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authorChris Lattner <sabre@nondot.org>2009-10-29 01:21:20 +0000
committerChris Lattner <sabre@nondot.org>2009-10-29 01:21:20 +0000
commit4c0236fd8b94f9721bac8a66c3220e797310c593 (patch)
treed7367f0b61584a270684fb043f7026de15ffe85b /lib/Transforms/Utils/ValueMapper.cpp
parent78c5cdaf2a24c9d2b5c89fdb5d66fd6ca3b5654b (diff)
teach various passes about blockaddress. We no longer
crash on any clang tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85465 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Utils/ValueMapper.cpp')
-rw-r--r--lib/Transforms/Utils/ValueMapper.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Transforms/Utils/ValueMapper.cpp b/lib/Transforms/Utils/ValueMapper.cpp
index 21126c94aef..39331d78169 100644
--- a/lib/Transforms/Utils/ValueMapper.cpp
+++ b/lib/Transforms/Utils/ValueMapper.cpp
@@ -113,8 +113,8 @@ Value *llvm::MapValue(const Value *V, ValueMapTy &VM) {
if (BlockAddress *BA = dyn_cast<BlockAddress>(C)) {
Function *F = cast<Function>(MapValue(BA->getFunction(), VM));
- BasicBlock *BB = cast<BasicBlock>(MapValue(BA->getBasicBlock(), VM));
- return VM[V] = BlockAddress::get(F, BB);
+ BasicBlock *BB = cast_or_null<BasicBlock>(MapValue(BA->getBasicBlock(),VM));
+ return VM[V] = BlockAddress::get(F, BB ? BB : BA->getBasicBlock());
}
llvm_unreachable("Unknown type of constant!");