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[Bug tree-optimization/84526] New: [8 Regression] ICE in generic_overlap at gcc/gimple-ssa-warn-restrict.c:927 since r257860
- From: "marxin at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 23 Feb 2018 08:29:29 +0000
- Subject: [Bug tree-optimization/84526] New: [8 Regression] ICE in generic_overlap at gcc/gimple-ssa-warn-restrict.c:927 since r257860
- Auto-submitted: auto-generated
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84526
Bug ID: 84526
Summary: [8 Regression] ICE in generic_overlap at
gcc/gimple-ssa-warn-restrict.c:927 since r257860
Product: gcc
Version: unknown
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: msebor at gcc dot gnu.org
Target Milestone: ---
Starting from the revision, we ICE on:
$ gcc -m32 -O2 -Wrestrict ytab.i
during GIMPLE pass: wrestrict
ytab.i: In function ‘c’:
ytab.i:7:6: internal compiler error: Segmentation fault
void c (void) { __builtin_strcpy (&b.a[i], b.a); }
^
0xfdd6a9 crash_signal
../../gcc/toplev.c:325
0xc33483 generic_overlap
../../gcc/gimple-ssa-warn-restrict.c:927
0xc3486b strcpy_overlap
../../gcc/gimple-ssa-warn-restrict.c:1178
0xc354f6 overlap
../../gcc/gimple-ssa-warn-restrict.c:1304
0xc355db maybe_diag_overlap
../../gcc/gimple-ssa-warn-restrict.c:1325
0xc37792 check_bounds_or_overlap(gcall*, tree_node*, tree_node*, tree_node*,
tree_node*, bool)
../../gcc/gimple-ssa-warn-restrict.c:1889
0xc37484 check_call
../../gcc/gimple-ssa-warn-restrict.c:1822
0xc2fc66 before_dom_children
../../gcc/gimple-ssa-warn-restrict.c:106
0x1b14bc7 dom_walker::walk(basic_block_def*)
../../gcc/domwalk.c:353
0xc2fce8 execute
../../gcc/gimple-ssa-warn-restrict.c:120