https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90139
Bug ID: 90139
Summary: ICE in emit_block_move_hints, at expr.c:1601
Product: gcc
Version: 9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: ro at gcc dot gnu.org
CC: ebotcazou at gcc dot gnu.org
Target Milestone: ---
Target: sparc*-sun-solaris2.11
Created attachment 46194
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46194&action=edit
reduced testcase
The following reduced testcase ICEs on trunk:
$ ./xg++ -B./ -S -m64 -O skcms.ii
during RTL pass: expand
skcms.ii: In function ‘void m()’:
skcms.ii:7:6: internal compiler error: in emit_block_move_hints, at expr.c:1601
7 | void m() {
| ^
0x9a8f4f emit_block_move_hints(rtx_def*, rtx_def*, rtx_def*, block_op_methods,
unsigned int, long long, unsigned long long, unsigned long long, unsigned long
long)
/vol/gcc/src/hg/trunk/local/gcc/expr.c:1601
0x9a9043 emit_block_move(rtx_def*, rtx_def*, rtx_def*, block_op_methods)
/vol/gcc/src/hg/trunk/local/gcc/expr.c:1655
0xe8dd23 emit_partition_copy
/vol/gcc/src/hg/trunk/local/gcc/tree-outof-ssa.c:226
0xe8dd23 insert_part_to_rtx_on_edge
/vol/gcc/src/hg/trunk/local/gcc/tree-outof-ssa.c:391
0xe8dd23 elim_create
/vol/gcc/src/hg/trunk/local/gcc/tree-outof-ssa.c:677
0xe8dd23 eliminate_phi
/vol/gcc/src/hg/trunk/local/gcc/tree-outof-ssa.c:735
0xe8dd23 expand_phi_nodes(ssaexpand*)
/vol/gcc/src/hg/trunk/local/gcc/tree-outof-ssa.c:988
0x84bd23 execute
/vol/gcc/src/hg/trunk/local/gcc/cfgexpand.c:6486
While the original testcase shows the same ICE back to gcc 5, this one also
ICEs on mainline.
