https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83682
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-01-05
Component|target |rtl-optimization
Ever confirmed|0 |1
--- Comment #1 from Uroš Bizjak <ubizjak at gmail dot com> ---
Confirmed:
(gdb) bt
#0 internal_error (gmsgid=gmsgid@entry=0x1c07213 "in %s, at %s:%d") at
/home/uros/gcc-svn/trunk/gcc/diagnostic.c:1430
#1 0x000000000082809b in fancy_abort (file=file@entry=0x1630d88
"/home/uros/gcc-svn/trunk/gcc/simplify-rtx.c", line=line@entry=6319,
function=function@entry=0x1632310 <simplify_subreg(machine_mode, rtx_def*,
machine_mode, poly_int<1u, unsigned long>)::__FUNCTION__> "simplify_subreg")
at /home/uros/gcc-svn/trunk/gcc/diagnostic.c:1500
#2 0x0000000000d0c30c in simplify_subreg(machine_mode, rtx_def*, machine_mode,
poly_int<1u, unsigned long>) () at
/home/uros/gcc-svn/trunk/gcc/simplify-rtx.c:6422
#3 0x00000000013a879e in combine_simplify_rtx (x=0x7fffeff01ee8,
op0_mode=E_SFmode, in_dest=in_dest@entry=0, in_cond=in_cond@entry=0) at
/home/uros/gcc-svn/trunk/gcc/combine.c:5877
#4 0x00000000013aa654 in subst(rtx_def*, rtx_def*, rtx_def*, int, int, int) ()
at /home/uros/gcc-svn/trunk/gcc/combine.c:5604
#5 0x00000000013aa6f5 in subst(rtx_def*, rtx_def*, rtx_def*, int, int, int) ()
at /home/uros/gcc-svn/trunk/gcc/combine.c:5542
#6 0x00000000013ad821 in try_combine(rtx_insn*, rtx_insn*, rtx_insn*,
rtx_insn*, int*, rtx_insn*) () at /home/uros/gcc-svn/trunk/gcc/combine.c:3398
#7 0x00000000013b3bd7 in combine_instructions (nregs=<optimized out>,
f=<optimized out>) at /home/uros/gcc-svn/trunk/gcc/combine.c:1320
#8 rest_of_handle_combine () at /home/uros/gcc-svn/trunk/gcc/combine.c:14856
#9 (anonymous namespace)::pass_combine::execute(function*) () at
/home/uros/gcc-svn/trunk/gcc/combine.c:14901
#10 0x0000000000c5d7c9 in execute_one_pass(opt_pass*) () at
/home/uros/gcc-svn/trunk/gcc/passes.c:2497
#11 0x0000000000c5df75 in execute_pass_list_1(opt_pass*) () at
/home/uros/gcc-svn/trunk/gcc/passes.c:2586
#12 0x0000000000c5df87 in execute_pass_list_1(opt_pass*) () at
/home/uros/gcc-svn/trunk/gcc/passes.c:2587
#13 0x0000000000c5dfb9 in execute_pass_list(function*, opt_pass*) () at
/home/uros/gcc-svn/trunk/gcc/passes.c:2597
#14 0x0000000000993213 in cgraph_node::expand() () at
/home/uros/gcc-svn/trunk/gcc/context.h:48
#15 0x00000000009943ac in expand_all_functions () at
/home/uros/gcc-svn/trunk/gcc/cgraphunit.c:2275
#16 symbol_table::compile() [clone .part.75] () at
/home/uros/gcc-svn/trunk/gcc/cgraphunit.c:2624
#17 0x00000000009966ea in symbol_table::compile (this=0x7fffefda5100) at
/home/uros/gcc-svn/trunk/gcc/cgraphunit.c:2717
#18 symbol_table::finalize_compilation_unit (this=0x7fffefda5100) at
/home/uros/gcc-svn/trunk/gcc/cgraphunit.c:2717
#19 0x0000000000d2b888 in compile_file () at
/home/uros/gcc-svn/trunk/gcc/toplev.c:480
#20 0x000000000082af50 in do_compile () at
/home/uros/gcc-svn/trunk/gcc/toplev.c:2076
#21 toplev::main(int, char**) () at /home/uros/gcc-svn/trunk/gcc/toplev.c:2211
#22 0x000000000082d23b in main (argc=3, argv=0x7fffffffdae8) at
/home/uros/gcc-svn/trunk/gcc/main.c:39
(gdb) f 2
#2 0x0000000000d0c30c in simplify_subreg(machine_mode, rtx_def*, machine_mode,
poly_int<1u, unsigned long>) () at
/home/uros/gcc-svn/trunk/gcc/simplify-rtx.c:6422
6422 SUBREG_PROMOTED_SET (newx, SUBREG_PROMOTED_GET (op));
(gdb) list
6417 && known_ge (outersize, innersize)
6418 && known_le (outersize, innermostsize)
6419 && subreg_lowpart_p (newx))
6420 {
6421 SUBREG_PROMOTED_VAR_P (newx) = 1;
6422 SUBREG_PROMOTED_SET (newx, SUBREG_PROMOTED_GET (op));
6423 }
6424 return newx;
6425 }
6426 return NULL_RTX;
