Just FYI. This test is just bogus and fixing it might be simple as using -fsanitize=undefined to check at runtime there is no undefined behavior being hit.

In this case even if we do the comparison in `signed` and do the negate in `unsigned` types. we can still remove the negate in this case since we know the only value that will be still negative in that branch is LONG_MIN. So my patch just simplifies the inner comparison to that instead of `a < 0` and then be able to remove the neg.

Someone else will have to fix the testcase since it is a testcase issue ...

________________________________________ From: ci_notify@linaro.org ci_notify@linaro.org Sent: Friday, September 1, 2023 3:07 PM To: Andrew Pinski Subject: [EXT] [Linaro-TCWG-CI] 2 patches in gcc: FAIL: 1 regressions

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---------------------------------------------------------------------- Dear contributor, our automatic CI has detected problems related to your patch(es). Please find some details below. If you have any questions, please follow up on linaro-toolchain@lists.linaro.org mailing list.

In CI config tcwg_gcc_check/master-aarch64 after:

| 2 patches in gcc | Patchwork URL: https://urldefense.proofpoint.com/v2/url?u=https-3A__patchwork.sourceware.or... | 504821491ff VR-VALUES: Rewrite test_for_singularity using range_op_handler | f6d1540c3e0 VR-VALUES: Rename op0/op1 to op1/op2 for test_for_singularity | ... applied on top of baseline commit: | b0d75f7d3bb libstdc++: Fix debug-mode tests for constexpr algorithms

FAIL: 1 regressions

regressions.sum: === gcc tests ===

Running gcc:gcc.target/aarch64/aarch64.exp ... FAIL: gcc.target/aarch64/vnegd_s64.c scan-assembler-times neg\tx[0-9]+, x[0-9]+ 1

=== Results Summary ===

-----------------8<--------------------------8<--------------------------8<-------------------------- The information below can be used to reproduce a debug environment:

Current build : https://urldefense.proofpoint.com/v2/url?u=https-3A__ci.linaro.org_job_tcwg-... Reference build : https://urldefense.proofpoint.com/v2/url?u=https-3A__ci.linaro.org_job_tcwg-...