https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92449
--- Comment #1 from Arseny Solokha <asolokha at gmx dot com> ---
I hope this is related:
int
compare_exponents_unordered (double exponent1, double exponent2)
{
return __builtin_vec_scalar_cmp_exp_unordered (exponent1, exponent2);
}
(reduced from
gcc/testsuite/gcc.target/powerpc/bfp/scalar-cmp-exp-unordered-3.c)
% powerpc-e300c3-linux-gnu-gcc-10.0.0-alpha20191110 -mcpu=power9 -Ofast -c
mqrwhdzx.c
mqrwhdzx.c: In function 'compare_exponents_unordered':
mqrwhdzx.c:5:1: error: unrecognizable insn:
5 | }
| ^
(insn 8 7 12 2 (set (reg:SI 117 [ <retval> ])
(unordered:SI (reg:CCFP 120)
(const_int 0 [0]))) "mqrwhdzx.c":4:10 -1
(nil))
during RTL pass: vregs
mqrwhdzx.c:5:1: internal compiler error: in extract_insn, at recog.c:2311
0x66771c _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.0_alpha20191110/work/gcc-10-20191110/gcc/rtl-error.c:108
0x66773c _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.0_alpha20191110/work/gcc-10-20191110/gcc/rtl-error.c:116
0x665957 extract_insn(rtx_insn*)
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.0_alpha20191110/work/gcc-10-20191110/gcc/recog.c:2311
0xac1a63 instantiate_virtual_regs_in_insn
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.0_alpha20191110/work/gcc-10-20191110/gcc/function.c:1607
0xac1a63 instantiate_virtual_regs
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.0_alpha20191110/work/gcc-10-20191110/gcc/function.c:1977
0xac1a63 execute
/var/tmp/portage/cross-powerpc-e300c3-linux-gnu/gcc-10.0.0_alpha20191110/work/gcc-10-20191110/gcc/function.c:2026
