c/10308: gcc 3.2.2 crashes with provided code snippet with -O -fgcse or -O2

c/10308: gcc 3.2.2 crashes with provided code snippet with -O -fgcse or -O2

[jberlin]

>Number:         10308
>Category:       c
>Synopsis:       gcc 3.2.2 crashes with provided code snippet with -O -fgcse or -O2
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    unassigned
>State:          open
>Class:          ice-on-illegal-code
>Submitter-Id:   net
>Arrival-Date:   Fri Apr 04 12:36:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     Jonas Berlin
>Release:        gcc-3.2.2
>Organization:
>Environment:
CFLAGS=-march=athlon-tbird -pipe -mmmx -m3dnow -momit-leaf-frame-pointer
i686-pc-linux-gnu
>Description:
I had a bug in my code, which caused gcc to crash. I tried my best at creating the smallest piece of source that still crashes gcc. I added some comments in the source indicating what I discovered during testing..

I haven't been able to reproduce the bug with valid code.
>How-To-Repeat:
Compile with
  gcc -O2 -c gcc-bug.c
or
  gcc -O -fgcse -c gcc-bug.c

I provided two separate code chunks that cause gcc to crash. Add -DOTHER_CASE to the compile command to test with the other chunk.
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
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