https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85085
Bug ID: 85085
Summary: [8 regression] Test case
gfortran.dg/elemental_subroutine_3.f90 fails with
__builtin_memcpy warnings
Product: gcc
Version: 8.0
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: ---
These failures started with r247622. They were mentioned in a previous PR
which is fixed (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80643 and 80644 as
well) but there were many other test case failures and I think these just got
missed.
FAIL: gfortran.dg/elemental_subroutine_3.f90 -O1 (test for excess errors)
FAIL: gfortran.dg/elemental_subroutine_3.f90 -O2 (test for excess errors)
FAIL: gfortran.dg/elemental_subroutine_3.f90 -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions (test for excess
errors)
FAIL: gfortran.dg/elemental_subroutine_3.f90 -O3 -g (test for excess errors)
FAIL: gfortran.dg/elemental_subroutine_3.f90 -Os (test for excess errors)
spawn -ignore SIGHUP
/home/seurer/gcc/build/gcc-trunk/gcc/testsuite/gfortran9/../../gfortran
-B/home/seurer/gcc/build/gcc-trunk/gcc/testsuite/gfortran9/../../
-B/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gfortran.dg/elemental_subroutine_3.f90
-fno-diagnostics-show-caret -fdiagnostics-color=never -O1 -pedantic-errors
-B/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libatomic/.libs
-B/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libquadmath/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libquadmath/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libquadmath/.libs
-lm -o ./elemental_subroutine_3.exe
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gfortran.dg/elemental_subroutine_3.f90:37:0:
Warning: '__builtin_memcpy' reading 16 bytes from a region of size 12
[-Wstringop-overflow=]
FAIL: gfortran.dg/elemental_subroutine_3.f90 -O1 (test for excess errors)
Excess errors:
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gfortran.dg/elemental_subroutine_3.f90:37:0:
Warning: '__builtin_memcpy' reading 16 bytes from a region of size 12
[-Wstringop-overflow=]
spawn -ignore SIGHUP
/home/seurer/gcc/build/gcc-trunk/gcc/testsuite/gfortran9/../../gfortran
-B/home/seurer/gcc/build/gcc-trunk/gcc/testsuite/gfortran9/../../
-B/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gfortran.dg/elemental_subroutine_3.f90
-fno-diagnostics-show-caret -fdiagnostics-color=never -O2 -pedantic-errors
-B/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libatomic/.libs
-B/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libquadmath/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libquadmath/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libquadmath/.libs
-lm -o ./elemental_subroutine_3.exe
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gfortran.dg/elemental_subroutine_3.f90:37:0:
Warning: '__builtin_memcpy' reading 16 bytes from a region of size 12
[-Wstringop-overflow=]
FAIL: gfortran.dg/elemental_subroutine_3.f90 -O2 (test for excess errors)
Excess errors:
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gfortran.dg/elemental_subroutine_3.f90:37:0:
Warning: '__builtin_memcpy' reading 16 bytes from a region of size 12
[-Wstringop-overflow=]
spawn -ignore SIGHUP
/home/seurer/gcc/build/gcc-trunk/gcc/testsuite/gfortran9/../../gfortran
-B/home/seurer/gcc/build/gcc-trunk/gcc/testsuite/gfortran9/../../
-B/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gfortran.dg/elemental_subroutine_3.f90
-fno-diagnostics-show-caret -fdiagnostics-color=never -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions -pedantic-errors
-B/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libatomic/.libs
-B/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libquadmath/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libquadmath/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libquadmath/.libs
-lm -o ./elemental_subroutine_3.exe
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gfortran.dg/elemental_subroutine_3.f90:37:0:
Warning: '__builtin_memcpy' reading 12 bytes from a region of size 8
[-Wstringop-overflow=]
FAIL: gfortran.dg/elemental_subroutine_3.f90 -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions (test for excess
errors)
Excess errors:
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gfortran.dg/elemental_subroutine_3.f90:37:0:
Warning: '__builtin_memcpy' reading 12 bytes from a region of size 8
[-Wstringop-overflow=]
spawn -ignore SIGHUP
/home/seurer/gcc/build/gcc-trunk/gcc/testsuite/gfortran9/../../gfortran
-B/home/seurer/gcc/build/gcc-trunk/gcc/testsuite/gfortran9/../../
-B/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gfortran.dg/elemental_subroutine_3.f90
-fno-diagnostics-show-caret -fdiagnostics-color=never -O3 -g -pedantic-errors
-B/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libatomic/.libs
-B/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libquadmath/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libquadmath/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libquadmath/.libs
-lm -o ./elemental_subroutine_3.exe
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gfortran.dg/elemental_subroutine_3.f90:37:0:
Warning: '__builtin_memcpy' reading 16 bytes from a region of size 12
[-Wstringop-overflow=]
FAIL: gfortran.dg/elemental_subroutine_3.f90 -O3 -g (test for excess errors)
Excess errors:
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gfortran.dg/elemental_subroutine_3.f90:37:0:
Warning: '__builtin_memcpy' reading 16 bytes from a region of size 12
[-Wstringop-overflow=]
spawn -ignore SIGHUP
/home/seurer/gcc/build/gcc-trunk/gcc/testsuite/gfortran9/../../gfortran
-B/home/seurer/gcc/build/gcc-trunk/gcc/testsuite/gfortran9/../../
-B/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gfortran.dg/elemental_subroutine_3.f90
-fno-diagnostics-show-caret -fdiagnostics-color=never -Os -pedantic-errors
-B/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libgfortran/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libatomic/.libs
-B/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libquadmath/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libquadmath/.libs
-L/home/seurer/gcc/build/gcc-trunk/powerpc64le-unknown-linux-gnu/./libquadmath/.libs
-lm -o ./elemental_subroutine_3.exe
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gfortran.dg/elemental_subroutine_3.f90:37:0:
Warning: '__builtin_memcpy' reading 16 bytes from a region of size 12
[-Wstringop-overflow=]
FAIL: gfortran.dg/elemental_subroutine_3.f90 -Os (test for excess errors)
Excess errors:
/home/seurer/gcc/gcc-trunk/gcc/testsuite/gfortran.dg/elemental_subroutine_3.f90:37:0:
Warning: '__builtin_memcpy' reading 16 bytes from a region of size 12
[-Wstringop-overflow=]
