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From: pthomas@suse.de To: gcc-gnats@gcc.gnu.org Cc: aj@suse.de, Ulrich.Weigand@de.ibm.com, HPENNER@de.ibm.com Subject: ada/6306: gcc on s390 gets ICE in verify_local_live_at_start, at flow.c:583 Date: Mon, 15 Apr 2002 06:26:00 -0000 [thread overview] Message-ID: <20020415132135.30584.qmail@sources.redhat.com> (raw) >Number: 6306 >Category: ada >Synopsis: gcc on s390 gets ICE in verify_local_live_at_start, at flow.c:583 >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: ice-on-legal-code >Submitter-Id: net >Arrival-Date: Mon Apr 15 06:26:01 PDT 2002 >Closed-Date: >Last-Modified: >Originator: pthomas@suse.de >Release: 3.1 20020408 (prerelease) >Organization: >Environment: s390-suse-linux >Description: gcc fails on IBM zSeries (s390) with: s390_bug_O3.c: In function `foo': s390_bug_O3.c:76: Internal compiler error in verify_local_live_at_start, at flow.c:583 This *only* happens when passed -O3. >How-To-Repeat: Compile the attached file with 'gcc -c -O3 390_bug_O3.c'. >Fix: >Release-Note: >Audit-Trail: >Unformatted: ----gnatsweb-attachment---- Content-Type: text/plain; name="s390_bug_O3.c" Content-Disposition: inline; filename="s390_bug_O3.c" unsigned long foo (unsigned long *rp, unsigned long *ap, int num, unsigned long w) { unsigned long c1 = 0; if (num <= 0) return (c1); while (num & ~3) { { unsigned long long t; t = (unsigned long long) w *(ap[0]) + (rp[0]) + (c1); (rp[0]) = (((unsigned long) (t)) & (0xffffffffL)); (c1) = (((unsigned long) ((t) >> 32)) & (0xffffffffL)); }; { unsigned long long t; t = (unsigned long long) w *(ap[1]) + (rp[1]) + (c1); (rp[1]) = (((unsigned long) (t)) & (0xffffffffL)); (c1) = (((unsigned long) ((t) >> 32)) & (0xffffffffL)); }; { unsigned long long t; t = (unsigned long long) w *(ap[2]) + (rp[2]) + (c1); (rp[2]) = (((unsigned long) (t)) & (0xffffffffL)); (c1) = (((unsigned long) ((t) >> 32)) & (0xffffffffL)); }; { unsigned long long t; t = (unsigned long long) w *(ap[3]) + (rp[3]) + (c1); (rp[3]) = (((unsigned long) (t)) & (0xffffffffL)); (c1) = (((unsigned long) ((t) >> 32)) & (0xffffffffL)); }; ap += 4; rp += 4; num -= 4; } if (num) { { unsigned long long t; t = (unsigned long long) w *(ap[0]) + (rp[0]) + (c1); (rp[0]) = (((unsigned long) (t)) & (0xffffffffL)); (c1) = (((unsigned long) ((t) >> 32)) & (0xffffffffL)); }; if (--num == 0) return c1; { unsigned long long t; t = (unsigned long long) w *(ap[1]) + (rp[1]) + (c1); (rp[1]) = (((unsigned long) (t)) & (0xffffffffL)); (c1) = (((unsigned long) ((t) >> 32)) & (0xffffffffL)); }; if (--num == 0) return c1; { unsigned long long t; t = (unsigned long long) w *(ap[2]) + (rp[2]) + (c1); (rp[2]) = (((unsigned long) (t)) & (0xffffffffL)); (c1) = (((unsigned long) ((t) >> 32)) & (0xffffffffL)); }; return c1; } return (c1); }
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