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| author | Chris Lattner <sabre@nondot.org> | 2010-12-13 04:18:32 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-12-13 04:18:32 +0000 |
| commit | 9b1af510cb2a63e23b2dae82745ce00c734c9c4d (patch) | |
| tree | 3cb59374fe04541e35db795c27fd3abcdc61c168 /llvm/lib/Transforms | |
| parent | 395252d93eb68e1c3e9bbd8106f1512abd745761 (diff) | |
| download | bcm5719-llvm-9b1af510cb2a63e23b2dae82745ce00c734c9c4d.tar.gz bcm5719-llvm-9b1af510cb2a63e23b2dae82745ce00c734c9c4d.zip | |
don't bother handling non-canonical icmp's
llvm-svn: 121676
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/Utils/SimplifyCFG.cpp | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/llvm/lib/Transforms/Utils/SimplifyCFG.cpp b/llvm/lib/Transforms/Utils/SimplifyCFG.cpp index d3181b138a7..a1e7486ba50 100644 --- a/llvm/lib/Transforms/Utils/SimplifyCFG.cpp +++ b/llvm/lib/Transforms/Utils/SimplifyCFG.cpp @@ -306,11 +306,10 @@ GatherConstantSetEQs(Value *V, std::vector<ConstantInt*> &Values, Values.push_back(C); return Inst->getOperand(0); } - if (ConstantInt *C = GetConstantInt(Inst->getOperand(0), TD)) { - Values.push_back(C); - return Inst->getOperand(1); - } - } else if (Inst->getOpcode() == Instruction::Or) { + return 0; + } + + if (Inst->getOpcode() == Instruction::Or) { if (Value *LHS = GatherConstantSetEQs(Inst->getOperand(0), Values, TD)) if (Value *RHS = GatherConstantSetEQs(Inst->getOperand(1), Values, TD)) if (LHS == RHS) @@ -329,16 +328,15 @@ GatherConstantSetNEs(Value *V, std::vector<ConstantInt*> &Values, if (Inst == 0) return 0; if (Inst->getOpcode() == Instruction::ICmp && - cast<ICmpInst>(Inst)->getPredicate() == ICmpInst::ICMP_NE) { + cast<ICmpInst>(Inst)->getPredicate() == ICmpInst::ICMP_NE) { if (ConstantInt *C = GetConstantInt(Inst->getOperand(1), TD)) { Values.push_back(C); return Inst->getOperand(0); } - if (ConstantInt *C = GetConstantInt(Inst->getOperand(0), TD)) { - Values.push_back(C); - return Inst->getOperand(1); - } - } else if (Inst->getOpcode() == Instruction::And) { + return 0; + } + + if (Inst->getOpcode() == Instruction::And) { if (Value *LHS = GatherConstantSetNEs(Inst->getOperand(0), Values, TD)) if (Value *RHS = GatherConstantSetNEs(Inst->getOperand(1), Values, TD)) if (LHS == RHS) |
