Andreas Schwab <sch...@suse.de> writes:
> I see these regressions on ia64:
>
> FAIL: c-c++-common/Wsizeof-pointer-memaccess2.c -std=gnu++11 (test for
> excess errors)
> Excess errors:
> /usr/local/gcc/gcc-20170508/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:11:53:
> warning: 'void* __builtin_memcpy(void*, const void*, long unsigned int)'
> reading 8 bytes from a region of size 1 [-Wstringop-overflow=]
> /usr/local/gcc/gcc-20170508/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:12:55:
> warning: 'void* __builtin_memcpy(void*, const void*, long unsigned int)'
> reading 8 bytes from a region of size 1 [-Wstringop-overflow=]
> /usr/local/gcc/gcc-20170508/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:11:53:
> warning: 'void* __builtin_memcpy(void*, const void*, long unsigned int)'
> reading 8 bytes from a region of size 1 [-Wstringop-overflow=]
> /usr/local/gcc/gcc-20170508/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:12:55:
> warning: 'void* __builtin_memcpy(void*, const void*, long unsigned int)'
> reading 8 bytes from a region of size 1 [-Wstringop-overflow=]
> /usr/local/gcc/gcc-20170508/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:11:53:
> warning: 'void* __builtin_memcpy(void*, const void*, long unsigned int)'
> reading 8 bytes from a region of size 1 [-Wstringop-overflow=]
> /usr/local/gcc/gcc-20170508/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:12:55:
> warning: 'void* __builtin_memcpy(void*, const void*, long unsigned int)'
> reading 8 bytes from a region of size 1 [-Wstringop-overflow=]
> /usr/local/gcc/gcc-20170508/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:11:53:
> warning: 'void* __builtin_memcpy(void*, const void*, long unsigned int)'
> reading 8 bytes from a region of size 1 [-Wstringop-overflow=]
> /usr/local/gcc/gcc-20170508/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:12:55:
> warning: 'void* __builtin_memcpy(void*, const void*, long unsigned int)'
> reading 8 bytes from a region of size 1 [-Wstringop-overflow=]
The testcase also regresses on sparc-sun-solaris2.12:
32-bit:
FAIL: c-c++-common/Wsizeof-pointer-memaccess2.c -Wc++-compat (test for excess
errors)
Excess errors:
/vol/gcc/src/hg/trunk/local/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:11:30:
warning: '__builtin_memcpy' reading 4 bytes from a region of size 0
[-Wstringop-overflow=]
/vol/gcc/src/hg/trunk/local/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:12:31:
warning: '__builtin_memcpy' reading 4 bytes from a region of size 0
[-Wstringop-overflow=]
/vol/gcc/src/hg/trunk/local/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:11:30:
warning: '__builtin_memcpy' reading 4 bytes from a region of size 0
[-Wstringop-overflow=]
/vol/gcc/src/hg/trunk/local/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:12:31:
warning: '__builtin_memcpy' reading 4 bytes from a region of size 0
[-Wstringop-overflow=]
/vol/gcc/src/hg/trunk/local/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:11:30:
warning: '__builtin_memcpy' reading 4 bytes from a region of size 1
[-Wstringop-overflow=]
/vol/gcc/src/hg/trunk/local/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:12:31:
warning: '__builtin_memcpy' reading 4 bytes from a region of size 1
[-Wstringop-overflow=]
/vol/gcc/src/hg/trunk/local/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:11:30:
warning: '__builtin_memcpy' reading 4 bytes from a region of size 1
[-Wstringop-overflow=]
/vol/gcc/src/hg/trunk/local/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:12:31:
warning: '__builtin_memcpy' reading 4 bytes from a region of size 1
[-Wstringop-overflow=]
64-bit:
Excess errors:
/vol/gcc/src/hg/trunk/local/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:11:30:
warning: '__builtin_memcpy' reading 8 bytes from a region of size 0
[-Wstringop-overflow=]
/vol/gcc/src/hg/trunk/local/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:12:31:
warning: '__builtin_memcpy' reading 8 bytes from a region of size 0
[-Wstringop-overflow=]
/vol/gcc/src/hg/trunk/local/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:11:30:
warning: '__builtin_memcpy' reading 8 bytes from a region of size 0
[-Wstringop-overflow=]
/vol/gcc/src/hg/trunk/local/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:12:31:
warning: '__builtin_memcpy' reading 8 bytes from a region of size 0
[-Wstringop-overflow=]
/vol/gcc/src/hg/trunk/local/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:11:30:
warning: '__builtin_memcpy' reading 8 bytes from a region of size 1
[-Wstringop-overflow=]
/vol/gcc/src/hg/trunk/local/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:12:31:
warning: '__builtin_memcpy' reading 8 bytes from a region of size 1
[-Wstringop-overflow=]
/vol/gcc/src/hg/trunk/local/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:11:30:
warning: '__builtin_memcpy' reading 8 bytes from a region of size 1
[-Wstringop-overflow=]
/vol/gcc/src/hg/trunk/local/gcc/testsuite/c-c++-common/Wsizeof-pointer-memaccess2.c:12:31:
warning: '__builtin_memcpy' reading 8 bytes from a region of size 1
[-Wstringop-overflow=]
Rainer
--
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University
