[Bug middle-end/111868] New: [14 regression] many ICEs after r14-4710

[Bug middle-end/111868] New: [14 regression] many ICEs after r14-4710

[seurer at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111868

            Bug ID: 111868
           Summary: [14 regression] many ICEs after r14-4710
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at gcc dot gnu.org
  Target Milestone: ---

g:60c231cb65807fb963624acc4f82d2935e305f93, r14-4710-g60c231cb65807f

FAIL: libgomp.fortran/pr100981-2.f90   -O1  (internal compiler error:
verify_ssa failed)
FAIL: libgomp.fortran/pr100981-2.f90   -O1  (test for excess errors)
FAIL: libgomp.fortran/pr100981-2.f90   -O2  (internal compiler error:
verify_ssa failed)
FAIL: libgomp.fortran/pr100981-2.f90   -O2  (test for excess errors)
FAIL: libgomp.fortran/pr100981-2.f90   -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions  (internal compiler error: verify_ssa
failed)
FAIL: libgomp.fortran/pr100981-2.f90   -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: libgomp.fortran/pr100981-2.f90   -O3 -g  (internal compiler error:
verify_ssa failed)
FAIL: libgomp.fortran/pr100981-2.f90   -O3 -g  (test for excess errors)
FAIL: libgomp.fortran/pr100981-2.f90   -Os  (internal compiler error:
verify_ssa failed)
FAIL: libgomp.fortran/pr100981-2.f90   -Os  (test for excess errors)
FAIL: libgomp.fortran/simd3.f90   -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions  (internal compiler error: verify_ssa
failed)
FAIL: libgomp.fortran/simd3.f90   -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: libgomp.fortran/simd3.f90   -O3 -g  (internal compiler error: verify_ssa
failed)
FAIL: libgomp.fortran/simd3.f90   -O3 -g  (test for excess errors)


spawn -ignore SIGHUP
/home/seurer/gcc/git/build/gcc-test/gcc/testsuite/gfortran/../../gfortran
-B/home/seurer/gcc/git/build/gcc-test/gcc/testsuite/gfortran/../../
-B/home/seurer/gcc/git/build/gcc-test/powerpc64le-unknown-linux-gnu/./libgfortran/
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gfortran.dg/vect/pr100981-1.f90
-fdiagnostics-plain-output -fdiagnostics-plain-output -O -O2 -ftree-vectorize
-fvect-cost-model=unlimited -fdump-tree-vect-details -maltivec -mpower9-vector
-O3 -ftree-parallelize-loops=2 -fno-signed-zeros -fno-trapping-math -S -o
pr100981-1.s
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gfortran.dg/vect/pr100981-1.f90:5:23:
Error: stmt with wrong VUSE
# VUSE <.MEM_17(D)>
_82 = REALPART_EXPR <(*cx_22(D))[_83]>;
expected .MEM_39
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gfortran.dg/vect/pr100981-1.f90:5:23:
Error: stmt with wrong VUSE
# VUSE <.MEM_17(D)>
_80 = IMAGPART_EXPR <(*cx_22(D))[_83]>;
expected .MEM_39
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gfortran.dg/vect/pr100981-1.f90:5:23:
Error: PHI node with wrong VUSE on edge from BB 34
.MEM_23 = PHI <.MEM_17(D)(34), .MEM_17(D)(33)>
expected .MEM_39
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gfortran.dg/vect/pr100981-1.f90:5:23:
Error: PHI node with wrong VUSE on edge from BB 33
.MEM_23 = PHI <.MEM_17(D)(34), .MEM_17(D)(33)>
expected .MEM_39
during GIMPLE pass: vect
dump file: pr100981-1.f90.175t.vect
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gfortran.dg/vect/pr100981-1.f90:5:23:
internal compiler error: verify_ssa failed
0x110e9d2f verify_ssa(bool, bool)
        /home/seurer/gcc/git/gcc-test/gcc/tree-ssa.cc:1203
0x10bd279f execute_function_todo
        /home/seurer/gcc/git/gcc-test/gcc/passes.cc:2095
0x10bd35ab do_per_function
        /home/seurer/gcc/git/gcc-test/gcc/passes.cc:1687
0x10bd37cb execute_todo
        /home/seurer/gcc/git/gcc-test/gcc/passes.cc:2142


commit 60c231cb65807fb963624acc4f82d2935e305f93 (HEAD)
Author: Tamar Christina <tamar.christina@arm.com>
Date:   Wed Oct 18 09:03:06 2023 +0100

    middle-end: maintain LCSSA throughout loop peeling

[Bug middle-end/111868] [14 regression] many ICEs after r14-4710

[tnfchris at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111868

Tamar Christina <tnfchris at gcc dot gnu.org> changed:

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

--- Comment #1 from Tamar Christina <tnfchris at gcc dot gnu.org> ---
Duplicate of https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111860 patch going
through regression testing.

*** This bug has been marked as a duplicate of bug 111860 ***