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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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9
gen/llvmhelpers.cpp
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@@ -186,8 +186,11 @@ void DtoGoto(Loc* loc, Identifier* target, EnclosingHandler* enclosinghandler)
if(lblstmt->asmLabel)
error("cannot goto into inline asm block", loc->toChars());
if (lblstmt->llvmBB == NULL)
lblstmt->llvmBB = llvm::BasicBlock::Create("label", gIR->topfunc());
// find target basic block
std::string labelname = target->toChars();
llvm::BasicBlock*& targetBB = gIR->func()->labelToBB[labelname];
if (targetBB == NULL)
targetBB = llvm::BasicBlock::Create("label", gIR->topfunc());
// find finallys between goto and label
EnclosingHandler* endfinally = enclosinghandler;
@@ -202,7 +205,7 @@ void DtoGoto(Loc* loc, Identifier* target, EnclosingHandler* enclosinghandler)
// emit code for finallys between goto and label
DtoEnclosingHandlers(enclosinghandler, endfinally);
llvm::BranchInst::Create(lblstmt->llvmBB, gIR->scopebb());
llvm::BranchInst::Create(targetBB, gIR->scopebb());
}
/****************************************************************************************/