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| author | rdivacky <rdivacky@FreeBSD.org> | 2010-04-02 08:54:30 +0000 |
|---|---|---|
| committer | rdivacky <rdivacky@FreeBSD.org> | 2010-04-02 08:54:30 +0000 |
| commit | 20e856b2a58d12231aa42d5d13888b15ac03e5a4 (patch) | |
| tree | cf5763d092b81cecc168fa28032247ee495d06e2 /lib/Target/X86/X86Subtarget.cpp | |
| parent | 2f2afc1aae898651e26987a5c71f3febb19bca98 (diff) | |
| download | FreeBSD-src-20e856b2a58d12231aa42d5d13888b15ac03e5a4.zip FreeBSD-src-20e856b2a58d12231aa42d5d13888b15ac03e5a4.tar.gz | |
Update LLVM to r100181.
Diffstat (limited to 'lib/Target/X86/X86Subtarget.cpp')
| -rw-r--r-- | lib/Target/X86/X86Subtarget.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp index cd56816..8a0cde4 100644 --- a/lib/Target/X86/X86Subtarget.cpp +++ b/lib/Target/X86/X86Subtarget.cpp @@ -266,6 +266,9 @@ void X86Subtarget::AutoDetectSubtargetFeatures() { unsigned Model = 0; DetectFamilyModel(EAX, Family, Model); IsBTMemSlow = IsAMD || (Family == 6 && Model >= 13); + // If it's Nehalem, unaligned memory access is fast. + if (Family == 15 && Model == 26) + IsUAMemFast = true; GetCpuIDAndInfo(0x80000001, &EAX, &EBX, &ECX, &EDX); HasX86_64 = (EDX >> 29) & 0x1; @@ -286,6 +289,7 @@ X86Subtarget::X86Subtarget(const std::string &TT, const std::string &FS, , HasFMA3(false) , HasFMA4(false) , IsBTMemSlow(false) + , IsUAMemFast(false) , HasVectorUAMem(false) , DarwinVers(0) , stackAlignment(8) |
