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* [Bug target/102140] New: [12 Regression] ICE: in extract_constrain_insn, at recog.c:2670 (insn does not satisfy its constraints) with -Og -fipa-cp -fno-tree-ccp -fno-tree-ter
@ 2021-08-31  6:47 zsojka at seznam dot cz
  2021-08-31  7:02 ` [Bug target/102140] " pinskia at gcc dot gnu.org
                   ` (10 more replies)
  0 siblings, 11 replies; 12+ messages in thread
From: zsojka at seznam dot cz @ 2021-08-31  6:47 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102140

            Bug ID: 102140
           Summary: [12 Regression] ICE: in extract_constrain_insn, at
                    recog.c:2670 (insn does not satisfy its constraints)
                    with -Og -fipa-cp -fno-tree-ccp -fno-tree-ter
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu
            Target: powerpc64le-unknown-linux-gnu

Created attachment 51385
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51385&action=edit
reduced testcase

Compiler output:
$ powerpc64le-unknown-linux-gnu-gcc -Og -fipa-cp -fno-tree-ccp -fno-tree-ter
testcase.c
testcase.c: In function 'foo':
testcase.c:23:15: warning: integer constant is so large that it is unsigned
   23 |   bar (1, (V){9223372036854775808 << 64});
      |               ^~~~~~~~~~~~~~~~~~~
testcase.c: In function 'bar':
testcase.c:7:1: warning: GCC vector passed by reference: non-standard ABI
extension with no compatibility guarantee [-Wpsabi]
    7 | bar (char c, V v)
      | ^~~
testcase.c: In function 'bar.constprop':
testcase.c:18:1: error: insn does not satisfy its constraints:
   18 | }
      | ^
(insn 16 14 17 2 (set (reg:V4SI 65 1 [orig:120 _14 ] [120])
        (const_vector:V4SI [
                (const_int 0 [0]) repeated x3
                (const_int -2147483648 [0xffffffff80000000])
            ])) 1163 {vsx_movv4si_64bit}
     (expr_list:REG_EQUIV (const_vector:V4SI [
                (const_int 0 [0]) repeated x3
                (const_int -2147483648 [0xffffffff80000000])
            ])
        (nil)))
during RTL pass: reload
testcase.c:18:1: internal compiler error: in extract_constrain_insn, at
recog.c:2670
0x6defa8 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        /repo/gcc-trunk/gcc/rtl-error.c:108
0x6df035 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
        /repo/gcc-trunk/gcc/rtl-error.c:118
0x6cfb93 extract_constrain_insn(rtx_insn*)
        /repo/gcc-trunk/gcc/recog.c:2670
0xdad094 check_rtl
        /repo/gcc-trunk/gcc/lra.c:2087
0xdb20bc lra(_IO_FILE*)
        /repo/gcc-trunk/gcc/lra.c:2505
0xd63f59 do_reload
        /repo/gcc-trunk/gcc/ira.c:5932
0xd63f59 execute
        /repo/gcc-trunk/gcc/ira.c:6118
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.

$ powerpc64le-unknown-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-powerpc64le/bin/powerpc64le-unknown-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r12-3241-20210831093846-gd904008df26-checking-yes-rtl-df-extra-powerpc64le/bin/../libexec/gcc/powerpc64le-unknown-linux-gnu/12.0.0/lto-wrapper
Target: powerpc64le-unknown-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--with-cloog --with-ppl --with-isl
--with-sysroot=/usr/powerpc64le-unknown-linux-gnu --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=powerpc64le-unknown-linux-gnu
--with-ld=/usr/bin/powerpc64le-unknown-linux-gnu-ld
--with-as=/usr/bin/powerpc64le-unknown-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r12-3241-20210831093846-gd904008df26-checking-yes-rtl-df-extra-powerpc64le
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.0 20210831 (experimental) (GCC)

^ permalink raw reply	[flat|nested] 12+ messages in thread
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2021-08-31  6:47 [Bug target/102140] New: [12 Regression] ICE: in extract_constrain_insn, at recog.c:2670 (insn does not satisfy its constraints) with -Og -fipa-cp -fno-tree-ccp -fno-tree-ter zsojka at seznam dot cz
2021-08-31  7:02 ` [Bug target/102140] " pinskia at gcc dot gnu.org
2021-08-31  7:03 ` pinskia at gcc dot gnu.org
2021-08-31  7:04 ` pinskia at gcc dot gnu.org
2021-08-31 17:18 ` jakub at gcc dot gnu.org
2021-09-23 22:05 ` segher at gcc dot gnu.org
2022-02-08 13:26 ` jakub at gcc dot gnu.org
2022-02-08 19:15 ` cvs-commit at gcc dot gnu.org
2022-02-08 19:16 ` jakub at gcc dot gnu.org
2022-02-19  8:02 ` cvs-commit at gcc dot gnu.org
2022-05-10  8:23 ` cvs-commit at gcc dot gnu.org
2022-05-11  6:24 ` cvs-commit at gcc dot gnu.org

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