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| author | H.J. Lu <hjl.tools@gmail.com> | 2021-07-09 09:16:01 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2021-07-14 05:14:31 -0700 |
| commit | cc11b924bfe7752edbba052ca71653f46a60887a (patch) | |
| tree | 99567aef1bd6acfdfb8ae6fa5587d8c752a280a5 /gcc/config/i386/i386.h | |
| parent | f9c2ce1dae270d8d5dc261a57a21f96a1da5ea2d (diff) | |
| download | gcc-cc11b924bfe7752edbba052ca71653f46a60887a.zip gcc-cc11b924bfe7752edbba052ca71653f46a60887a.tar.gz gcc-cc11b924bfe7752edbba052ca71653f46a60887a.tar.bz2 | |
x86: Don't enable UINTR in 32-bit mode
UINTR is available only in 64-bit mode. Since the codegen target is
unknown when the the gcc driver is processing -march=native, to properly
handle UINTR for -march=native:
1. Pass "arch [32|64]" and "tune [32|64]" to host_detect_local_cpu to
indicate 32-bit and 64-bit codegen.
2. Change ix86_option_override_internal to enable UINTR only in 64-bit
mode for -march=CPU when PTA_CPU includes PTA_UINTR.
gcc/
PR target/101395
* config/i386/driver-i386.c (host_detect_local_cpu): Check
"arch [32|64]" and "tune [32|64]" for 32-bit and 64-bit codegen.
Enable UINTR only for 64-bit codegen.
* config/i386/i386-options.c
(ix86_option_override_internal::DEF_PTA): Skip PTA_UINTR if not
in 64-bit mode.
* config/i386/i386.h (ARCH_ARG): New.
(CC1_CPU_SPEC): Pass "[arch|tune] 32" for 32-bit codegen and
"[arch|tune] 64" for 64-bit codegen.
gcc/testsuite/
PR target/101395
* gcc.target/i386/pr101395-1.c: New test.
* gcc.target/i386/pr101395-2.c: Likewise.
* gcc.target/i386/pr101395-3.c: Likewise.
Diffstat (limited to 'gcc/config/i386/i386.h')
| -rw-r--r-- | gcc/config/i386/i386.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h index 8c3eace..324e8a9 100644 --- a/gcc/config/i386/i386.h +++ b/gcc/config/i386/i386.h @@ -576,10 +576,11 @@ extern const char *host_detect_local_cpu (int argc, const char **argv); #ifndef HAVE_LOCAL_CPU_DETECT #define CC1_CPU_SPEC CC1_CPU_SPEC_1 #else +#define ARCH_ARG "%{" OPT_ARCH64 ":64;:32}" #define CC1_CPU_SPEC CC1_CPU_SPEC_1 \ -"%{march=native:%>march=native %:local_cpu_detect(arch) \ - %{!mtune=*:%>mtune=native %:local_cpu_detect(tune)}} \ -%{mtune=native:%>mtune=native %:local_cpu_detect(tune)}" +"%{march=native:%>march=native %:local_cpu_detect(arch " ARCH_ARG ") \ + %{!mtune=*:%>mtune=native %:local_cpu_detect(tune " ARCH_ARG ")}} \ +%{mtune=native:%>mtune=native %:local_cpu_detect(tune " ARCH_ARG ")}" #endif #endif |