https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68134
Bug ID: 68134
Summary: vector-of-one-int64_t comparison ICE on
aarch64-none-elf
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: jgreenhalgh at gcc dot gnu.org
Target Milestone: ---
Created attachment 36605
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36605&action=edit
Failing testcase
After r229128 I get an ICE at O0 on aarch64 targets when compiling the attached
testcase:
$ gcc random-test.c -O0
In file included from random-test.c:1:0:
..../build-aarch64-none-elf/install/lib/gcc/aarch64-none-elf/6.0.0/include/arm_neon.h:
In function 'foo':
..../build-aarch64-none-elf/install/lib/gcc/aarch64-none-elf/6.0.0/include/arm_neon.h:11941:28:
internal compiler error: in prepare_cmp_insn, at optabs.c:3820
return (uint64x1_t) (__a == __b);
^
0x996e40 prepare_cmp_insn
..../src/gcc/gcc/optabs.c:3820
0x997396 emit_cmp_and_jump_insns(rtx_def*, rtx_def*, rtx_code, rtx_def*,
machine_mode, int, rtx_def*, int)
..../src/gcc/gcc/optabs.c:3967
0x72e934 do_compare_rtx_and_jump(rtx_def*, rtx_def*, rtx_code, int,
machine_mode, rtx_def*, rtx_code_label*, rtx_code_label*, int)
..../src/gcc/gcc/dojump.c:1149
0x72f52a do_compare_and_jump
..../src/gcc/gcc/dojump.c:1228
0x73134f do_jump_1(tree_code, tree_node*, tree_node*, rtx_code_label*,
rtx_code_label*, int)
..../src/gcc/gcc/dojump.c:240
0x731c68 jumpifnot_1(tree_code, tree_node*, tree_node*, rtx_code_label*, int)
..../src/gcc/gcc/dojump.c:148
0x7c6e47 expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
..../src/gcc/gcc/expr.c:9030
0x6c5ad9 expand_gimple_stmt_1
..../src/gcc/gcc/cfgexpand.c:3617
0x6c5ad9 expand_gimple_stmt
..../src/gcc/gcc/cfgexpand.c:3677
0x6c8316 expand_gimple_basic_block
..../src/gcc/gcc/cfgexpand.c:5681
0x6cb8c4 execute
..../src/gcc/gcc/cfgexpand.c:6293
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
