[PATCH] D63518: BitStream reader: propagate errors

[Francis Visoiu Mistrih via Phabricator via cfe-commits]

thegameg added inline comments.


================
Comment at: llvm/include/llvm/Bitcode/BitstreamReader.h:489
 
   bool ReadBlockEnd() {
     if (BlockScope.empty()) return true;
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jfb wrote:
> thegameg wrote:
> > Any reason why this doesn't return `Error`?
> I'm not sure it's really an error: it goes to the end of the block either because it's empty, or because it pops the scope (which doesn't error either). It might be erroneously used, but I'm not sure we should make it an error right now. WDYT?
Yeah, I'm not sure either... `BitstreamCursor::advance` seems to return `BitstreamEntry::getError();` if this function fails after it encountered an `END_BLOCK`, and the other users seem to return things like `SDError::InvalidDiagnostics` or `Cursor::BadBlock`.

I guess for now, it's fine as it is.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D63518/new/

https://reviews.llvm.org/D63518