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optimization/6408: -O3 causes out-of-range relative reference in assembler
- From: piilonen at vt dot edu
- To: gcc-gnats at gcc dot gnu dot org
- Date: Mon, 22 Apr 2002 12:19:53 -0400 (EDT)
- Subject: optimization/6408: -O3 causes out-of-range relative reference in assembler
>Number: 6408
>Category: optimization
>Synopsis: -O3 causes out-of-range relative reference in assembler
>Confidential: no
>Severity: serious
>Priority: low
>Responsible: unassigned
>State: open
>Class: rejects-legal
>Submitter-Id: net
>Arrival-Date: Mon Apr 22 09:26:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Leo Piilonen
>Release: 3.0
>Organization:
Dept of Physics, Virginia Tech
>Environment:
System: SunOS epsilon.phys.vt.edu 5.8 Generic_108528-13 sun4u sparc SUNW,Ultra-5_10
Architecture: sun4
host: sparc-sun-solaris2.8
build: sparc-sun-solaris2.8
target: sparc-sun-solaris2.8
configured with: ../configure
>Description:
on stack return after a function call, stack pointer (?) register %o7
is cleaned up with the following line in the assembler code:
add %o7, (.LL8312-.-4), %o7
when compiled with optimization -O3. The constant happens to be
outside the legal range of -4096 to +4095, so the assembler croaks.
>How-To-Repeat:
>Fix:
compile with -O2
>Release-Note:
>Audit-Trail:
>Unformatted:
Severity: serious