https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68296
Bug ID: 68296
Summary: [6 regression] ICE in prepare_cmp_insn, at
optabs.c:3813
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: sch...@linux-m68k.org
CC: ienkovich at gcc dot gnu.org
Target Milestone: ---
Target: aarch64-*-*, ia64-*-*
Started with r230098.
For example on aarch64:
FAIL: gcc.c-torture/compile/pr53410-2.c -O0 (internal compiler error)
FAIL: gcc.c-torture/compile/pr53410-2.c -O0 (test for excess errors)
Excess errors:
/opt/gcc/gcc-20151111/gcc/testsuite/gcc.c-torture/compile/pr53410-2.c:27:18:
internal compiler error: in prepare_cmp_insn, at optabs.c:3813
0xa10aeb prepare_cmp_insn
../../gcc/optabs.c:3813
0xa10b7f emit_cmp_and_jump_insns(rtx_def*, rtx_def*, rtx_code, rtx_def*,
machine_mode, int, rtx_def*, int)
../../gcc/optabs.c:3960
0x780d17 do_compare_rtx_and_jump(rtx_def*, rtx_def*, rtx_code, int,
machine_mode, rtx_def*, rtx_code_label*, rtx_code_label*, int)
../../gcc/dojump.c:1140
0x781cc7 do_compare_and_jump
../../gcc/dojump.c:1219
0x820f33 expand_expr_real_2(separate_ops*, rtx_def*, machine_mode,
expand_modifier)
../../gcc/expr.c:9076
0x70fd87 expand_gimple_stmt_1
../../gcc/cfgexpand.c:3612
0x70fd87 expand_gimple_stmt
../../gcc/cfgexpand.c:3673
0x7139bb expand_gimple_basic_block
../../gcc/cfgexpand.c:5679
0x719077 execute
../../gcc/cfgexpand.c:6291
