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| author | H.J. Lu <hjl.tools@gmail.com> | 2025-12-08 13:32:55 +0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2025-12-08 15:23:07 +0800 |
| commit | bde7cf998666c449f353d928c9cb70de776c7555 (patch) | |
| tree | bb0128d97c4b0ee2e7aeb5d8c7d35dfc0f1b757d | |
| parent | f80829a9f98c99e751bc2b80cffbe599a117f430 (diff) | |
| download | gcc-bde7cf998666c449f353d928c9cb70de776c7555.zip gcc-bde7cf998666c449f353d928c9cb70de776c7555.tar.gz gcc-bde7cf998666c449f353d928c9cb70de776c7555.tar.bz2 | |
x86: Compile avx2-vpcmpgtq-1.c with -fno-fuse-ops-with-volatile-access
When -march=cascadelake is added, we generate
vmovdqa x(%rip), %ymm0
vpcmpq $1, x(%rip), %ymm0, %k0
vpmovm2q %k0, %ymm0
vmovdqa %ymm0, x(%rip)
instead of
vmovdqa x(%rip), %ymm1
vmovdqa x(%rip), %ymm0
vpcmpgtq %ymm1, %ymm0, %ymm0
vmovdqa %ymm0, x(%rip)
Compile avx2-vpcmpgtq-1.c with -fno-fuse-ops-with-volatile-access to
generate vpcmpgtq instead of vpcmpq.
PR target/122343
* gcc.target/i386/avx2-vpcmpgtq-1.c: Compile with
-fno-fuse-ops-with-volatile-access.
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
| -rw-r--r-- | gcc/testsuite/gcc.target/i386/avx2-vpcmpgtq-1.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/testsuite/gcc.target/i386/avx2-vpcmpgtq-1.c b/gcc/testsuite/gcc.target/i386/avx2-vpcmpgtq-1.c index 7a98380..5e6f431 100644 --- a/gcc/testsuite/gcc.target/i386/avx2-vpcmpgtq-1.c +++ b/gcc/testsuite/gcc.target/i386/avx2-vpcmpgtq-1.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-mavx2 -O2" } */ +/* { dg-options "-mavx2 -O2 -fno-fuse-ops-with-volatile-access" } */ /* { dg-final { scan-assembler "vpcmpgtq\[ \\t\]+\[^\n\]*%ymm\[0-9\]" } } */ #include <immintrin.h> |