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| author | Martin Nowack <martin@se.inf.tu-dresden.de> | 2012-11-19 22:00:19 +0100 |
|---|---|---|
| committer | Martin Nowack <martin@se.inf.tu-dresden.de> | 2013-08-15 14:29:24 +0200 |
| commit | 6118766b35316702d7a360e6081558162584356e (patch) | |
| tree | d3a5cdd5881d20ff15dbce1ce5c7d7a0440e0332 /lib | |
| parent | 39616bca565f1d3f958dc7e0e071ac5dc64f5439 (diff) | |
| download | klee-6118766b35316702d7a360e6081558162584356e.tar.gz | |
Implemented llvm.umul.with.overflow
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Module/IntrinsicCleaner.cpp | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/lib/Module/IntrinsicCleaner.cpp b/lib/Module/IntrinsicCleaner.cpp index b897fcc7..2f18c17e 100644 --- a/lib/Module/IntrinsicCleaner.cpp +++ b/lib/Module/IntrinsicCleaner.cpp @@ -107,7 +107,8 @@ bool IntrinsicCleanerPass::runOnBasicBlock(BasicBlock &b) { break; } - case Intrinsic::uadd_with_overflow: { + case Intrinsic::uadd_with_overflow: + case Intrinsic::umul_with_overflow: { IRBuilder<> builder(ii->getParent(), ii); #if LLVM_VERSION_CODE < LLVM_VERSION(2, 8) @@ -118,7 +119,12 @@ bool IntrinsicCleanerPass::runOnBasicBlock(BasicBlock &b) { Value *op2 = ii->getArgOperand(1); #endif - Value *result = builder.CreateAdd(op1, op2); + Value *result = 0; + if (ii->getIntrinsicID() == Intrinsic::uadd_with_overflow) + result = builder.CreateAdd(op1, op2); + else + result = builder.CreateMul(op1, op2); + Value *overflow = builder.CreateICmpULT(result, op1); Value *resultStruct = |