[llvm-commits] [llvm] r140199 - /llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

Bruno Cardoso Lopes bruno.cardoso at gmail.com
Tue Sep 20 15:34:46 PDT 2011


Author: bruno
Date: Tue Sep 20 17:34:45 2011
New Revision: 140199

URL: http://llvm.org/viewvc/llvm-project?rev=140199&view=rev
Log:
Simplify max/minp[s|d] dagcombine matching

Modified:
    llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=140199&r1=140198&r2=140199&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Tue Sep 20 17:34:45 2011
@@ -12562,17 +12562,14 @@
   // Get the LHS/RHS of the select.
   SDValue LHS = N->getOperand(1);
   SDValue RHS = N->getOperand(2);
+  EVT VT = LHS.getValueType();
 
   // If we have SSE[12] support, try to form min/max nodes. SSE min/max
   // instructions match the semantics of the common C idiom x<y?x:y but not
   // x<=y?x:y, because of how they handle negative zero (which can be
   // ignored in unsafe-math mode).
-  if (Cond.getOpcode() == ISD::SETCC &&
-      ((Subtarget->hasXMMInt() &&
-        (LHS.getValueType() == MVT::f32 || LHS.getValueType() == MVT::v4f32 || 
-         LHS.getValueType() == MVT::f64 || LHS.getValueType() == MVT::v2f64)) ||
-       (Subtarget->hasAVX() &&
-        (LHS.getValueType() == MVT::v8f32 || LHS.getValueType() == MVT::v4f64)))) {
+  if (Cond.getOpcode() == ISD::SETCC && VT.isFloatingPoint() &&
+      VT != MVT::f80 && DAG.getTargetLoweringInfo().isTypeLegal(VT)) {
     ISD::CondCode CC = cast<CondCodeSDNode>(Cond.getOperand(2))->get();
 
     unsigned Opcode = 0;





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