[Bug middle-end/106519] New: [13 Regression] internal compiler error: in gimple_phi_arg, at gimple.h:4594 by r13-1950

[hjl.tools at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106519

            Bug ID: 106519
           Summary: [13 Regression] internal compiler error: in
                    gimple_phi_arg, at gimple.h:4594 by r13-1950
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
                CC: tamar.christina at arm dot com
  Target Milestone: ---

On x86-64, r13-1950 caused

FAIL: gcc.dg/analyzer/pr96653.c (internal compiler error: in gimple_phi_arg, at
gimple.h:4594)
FAIL: gcc.dg/analyzer/pr96653.c (test for excess errors)
FAIL: g++.dg/warn/uninit-pr105562.C  -std=gnu++14 (internal compiler error: in
gimple_phi_arg, at gimple.h:4594)
FAIL: g++.dg/warn/uninit-pr105562.C  -std=gnu++14 (test for excess errors)
FAIL: g++.dg/warn/uninit-pr105562.C  -std=gnu++17 (internal compiler error: in
gimple_phi_arg, at gimple.h:4594)
FAIL: g++.dg/warn/uninit-pr105562.C  -std=gnu++17 (test for excess errors)
FAIL: g++.dg/warn/uninit-pr105562.C  -std=gnu++20 (internal compiler error: in
gimple_phi_arg, at gimple.h:4594)
FAIL: g++.dg/warn/uninit-pr105562.C  -std=gnu++20 (test for excess errors)
FAIL: gfortran.dg/make_unit.f90   -O1  (internal compiler error: in
gimple_phi_arg, at gimple.h:4594)
FAIL: gfortran.dg/make_unit.f90   -O1  (internal compiler error: in
gimple_phi_arg, at gimple.h:4594)
FAIL: gfortran.dg/make_unit.f90   -O1  (internal compiler error: in
gimple_phi_arg, at gimple.h:4594)
FAIL: gfortran.dg/make_unit.f90   -O1  (test for excess errors)
FAIL: gfortran.dg/make_unit.f90   -O1  (test for excess errors)
FAIL: gfortran.dg/make_unit.f90   -O1  (test for excess errors)

with -m32.