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LSR, correct fix for rdar://9786536. Silly casting bug. 

llvm-svn: 135654
This commit is contained in:
Andrew Trick 2011-07-21 01:45:54 +00:00
parent 6d54d89af1
commit bd243d0dfe
2 changed files with 3 additions and 3 deletions
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4
llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
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@ -1480,8 +1480,8 @@ void LSRInstance::OptimizeShadowIV() {
ConstantInt *Init = dyn_cast<ConstantInt>(PH->getIncomingValue(Entry)); ConstantInt *Init = dyn_cast<ConstantInt>(PH->getIncomingValue(Entry));
if (!Init) continue; if (!Init) continue;
Constant *NewInit = ConstantFP::get(DestTy, IsSigned ? Constant *NewInit = ConstantFP::get(DestTy, IsSigned ?
Init->getSExtValue() : (double)Init->getSExtValue() :
Init->getZExtValue()); (double)Init->getZExtValue());
BinaryOperator *Incr = BinaryOperator *Incr =
dyn_cast<BinaryOperator>(PH->getIncomingValue(Latch)); dyn_cast<BinaryOperator>(PH->getIncomingValue(Latch));

2
llvm/test/Transforms/LoopStrengthReduce/2011-07-20-DoubleIV.ll
View File

@ -25,7 +25,7 @@ for.end:
; Now check that the computed double constant is correct. ; Now check that the computed double constant is correct.
; CHECK: @doubleIV ; CHECK: @doubleIV
; CHECK: phi double [ 0x43F0000000000000, %entry ] ; CHECK: phi double [ -3.900000e+01, %entry ]
; CHECK: br ; CHECK: br
define void @doubleIV() nounwind { define void @doubleIV() nounwind {
entry: entry: