[Bug other/110895] New: [14 regression] ICE compiling gcc.c-torture/compile/pr33133.c after r14-2925-g2bae476b511dc4

[Bug other/110895] New: [14 regression] ICE compiling gcc.c-torture/compile/pr33133.c after r14-2925-g2bae476b511dc4

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110895

            Bug ID: 110895
           Summary: [14 regression] ICE compiling
                    gcc.c-torture/compile/pr33133.c after
                    r14-2925-g2bae476b511dc4
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at gcc dot gnu.org
  Target Milestone: ---

g:2bae476b511dc441bf61da8a49cca655575e7dd6, r14-2925-g2bae476b511dc4

make  -k check-gcc RUNTESTFLAGS="compile.exp=gcc.c-torture/compile/pr33133.c"
FAIL: gcc.c-torture/compile/pr33133.c   -O2  (internal compiler error:
Segmentation fault signal terminated program cc1)
FAIL: gcc.c-torture/compile/pr33133.c   -O2  (test for excess errors)
FAIL: gcc.c-torture/compile/pr33133.c   -Os  (internal compiler error:
Segmentation fault signal terminated program cc1)
FAIL: gcc.c-torture/compile/pr33133.c   -Os  (test for excess errors)
FAIL: gcc.c-torture/compile/pr33133.c   -O2 -flto -fno-use-linker-plugin
-flto-partition=none  (internal compiler error: Segmentation fault signal
terminated program cc1)
FAIL: gcc.c-torture/compile/pr33133.c   -O2 -flto -fno-use-linker-plugin
-flto-partition=none  (test for excess errors)
# of expected passes            5
# of unexpected failures        6

spawn -ignore SIGHUP /home/seurer/gcc/git/build/gcc-test/gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-test/gcc/ -fdiagnostics-plain-output -O2 -flto
-fno-use-linker-plugin -flto-partition=none -w -c -o pr33133.o
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gcc.c-torture/compile/pr33133.c
xgcc: internal compiler error: Segmentation fault signal terminated program cc1
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
See <https://gcc.gnu.org/bugs/> for instructions.
compiler exited with status 1
FAIL: gcc.c-torture/compile/pr33133.c   -O2 -flto -fno-use-linker-plugin
-flto-partition=none  (internal compiler error: Segmentation fault signal
terminated program cc1)


Hmmm.  No traceback.

commit 2bae476b511dc441bf61da8a49cca655575e7dd6 (HEAD, refs/bisect/bad)
Author: Andrew Pinski <apinski@marvell.com>
Date:   Sat Jul 29 13:00:04 2023 -0700

    Move `~X & X` and `~X | X` over to use bitwise_inverted_equal_p


So, running it from gdb I see:

#0  0x0000000010e3dab0 in operand_compare::verify_hash_value (this=<error
reading variable: Cannot access memory at address 0x7ffffbfffff8>, 
    arg0=<error reading variable: Cannot access memory at address
0x7ffffbfffff0>, arg1=<error reading variable: Cannot access memory at address
0x7ffffbffffe8>, 
    flags=<error reading variable: Cannot access memory at address
0x7ffffbffffe4>, ret=<error reading variable: Cannot access memory at address
0x7ffffbffffd8>)
    at /home/seurer/gcc/git/gcc-test/gcc/fold-const.cc:4068
#1  0x0000000010e35c60 in operand_compare::operand_equal_p (this=0x13d16e38
<default_compare_instance>, arg0=0x7ffff5c21170, arg1=0x7ffff5c21680, flags=16)
    at /home/seurer/gcc/git/gcc-test/gcc/fold-const.cc:3090
#2  0x0000000010e3db40 in operand_compare::verify_hash_value (this=0x13d16e38
<default_compare_instance>, arg0=0x7ffff5c21170, arg1=0x7ffff5c21680, flags=0,
ret=0x7ffffc00022e)
    at /home/seurer/gcc/git/gcc-test/gcc/fold-const.cc:4074
#3  0x0000000010e35c60 in operand_compare::operand_equal_p (this=0x13d16e38
<default_compare_instance>, arg0=0x7ffff5c21170, arg1=0x7ffff5c21680, flags=0)
    at /home/seurer/gcc/git/gcc-test/gcc/fold-const.cc:3090
#4  0x0000000010e3dd34 in operand_equal_p (arg0=0x7ffff5c21170,
arg1=0x7ffff5c21680, flags=0) at
/home/seurer/gcc/git/gcc-test/gcc/fold-const.cc:4105
#5  0x0000000012ca6368 in gimple_bitwise_inverted_equal_p
(expr1=0x7ffff5c21170, expr2=0x7ffff5c21680, valueize=0x119a59f8
<rpo_vn_valueize(tree_node*)>)
    at /home/seurer/gcc/git/gcc-test/gcc/gimple-match-head.cc:284
#6  0x0000000012ca642c in gimple_bitwise_inverted_equal_p
(expr1=0x7ffff5c21170, expr2=0x7ffff5c21a28, valueize=0x119a59f8
<rpo_vn_valueize(tree_node*)>)
    at /home/seurer/gcc/git/gcc-test/gcc/gimple-match-head.cc:293
#7  0x0000000012ca642c in gimple_bitwise_inverted_equal_p
(expr1=0x7ffff5c21170, expr2=0x7ffff5c21680, valueize=0x119a59f8
<rpo_vn_valueize(tree_node*)>)
    at /home/seurer/gcc/git/gcc-test/gcc/gimple-match-head.cc:293
#8  0x0000000012ca642c in gimple_bitwise_inverted_equal_p
(expr1=0x7ffff5c21170, expr2=0x7ffff5c21a28, valueize=0x119a59f8
<rpo_vn_valueize(tree_node*)>)
    at /home/seurer/gcc/git/gcc-test/gcc/gimple-match-head.cc:293
#9  0x0000000012ca642c in gimple_bitwise_inverted_equal_p
(expr1=0x7ffff5c21170, expr2=0x7ffff5c21680, valueize=0x119a59f8
<rpo_vn_valueize(tree_node*)>)
    at /home/seurer/gcc/git/gcc-test/gcc/gimple-match-head.cc:293
#10 0x0000000012ca642c in gimple_bitwise_inverted_equal_p
(expr1=0x7ffff5c21170, expr2=0x7ffff5c21a28, valueize=0x119a59f8
<rpo_vn_valueize(tree_node*)>)
    at /home/seurer/gcc/git/gcc-test/gcc/gimple-match-head.cc:293
#11 0x0000000012ca642c in gimple_bitwise_inverted_equal_p
(expr1=0x7ffff5c21170, expr2=0x7ffff5c21680, valueize=0x119a59f8
<rpo_vn_valueize(tree_node*)>)
    at /home/seurer/gcc/git/gcc-test/gcc/gimple-match-head.cc:293
#12 0x0000000012ca642c in gimple_bitwise_inverted_equal_p
(expr1=0x7ffff5c21170, expr2=0x7ffff5c21a28, valueize=0x119a59f8
<rpo_vn_valueize(tree_node*)>)
    at /home/seurer/gcc/git/gcc-test/gcc/gimple-match-head.cc:293
#13 0x0000000012ca642c in gimple_bitwise_inverted_equal_p
(expr1=0x7ffff5c21170, expr2=0x7ffff5c21680, valueize=0x119a59f8
<rpo_vn_valueize(tree_node*)>)
    at /home/seurer/gcc/git/gcc-test/gcc/gimple-match-head.cc:293
#14 0x0000000012ca642c in gimple_bitwise_inverted_equal_p
(expr1=0x7ffff5c21170, expr2=0x7ffff5c21a28, valueize=0x119a59f8
<rpo_vn_valueize(tree_node*)>)
    at /home/seurer/gcc/git/gcc-test/gcc/gimple-match-head.cc:293
#15 0x0000000012ca642c in gimple_bitwise_inverted_equal_p
(expr1=0x7ffff5c21170, expr2=0x7ffff5c21680, valueize=0x119a59f8
<rpo_vn_valueize(tree_node*)>)
    at /home/seurer/gcc/git/gcc-test/gcc/gimple-match-head.cc:293

...etc... for at least hundreds more

Looks like an infinite recursion.

[Bug other/110895] [14 regression] ICE compiling gcc.c-torture/compile/pr33133.c after r14-2925-g2bae476b511dc4

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110895

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |DUPLICATE
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 110874 where I submitted a second version of the patch this morning.

*** This bug has been marked as a duplicate of bug 110874 ***