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Start using the nicer terminator auto-insertion API

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10111 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2003-11-20 18:25:24 +00:00
parent adbc0b5287
commit f8485c6434
12 changed files with 32 additions and 46 deletions
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lib/Transforms/Utils/UnifyFunctionExitNodes.cpp
+5 -5
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@@ -61,13 +61,13 @@ bool UnifyFunctionExitNodes::runOnFunction(Function &F) {
UnwindBlock = UnwindingBlocks.front();
} else {
UnwindBlock = new BasicBlock("UnifiedUnwindBlock", &F);
UnwindBlock->getInstList().push_back(new UnwindInst());
new UnwindInst(UnwindBlock);
for (std::vector<BasicBlock*>::iterator I = UnwindingBlocks.begin(),
E = UnwindingBlocks.end(); I != E; ++I) {
BasicBlock *BB = *I;
BB->getInstList().pop_back(); // Remove the return insn
BB->getInstList().push_back(new BranchInst(UnwindBlock));
new BranchInst(UnwindBlock, 0, 0, BB);
}
}
@@ -91,10 +91,10 @@ bool UnifyFunctionExitNodes::runOnFunction(Function &F) {
// If the function doesn't return void... add a PHI node to the block...
PN = new PHINode(F.getReturnType(), "UnifiedRetVal");
NewRetBlock->getInstList().push_back(PN);
NewRetBlock->getInstList().push_back(new ReturnInst(PN));
new ReturnInst(PN, NewRetBlock);
} else {
// If it returns void, just add a return void instruction to the block
NewRetBlock->getInstList().push_back(new ReturnInst());
new ReturnInst(0, NewRetBlock);
}
// Loop over all of the blocks, replacing the return instruction with an
@@ -109,7 +109,7 @@ bool UnifyFunctionExitNodes::runOnFunction(Function &F) {
if (PN) PN->addIncoming(BB->getTerminator()->getOperand(0), BB);
BB->getInstList().pop_back(); // Remove the return insn
BB->getInstList().push_back(new BranchInst(NewRetBlock));
new BranchInst(NewRetBlock, 0, 0, BB);
}
ReturnBlock = NewRetBlock;
return true;