[Bug target/101788] New: [12 Regression] ICE in extract_bit_field_1 at gcc/expmed.c:1857

marxin at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Thu Aug 5 08:21:52 GMT 2021


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101788

            Bug ID: 101788
           Summary: [12 Regression] ICE in extract_bit_field_1 at
                    gcc/expmed.c:1857
           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: marxin at gcc dot gnu.org
                CC: rsandifo at gcc dot gnu.org
  Target Milestone: ---

Must be a recent regression:

$ aarch64-linux-gnu-gcc
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/aarch64/sve/ext_2.c -O3
-c
during RTL pass: expand
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/aarch64/sve/ext_2.c: In
function ‘foo’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.target/aarch64/sve/ext_2.c:13:5:
internal compiler error: Segmentation fault
   13 |   x = __builtin_shuffle (y, y, (vnx4si) { 1, 2, 3, 4, 5, 6, 7, 8 });
      |   ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0xbfecdf crash_signal
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/toplev.c:328
0x7ffff786239f ???
        ../sysdeps/unix/sysv/linux/sigaction.c:10
0x8d926c extract_integral_bit_field
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/expmed.c:1984
0x8d926c extract_bit_field_1
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/expmed.c:1857
0x8d9460 extract_bit_field(rtx_def*, poly_int<2u, unsigned long>, poly_int<2u,
unsigned long>, int, rtx_def*, machine_mode, machine_mode, bool, rtx_def**)
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/expmed.c:2129
0x8ee982 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/expr.c:11374
0x8ef4be expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**, bool)
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/expr.c:8713
0x8ef4be expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/expr.c:10484
0x8fe005 expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**, bool)
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/expr.c:8713
0x8fe005 expand_normal
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/expr.h:307
0x8fe005 store_field
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/expr.c:7439
0x8fd4f6 store_constructor
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/expr.c:7289
0x8fec81 expand_constructor
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/expr.c:8634
0x8eed72 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/expr.c:10819
0x8ef4be expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**, bool)
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/expr.c:8713
0x8ef4be expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/expr.c:10484
0x8f926e expand_expr_real(tree_node*, rtx_def*, machine_mode, expand_modifier,
rtx_def**, bool)
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/expr.c:8713
0x8f926e store_expr(tree_node*, rtx_def*, int, bool, bool)
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/expr.c:6064
0x8fa789 expand_assignment(tree_node*, tree_node*, bool)
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/expr.c:5796
0x7ed16a expand_gimple_stmt_1
       
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/cfgexpand.c:3945
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
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