https://github.com/yoshijava/403.gcc

Patch for SPEC CPU2006 403.gcc
https://github.com/yoshijava/403.gcc

403 architecture benchmark bug c compiler cpu2006 gcc gnu gpl spec spec2006 specint2006

Last synced: 15 days ago
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Patch for SPEC CPU2006 403.gcc

• Host: GitHub
• URL: https://github.com/yoshijava/403.gcc
• Owner: yoshijava
• License: gpl-2.0
• Created: 2020-12-11T02:57:26.000Z (almost 4 years ago)
• Default Branch: main
• Last Pushed: 2020-12-16T17:24:20.000Z (almost 4 years ago)
• Last Synced: 2024-03-19T04:20:50.179Z (8 months ago)
• Topics: 403, architecture, benchmark, bug, c, compiler, cpu2006, gcc, gnu, gpl, spec, spec2006, specint2006
• Homepage:
• Size: 129 KB
• Stars: 2
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Patch for SPEC CPU2006 403.gcc

This bug is due to wrong usage of function pointer, and happened to work on most architecture; however, it fails on iPhone and some other architectures with different calling conventions, as the discussion in the mailing list of GNU GCC. More details can be found at: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=12081

# Mail to SPEC.org

```

SPEC CPU version info:

Version summary:

    CPU2006 version: 1.2

 Benchmarks version: 118

      Tools version: 118

    runspec version: 6674 ($Id: runspec 6674 2011-07-21 16:47:54Z CloyceS $)

I would like to propose a change to benchmark 403.gcc

According to the gnu gcc mailing list, this is a known bug solved in gcc version >= 4.8.

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=12081

This problem occurs to me when porting this benchmark to iPhone using xcode toolchain:

Apple clang version 12.0.0 (clang-1200.0.32.27)

Target: x86_64-apple-darwin19.6.0

Thread model: posix

The solution posted in gnu's mailing list is based on c++ technique, so not applicable for 403.gcc which is based on gcc 3.2

Attached please find my own handcrafted patch.

```

# Notes

* 403.gcc source code falls under the GPLv2

* Any results using this patch would not be official SPEC metrics, please see www.spec.org/fairuse.html