[PATCH] D53765: [RFC prototype] Implementation of asm-goto support in LLVM

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

In D53765#1362744 <https://reviews.llvm.org/D53765#1362744>, @nickdesaulniers wrote:

> This looks like a codegen bug, from compiling more of the Linux kernel.  It seems that an optimization from `-O1` is causing the problem: https://github.com/ClangBuiltLinux/linux/issues/320#issuecomment-455435791.  I'm not sure how to help narrow it down further (which pass?).  The output is from `creduce` and I've narrowed down the set of flags to Clang.


You try using -opt-bisect-limit to narrow down the pass https://llvm.org/docs/OptBisect.html


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