[Bug c/86067] New: [MIPS] ICE: scal-to-vec1.c:86:1: error: unrecognizable insn with -march=loongson3a

[paul.hua.gm at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86067

            Bug ID: 86067
           Summary: [MIPS] ICE: scal-to-vec1.c:86:1: error: unrecognizable
                    insn with -march=loongson3a
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: paul.hua.gm at gmail dot com
  Target Milestone: ---

Created attachment 44239
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44239&action=edit
preprocessed .i file

/home/xuchenghua/GCC/gcc_git_trunk/gcc/testsuite/gcc.c-torture/execute/scal-to-vec1.c:
In function ‘main’:
/home/xuchenghua/GCC/gcc_git_trunk/gcc/testsuite/gcc.c-torture/execute/scal-to-vec1.c:86:1:
error: unrecognizable insn:
(insn 69 68 70 2 (set (reg:V4HI 541)
        (unspec:V4HI [
                (reg:SI 543)
                (subreg/s/u:HI (reg:DI 195 [ _2 ]) 0)
                (const_int 0 [0])
            ] UNSPEC_LOONGSON_PINSRH))
"/home/xuchenghua/GCC/gcc_git_trunk/gcc/testsuite/gcc.c-torture/execute/scal-to-vec1.c":45
-1
     (nil))
during RTL pass: vregs
/home/xuchenghua/GCC/gcc_git_trunk/gcc/testsuite/gcc.c-torture/execute/scal-to-vec1.c:86:1:
internal compiler error: in extract_insn, at recog.c:2304
0x12012a6c7 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        ../../../gcc_git_trunk/gcc/rtl-error.c:108
0x12012a707 _fatal_insn_not_found(rtx_def const*, char const*, int, char
const*)
        ../../../gcc_git_trunk/gcc/rtl-error.c:116
0x12078f54f extract_insn(rtx_insn*)
        ../../../gcc_git_trunk/gcc/recog.c:2304
0x1204b9787 instantiate_virtual_regs_in_insn
        ../../../gcc_git_trunk/gcc/function.c:1600
0x1204b9787 instantiate_virtual_regs
        ../../../gcc_git_trunk/gcc/function.c:1970
0x1204b9787 execute
        ../../../gcc_git_trunk/gcc/function.c:2019
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.


cmd:
cc1 -fpreprocessed scal-to-vec1.i -mel -quiet -dumpbase scal-to-vec1.c
-march=loongson3a -mabi=64 -mllsc -mips64r2 -mno-shared -auxbase scal-to-vec1
-O1 -w -version -fdiagnostics-color=never -fno-diagnostics-show-caret -o
scal-to-vec1.s