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Add constant folding wrapper support for select instructions.
author
Chris Lattner
<sabre@nondot.org>
Fri, 12 Mar 2004 05:53:03 +0000
(
05:53
+0000)
committer
Chris Lattner
<sabre@nondot.org>
Fri, 12 Mar 2004 05:53:03 +0000
(
05:53
+0000)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12319
91177308
-0d34-0410-b5e6-
96231b3b80d8
lib/Transforms/Utils/Local.cpp
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diff --git
a/lib/Transforms/Utils/Local.cpp
b/lib/Transforms/Utils/Local.cpp
index 821d1e13ebc5ba4d5c413e29e7f9b794f83293c9..c54765b42785177f7416814de93e276222944a7b 100644
(file)
--- a/
lib/Transforms/Utils/Local.cpp
+++ b/
lib/Transforms/Utils/Local.cpp
@@
-79,6
+79,10
@@
Constant *llvm::ConstantFoldInstruction(Instruction *I) {
default: return 0;
case Instruction::Cast:
return ConstantExpr::getCast(Op0, I->getType());
+ case Instruction::Select:
+ if (Constant *Op2 = dyn_cast<Constant>(I->getOperand(2)))
+ return ConstantExpr::getSelect(Op0, Op1, Op2);
+ return 0;
case Instruction::GetElementPtr:
std::vector<Constant*> IdxList;
IdxList.reserve(I->getNumOperands()-1);