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| author | Uros Bizjak <ubizjak@gmail.com> | 2023-12-21 13:50:26 +0100 |
|---|---|---|
| committer | Uros Bizjak <ubizjak@gmail.com> | 2023-12-21 15:58:03 +0100 |
| commit | 2766b83759a02572b7b303aae3d4b54a351f8f96 (patch) | |
| tree | eaba45a560e84bb4cd964454598bb38187e59124 /gcc | |
| parent | be977db17c91ad6627dee70a1904a95d229aa1be (diff) | |
| download | gcc-2766b83759a02572b7b303aae3d4b54a351f8f96.zip gcc-2766b83759a02572b7b303aae3d4b54a351f8f96.tar.gz gcc-2766b83759a02572b7b303aae3d4b54a351f8f96.tar.bz2 | |
i386: Fix shifts with high register input operand [PR113044]
The move to the output operand should use high register input operand.
PR target/113044
gcc/ChangeLog:
* config/i386/i386.md (*ashlqi_ext<mode>_1): Move from the
high register of the input operand.
(*<insn>qi_ext<mode>_1): Ditto.
gcc/testsuite/ChangeLog:
* gcc.target/i386/pr113044.c: New test.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/i386/i386.md | 6 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr113044.c | 24 |
2 files changed, 28 insertions, 2 deletions
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index 710068e..4c6368b 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -15527,7 +15527,8 @@ && !(rtx_equal_p (operands[0], operands[1]))" [(set (zero_extract:SWI248 (match_dup 0) (const_int 8) (const_int 8)) - (match_dup 1)) + (zero_extract:SWI248 + (match_dup 1) (const_int 8) (const_int 8))) (parallel [(set (zero_extract:SWI248 (match_dup 0) (const_int 8) (const_int 8)) @@ -16689,7 +16690,8 @@ && !(rtx_equal_p (operands[0], operands[1]))" [(set (zero_extract:SWI248 (match_dup 0) (const_int 8) (const_int 8)) - (match_dup 1)) + (zero_extract:SWI248 + (match_dup 1) (const_int 8) (const_int 8))) (parallel [(set (zero_extract:SWI248 (match_dup 0) (const_int 8) (const_int 8)) diff --git a/gcc/testsuite/gcc.target/i386/pr113044.c b/gcc/testsuite/gcc.target/i386/pr113044.c new file mode 100644 index 0000000..923e7f4 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr113044.c @@ -0,0 +1,24 @@ +/* PR target/113044 */ +/* { dg-do run } */ +/* { dg-options "-O" } */ + +typedef unsigned char __attribute__((__vector_size__ (2))) V; + +V +foo (char c, V v) +{ + V x = v >> (v & 8); + volatile char d = c; + if (!d) + __builtin_abort(); + return x; +} + +int +main (void) +{ + V x = foo (10, (V){3}); + if (x[0] != 3 || x[1]) + __builtin_abort(); + return 0; +} |