[Bug target/82974] New: ICE in extract_insn, at recog.c:2305 on aarch64

marxin at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Mon Nov 13 21:21:00 GMT 2017


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82974

            Bug ID: 82974
           Summary: ICE in extract_insn, at recog.c:2305 on aarch64
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: amker at gcc dot gnu.org
  Target Milestone: ---
              Host: x86_64-linux-gnu
            Target: aarch64-linux-gnu

Following cross-compiler ICEs:

$ aarch64-linux-gnu-gcc
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/dfp/inf-1.c -O1 -c
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/dfp/inf-1.c: In
function ‘main’:
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/dfp/inf-1.c:61:1:
error: unrecognizable insn:
 }
 ^
(insn 103 102 104 13 (set (subreg:TI (reg:TD 113) 0)
        (const_wide_int 0x77ffcff3fcff3fcff3fcff3fcff3fcff))
"/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/dfp/inf-1.c":26 -1
     (nil))
during RTL pass: vregs
/home/marxin/Programming/gcc/gcc/testsuite/c-c++-common/dfp/inf-1.c:61:1:
internal compiler error: in extract_insn, at recog.c:2305
0x57c010 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        .././../gcc/rtl-error.c:108
0x57c02f _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
        .././../gcc/rtl-error.c:116
0xacdd2f extract_insn(rtx_insn*)
        .././../gcc/recog.c:2305
0x883ceb instantiate_virtual_regs_in_insn
        .././../gcc/function.c:1591
0x883ceb instantiate_virtual_regs
        .././../gcc/function.c:1959
0x883ceb execute
        .././../gcc/function.c:2008


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