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Fix a regression from r125393;

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It caused a crash in MultiSource/Benchmarks/Bullet.
Opt hit an assertion with "opt -std-compile-opts" because
Constant::getAllOnesValue doesn't know how to handle floats.

This patch added a test to reproduce the problem and a check that the
destination vector is of integer type.

Thank you Benjamin!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125459 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nadav Rotem
2011-02-13 15:45:34 +00:00
parent 915eeb4887
commit bc53ca1b53
2 changed files with 19 additions and 2 deletions
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3
lib/VMCore/ConstantFold.cpp
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@@ -43,7 +43,8 @@ using namespace llvm;
static Constant *BitCastConstantVector(ConstantVector *CV,
const VectorType *DstTy) {
if (CV->isAllOnesValue()) return Constant::getAllOnesValue(DstTy);
if (CV->isAllOnesValue() && DstTy->getElementType()->isIntegerTy())
return Constant::getAllOnesValue(DstTy);
if (CV->isNullValue()) return Constant::getNullValue(DstTy);
// If this cast changes element count then we can't handle it here: