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optimization/5844: Bad code generated for -O2 -mcpu=i586

From: hjl at gnu dot org
To: gcc-gnats at gcc dot gnu dot org
Date: 5 Mar 2002 20:21:07 -0000
Subject: optimization/5844: Bad code generated for -O2 -mcpu=i586
Reply-to: hjl at gnu dot org


>Number:         5844
>Category:       optimization
>Synopsis:       Bad code generated for -O2 -mcpu=i586
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    unassigned
>State:          open
>Class:          wrong-code
>Submitter-Id:   net
>Arrival-Date:   Tue Mar 05 12:26:01 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     hjl@gnu.org
>Release:        gcc version 3.1 20020227 (prerelease)
>Organization:
>Environment:
Linux/i386
>Description:
Wrong code is generated when -O2 -mcpu=i586 is used.
>How-To-Repeat:
Do

# gcc -O2 -mcpu=i586 bad.c -o bad
# bad
zsh: 20299 segmentation fault  ./bad
>Fix:
None
>Release-Note:
>Audit-Trail:
>Unformatted:
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Content-Disposition: attachment; filename="bad.c"

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