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From: "seurer at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug other/110669] New: [24 regression] ICE in
 gcc.dg/torture/pr105132.c since r14-2515-gb77161e60bce7b
Date: Fri, 14 Jul 2023 17:38:34 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110669

            Bug ID: 110669
           Summary: [24 regression] ICE in gcc.dg/torture/pr105132.c since
                    r14-2515-gb77161e60bce7b
           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:b77161e60bce7b4416319defe5f141f14fd375c4, r14-2515-gb77161e60bce7b
make  -k check-gcc RUNTESTFLAGS=3D"dg-torture.exp=3Dgcc.dg/torture/pr105132=
.c"
FAIL: gcc.dg/torture/pr105132.c   -O1  (internal compiler error: in
gimple_phi_arg_def_from_edge, at gimple.h:4699)
FAIL: gcc.dg/torture/pr105132.c   -O1  (test for excess errors)
# of expected passes            7
# of unexpected failures        2

spawn -ignore SIGHUP /home/seurer/gcc/git/build/gcc-test/gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-test/gcc/
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gcc.dg/torture/pr105132.c
-fdiagnostics-plain-output -O1 -S -o pr105132.s
during GIMPLE pass: sccp
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gcc.dg/torture/pr105132.c: In
function 'd':
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gcc.dg/torture/pr105132.c:7:6:
internal compiler error: in gimple_phi_arg_def_from_edge, at gimple.h:4699
0x10e0f357 gimple_phi_arg_def_from_edge(gphi const*, edge_def const*)
        /home/seurer/gcc/git/gcc-test/gcc/gimple.h:4699
0x10e0f357 gimple_phi_arg_def_from_edge(gphi const*, edge_def const*)
        /home/seurer/gcc/git/gcc-test/gcc/gimple.h:4697
0x10e0f357 final_value_replacement_loop(loop*)
        /home/seurer/gcc/git/gcc-test/gcc/tree-scalar-evolution.cc:3732
0x10f0e01f execute
        /home/seurer/gcc/git/gcc-test/gcc/tree-ssa-loop.cc:411

commit b77161e60bce7b4416319defe5f141f14fd375c4 (HEAD)
Author: Richard Biener <rguenther@suse.de>
Date:   Fri Jul 14 10:01:39 2023 +0200

    Provide extra checking for phi argument access from edge=