[llvm-dev] Clang 3.9.1 fails to build LLVM 11.0.0

[Keane, Erich via llvm-dev]

I manually reduced it by ~1/2: https://godbolt.org/z/TE91ad

Presumably The oddness is that the SmallDenseMap in ValueEnumerator AND the AlignedCharArrayUnion in SmallDenseMap are both necessary. To reproduce, but I can't imagine why that would be .

-----Original Message-----
From: Issam E. Maghni <issam.e.maghni at mailbox.org> 
Sent: Monday, October 26, 2020 1:06 PM
To: Keane, Erich <erich.keane at intel.com>; llvm-dev <llvm-dev at lists.llvm.org>
Subject: RE: [llvm-dev] Clang 3.9.1 fails to build LLVM 11.0.0

> Issam: Can you confirm that your copy of ValueEnumerator.h
> (/root/llvm-project-llvmorg-11.0.0/llvm/lib/Bitcode/Writer/ValueEnumer
> ator.h)
> line 100 is MDRange() = default; ?

I confirm. Here is the preprocessed compilation unit:
https://godbolt.org/z/fhTTWh

> As for bugs, you can go to bugs.llvm.org to report defects, though the 
> signup has a manual process required by one of the admins due to spam.

Ok, I will email bugs-admin at lists.llvm.org to signup.