Florian Hahn comments

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                                            Florian Hahn

False negative for function with loop, only fails with sufficiently large unroll factor.

I see, thanks! A warning certainly sounds very helpful :)

False negative with compare of GEPs

Thanks for the explanation!

Excessive loop unrolling

mentioned in issue llvm/llvm-bugzilla-archive#44593

I think the specific problem here (excessive unrolling of vector loops) can be addressed relatively easily compared to excessive unrolling in LLVM in general. LLVM's loop vectorizer already tries to...

[AArch64] Generate sqdmlal

IICU there's a candidate patch: https://reviews.llvm.org/D131700

InstructionCombine error when monolithic LTO used

Could you clarify what the issue is? The fact that the call to `f()` is removed?

InstructionCombine error when monolithic LTO used

@markschimmel would it be possible to extract the LLVM IR module before instcombine removes the call, e.g. using `-mllvm -print-before=instcombine -mllvm -print-module-scope`? Depending on what linker you use you may...

Dead Code Elimination Regression at -Oz (trunk vs. 13.0.1)

@hyeongyukim any chance you could take a look as this has been bisected to one of your changes?

[IndVars] Simple IR test crashes with "PHI node has multiple entries for the same basic block with different incoming values!"

I put up a patch that should help to avoid constructing invalid PHIs in the first place: https://reviews.llvm.org/D132704

LLVM/Clang got super slow when it got compiled with Polly

> For about a week or so, I've noticed a huge slowdown in compilation speed of LLVM/Clang when Could you confirm this is a recent regression on `main`? Would it...