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optimization/8300: ICE in gen_reg_rtx, at emit-rtl.c:662
- From: rschiele at uni-mannheim dot de
- To: gcc-gnats at gcc dot gnu dot org
- Cc: tneumann at pi3 dot informatik dot uni-mannheim dot de
- Date: 21 Oct 2002 13:04:31 -0000
- Subject: optimization/8300: ICE in gen_reg_rtx, at emit-rtl.c:662
- Reply-to: rschiele at uni-mannheim dot de
>Number: 8300
>Category: optimization
>Synopsis: ICE in gen_reg_rtx, at emit-rtl.c:662
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: ice-on-legal-code
>Submitter-Id: net
>Arrival-Date: Mon Oct 21 06:06:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Robert Schiele
>Release: 3.2.1 20021020 (prerelease)
>Organization:
>Environment:
System: SunOS manray 5.8 Generic_108528-14 sun4u sparc SUNW,Ultra-4
Architecture: sun4
host: sparc-sun-solaris2.8
build: sparc-sun-solaris2.8
target: sparc-sun-solaris2.8
configured with: /home/schiele/gcccvs/gcc.gcc-3_2-branch/configure --enable-threads=posix --prefix=/opt/Pkg/SunOS/gcc321 --enable-languages=c,c++,f77,objc --disable-libgcj --with-gxx-include-dir=/opt/Pkg/SunOS/gcc321/include/g++ --with-system-zlib --enable-shared sparc-sun-solaris2.8
>Description:
The attached code results in an ICE on both, sparc-sun-solaris2.8 and sparc64-sun-solaris2.8 when compiled with optimizations turned on. This does _not_ happen in sparc-*-linux.
Note: This is a regression to 2.95.3!
>How-To-Repeat:
gcc -O ice.i
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: text/plain; name="ice.i"
Content-Disposition: inline; filename="ice.i"
void a() {
double b;
int c = *((int*)&b) && (*(&c + 1) = 0);
}