[Bug target/92388] New: ICE in insert_regs, at cse.c:1129

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92388

            Bug ID: 92388
           Summary: ICE in insert_regs, at cse.c:1129
           Product: gcc
           Version: 10.0
            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
  Target Milestone: ---
              Host: x86_64-linux-gnu
            Target: arm-linux-gnueabi

I see the following ICE:

$ arm-linux-gnueabi-gcc
/home/marxin/Programming/gcc/gcc/testsuite/gcc.c-torture/compile/950612-1.c
-fno-dce -O3 -c
/home/marxin/Programming/gcc/gcc/testsuite/gcc.c-torture/compile/950612-1.c:17:1:
warning: return type defaults to ‘int’ [-Wimplicit-int]
   17 | f (pc)
      | ^
/home/marxin/Programming/gcc/gcc/testsuite/gcc.c-torture/compile/950612-1.c: In
function ‘f’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.c-torture/compile/950612-1.c:116:3:
warning: implicit declaration of function ‘printf’
[-Wimplicit-function-declaration]
  116 |   printf("shift = %d\n", shift);
      |   ^~~~~~
/home/marxin/Programming/gcc/gcc/testsuite/gcc.c-torture/compile/950612-1.c:116:3:
warning: incompatible implicit declaration of built-in function ‘printf’
/home/marxin/Programming/gcc/gcc/testsuite/gcc.c-torture/compile/950612-1.c:1:1:
note: include ‘<stdio.h>’ or provide a declaration of ‘printf’
  +++ |+#include <stdio.h>
    1 | typedef enum
/home/marxin/Programming/gcc/gcc/testsuite/gcc.c-torture/compile/950612-1.c:132:7:
warning: incompatible implicit declaration of built-in function ‘printf’
  132 |       printf("%08lx.%08lx\n", (long)(((unsigned long long) acc) >> 32)
, (long)(((unsigned long long) acc) & 0xffffffff));
      |       ^~~~~~
/home/marxin/Programming/gcc/gcc/testsuite/gcc.c-torture/compile/950612-1.c:132:7:
note: include ‘<stdio.h>’ or provide a declaration of ‘printf’
during RTL pass: cse_local
/home/marxin/Programming/gcc/gcc/testsuite/gcc.c-torture/compile/950612-1.c:134:1:
internal compiler error: in insert_regs, at cse.c:1129
  134 | }
      | ^
0x5a4b07 insert_regs
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/cse.c:1129
0x10e97a8 cse_insn
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/cse.c:5956
0x10ebac4 cse_extended_basic_block
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/cse.c:6614
0x10ebac4 cse_main
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/cse.c:6793
0x10ec74d rest_of_handle_cse_after_global_opts
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/cse.c:7765
0x10ec74d execute
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-arm/build/gcc/cse.c:7816
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