x86 CPU detection and proper subtarget support
llvm-svn: 25679
diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index 067b88c..cd014aa 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -33,6 +33,9 @@
X86TargetLowering::X86TargetLowering(TargetMachine &TM)
: TargetLowering(TM) {
+ Subtarget = &TM.getSubtarget<X86Subtarget>();
+ X86ScalarSSE = Subtarget->hasSSE2();
+
// Set up the TargetLowering object.
// X86 is weird, it always uses i8 for shift amounts and setcc results.
@@ -1657,8 +1660,8 @@
case ISD::SELECT: {
MVT::ValueType VT = Op.getValueType();
bool isFP = MVT::isFloatingPoint(VT);
- bool isFPStack = isFP && (X86Vector < SSE2);
- bool isFPSSE = isFP && (X86Vector >= SSE2);
+ bool isFPStack = isFP && !X86ScalarSSE;
+ bool isFPSSE = isFP && X86ScalarSSE;
bool addTest = false;
SDOperand Op0 = Op.getOperand(0);
SDOperand Cond, CC;