Bug 51477
| Summary: | gcc crash: compiler error in make_edges, at flow.c:1071 | ||
|---|---|---|---|
| Product: | [Retired] Red Hat Linux | Reporter: | wcbrown |
| Component: | gcc | Assignee: | Jakub Jelinek <jakub> |
| Status: | CLOSED NEXTRELEASE | QA Contact: | David Lawrence <dkl> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.1 | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i686 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2004-10-05 18:37:00 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Please provide preprocessed source of the file which triggers this, together with gcc options used. You can e.g. append -save-temps to gcc options, run it (and recheck it really failed that way), then you'll see an *.i or *.ii file (depending whether it is C or C++). Please attach it here. Otherwise there is nothing that can be done about it. The below code crashes with -O2 or greater opimization level. The presence of
the label
in that position seems to trigger it ... move the label anywhere else and it
compiles fine.
void f(int n)
{
bugcauser:
if (n != 0)
f(n-1);
return;
}
This should be fixed by http://gcc.gnu.org/ml/gcc-patches/2001-04/msg00903.html which I'll include in gcc-2.96-97. Actually gcc-2.96-98. gcc-2.96 is too old. Its release cycle was finished long ago. Also Jakub wrote about fixing the bug in gcc-2.96-98. I also can confirm that the bug is absent in gcc-3.2. Therefore I am closing the case. If it is still important we could reopen it. sy |
From Bugzilla Helper: User-Agent: Mozilla/4.7 [en] (X11; I; SunOS 5.8 sun4u) Description of problem: gcc crashes with the error message: Internal compiler error in make_edges, at flow.c:1071 The line number from my source is the closing } of the last function defined. This file and the program to which it belongs have been successfully compiled on a variety of systems including other linux/gcc distributions. How reproducible: Always Steps to Reproduce: 1. N/A 2. 3. Actual Results: N/A Expected Results: N/A Additional info: gcc crashes while compiling this function, which looks pretty unobjectionable to me. I don't have the source for gcc, so I can't speculate on what's going on with "make_edges" or "flow". I could provide the source, for the function but as I say there is nothing exotic about it. The source for the whole system is too big to just ship with a bug report.