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* [Bug target/104502] New: [12 Regression] ICE: in extract_constrain_insn, at recog.cc:2670: insn does not satisfy its constraints with -O -flive-range-shrinkage -march=barcelona -fstack-protector-all -mavx512f
@ 2022-02-11 14:51 zsojka at seznam dot cz
  2022-02-11 15:02 ` [Bug target/104502] " jakub at gcc dot gnu.org
                   ` (6 more replies)
  0 siblings, 7 replies; 8+ messages in thread
From: zsojka at seznam dot cz @ 2022-02-11 14:51 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104502

            Bug ID: 104502
           Summary: [12 Regression] ICE: in extract_constrain_insn, at
                    recog.cc:2670: insn does not satisfy its constraints
                    with -O -flive-range-shrinkage -march=barcelona
                    -fstack-protector-all -mavx512f
           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: x86_64-pc-linux-gnu

Created attachment 52415
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52415&action=edit
reduced testcase

Compiler output:
$ x86_64-pc-linux-gnu-gcc -O -flive-range-shrinkage -march=barcelona
-fstack-protector-all -mavx512f testcase.c
testcase.c: In function 'foo':
testcase.c:27:1: error: insn does not satisfy its constraints:
   27 | }
      | ^
(insn 152 19 153 2 (set (reg:V2DF 44 xmm8 [150])
        (vec_duplicate:V2DF (reg:DF 52 xmm16 [orig:83 d.0_2 ] [83])))
"testcase.c":18:23 5856 {vec_dupv2df}
     (nil))
during RTL pass: pro_and_epilogue
testcase.c:27:1: internal compiler error: in extract_constrain_insn, at
recog.cc:2670
0x7682a5 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        /repo/gcc-trunk/gcc/rtl-error.cc:108
0x76832b _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
        /repo/gcc-trunk/gcc/rtl-error.cc:118
0x757252 extract_constrain_insn(rtx_insn*)
        /repo/gcc-trunk/gcc/recog.cc:2670
0x12e0dcb copyprop_hardreg_forward_1
        /repo/gcc-trunk/gcc/regcprop.cc:826
0x12e2001 copyprop_hardreg_forward_bb_without_debug_insn(basic_block_def*)
        /repo/gcc-trunk/gcc/regcprop.cc:1220
0x134cba7 prepare_shrink_wrap
        /repo/gcc-trunk/gcc/shrink-wrap.cc:451
0x134cba7 try_shrink_wrapping(edge_def**, rtx_insn*)
        /repo/gcc-trunk/gcc/shrink-wrap.cc:674
0x101009b thread_prologue_and_epilogue_insns()
        /repo/gcc-trunk/gcc/function.cc:6047
0x1010972 rest_of_handle_thread_prologue_and_epilogue
        /repo/gcc-trunk/gcc/function.cc:6532
0x1010972 execute
        /repo/gcc-trunk/gcc/function.cc:6608
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.

$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r12-7195-20220211112825-g72f8d228aff-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/12.0.1/lto-wrapper
Target: x86_64-pc-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 --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu
--with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r12-7195-20220211112825-g72f8d228aff-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.1 20220211 (experimental) (GCC)

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2022-02-11 14:51 [Bug target/104502] New: [12 Regression] ICE: in extract_constrain_insn, at recog.cc:2670: insn does not satisfy its constraints with -O -flive-range-shrinkage -march=barcelona -fstack-protector-all -mavx512f zsojka at seznam dot cz
2022-02-11 15:02 ` [Bug target/104502] " jakub at gcc dot gnu.org
2022-02-11 15:39 ` jakub at gcc dot gnu.org
2022-02-12 10:18 ` cvs-commit at gcc dot gnu.org
2022-02-12 10:22 ` 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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