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[test-suite][mips] Fix compile options for tramp3d-v4 test

Authored by mstojanovic on Mar 20 2019, 2:08 PM.



The -mxgot flag was negatively effecting certain micromips builds. This patch narrows its use to to only mips64 targets.

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mstojanovic created this revision.Mar 20 2019, 2:08 PM

Generally the patch looks good. But when I remove -mxgot option completely and unconditionally and run LLVM test suite in both 32 and 64-bit modes, I did not see any new failures. I used both LLD and GNU BFD linkers. Could you check it? What tests and what configurations will fail?

This test will fail for mips64r6 n64 configurations with -O0 or -O1. I think those are the minimal requirements for reproducing the failure and adding other flags shouldn't have an effect on the result.

As for simplifying, I could maybe remove the -mcpu= part from the comparison. Do you think that would a nicer solution or does leaving the full flag give more context without effecting generality?

Thanks. I could reproduce the problem with the -O0 option. But I could reproduce the problem for both -mips64r2 and -mips64r6 flags. Is it true for you? If so, I would check for something like $(findstring -mabi=64, $(TARGET_FLAGS)).

Yes, I could also reproduce it on mips64r2. The patch is updated with -mabi=64.

This revision is now accepted and ready to land.Mar 24 2019, 11:26 AM
This revision was automatically updated to reflect the committed changes.
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