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Re: c/6893: gcc generates invalid code for x86 subarches.

From: Glen Nakamura <glen at imodulo dot com>
To: warp at debian dot org
Cc: gcc-gnats at gcc dot gnu dot org, gcc-bugs at gcc dot gnu dot org
Date: Sat, 1 Jun 2002 05:48:44 -1000
Subject: Re: c/6893: gcc generates invalid code for x86 subarches.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6893

Aloha,

Looks like the testcase you provided has an aliasing problem:
icolor = (int *) tmp;

Strict aliasing does not allow casting from (float *) to (int *)...
You will need to fix your code or compile w/ -fno-strict-aliasing.
See the GCC documentation on -fstrict-aliasing for more information.

Please check if your problem persists with the attached testcase.

- Glen Nakamura

Attachment: 6893.c
Description: Text document

Follow-Ups:
- Re: c/6893: gcc generates invalid code for x86 subarches.
  - From: Zephaniah E\. Hull

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