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Fix FastISel's bitcast code for the case where getRegForValue fails.
author
Dan Gohman
<gohman@apple.com>
Wed, 27 Aug 2008 20:41:38 +0000
(20:41 +0000)
committer
Dan Gohman
<gohman@apple.com>
Wed, 27 Aug 2008 20:41:38 +0000
(20:41 +0000)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@55431
91177308
-0d34-0410-b5e6-
96231b3b80d8
lib/CodeGen/SelectionDAG/FastISel.cpp
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diff --git
a/lib/CodeGen/SelectionDAG/FastISel.cpp
b/lib/CodeGen/SelectionDAG/FastISel.cpp
index 7d40405bd534e94cfb27296d7e07a41427506860..82eee56cd2b9d376b5b2ac22a3765b4968139fd4 100644
(file)
--- 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;
}