[Bug target/104001] [12 Regression] ICE in extract_insn, at recog.c:2769 since r12-6538-g5f19303ada7db92c155332e7ba317233ca05946b

[zsojka at seznam dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104001

Zdenek Sojka <zsojka at seznam dot cz> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |zsojka at seznam dot cz

--- Comment #1 from Zdenek Sojka <zsojka at seznam dot cz> ---
Probably the same issue:

$ cat testcase.C
int b, c, d;
int r;

void
foo ()
{
  r = ((b & ~d) | (c & d));
}
$ x86_64-pc-linux-gnu-gcc -O -mavx512bw testcase.c 
testcase.c: In function 'foo':
testcase.c:8:1: error: unrecognizable insn:
    8 | }
      | ^
(insn 15 14 0 2 (parallel [
            (set (mem/c:SI (symbol_ref:DI ("r") [flags 0x2] <var_decl
0x7fc1dea04e10 r>) [1 r+0 S4 A32])
                (ior:SI (reg:SI 92)
                    (reg:SI 93)))
            (clobber (reg:CC 17 flags))
        ]) "testcase.c":7:17 -1
     (expr_list:REG_DEAD (reg:SI 93)
        (expr_list:REG_DEAD (reg:SI 92)
            (expr_list:REG_UNUSED (reg:CC 17 flags)
                (nil)))))
during RTL pass: ira
testcase.c:8:1: internal compiler error: in extract_insn, at recog.c:2769
0x764803 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        /repo/gcc-trunk/gcc/rtl-error.c:108
0x76487f _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
        /repo/gcc-trunk/gcc/rtl-error.c:116
0x753518 extract_insn(rtx_insn*)
        /repo/gcc-trunk/gcc/recog.c:2769
0x115b51f ira_remove_insn_scratches(rtx_insn*, bool, _IO_FILE*, rtx_def*
(*)(rtx_def*))
        /repo/gcc-trunk/gcc/ira.c:5350
0x115e115 remove_scratches
        /repo/gcc-trunk/gcc/ira.c:5394
0x115e115 ira
        /repo/gcc-trunk/gcc/ira.c:5718
0x115e115 execute
        /repo/gcc-trunk/gcc/ira.c:6077
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Please include the complete backtrace with any bug report.
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