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Re: [PATCH][X86] Fix rounding pattern similar to PR73350

From: Uros Bizjak <ubizjak at gmail dot com>
To: "Koval, Julia" <julia dot koval at intel dot com>
Cc: Richard Biener <richard dot guenther at gmail dot com>, Jakub Jelinek <jakub at redhat dot com>, "H.J. Lu" <hjl dot tools at gmail dot com>, GCC Patches <gcc-patches at gcc dot gnu dot org>, Kirill Yukhin <kirill dot yukhin at gmail dot com>
Date: Fri, 16 Jun 2017 09:05:00 +0200
Subject: Re: [PATCH][X86] Fix rounding pattern similar to PR73350
Authentication-results: sourceware.org; auth=none
References: <4E89A029A0F8D443B436A5167BA3C53F19956843@IRSMSX101.ger.corp.intel.com> <CAMe9rOr_ij4cU+M1RjLA7Um30bpm_cwOrQxnhqQj9_kJpB9taw@mail.gmail.com> <4E89A029A0F8D443B436A5167BA3C53F199568BF@IRSMSX101.ger.corp.intel.com> <CAMe9rOpDZRcsFLnTvR9Qt79xZC87cppj6ovUJ3XvWGe-PrUZ_Q@mail.gmail.com> <20170612161809.GD2099@tucnak> <4E89A029A0F8D443B436A5167BA3C53F199568EA@IRSMSX101.ger.corp.intel.com> <CAFiYyc2rgUw4sK3FvzFmmSXwy+cqywoqjWhV18jUhSSjdkah7g@mail.gmail.com> <4E89A029A0F8D443B436A5167BA3C53F19956B03@IRSMSX101.ger.corp.intel.com> <CAFULd4ZXXYbPjgoO1_QY-Z+uuszMJfg=ZyF6GX2kZsrfXGVFuw@mail.gmail.com> <4E89A029A0F8D443B436A5167BA3C53F199572AE@IRSMSX101.ger.corp.intel.com>

On Fri, Jun 16, 2017 at 8:46 AM, Koval, Julia <julia.koval@intel.com> wrote:
> Hi,
>
> This test hangs on avx512er, maybe that's why:
>> According to POSIX, the behavior of a process is undefined after it ignores a SIGFPE, SIGILL, or SIGSEGV signal that was not generated by kill(2) or raise(3).
>
> And volatile make it work even without a patch(r1 and r2 are not combined then).
>
> Added other changes.

The testcase LGTM. I'll leave the final approval to Kirill.

Uros.

Follow-Ups:
- Re: [PATCH][X86] Fix rounding pattern similar to PR73350
  - From: Kirill Yukhin

References:
- [PATCH][X86] Fix rounding pattern similar to PR73350
  - From: Koval, Julia
- Re: [PATCH][X86] Fix rounding pattern similar to PR73350
  - From: H.J. Lu
- RE: [PATCH][X86] Fix rounding pattern similar to PR73350
  - From: Koval, Julia
- Re: [PATCH][X86] Fix rounding pattern similar to PR73350
  - From: H.J. Lu
- Re: [PATCH][X86] Fix rounding pattern similar to PR73350
  - From: Jakub Jelinek
- RE: [PATCH][X86] Fix rounding pattern similar to PR73350
  - From: Koval, Julia
- Re: [PATCH][X86] Fix rounding pattern similar to PR73350
  - From: Richard Biener
- RE: [PATCH][X86] Fix rounding pattern similar to PR73350
  - From: Koval, Julia
- Re: [PATCH][X86] Fix rounding pattern similar to PR73350
  - From: Uros Bizjak
- RE: [PATCH][X86] Fix rounding pattern similar to PR73350
  - From: Koval, Julia

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