN_TYPE - || TREE_CODE (valtype) == REAL_TYPE + || SCALAR_FLOAT_TYPE_P (valtype) || TREE_CODE (valtype) == OFFSET_TYPE)) && sh_promote_prototypes (fn_decl_or_type) ? SImode : TYPE_MODE (valtype)), |