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| author | Dan Gohman <gohman@apple.com> | 2008-08-27 20:41:38 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-08-27 20:41:38 +0000 |
| commit | f2075e053142cf60be2df91c4ea675a913333fe5 (patch) | |
| tree | 4d84639ac3a3e4258e690b815e3f9361f9898e9c /lib/CodeGen/SelectionDAG/FastISel.cpp | |
| parent | 75e2ceec552574757669f41dfbe605a6c0a58097 (diff) | |
| download | external_llvm-f2075e053142cf60be2df91c4ea675a913333fe5.zip external_llvm-f2075e053142cf60be2df91c4ea675a913333fe5.tar.gz external_llvm-f2075e053142cf60be2df91c4ea675a913333fe5.tar.bz2 | |
Fix FastISel's bitcast code for the case where getRegForValue fails.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55431 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/FastISel.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/FastISel.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/FastISel.cpp b/lib/CodeGen/SelectionDAG/FastISel.cpp index 7d40405..82eee56 100644 --- a/lib/CodeGen/SelectionDAG/FastISel.cpp +++ b/lib/CodeGen/SelectionDAG/FastISel.cpp @@ -226,7 +226,10 @@ bool FastISel::SelectBitCast(Instruction *I, DenseMap<const Value*, unsigned> &ValueMap) { // If the bitcast doesn't change the type, just use the operand value. if (I->getType() == I->getOperand(0)->getType()) { - ValueMap[I] = getRegForValue(I->getOperand(0), ValueMap); + unsigned Reg = getRegForValue(I->getOperand(0), ValueMap); + if (Reg == 0) + return false; + ValueMap[I] = Reg; return true; } |