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| author | H.J. Lu <hongjiu.lu@intel.com> | 2018-10-05 11:29:44 +0000 |
|---|---|---|
| committer | H.J. Lu <hjl@gcc.gnu.org> | 2018-10-05 04:29:44 -0700 |
| commit | ae36de91537f1568e0f50bd55b5b976b8289cdc1 (patch) | |
| tree | e4482cf1bd396baa0cd4c01523b536a34acf5280 /gcc | |
| parent | 49022a8b837e77020b0e03ce8b9c70e67bd59872 (diff) | |
| download | gcc-ae36de91537f1568e0f50bd55b5b976b8289cdc1.zip gcc-ae36de91537f1568e0f50bd55b5b976b8289cdc1.tar.gz gcc-ae36de91537f1568e0f50bd55b5b976b8289cdc1.tar.bz2 | |
i386: Don't pass -msse2avx to assembler for -mavx
With
gcc -O2 -fPIC -flto -g -c -o a.o a.c
gcc -O2 -fPIC -flto -g -mavx -c -o b.o b.c
gcc -shared -O2 -fPIC -flto -g -o lib1.so a.o b.o
LTO correctly generates AVX for b.o and SSE for a.o. But the GCC driver
passes -msse2avx to assembler, which encodes SSE instructions as AVX
instructions. We shouldn't pass -msse2avx to assembler for -mavx.
PR target/87522
* config/i386/gnu-user.h (ASM_SPEC): Don't pass -msse2avx to
assembler for -mavx.
* config/i386/gnu-user64.h (ASM_SPEC): Likewise.
From-SVN: r264864
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 7 | ||||
| -rw-r--r-- | gcc/config/i386/gnu-user.h | 2 | ||||
| -rw-r--r-- | gcc/config/i386/gnu-user64.h | 2 |
3 files changed, 9 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e5575fe..e9edd10 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2018-10-05 H.J. Lu <hongjiu.lu@intel.com> + + PR target/87522 + * config/i386/gnu-user.h (ASM_SPEC): Don't pass -msse2avx to + assembler for -mavx. + * config/i386/gnu-user64.h (ASM_SPEC): Likewise. + 2018-10-05 Segher Boessenkool <segher@kernel.crashing.org> PR target/87509 diff --git a/gcc/config/i386/gnu-user.h b/gcc/config/i386/gnu-user.h index a922c9b..baed87a 100644 --- a/gcc/config/i386/gnu-user.h +++ b/gcc/config/i386/gnu-user.h @@ -67,7 +67,7 @@ along with GCC; see the file COPYING3. If not see #undef ASM_SPEC #define ASM_SPEC \ - "--32 %{!mno-sse2avx:%{mavx:-msse2avx}} %{msse2avx:%{!mavx:-msse2avx}}" + "--32 %{msse2avx:%{!mavx:-msse2avx}}" #undef SUBTARGET_EXTRA_SPECS #define SUBTARGET_EXTRA_SPECS \ diff --git a/gcc/config/i386/gnu-user64.h b/gcc/config/i386/gnu-user64.h index f7a68fd..09141ce 100644 --- a/gcc/config/i386/gnu-user64.h +++ b/gcc/config/i386/gnu-user64.h @@ -50,7 +50,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see #define ASM_SPEC "%{" SPEC_32 ":--32} \ %{" SPEC_64 ":--64} \ %{" SPEC_X32 ":--x32} \ - %{!mno-sse2avx:%{mavx:-msse2avx}} %{msse2avx:%{!mavx:-msse2avx}}" + %{msse2avx:%{!mavx:-msse2avx}}" #define GNU_USER_TARGET_LINK_SPEC \ "%{" SPEC_64 ":-m " GNU_USER_LINK_EMULATION64 "} \ |