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While inlining, clone llvm.dbg.func.start intrinsic and adjust

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llvm.dbg.region.end instrinsic. This nested llvm.dbg.func.start/llvm.dbg.region.end pair now enables DW_TAG_inlined_subroutine support in code generator.

llvm-svn: 69118
This commit is contained in:
Devang Patel
2009-04-15 00:17:06 +00:00
parent 0813c0c34c
commit 046bf624b9
3 changed files with 52 additions and 89 deletions
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10
llvm/lib/Transforms/Utils/CloneFunction.cpp
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@@ -24,6 +24,7 @@
#include "llvm/Support/Compiler.h"
#include "llvm/Transforms/Utils/ValueMapper.h"
#include "llvm/Analysis/ConstantFolding.h"
#include "llvm/Analysis/DebugInfo.h"
#include "llvm/ADT/SmallVector.h"
#include <map>
using namespace llvm;
@@ -233,10 +234,13 @@ void PruningFunctionCloner::CloneBlock(const BasicBlock *BB,
continue;
}
// Do not clone llvm.dbg.func.start and corresponding llvm.dbg.region.end.
// Do not clone llvm.dbg.region.end. It will be adjusted by the inliner.
if (const DbgFuncStartInst *DFSI = dyn_cast<DbgFuncStartInst>(II)) {
DbgFnStart = DFSI->getSubprogram();
continue;
if (DbgFnStart == NULL) {
DISubprogram SP(cast<GlobalVariable>(DFSI->getSubprogram()));
if (SP.describes(BB->getParent()))
DbgFnStart = DFSI->getSubprogram();
}
}
if (const DbgRegionEndInst *DREIS = dyn_cast<DbgRegionEndInst>(II)) {
if (DREIS->getContext() == DbgFnStart)