https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106432
Bug ID: 106432
Summary: ice in range_on_edge, at gimple-range.cc:204
Product: gcc
Version: 12.0
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 53344
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53344&action=edit
C source code
The attached partially reduced C code does this with compiler flag -O3:
$ ../results.20220724.asan.ubsan/bin/gcc -c -O3 bug831.c 2>&1 | more
during GIMPLE pass: dom
/home/dcb36/rpmbuild/BUILD/petsc-3.16.3/petsc-3.16.3/src/ts/utils/dmplexlandau/p
lexland.c: In function ‘ProcessOptions’:
/home/dcb36/rpmbuild/BUILD/petsc-3.16.3/petsc-3.16.3/src/ts/utils/dmplexlandau/p
lexland.c:1418:23: internal compiler error: in range_on_edge, at
gimple-range.cc
:204
1418 | static PetscErrorCode ProcessOptions(LandauCtx *ctx, const char
prefix[]
)
| ^~~~~~~~~~~~~~
0x1bec52d gimple_ranger::range_on_edge(vrange&, edge_def*, tree_node*)
../../trunk.git/gcc/gimple-range.cc:204
The problem first seems to occur sometime in the git hash range
1cc0e9a46e79e7cc..8b8103dcd2624936, a distance of 24 commits.
I will finish the reduce and post it.
