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authorJay Foad <jay.foad@gmail.com>2010-01-15 08:32:58 +0000
committerJay Foad <jay.foad@gmail.com>2010-01-15 08:32:58 +0000
commitbcbdbfb3459fd41ed69319642336a79b64939f54 (patch)
tree2a8900e3ef09017138a0f6f0305153febd78a8c7 /llvm/lib/ExecutionEngine
parentabf6ba16127674658fbe2c95af3254b8fc7ed4e7 (diff)
downloadbcm5719-llvm-bcbdbfb3459fd41ed69319642336a79b64939f54.tar.gz
bcm5719-llvm-bcbdbfb3459fd41ed69319642336a79b64939f54.zip
Fix http://llvm.org/PR6028, an assertion failure when an UndefValue of
integer type is used. llvm-svn: 93509
Diffstat (limited to 'llvm/lib/ExecutionEngine')
-rw-r--r--llvm/lib/ExecutionEngine/ExecutionEngine.cpp18
1 files changed, 16 insertions, 2 deletions
diff --git a/llvm/lib/ExecutionEngine/ExecutionEngine.cpp b/llvm/lib/ExecutionEngine/ExecutionEngine.cpp
index c466400393e..89c4290f234 100644
--- a/llvm/lib/ExecutionEngine/ExecutionEngine.cpp
+++ b/llvm/lib/ExecutionEngine/ExecutionEngine.cpp
@@ -491,8 +491,22 @@ void *ExecutionEngine::getPointerToGlobal(const GlobalValue *GV) {
/// @brief Get a GenericValue for a Constant*
GenericValue ExecutionEngine::getConstantValue(const Constant *C) {
// If its undefined, return the garbage.
- if (isa<UndefValue>(C))
- return GenericValue();
+ if (isa<UndefValue>(C)) {
+ GenericValue Result;
+ switch (C->getType()->getTypeID()) {
+ case Type::IntegerTyID:
+ case Type::X86_FP80TyID:
+ case Type::FP128TyID:
+ case Type::PPC_FP128TyID:
+ // Although the value is undefined, we still have to construct an APInt
+ // with the correct bit width.
+ Result.IntVal = APInt(C->getType()->getPrimitiveSizeInBits(), 0);
+ break;
+ default:
+ break;
+ }
+ return Result;
+ }
// If the value is a ConstantExpr
if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) {
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