https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117575
--- Comment #1 from chenglulu <chenglulu at loongson dot cn> ---
$ cc1plus test.cc -o - -O3 -msimd=lasx
int test_simde_mm512_maskz_extractf64x4_pd()
test.cc: In function ‘int test_simde_mm512_maskz_extractf64x4_pd()’:
test.cc:78:1: error: unrecognizable insn:
78 | }
| ^
(insn 61 60 62 2 (set (reg:V4DF 132 [ r_$f64_30 ])
(vec_merge:V4DF (vec_duplicate:V4DF (const_double:DF 0.0 [0x0.0p+0]))
(reg:V4DF 132 [ r_$f64_30 ])
(const_int 2 [0x2]))) "test.cc":36:13 -1
(nil))
during RTL pass: vregs
test.cc:78:1: internal compiler error: in extract_insn, at recog.cc:2812
0x1a4fe9b _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/home/chenglulu/work/toolchain-glibc/src/gcc-r15-51/gcc/rtl-error.cc:108
0x1a4fee0 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
/home/chenglulu/work/toolchain-glibc/src/gcc-r15-51/gcc/rtl-error.cc:116
0x19fd0ea extract_insn(rtx_insn*)
/home/chenglulu/work/toolchain-glibc/src/gcc-r15-51/gcc/recog.cc:2812
0x15a0feb instantiate_virtual_regs_in_insn
/home/chenglulu/work/toolchain-glibc/src/gcc-r15-51/gcc/function.cc:1612
0x15a25df instantiate_virtual_regs
/home/chenglulu/work/toolchain-glibc/src/gcc-r15-51/gcc/function.cc:1995
0x15a26c2 execute
/home/chenglulu/work/toolchain-glibc/src/gcc-r15-51/gcc/function.cc:2042
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
