diff options
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.td | 1 | ||||
| -rw-r--r-- | lib/Target/X86/X86Subtarget.cpp | 8 | ||||
| -rw-r--r-- | lib/Target/X86/X86Subtarget.h | 4 |
3 files changed, 10 insertions, 3 deletions
diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td index baf072838c..8d370fe5f1 100644 --- a/lib/Target/X86/X86InstrInfo.td +++ b/lib/Target/X86/X86InstrInfo.td @@ -357,6 +357,7 @@ def HasSSE41 : Predicate<"Subtarget->hasSSE41()">; def HasSSE42 : Predicate<"Subtarget->hasSSE42()">; def HasSSE4A : Predicate<"Subtarget->hasSSE4A()">; def HasAVX : Predicate<"Subtarget->hasAVX()">; +def HasCLMUL : Predicate<"Subtarget->hasCLMUL()">; def HasFMA3 : Predicate<"Subtarget->hasFMA3()">; def HasFMA4 : Predicate<"Subtarget->hasFMA4()">; def FPStackf32 : Predicate<"!Subtarget->hasSSE1()">; 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) diff --git a/lib/Target/X86/X86Subtarget.h b/lib/Target/X86/X86Subtarget.h index 486dbc4e2e..531fb04bd6 100644 --- a/lib/Target/X86/X86Subtarget.h +++ b/lib/Target/X86/X86Subtarget.h @@ -74,6 +74,9 @@ protected: /// HasAES - Target has AES instructions bool HasAES; + /// HasCLMUL - Target has carry-less multiplication + bool HasCLMUL; + /// HasFMA3 - Target has 3-operand fused multiply-add bool HasFMA3; @@ -149,6 +152,7 @@ public: bool has3DNowA() const { return X863DNowLevel >= ThreeDNowA; } bool hasAVX() const { return HasAVX; } bool hasAES() const { return HasAES; } + bool hasCLMUL() const { return HasCLMUL; } bool hasFMA3() const { return HasFMA3; } bool hasFMA4() const { return HasFMA4; } bool isBTMemSlow() const { return IsBTMemSlow; } |