[Bug target/126916] New: GCN: 'FAIL: gcc.dg/pr126569-1.c (internal compiler error: in extract_insn, at recog.cc:2894)'

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126916

            Bug ID: 126916
           Summary: GCN: 'FAIL: gcc.dg/pr126569-1.c (internal compiler
                    error: in extract_insn, at recog.cc:2894)'
           Product: gcc
           Version: 17.0
            Status: UNCONFIRMED
          Keywords: testsuite-fail
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: tschwinge at gcc dot gnu.org
                CC: ams at gcc dot gnu.org
            Blocks: 126569
  Target Milestone: ---
            Target: amdgcn

The test case 'gcc.dg/pr126569-1.c' added in commit
r17-2882-gc42241d2de04ce75550649ed3dca7ff1549c3343 "cselim: Fix
cond_store_replacement_limited for clobbers [PR126569]" ICEs for
'--target=amdgcn-amdhsa':

    +FAIL: gcc.dg/pr126569-1.c (internal compiler error: in extract_insn, at
recog.cc:2894)
    +FAIL: gcc.dg/pr126569-1.c (test for excess errors)

    [...]/source-gcc/gcc/testsuite/gcc.dg/pr126569-1.c: In function 'f':
    [...]/source-gcc/gcc/testsuite/gcc.dg/pr126569-1.c:20:1: error:
unrecognizable insn:
    (insn 20 19 21 6 (set (reg/v:SI 686 [ k2 ])
            (subreg:SI (symbol_ref:DI ("gw") [flags 0x2] <var_decl
0x7f89c80ea850 gw>) 0))
"[...]/source-gcc/gcc/testsuite/gcc.dg/pr126569-1.c":14:21 -1
         (nil))
    during RTL pass: vregs
    [...]/source-gcc/gcc/testsuite/gcc.dg/pr126569-1.c:20:1: internal compiler
error: in extract_insn, at recog.cc:2894
    0x24ca0ab internal_error(char const*, ...)
            [...]/source-gcc/gcc/diagnostic-global-context.cc:787
    0xad900c fancy_abort(char const*, int, char const*)
            [...]/source-gcc/gcc/diagnostics/context.cc:1813
    0x8c706c _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
            [...]/source-gcc/gcc/rtl-error.cc:108
    0x8c70f6 _fatal_insn_not_found(rtx_def const*, char const*, int, char
const*)
            [...]/source-gcc/gcc/rtl-error.cc:116
    0x8b82f3 extract_insn(rtx_insn*)
            [...]/source-gcc/gcc/recog.cc:2894
    0xe6cf71 instantiate_virtual_regs_in_insn
            [...]/source-gcc/gcc/function.cc:1611
    0xe6cf71 instantiate_virtual_regs
            [...]/source-gcc/gcc/function.cc:1987
    0xe6cf71 execute
            [...]/source-gcc/gcc/function.cc:2034


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126569
[Bug 126569] [17 Regression] cond_store_replacement_limited  vs clobbers