aprantl added inline comments.
================
Comment at: lib/CodeGen/CGDebugInfo.cpp:4537
+ CGM.getLangOpts().Optimize) {
+ for (auto &SP : DeclCache) {
+ auto *D = SP.first;
----------------
djtodoro wrote:
> aprantl wrote:
> > Just looking at the type declarations in CGDebugInfo.h: Why not iterate
> > over the `SPCache` directly? Shouldn't that contain all Function
> > declarations only?
> I tried it, but `SPCache` is empty at this point.
Where is it emptied? Just grepping through CGDebugInfo did not make this
obvious to me.
================
Comment at: lib/CodeGen/CGDebugInfo.cpp:3885
+ if (CGM.getCodeGenOpts().EnableDebugEntryValues &&
+ CGM.getLangOpts().Optimize && ArgNo) {
+ if (auto *PD = dyn_cast<ParmVarDecl>(VD))
----------------
We shouldn't query CGM.getLangOpts().Optimize. If we don't want this to happen
at -O0, we shouldn't set EnableDebugEntryValues at a higher level (Driver,
CompilerInvocation, ...) ..Otherwise inevitably someone will query one but not
the other and things will go out of sync.
================
Comment at: lib/CodeGen/CGDebugInfo.cpp:4535
DBuilder.retainType(cast<llvm::DIType>(MD));
+ if (CGM.getCodeGenOpts().EnableDebugEntryValues &&
----------------
Please add either a top-level comment about what this block is doing or perhaps
factor this out into a descriptively named static function.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D58035/new/
https://reviews.llvm.org/D58035
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