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Failures on various archs for gcc 12 #483

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blapie opened this issue Nov 15, 2023 · 2 comments
Open

Failures on various archs for gcc 12 #483

blapie opened this issue Nov 15, 2023 · 2 comments
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arch bug test

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@blapie
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blapie commented Nov 15, 2023

As reported in #477 some failures are observed with gcc12.

aarch64, ppc64el, and s390x fail with GCC 12 with the following error:

tanf denormal/nonnumber test : arg = -0, test = 0, correct = -0

We are able to reproduce locally on aarch64 (native build and test run).
@blapie blapie mentioned this issue Nov 15, 2023
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blapie pushed a commit that referenced this issue Nov 20, 2023
@luhenry @GlassOfWhiskey @ericlove
Integrate RISC-V support (#477)
cea4434 
* Add support for the RISC-V Vector ISA
- RISC-V V 1.0 with (latest) intrinsics >=0.12.
- Enable bit manip extensions on RISC-V.
- Add RVVM*NOFMA configurations for determinism/bit-reproducibility across all architectures.

* Not supported yet
- DFT, QUAD, and GNUABI.
- Only upcoming versions of gcc (14+) have support for latest intrinsics. Will be supported when available in release version of gcc.

* CI Updates
- Add riscv64 CI on GitHub Actions.
- Add gcc (11 - #483) and llvm (17) builds on all architectures.
- Disable a few failing test variants, tracked in #484 and #485.
- Use same compiler versions across all builds.
- Add sysroot for dependencies.
- Nit: Reorder build-cross targets to group gcc/llvm per-arch together.

---------

Co-authored-by: GlassOfWhiskey <iacopo.c92@gmail.com>
Co-authored-by: Eric Love <eric.love@sifive.com>
@blapie
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blapie commented Nov 23, 2023

We are looking into this. I believe this was already reported in #439.

@blapie
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blapie commented Nov 23, 2023

First observations:

  • AFAICT only scalar tanf (u35) seems to fail, and only on the test tan(-0) == -0, mismatch in sign.
  • The issue does not occur when compiling for AArch64 with -DFORCE_AAVPCS=ON.

@blapie blapie mentioned this issue Mar 15, 2024
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@luhenry luhenry mentioned this issue May 21, 2024
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