[llvm] r222203 - Revert r222040 because of bot failure.

[Manman Ren]

Author: mren
Date: Mon Nov 17 18:33:22 2014
New Revision: 222203

URL: http://llvm.org/viewvc/llvm-project?rev=222203&view=rev
Log:
Revert r222040 because of bot failure.

http://lab.llvm.org:8080/green/job/clang-Rlto_master/298/
Hopefully, bot will be green.

Modified:
    llvm/trunk/lib/Transforms/InstCombine/InstCombineCasts.cpp
    llvm/trunk/test/Transforms/InstCombine/fpcast.ll

Modified: llvm/trunk/lib/Transforms/InstCombine/InstCombineCasts.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/InstCombine/InstCombineCasts.cpp?rev=222203&r1=222202&r2=222203&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/InstCombine/InstCombineCasts.cpp (original)
+++ llvm/trunk/lib/Transforms/InstCombine/InstCombineCasts.cpp Mon Nov 17 18:33:22 2014
@@ -1269,17 +1269,14 @@ Instruction *InstCombiner::visitFPTrunc(
         // type of OpI doesn't enter into things at all.  We simply evaluate
         // in whichever source type is larger, then convert to the
         // destination type.
-        Value *NewLHS = LHSOrig, *NewRHS = RHSOrig;
         if (LHSWidth < SrcWidth)
-          NewLHS = Builder->CreateFPExt(NewLHS, RHSOrig->getType());
+          LHSOrig = Builder->CreateFPExt(LHSOrig, RHSOrig->getType());
         else if (RHSWidth <= SrcWidth)
-          NewRHS = Builder->CreateFPExt(NewRHS, LHSOrig->getType());
-        if (NewLHS != LHSOrig || NewRHS != RHSOrig) {
-          Value *ExactResult = Builder->CreateFRem(NewLHS, NewRHS);
-          if (Instruction *RI = dyn_cast<Instruction>(ExactResult))
-            RI->copyFastMathFlags(OpI);
-          return CastInst::CreateFPCast(ExactResult, CI.getType());
-        }
+          RHSOrig = Builder->CreateFPExt(RHSOrig, LHSOrig->getType());
+        Value *ExactResult = Builder->CreateFRem(LHSOrig, RHSOrig);
+        if (Instruction *RI = dyn_cast<Instruction>(ExactResult))
+          RI->copyFastMathFlags(OpI);
+        return CastInst::CreateFPCast(ExactResult, CI.getType());
     }
 
     // (fptrunc (fneg x)) -> (fneg (fptrunc x))

Modified: llvm/trunk/test/Transforms/InstCombine/fpcast.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstCombine/fpcast.ll?rev=222203&r1=222202&r2=222203&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/InstCombine/fpcast.ll (original)
+++ llvm/trunk/test/Transforms/InstCombine/fpcast.ll Mon Nov 17 18:33:22 2014
@@ -53,13 +53,3 @@ define half @test5(float %a, float %b, f
 }
 
 declare float @llvm.fabs.f32(float) nounwind readonly
-
-define <1 x float> @test6(<1 x double> %V) {
-  %frem = frem <1 x double> %V, %V
-  %trunc = fptrunc <1 x double> %frem to <1 x float>
-  ret <1 x float> %trunc
-; CHECK-LABEL: @test6
-; CHECK-NEXT: %[[frem:.*]]  = frem <1 x double> %V, %V
-; CHECK-NEXT: %[[trunc:.*]] = fptrunc <1 x double> %[[frem]] to <1 x float>
-; CHECK-NEXT: ret <1 x float> %trunc
-}