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| author | Alan Modra <amodra@gmail.com> | 2013-11-20 09:20:33 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gcc.gnu.org> | 2013-11-20 09:20:33 +1030 |
| commit | 8ce616e22271df064568eafaa0f08c4862221074 (patch) | |
| tree | db3a12dbab7ee9501d82eed1ae386c1080bab3a9 | |
| parent | 32ad0f03298dd5edd015fa78dcfbb96d66c9a80d (diff) | |
| download | gcc-8ce616e22271df064568eafaa0f08c4862221074.zip gcc-8ce616e22271df064568eafaa0f08c4862221074.tar.gz gcc-8ce616e22271df064568eafaa0f08c4862221074.tar.bz2 | |
sysv4.h (CC1_ENDIAN_LITTLE_SPEC): Define as empty.
* config/rs6000/sysv4.h (CC1_ENDIAN_LITTLE_SPEC): Define as empty.
* config/rs6000/rs6000.c (rs6000_option_override_internal): Default
to strict alignment on older processors when little-endian.
* config/rs6000/linux64.h (PROCESSOR_DEFAULT64): Default to power8
for ELFv2.
From-SVN: r205060
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/config/rs6000/linux64.h | 4 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.c | 6 | ||||
| -rw-r--r-- | gcc/config/rs6000/sysv4.h | 7 |
4 files changed, 19 insertions, 6 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 9cd78e9..b6b9e92 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2013-11-20 Alan Modra <amodra@gmail.com> + + * config/rs6000/sysv4.h (CC1_ENDIAN_LITTLE_SPEC): Define as empty. + * config/rs6000/rs6000.c (rs6000_option_override_internal): Default + to strict alignment on older processors when little-endian. + * config/rs6000/linux64.h (PROCESSOR_DEFAULT64): Default to power8 + for ELFv2. + 2013-11-19 Teresa Johnson <tejohnson@google.com> * common/config/i386/i386-common.c: Enable diff --git a/gcc/config/rs6000/linux64.h b/gcc/config/rs6000/linux64.h index 78e8453..66b483e 100644 --- a/gcc/config/rs6000/linux64.h +++ b/gcc/config/rs6000/linux64.h @@ -71,7 +71,11 @@ extern int dot_symbols; #undef PROCESSOR_DEFAULT #define PROCESSOR_DEFAULT PROCESSOR_POWER7 #undef PROCESSOR_DEFAULT64 +#ifdef LINUX64_DEFAULT_ABI_ELFv2 +#define PROCESSOR_DEFAULT64 PROCESSOR_POWER8 +#else #define PROCESSOR_DEFAULT64 PROCESSOR_POWER7 +#endif /* We don't need to generate entries in .fixup, except when -mrelocatable or -mrelocatable-lib is given. */ diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 7556eb6..3735f49 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -3222,6 +3222,12 @@ rs6000_option_override_internal (bool global_init_p) } } + /* If little-endian, default to -mstrict-align on older processors. + Testing for htm matches power8 and later. */ + if (!BYTES_BIG_ENDIAN + && !(processor_target_table[tune_index].target_enable & OPTION_MASK_HTM)) + rs6000_isa_flags |= ~rs6000_isa_flags_explicit & OPTION_MASK_STRICT_ALIGN; + /* Add some warnings for VSX. */ if (TARGET_VSX) { diff --git a/gcc/config/rs6000/sysv4.h b/gcc/config/rs6000/sysv4.h index ba4ceb3..73c3ec1 100644 --- a/gcc/config/rs6000/sysv4.h +++ b/gcc/config/rs6000/sysv4.h @@ -538,12 +538,7 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN) #define CC1_ENDIAN_BIG_SPEC "" -#define CC1_ENDIAN_LITTLE_SPEC "\ -%{!mstrict-align: %{!mno-strict-align: \ - %{!mcall-i960-old: \ - -mstrict-align \ - } \ -}}" +#define CC1_ENDIAN_LITTLE_SPEC "" #define CC1_ENDIAN_DEFAULT_SPEC "%(cc1_endian_big)" |