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optimization/10402: [3.3/3.4 regression] [i486] ICE in merge_assigned_reloads, at reload1.c:6134
- From: rschiele at uni-mannheim dot de
- To: gcc-gnats at gcc dot gnu dot org
- Cc: shensche at kodeaffe dot de
- Date: 14 Apr 2003 16:51:15 -0000
- Subject: optimization/10402: [3.3/3.4 regression] [i486] ICE in merge_assigned_reloads, at reload1.c:6134
- Reply-to: rschiele at uni-mannheim dot de
>Number: 10402
>Category: optimization
>Synopsis: [3.3/3.4 regression] [i486] ICE in merge_assigned_reloads, at reload1.c:6134
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: ice-on-legal-code
>Submitter-Id: net
>Arrival-Date: Mon Apr 14 16:56:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator: Robert Schiele
>Release: 3.3 20030413 (prerelease), 3.4 20030413 (experimental)
>Organization:
>Environment:
System: Linux schiele 2.4.20-4GB-athlon #1 Mon Mar 17 17:56:47 UTC 2003 i686 unknown unknown GNU/Linux
Architecture: i686
host: i486-suse-linux-gnu
build: i486-suse-linux-gnu
target: i486-suse-linux-gnu
configured with: /local/src/gcc/configure --enable-threads=posix --prefix=/local/inst/gcc34 --enable-languages=c,c++,f77,objc --disable-checking --disable-libgcj --with-gxx-include-dir=/local/inst/gcc34/include/g++ --with-system-zlib --enable-shared --enable-__cxa_atexit i486-suse-linux
>Description:
When compiling the following code with optimization turned on, I get an ICE in merge_assigned_reloads, at reload1.c:6134:
void a()
{
struct { long b; } *c, *d, *e;
c = e;
h();
int f;
asm volatile("" :"=S" (f), "=D" (f) :);
asm("" : "=m" (c->b), "=b" (c) : "m" (d->b), "a" (c), "d" (d), "b" (c));
}
I am not absolutely sure, whether this code is legal, but I can't see why it should not.
>How-To-Repeat:
gcc -O -c ice.i
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted: