Bug 153268
| Summary: | gcc hangs while compiling src/lat_ops.c from lmbench-3.0-a4 | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Arenas Belon, Carlo Marcelo <carenas> |
| Component: | gcc | Assignee: | Jakub Jelinek <jakub> |
| Status: | CLOSED RAWHIDE | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | medium | ||
| Version: | rawhide | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | 4.0.0-1 | Doc Type: | Bug Fix |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2005-04-26 15:27:09 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: | |||
Should be fixed in gcc-4.0.0-1. |
From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7) Gecko/20040808 Firefox/0.9.3 Description of problem: while running : gcc -O -DRUSAGE -DHAVE_uint=1 -DHAVE_int64_t=1 -DHAVE_DRAND48 -o ../bin/x86_64-linux-gnu/lat_ops lat_ops.c ../bin/x86_64-linux-gnu/lmbench.a -lm the cc1 (/usr/libexec/gcc/x86_64-redhat-linux/4.0.0/cc1 -quiet -DRUSAGE -DHAVE_uint=1 -DHAVE_int64_t=1 -DHAVE_DRAND48 lat_ops.c -quiet -dumpbase lat_ops.c -mtune=k8 -auxbase lat_ops -O -o /tmp/ccblf70L.s) process eats 100% CPU but does nothing, leaving the generated assembler file incomplete as shown by the last 2 lines : xorl %edx, %ecx orl %ecx, %ed while trying to force a core dump through a segfault the culprit seems to be : lat_ops.c: In function 'do_integer_add': lat_ops.c:97: internal compiler error: Segmentation fault which corresponds to the following partially unrolled loop (including associated defines): static volatile uint64 use_result_dummy; void use_int(int result) { use_result_dummy += result; } struct _state { int N; int M; int K; double* data; }; #define TEN(a) a a a a a a a a a a #define HUNDRED(a) TEN(TEN(a)) void do_integer_add(iter_t iterations, void* cookie) { struct _state *pState = (struct _state*)cookie; register int a = pState->N + 57; register int b = pState->N + 31; while (iterations-- > 0) { HUNDRED(a += b; b -= a;) } use_int(a+b); } Version-Release number of selected component (if applicable): gcc-4.0.0-0.38 How reproducible: Always Steps to Reproduce: 1. wget http://cogent.dl.sourceforge.net/sourceforge/lmbench/lmbench-3.0-a4.tgz && tar -xvzf lmbench-3.0-a4.tgz 2. cd lmbench-3.0-a4 && make 3. Actual Results: cc1 hang Expected Results: compile should have finished or at least shown an error saying why it couldn't Additional info: