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| author | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2010-07-23 01:17:51 +0000 |
|---|---|---|
| committer | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2010-07-23 01:17:51 +0000 |
| commit | cdae7e8244e37f539a5f1c9b780de7817b40de52 (patch) | |
| tree | 9b3edc3e61affc2f38b720e3272518cbc88174ec /lib/Target/X86/X86Subtarget.cpp | |
| parent | 54e1791e4ba30867bda603acadda77fa85de6aa1 (diff) | |
Add x86 CLMUL (Carry-less multiplication) cpu feature
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109206 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86Subtarget.cpp')
| -rw-r--r-- | lib/Target/X86/X86Subtarget.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/Target/X86/X86Subtarget.cpp b/lib/Target/X86/X86Subtarget.cpp index 4a10be518f..88a5edb9a8 100644 --- a/lib/Target/X86/X86Subtarget.cpp +++ b/lib/Target/X86/X86Subtarget.cpp @@ -260,9 +260,10 @@ void X86Subtarget::AutoDetectSubtargetFeatures() { bool IsIntel = memcmp(text.c, "GenuineIntel", 12) == 0; bool IsAMD = !IsIntel && memcmp(text.c, "AuthenticAMD", 12) == 0; - HasFMA3 = IsIntel && ((ECX >> 12) & 0x1); - HasAVX = ((ECX >> 28) & 0x1); - HasAES = IsIntel && ((ECX >> 25) & 0x1); + HasCLMUL = IsIntel && ((ECX >> 1) & 0x1); + HasFMA3 = IsIntel && ((ECX >> 12) & 0x1); + HasAVX = ((ECX >> 28) & 0x1); + HasAES = IsIntel && ((ECX >> 25) & 0x1); if (IsIntel || IsAMD) { // Determine if bit test memory instructions are slow. @@ -291,6 +292,7 @@ X86Subtarget::X86Subtarget(const std::string &TT, const std::string &FS, , HasSSE4A(false) , HasAVX(false) , HasAES(false) + , HasCLMUL(false) , HasFMA3(false) , HasFMA4(false) , IsBTMemSlow(false) |