[LLVMdev] Bug in LowerIntrinsics::PerformDefaultLowering ?
David Tweed
David.Tweed at arm.com
Thu Oct 18 05:45:43 PDT 2012
|I noticed that in line 288-289 of lib/CodeGen/GCStrategy.cpp there is a
|loop:
|> for (Function::iterator BB = F.begin(), E = F.end(); BB != E; ++BB) {
|> for (BasicBlock::iterator II = BB->begin(), E = BB->end();
|> II != E;) {
|E is used both for F.end() and for BB->end(). Is this intended?
Note that it's also being declared in the for header, so the inner E is shadowing the outer E (ie, they're separate variables). So it's not wrong per se, although I always compile with -Wshadow because problems when this happens are _really_ nasty to track down.
Cheers,
Dave
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