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Clean up uses of switch instructions so they are not dependent on the operand ordering. Patch by Stepan Dyatkovskiy.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140803 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eli Friedman
2011-09-29 20:21:17 +00:00
parent 0066f9290e
commit bb5a7442e3
8 changed files with 61 additions and 33 deletions
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4
lib/Transforms/Utils/LowerSwitch.cpp
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@@ -277,11 +277,11 @@ void LowerSwitch::processSwitchInst(SwitchInst *SI) {
BasicBlock *CurBlock = SI->getParent();
BasicBlock *OrigBlock = CurBlock;
Function *F = CurBlock->getParent();
Value *Val = SI->getOperand(0); // The value we are switching on...
Value *Val = SI->getCondition(); // The value we are switching on...
BasicBlock* Default = SI->getDefaultDest();
// If there is only the default destination, don't bother with the code below.
if (SI->getNumOperands() == 2) {
if (SI->getNumCases() == 1) {
BranchInst::Create(SI->getDefaultDest(), CurBlock);
CurBlock->getInstList().erase(SI);
return;