https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118936

            Bug ID: 118936
           Summary: ICE in ix86_finalize_stack_frame_flags, at
                    config/i386/i386.cc:8683
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: 19373742 at buaa dot edu.cn
  Target Milestone: ---

Created attachment 60530
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=60530&action=edit
The preprocessed file

*******************************************************************************
OS and Platform:
Ubuntu 20.04.4 LTS
*******************************************************************************
GCC Release:
Using built-in specs.
COLLECT_GCC=./gcc-releases/bin/gcc
COLLECT_LTO_WRAPPER=/home/gcc-releases/libexec/gcc/x86_64-pc-linux-gnu/15.0.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ./configure --prefix=/home/gcc-releases/ --disable-multilib
--enable-languages=c,c++
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 15.0.1 20250216 (experimental) (GCC) 
*******************************************************************************
Command Lines:
# gcc  -O3 -fno-omit-frame-pointer -fno-toplevel-reorder a.c
*******************************************************************************
during RTL pass: pro_and_epilogue
a.c: In function ‘func_40’:
a.c:1109:1: internal compiler error: in ix86_finalize_stack_frame_flags, at
config/i386/i386.cc:8683
 1109 | }
      | ^
0x25e720f internal_error(char const*, ...)
        ../.././gcc/diagnostic-global-context.cc:517
0xa202b5 fancy_abort(char const*, int, char const*)
        ../.././gcc/diagnostic.cc:1722
0x94c387 ix86_finalize_stack_frame_flags
        ../.././gcc/config/i386/i386.cc:8683
0x15a6480 ix86_expand_epilogue(int)
        ../.././gcc/config/i386/i386.cc:9984
0x1e0d0af gen_epilogue()
        ../.././gcc/config/i386/i386.md:20813
0x158edd5 target_gen_epilogue
        ../.././gcc/config/i386/i386.md:20311
0xd918a6 make_epilogue_seq
        ../.././gcc/function.cc:6029
0xd9199b thread_prologue_and_epilogue_insns()
        ../.././gcc/function.cc:6111
0xd92142 rest_of_handle_thread_prologue_and_epilogue
        ../.././gcc/function.cc:6627
0xd92142 execute
        ../.././gcc/function.cc:6713
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

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