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| author | Richard Sandiford <rdsandiford@googlemail.com> | 2008-06-26 21:28:30 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2008-06-26 21:28:30 +0000 |
| commit | e2ff10a93c232352cd9d648baa1070d2982f18cb (patch) | |
| tree | b243da2903826b74d9af4b244282d7635346588d /gcc/builtins.c | |
| parent | f78c3290cdcd5328d1924935806f8ef24d7f7788 (diff) | |
| download | gcc-e2ff10a93c232352cd9d648baa1070d2982f18cb.zip gcc-e2ff10a93c232352cd9d648baa1070d2982f18cb.tar.gz gcc-e2ff10a93c232352cd9d648baa1070d2982f18cb.tar.bz2 | |
libfuncs.h (LTI_synchronize): New libfunc_index.
gcc/
* libfuncs.h (LTI_synchronize): New libfunc_index.
(synchronize_libfunc): Declare.
* builtins.c (expand_builtin_synchronize): Consider using
synchronize_libfunc before falling back on an asm blockage.
* config/mips/mips.c: Include libfuncs.h
(mips_init_libfuncs): Initialize synchronize_libfunc for TARGET_MIPS16.
From-SVN: r137162
Diffstat (limited to 'gcc/builtins.c')
| -rw-r--r-- | gcc/builtins.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/builtins.c b/gcc/builtins.c index 1039c603..10af342 100644 --- a/gcc/builtins.c +++ b/gcc/builtins.c @@ -5999,6 +5999,12 @@ expand_builtin_synchronize (void) } #endif + if (synchronize_libfunc != NULL_RTX) + { + emit_library_call (synchronize_libfunc, LCT_NORMAL, VOIDmode, 0); + return; + } + /* If no explicit memory barrier instruction is available, create an empty asm stmt with a memory clobber. */ x = build4 (ASM_EXPR, void_type_node, build_string (0, ""), NULL, NULL, |