diff options
Diffstat (limited to 'lib/Basic/Targets/X86.h')
| -rw-r--r-- | lib/Basic/Targets/X86.h | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/lib/Basic/Targets/X86.h b/lib/Basic/Targets/X86.h index 019bc8d51a..1d23b0ef69 100644 --- a/lib/Basic/Targets/X86.h +++ b/lib/Basic/Targets/X86.h @@ -350,11 +350,9 @@ public: (1 << TargetInfo::LongDouble)); // x86-32 has atomics up to 8 bytes - CPUKind Kind = getCPUKind(Opts.CPU); - if (Kind >= CK_i586 || Kind == CK_Generic) - MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 64; - else if (Kind >= CK_i486) - MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 32; + // FIXME: Check that we actually have cmpxchg8b before setting + // MaxAtomicInlineWidth. (cmpxchg8b is an i586 instruction.) + MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 64; } BuiltinVaListKind getBuiltinVaListKind() const override { |