https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120055
Bug ID: 120055
Summary: ice in convert_arguments with recent compiler
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
Created attachment 61264
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61264&action=edit
C source code
For the attached C code, recent gcc trunk does this:
foundBugs $ ../results/bin/gcc -c -w -std=gnu99 bug1098.c
/home/dcb40b/rpmbuild/BUILD/cqueues-rel-20200603/src/lib/dns.c: In function
‘dns
_rr_i_start’:
/home/dcb40b/rpmbuild/BUILD/cqueues-rel-20200603/src/lib/dns.c:2810:17:
internal
compiler error: Segmentation fault
2810 | if (i->sort(&rr, &r0, i, P) < 0)
| ^~
0x23a594e ???
/home/dcb40b/gcc/working/gcc/../../trunk/gcc/diagnostic-global-context.c
c:517
0xf8d169 ???
/home/dcb40b/gcc/working/gcc/../../trunk/gcc/toplev.cc:321
0x7bef88 tree_check
../../trunk/gcc/tree.h:3979
0x7bef88 fndecl_built_in_p
../../trunk/gcc/tree.h:6922
0x7bef88 convert_arguments
/home/dcb40b/gcc/working/gcc/../../trunk/gcc/c/c-typeck.cc:4340
The bug seems to have started in the last few days:
foundBugs $ ../results.20250430.ubsan/bin/gcc -c -w -std=gnu99 bug1098.c
foundBugs $ ../results.20250501.ubsan/bin/gcc -c -w -std=gnu99 bug1098.c
/home/dcb40b/rpmbuild/BUILD/cqueues-rel-20200603/src/lib/dns.c: In function
‘dns
_rr_i_start’:
/home/dcb40b/rpmbuild/BUILD/cqueues-rel-20200603/src/lib/dns.c:2810:17:
internal
compiler error: Segmentation fault
Further:
foundBugs $ ../results.20250430.ubsan/bin/gcc -v 2>&1 | grep exp
gcc version 16.0.0 20250430 (experimental) (8709d6a17830c8a9)
foundBugs $ ../results.20250501.ubsan/bin/gcc -v 2>&1 | grep exp
gcc version 16.0.0 20250501 (experimental) (87c4460024dadef0)
foundBugs $
