[llvm-commits] [llvm] r109206 - in /llvm/trunk/lib/Target/X86: X86InstrInfo.td X86Subtarget.cpp X86Subtarget.h
Bruno Cardoso Lopes
bruno.cardoso at gmail.com
Thu Jul 22 18:17:52 PDT 2010
Author: bruno
Date: Thu Jul 22 20:17:51 2010
New Revision: 109206
URL: http://llvm.org/viewvc/llvm-project?rev=109206&view=rev
Log:
Add x86 CLMUL (Carry-less multiplication) cpu feature
Modified:
llvm/trunk/lib/Target/X86/X86InstrInfo.td
llvm/trunk/lib/Target/X86/X86Subtarget.cpp
llvm/trunk/lib/Target/X86/X86Subtarget.h
Modified: llvm/trunk/lib/Target/X86/X86InstrInfo.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrInfo.td?rev=109206&r1=109205&r2=109206&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrInfo.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrInfo.td Thu Jul 22 20:17:51 2010
@@ -357,6 +357,7 @@
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()">;
Modified: llvm/trunk/lib/Target/X86/X86Subtarget.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86Subtarget.cpp?rev=109206&r1=109205&r2=109206&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86Subtarget.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86Subtarget.cpp Thu Jul 22 20:17:51 2010
@@ -260,9 +260,10 @@
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 @@
, HasSSE4A(false)
, HasAVX(false)
, HasAES(false)
+ , HasCLMUL(false)
, HasFMA3(false)
, HasFMA4(false)
, IsBTMemSlow(false)
Modified: llvm/trunk/lib/Target/X86/X86Subtarget.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86Subtarget.h?rev=109206&r1=109205&r2=109206&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86Subtarget.h (original)
+++ llvm/trunk/lib/Target/X86/X86Subtarget.h Thu Jul 22 20:17:51 2010
@@ -74,6 +74,9 @@
/// 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 @@
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; }
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