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Re: c/7284: incorrectly simplifies leftshift followed by signed power-of-2 division
- From: nathan at gcc dot gnu dot org
- To: algrant at acm dot org, gcc-bugs at gcc dot gnu dot org, gcc-prs at gcc dot gnu dot org, nobody at gcc dot gnu dot org
- Date: 12 Jul 2002 14:12:01 -0000
- Subject: Re: c/7284: incorrectly simplifies leftshift followed by signed power-of-2 division
- Reply-to: nathan at gcc dot gnu dot org, algrant at acm dot org, gcc-bugs at gcc dot gnu dot org, gcc-prs at gcc dot gnu dot org, nobody at gcc dot gnu dot org, gcc-gnats at gcc dot gnu dot org
Synopsis: incorrectly simplifies leftshift followed by signed power-of-2 division
State-Changed-From-To: open->closed
State-Changed-By: nathan
State-Changed-When: Fri Jul 12 07:12:01 2002
State-Changed-Why:
not a bug. for signed types, if 'n << c' overflows, the
behaviour is undefined.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7284