Changed code gen for int to f32 to use rounding. This makes FP results

consistent with gcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22791 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/PowerPC/PPCISelPattern.cpp b/lib/Target/PowerPC/PPCISelPattern.cpp
index 9831111eabc3e6fdd6d119d5f54d4f4645b063db..f632d0ebf0480e1b99eb15e2ff18a5b309c3dc7b 100644 (file)
--- a/lib/Target/PowerPC/PPCISelPattern.cpp
+++ b/lib/Target/PowerPC/PPCISelPattern.cpp
@@ -2312,7 +2312,7 @@ unsigned ISel::SelectExpr(SDOperand N, bool Recording) {
       addFrameReference(BuildMI(BB, PPC::STW, 3).addReg(Tmp1), FrameIdx, 4);
       addFrameReference(BuildMI(BB, PPC::LFD, 2, Tmp2), FrameIdx);
       // Generate the return value with a subtract
-      BuildMI(BB, PPC::FSUB, 2, Result).addReg(Tmp2).addReg(ConstF);
+      BuildMI(BB, DestType == MVT::f64 ? PPC::FSUB : PPC::FSUBS, 2, Result).addReg(Tmp2).addReg(ConstF);
     } else {
       unsigned ConstF = getConstDouble(0x1.000008p52);
       unsigned TmpL = MakeIntReg();
@@ -2323,7 +2323,7 @@ unsigned ISel::SelectExpr(SDOperand N, bool Recording) {
       addFrameReference(BuildMI(BB, PPC::STW, 3).addReg(TmpL), FrameIdx, 4);
       addFrameReference(BuildMI(BB, PPC::LFD, 2, Tmp2), FrameIdx);
       // Generate the return value with a subtract
-      BuildMI(BB, PPC::FSUB, 2, Result).addReg(Tmp2).addReg(ConstF);
+      BuildMI(BB, DestType == MVT::f64 ? PPC::FSUB : PPC::FSUBS, 2, Result).addReg(Tmp2).addReg(ConstF);
     }
     return Result;
   }