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=]

Andreas.

-- 
Andreas Schwab, SUSE Labs, sch...@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE  1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."

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