[Bug rtl-optimization/97313] New: [11 Regression] ICE in lra_set_insn_recog_data, at lra.c:1004 since r11-937-g5261cf8ce824bfc7

[marxin at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97313

            Bug ID: 97313
           Summary: [11 Regression] ICE in lra_set_insn_recog_data, at
                    lra.c:1004 since r11-937-g5261cf8ce824bfc7
           Product: gcc
           Version: 10.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org
                CC: vmakarov at gcc dot gnu.org
  Target Milestone: ---
              Host: x86_64-linux-gnu
            Target: i586-linux-gnu

The following test-case reduced from qemu fails:

$ cat /tmp/tz.i
typedef struct {
  int unspecified : 1;
  int secure : 1;
} MemTxAttrs;

enum { MSCAllowNonSecure } tz_msc_read_pdata;

int tz_msc_read_s_0;
int tz_msc_check();
int address_space_ldl_le();

void tz_msc_read(MemTxAttrs attrs) {
  int as = tz_msc_read_s_0;
  long long data;
  switch (tz_msc_check()) {
  case MSCAllowNonSecure:
    attrs.secure = attrs.unspecified = 0;
    data = address_space_ldl_le(as, attrs);
  }
  tz_msc_read_pdata = data;
}

$ gcc /tmp/tz.i -O2 -fPIE -m32
during RTL pass: reload
/tmp/tz.i: In function ‘tz_msc_read’:
/tmp/tz.i:21:1: internal compiler error: in lra_set_insn_recog_data, at
lra.c:1004
   21 | }
      | ^
0x105e179 lra_set_insn_recog_data(rtx_insn*)
        /home/marxin/Programming/gcc/gcc/lra.c:1004
0x105bf0d lra_get_insn_recog_data
        /home/marxin/Programming/gcc/gcc/lra-int.h:488
0x1060ae3 remove_scratches_1
        /home/marxin/Programming/gcc/gcc/lra.c:2064
0x105cdfb lra_emit_move(rtx_def*, rtx_def*)
        /home/marxin/Programming/gcc/gcc/lra.c:506
0x1073611 match_reload
        /home/marxin/Programming/gcc/gcc/lra-constraints.c:1138
0x107cff9 curr_insn_transform
        /home/marxin/Programming/gcc/gcc/lra-constraints.c:4551
0x107e986 lra_constraints(bool)
        /home/marxin/Programming/gcc/gcc/lra-constraints.c:5100
0x106175d lra(_IO_FILE*)
        /home/marxin/Programming/gcc/gcc/lra.c:2415
0xfee170 do_reload
        /home/marxin/Programming/gcc/gcc/ira.c:5529
0xfee65e execute
        /home/marxin/Programming/gcc/gcc/ira.c:5715
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