repair mindless SELECT waste.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20982 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/IA64/IA64ISelPattern.cpp b/lib/Target/IA64/IA64ISelPattern.cpp
index 1b1c81fdcc9727bced9769c45727128488359fba..16607cbcc32ee680aba19b8ffcc80653bbb9b11b 100644 (file)
--- a/lib/Target/IA64/IA64ISelPattern.cpp
+++ b/lib/Target/IA64/IA64ISelPattern.cpp
@@ -554,11 +554,6 @@ unsigned ISel::SelectExpr(SDOperand N) {
       Tmp2 = SelectExpr(N.getOperand(1)); //Use if TRUE
       Tmp3 = SelectExpr(N.getOperand(2)); //Use if FALSE
 
-      // a temporary predicate register to hold the complement of the
-      // condition:
-      unsigned CondComplement=MakeReg(MVT::i1);
-      unsigned bogusTemp=MakeReg(MVT::i1);
-
       unsigned bogoResult;
       
       switch (N.getOperand(1).getValueType()) {
@@ -571,16 +566,11 @@ unsigned ISel::SelectExpr(SDOperand N) {
          bogoResult=MakeReg(MVT::f64);
          break;
       }
-      // set up the complement predicate reg (CondComplement = NOT Tmp1)
-      BuildMI(BB, IA64::CMPEQ, 2, bogusTemp).addReg(IA64::r0).addReg(IA64::r0);
-      BuildMI(BB, IA64::TPCMPNE, 3, CondComplement).addReg(bogusTemp)
-       .addReg(IA64::r0).addReg(IA64::r0).addReg(Tmp1);
-       
-      // and do a 'conditional move'
-      BuildMI(BB, IA64::PMOV, 2, bogoResult).addReg(Tmp2).addReg(Tmp1);
-      BuildMI(BB, IA64::CMOV, 2, Result).addReg(bogoResult).addReg(Tmp3)
-       .addReg(CondComplement);
- 
+
+      BuildMI(BB, IA64::MOV, 1, bogoResult).addReg(Tmp3);
+      BuildMI(BB, IA64::CMOV, 2, Result).addReg(bogoResult).addReg(Tmp2)
+       .addReg(Tmp1); // FIXME: should be FMOV/FCMOV sometimes,
+                       // though this will work for now (no JIT)
       return Result;
   }