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DebugInfo: Simplify logic in DISubprogram::Verify(), NFC 

Simplify the logic in `DISubprogram::Verify()` by using the new debug
info hierarchy directly instead of the `DebugLoc` wrapper.

llvm-svn: 233563
This commit is contained in:
Duncan P. N. Exon Smith 2015-03-30 17:06:38 +00:00
parent 894b1e385c
commit 215e7edfe0
1 changed files with 8 additions and 13 deletions
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21
llvm/lib/IR/DebugInfo.cpp
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@ -343,24 +343,19 @@ bool DISubprogram::Verify() const {
if (auto *F = getFunction()) {
for (auto &BB : *F) {
for (auto &I : BB) {
DebugLoc DL = I.getDebugLoc();
if (DL.isUnknown())
MDLocation *DL =
cast_or_null<MDLocation>(I.getDebugLoc().getAsMDNode());
if (!DL)
continue;
MDNode *Scope = nullptr;
MDNode *IA = nullptr;
// walk the inlined-at scopes
while ((IA = DL.getInlinedAt()))
DL = DebugLoc::getFromDILocation(IA);
DL.getScopeAndInlinedAt(Scope, IA);
while (MDLocation *IA = DL->getInlinedAt())
DL = IA;
MDScope *Scope = DL->getScope();
if (!Scope)
return false;
assert(!IA);
while (!DIDescriptor(Scope).isSubprogram()) {
DILexicalBlockFile D(Scope);
Scope = D.isLexicalBlockFile()
? D.getScope()
: DebugLoc::getFromDILexicalBlock(Scope).getScope();
while (!isa<MDSubprogram>(Scope)) {
Scope = cast<MDLexicalBlockBase>(Scope)->getScope();
if (!Scope)
return false;
}