diff options
| author | Joseph Myers <joseph@codesourcery.com> | 2006-11-18 00:22:45 +0000 |
|---|---|---|
| committer | Joseph Myers <jsm28@gcc.gnu.org> | 2006-11-18 00:22:45 +0000 |
| commit | 8609875306931541730c93b2b99d835f110673fd (patch) | |
| tree | 732c162adaa79606a4d2a844a12e25444af0c6c7 /gcc | |
| parent | 0828ca7e69a85c0bff581e757a2e0d276a25d88a (diff) | |
| download | gcc-8609875306931541730c93b2b99d835f110673fd.zip gcc-8609875306931541730c93b2b99d835f110673fd.tar.gz gcc-8609875306931541730c93b2b99d835f110673fd.tar.bz2 | |
rs6000.h (TARGET_NO_LWSYNC): Define.
gcc:
* config/rs6000/rs6000.h (TARGET_NO_LWSYNC): Define.
* config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define
__NO_LWSYNC__ if TARGET_NO_LWSYNC.
* config/rs6000/sync.md (lwsync): Emit plain sync if
TARGET_NO_LWSYNC.
libstdc++-v3:
* config/cpu/powerpc/atomic_word.h (_GLIBCXX_WRITE_MEM_BARRIER):
Use plain sync if __NO_LWSYNC__.
From-SVN: r118961
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 8 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000-c.c | 3 | ||||
| -rw-r--r-- | gcc/config/rs6000/rs6000.h | 3 | ||||
| -rw-r--r-- | gcc/config/rs6000/sync.md | 7 |
4 files changed, 20 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index f3c8b87..01ed1bf 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2006-11-18 Joseph Myers <joseph@codesourcery.com> + + * config/rs6000/rs6000.h (TARGET_NO_LWSYNC): Define. + * config/rs6000/rs6000-c.c (rs6000_cpu_cpp_builtins): Define + __NO_LWSYNC__ if TARGET_NO_LWSYNC. + * config/rs6000/sync.md (lwsync): Emit plain sync if + TARGET_NO_LWSYNC. + 2006-11-17 DJ Delorie <dj@redhat.com> * reload1.c (reloads_unique_chain): New. diff --git a/gcc/config/rs6000/rs6000-c.c b/gcc/config/rs6000/rs6000-c.c index 94d4a6a..d4988bd 100644 --- a/gcc/config/rs6000/rs6000-c.c +++ b/gcc/config/rs6000/rs6000-c.c @@ -127,6 +127,9 @@ rs6000_cpu_cpp_builtins (cpp_reader *pfile) /* Used by lwarx/stwcx. errata work-around. */ if (rs6000_cpu == PROCESSOR_PPC405) builtin_define ("__PPC405__"); + /* Used by libstdc++. */ + if (TARGET_NO_LWSYNC) + builtin_define ("__NO_LWSYNC__"); /* May be overridden by target configuration. */ RS6000_CPU_CPP_ENDIAN_BUILTINS(); diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h index 6ccc3c0..0795e6e 100644 --- a/gcc/config/rs6000/rs6000.h +++ b/gcc/config/rs6000/rs6000.h @@ -342,6 +342,9 @@ extern enum rs6000_nop_insertion rs6000_sched_insert_nops; #define TARGET_E500_SINGLE 0 #define TARGET_E500_DOUBLE 0 +/* E500 processors only support plain "sync", not lwsync. */ +#define TARGET_NO_LWSYNC TARGET_E500 + /* Sometimes certain combinations of command options do not make sense on a particular target machine. You can define a macro `OVERRIDE_OPTIONS' to take account of this. This macro, if diff --git a/gcc/config/rs6000/sync.md b/gcc/config/rs6000/sync.md index b244ef6..b716647 100644 --- a/gcc/config/rs6000/sync.md +++ b/gcc/config/rs6000/sync.md @@ -615,6 +615,11 @@ [(set (mem:BLK (match_scratch 0 "X")) (unspec_volatile:BLK [(mem:BLK (match_scratch 1 "X"))] UNSPEC_LWSYNC))] "" - ".long 0x7c2004ac" +{ + if (TARGET_NO_LWSYNC) + return "sync"; + else + return ".long 0x7c2004ac"; +} [(set_attr "type" "sync")]) |