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[svn r374] Move label target basic block from AST to IRFunction. This is a first step to allowing labels to be emitted multiple times. (for instance within finally blocks)

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This commit is contained in:
Christian Kamm
2008-07-14 11:07:15 +02:00
parent 80ba763fda
commit 7e7ac3a6f7
5 changed files with 20 additions and 11 deletions
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16
gen/statements.cpp
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@@ -1033,16 +1033,20 @@ void LabelStatement::toIR(IRState* p)
}
else
{
std::string labelname = ident->toChars();
llvm::BasicBlock*& labelBB = p->func()->labelToBB[labelname];
llvm::BasicBlock* oldend = gIR->scopeend();
if (llvmBB)
llvmBB->moveBefore(oldend);
else
llvmBB = llvm::BasicBlock::Create("label", p->topfunc(), oldend);
if (labelBB != NULL) {
labelBB->moveBefore(oldend);
} else {
labelBB = llvm::BasicBlock::Create("label", p->topfunc(), oldend);
}
if (!p->scopereturned())
llvm::BranchInst::Create(llvmBB, p->scopebb());
llvm::BranchInst::Create(labelBB, p->scopebb());
p->scope() = IRScope(llvmBB,oldend);
p->scope() = IRScope(labelBB,oldend);
}
if (statement)