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From: "pan2.li at intel dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug other/110744] [14 regression] cc.dg/tree-ssa/pr84512.c fails
 after r14-2267-gb8806f6ffbe72
Date: Thu, 20 Jul 2023 02:11:03 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110744

--- Comment #2 from Li Pan <pan2.li at intel dot com> ---
Hi there,

Just try to reproduce this bug with powerPC cross compiler (sorry we don't =
have
a real powerPC) with the below options. Unfortunately, I failed to reproduce
this bug as above mentioned.

Could you please help to take a look if there is something missing or
incorrect?

1. Build cross compiler

../configure \
  --target=3Dpowerpc-unknown-elf \
  --prefix=3D${INSTALL_DIR} \
  --disable-shared \
  --enable-threads \
  --enable-tls \
  --enable-languages=3Dc,c++ \
  --with-system-zlib \
  --with-newlib \
  --disable-libmudflap \
  --disable-libssp \
  --disable-libquadmath \
  --disable-libgomp \
  --enable-nls \
  --disable-tm-clone-registry \
  --enable-multilib \
  --src=3D`pwd`/../ \
  --enable-werror \

make -j $(nproc) all-gcc && make install-gcc

2. Compile the source file.

>> ./bin/powerpc-unknown-elf-gcc -mcpu=3Dpower10 -O3 -fdump-tree-optimized =
-c -S ../gcc/gcc/testsuite/gcc.dg/tree-ssa/pr84512.c -o -
        .file   "pr84512.c"
        .machine power10
        .section        ".text"
        .align 2
        .align 4
        .globl foo
        .type   foo, @function
foo:
.LFB0:
        li 3,285
        blr
.LFE0:
        .size   foo, .-foo
        .section        .eh_frame,"aw",@progbits
.Lframe1:
        .4byte  .LECIE1-.LSCIE1
.LSCIE1:
        .4byte  0
        .byte   0x3
        .string ""
        .byte   0x1
        .byte   0x7c
        .byte   0x41
        .byte   0xc
        .byte   0x1
        .byte   0
        .align 2
.LECIE1:
.LSFDE1:
        .4byte  .LEFDE1-.LASFDE1
.LASFDE1:
        .4byte  .LASFDE1-.Lframe1
        .4byte  .LFB0
        .4byte  .LFE0-.LFB0
        .align 2
.LEFDE1:
        .ident  "GCC: (GNU) 14.0.0 20230720 (experimental)"

>> cat pr84512.c.257t.optimized

;; Function foo (foo, funcdef_no=3D0, decl_uid=3D3445, cgraph_uid=3D1,
symbol_order=3D0)

int foo ()
{
  <bb 2> [local count: 97603129]:
  return 285;

}=