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DebugInfo: Rewrite llvm::getDISubprogram(), NFC

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Simplify implementation of `llvm::getDISubprogram()`.  I might go
through and see how difficult it is to update the users, since this
function doesn't really seem necessary anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233662 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith
2015-03-31 02:06:28 +00:00
parent a04d764104
commit 81a8d62b94
1 changed files with 3 additions and 11 deletions
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14
lib/IR/DebugInfo.cpp
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@@ -461,17 +461,9 @@ DIVariable llvm::cleanseInlinedVariable(MDNode *DV, LLVMContext &VMContext) {
} }
DISubprogram llvm::getDISubprogram(const MDNode *Scope) { DISubprogram llvm::getDISubprogram(const MDNode *Scope) {
DIDescriptor D(Scope); if (auto *LocalScope = dyn_cast_or_null<MDLocalScope>(Scope))
if (D.isSubprogram()) return LocalScope->getSubprogram();
return DISubprogram(Scope); return nullptr;
if (D.isLexicalBlockFile())
return getDISubprogram(DILexicalBlockFile(Scope).getContext());
if (D.isLexicalBlock())
return getDISubprogram(DILexicalBlock(Scope).getContext());
return DISubprogram();
} }
DISubprogram llvm::getDISubprogram(const Function *F) { DISubprogram llvm::getDISubprogram(const Function *F) {