[PATCH] D116821: [DebugInfo][InstrRef] Move instr-ref controlling flag out of TargetOptions

[Martin Storsjö via Phabricator via llvm-commits]

mstorsjo added subscribers: aganea, rnk.
mstorsjo added a comment.

In D116821#3261109 <https://reviews.llvm.org/D116821#3261109>, @mstorsjo wrote:

> I ran into a regression with this patch, which triggers the error "fatal error: error in backend: unknown codeview register ST0" on code that built fine before that.
>
> Here's a reduced reproducer:
>
>   $ cat dither.c 
>   a() {
>     long double b;
>     asm volatile("" : "=t"(b));
>   }
>   $ clang -target x86_64-w64-mingw32 -c -O2 -g -gcodeview dither.c 
>   fatal error: error in backend: unknown codeview register ST0
>   PLEASE submit a bug report to https://github.com/llvm/llvm-project/issues/ and include the crash backtrace, preprocessed source, and associated run script.
>   Stack dump:
>   0.	Program arguments: bin/clang -target x86_64-w64-mingw32 -c -O2 -g -gcodeview dither.c
>   1.	<eof> parser at end of file
>   2.	Code generation
>   3.	Running pass 'Function Pass Manager' on module 'dither.c'.
>   4.	Running pass 'X86 Assembly Printer' on function '@a'

Do @rnk or @aganea have any clue about this?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D116821/new/

https://reviews.llvm.org/D116821