[llc/opt] Add an option to run all passes twice #6666
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This PR pulls the upstream change, [llc/opt] Add an option to run all passes twice (llvm/llvm-project@04464cf), into DXC. Here's the summary of the change: Lately, I have submitted a number of patches to fix bugs that only occurred when using the same pass manager to compile multiple modules (generally these bugs are failure to reset some persistent state). Unfortunately I don't think there is currently a way to test that from the command line. This adds a very simple flag to both llc and opt, under which the tools will simply re-run their respective pass pipelines using the same pass manager on (a clone of the same module). Additionally, we verify that both outputs are bitwise the same. Reviewers: yaron.keren This is for the test of this change (llvm/llvm-project@ef8761f) to fix #6659.
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adam-yang
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Jun 21, 2024
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This PR pulls the following upstream changes into DXC:
[llc/opt] Add an option to run all passes twice (llvm/llvm-project@04464cf)
[opt] Fix sanitizer complaints about r254774 (llvm/llvm-project@38707c4)
This is for the test of this change (llvm/llvm-project@ef8761f) to fix #6659.