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| author | Haochen Jiang <haochen.jiang@intel.com> | 2025-02-10 16:53:27 +0800 |
|---|---|---|
| committer | Haochen Jiang <haochen.jiang@intel.com> | 2025-02-17 11:01:36 +0800 |
| commit | e15216046dba02ffa1c3ae367cdc86d5fd3df0be (patch) | |
| tree | bd78a27c8e4ad592ee64b23a8ad7e2f9b577edcf | |
| parent | ae14d7d04da8c6cb542269722638071f999f94d8 (diff) | |
| download | gcc-e15216046dba02ffa1c3ae367cdc86d5fd3df0be.zip gcc-e15216046dba02ffa1c3ae367cdc86d5fd3df0be.tar.gz gcc-e15216046dba02ffa1c3ae367cdc86d5fd3df0be.tar.bz2 | |
i386: Do not check vector size conflict when AVX512 is not explicitly set [PR 118815]
When AVX512 is not explicitly set, we should not take EVEX512 bit into
consideration when checking vector size. It will solve the intrin header
file reporting warnings when compiling with -Wsystem-headers.
However, there is side effect on the usage for '-march=xxx -mavx10.1-256',
where xxx is with AVX512. It will not report warning on vector size for now.
Since it is a rare usage, we will take it.
gcc/ChangeLog:
PR target/118815
* config/i386/i386-options.cc (ix86_option_override_internal):
Do not check vector size conflict when AVX512 is not explicitly
set.
gcc/testsuite/ChangeLog:
PR target/118815
* gcc.target/i386/pr118815.c: New test.
| -rw-r--r-- | gcc/config/i386/i386-options.cc | 1 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/pr118815.c | 9 |
2 files changed, 10 insertions, 0 deletions
diff --git a/gcc/config/i386/i386-options.cc b/gcc/config/i386/i386-options.cc index 3467ab0..7e85334 100644 --- a/gcc/config/i386/i386-options.cc +++ b/gcc/config/i386/i386-options.cc @@ -2711,6 +2711,7 @@ ix86_option_override_internal (bool main_args_p, "using 512 as max vector size"); } else if (TARGET_AVX512F_P (opts->x_ix86_isa_flags) + && (opts->x_ix86_isa_flags_explicit & OPTION_MASK_ISA_AVX512F) && !(OPTION_MASK_ISA2_EVEX512 & opts->x_ix86_isa_flags2_explicit)) warning (0, "Vector size conflicts between AVX10.1 and AVX512, using " diff --git a/gcc/testsuite/gcc.target/i386/pr118815.c b/gcc/testsuite/gcc.target/i386/pr118815.c new file mode 100644 index 0000000..84308fc --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/pr118815.c @@ -0,0 +1,9 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -march=x86-64-v3" } */ + +#pragma GCC push_options +#pragma GCC target("avx10.2-256") + +void foo(); + +#pragma GCC pop_options |