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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/108984] New: [13 Regression] LTO bootstrap causes
 testsuite ICE
Date: Wed, 01 Mar 2023 10:25:02 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108984

            Bug ID: 108984
           Summary: [13 Regression] LTO bootstrap causes testsuite ICE
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: rguenth at gcc dot gnu.org
  Target Milestone: ---

I'm seeing the following ICE in a testsuite run after a simple
../configure --with-build-config=3Dbootstrap-lto on x86_64-linux

#0  0x0000000000de94bf in general_operand (op=3D0x0, mode=3DE_DImode)
    at ../../gcc/gcc/recog.cc:1435
#1  0x00000000018740f9 in nonimmediate_operand (mode=3DE_DImode, op=3D0x0)
    at ../../gcc/gcc/recog.cc:1720
#2  x86_64_szext_general_operand (mode=3DE_DImode, op=3D0x0)
    at ../../gcc/gcc/config/i386/predicates.md:505
#3  x86_64_szext_general_operand (op=3D0x0, mode=3DE_DImode)
    at ../../gcc/gcc/config/i386/predicates.md:503
#4  0x00000000011fcd1d in insn_operand_matches (operand=3D0x0, opno=3D2,
    icode=3DCODE_FOR_anddi3) at ../../gcc/gcc/optabs.cc:7793
#5  gen_and2_insn (x=3D0x7ffff67b9420, y=3D0x0)
    at ../../gcc/gcc/config/i386/i386.cc:8415
#6  0x00000000011fcfb3 in ix86_expand_prologue ()
    at ../../gcc/gcc/config/i386/i386.cc:8580
#7  0x00000000011df0fb in gen_prologue ()
    at ../../gcc/gcc/config/i386/i386.md:16674
#8  target_gen_prologue () at ../../gcc/gcc/config/i386/i386.md:24241
#9  0x0000000000b504ec in make_prologue_seq ()
    at ../../gcc/gcc/function.cc:5841
#10 0x0000000000b60154 in thread_prologue_and_epilogue_insns ()
    at ../../gcc/gcc/function.cc:6073

happens when stack_realign_drap, for example for gcc.dg/stack-usage-2.c=