https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105383

--- Comment #3 from Zdenek Sojka <zsojka at seznam dot cz> ---
Created attachment 52890
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52890&action=edit
testcase failing at just -Os -m32

$ x86_64-pc-linux-gnu-gcc -Os -m32 testcase-Os.c 
during RTL pass: fwprop1
testcase-Os.c: In function 'foo':
testcase-Os.c:10:1: internal compiler error: in change_insns, at
rtl-ssa/changes.cc:674
   10 | }
      | ^
0xd3c823
rtl_ssa::function_info::change_insns(array_slice<rtl_ssa::insn_change*>)
        /repo/gcc-trunk/gcc/rtl-ssa/changes.cc:674
0x24b9c97 rtl_ssa::function_info::change_insn(rtl_ssa::insn_change&)
        /repo/gcc-trunk/gcc/rtl-ssa/changes.cc:717
0x2368548 try_fwprop_subst_pattern
        /repo/gcc-trunk/gcc/fwprop.cc:553
0x2368548 try_fwprop_subst
        /repo/gcc-trunk/gcc/fwprop.cc:627
0x2368c6c forward_propagate_and_simplify
        /repo/gcc-trunk/gcc/fwprop.cc:823
0x2368c6c forward_propagate_into
        /repo/gcc-trunk/gcc/fwprop.cc:886
0x2368f1b forward_propagate_into
        /repo/gcc-trunk/gcc/fwprop.cc:835
0x2368f1b fwprop_insn
        /repo/gcc-trunk/gcc/fwprop.cc:943
0x2368ff9 fwprop
        /repo/gcc-trunk/gcc/fwprop.cc:995
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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