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[Bug target/73650] New: powerpc: -mcpu=e500mc hits ICE: insn does not satisfy its constraints


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=73650

            Bug ID: 73650
           Summary: powerpc: -mcpu=e500mc hits ICE: insn does not satisfy
                    its constraints
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: anton at samba dot org
                CC: amodra at gcc dot gnu.org, segher at gcc dot gnu.org,
                    wschmidt at gcc dot gnu.org
  Target Milestone: ---
            Target: powerpc32-linux

Created attachment 39160
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=39160&action=edit
Test case

The following test case hits an ICE:

# gcc -m32 -mcpu=e500mc -O2 testcase.c

testcase.c:11:1: error: insn does not satisfy its constraints:
 }
 ^
(insn 75 71 90 3 (parallel [
            (set (reg:CC 75 7 [204])
                (compare:CC (reg/v:SI 9 9 [orig:190 n ] [190])
                    (const_int 0 [0])))
            (set (reg:SI 66 ctr [orig:203 n ] [203])
                (reg/v:SI 9 9 [orig:190 n ] [190]))
        ]) 465 {*movsi_internal2}
     (nil))
testcase.c:11:1: internal compiler error: in extract_constrain_insn, at
recog.c:2211
0x10840b93 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        ../../gcc/gcc/rtl-error.c:108
0x10840beb _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
        ../../gcc/gcc/rtl-error.c:119
0x10806797 extract_constrain_insn(rtx_insn*)
        ../../gcc/gcc/recog.c:2211
0x106eeae7 check_rtl
        ../../gcc/gcc/lra.c:2108
0x106f486f lra(_IO_FILE*)
        ../../gcc/gcc/lra.c:2516
0x106941ff do_reload
        ../../gcc/gcc/ira.c:5384
0x106941ff execute
        ../../gcc/gcc/ira.c:5568

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