[PATCH] D101342: [SelectionDAG][Mips][PowerPC][RISCV][WebAssembly] Teach computeKnownBits/ComputeNumSignBits about atomics

Thu May 13 03:27:33 PDT 2021

stefanp added a comment.

In D101342#2754174 <https://reviews.llvm.org/D101342#2754174>, @jrtc27 wrote:

> In D101342#2754160 <https://reviews.llvm.org/D101342#2754160>, @stefanp wrote:
>
>> Hi @jrtc27
>>
>> I apologize but we have not been able to get to the bottom of this quickly. As a result we have pulled the change with:
>>
>>   commit 8d37411e48202b490c62ee3548df4b90f5974e12 (HEAD -> main, origin/main, origin/HEAD)
>>   Author: Stefan Pintilie <stefanp at ca.ibm.com>
>>   Date:   Wed May 12 09:42:09 2021 -0500
>>   
>>       Revert "[SelectionDAG][Mips][PowerPC][RISCV][WebAssembly] Teach computeKnownBits/ComputeNumSignBits about atomics"
>>       
>>       This reverts commit 6c80361b8474535852afb2f7201370fb5f410091.
>>       Breaks PowerPC Big Endian buildbots.
>>
>> I will keep you up to date as we have more information.
>> I have reopened this review.
>
> I have access to big-endian PowerPC hardware. Is the reproducer as simple as running the compiler-rt test suite?

To reproduce the issue I use a stage2 bootstrap build and then run `ninja check-asan`. Check test will not finish.

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D101342/new/

https://reviews.llvm.org/D101342