diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/vec.h | 14 |
2 files changed, 16 insertions, 4 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index fcb9410..3ebbc1c 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2016-12-15 Martin Sebor <msebor@redhat.com> + + PR bootstrap/78817 + * vec.h (vec<T, va_heap, vl_ptr>::safe_grow_cleared): Assert + a pointer is non-null. + 2016-12-15 Andrew Senkevich <andrew.senkevich@intel.com> * config/i386/avx512bwintrin.h: Add new k-mask intrinsics. @@ -1607,10 +1607,16 @@ inline void vec<T, va_heap, vl_ptr>::safe_grow_cleared (unsigned len MEM_STAT_DECL) { unsigned oldlen = length (); - size_t sz = sizeof (T) * (len - oldlen); - safe_grow (len PASS_MEM_STAT); - if (sz != 0) - memset (&(address ()[oldlen]), 0, sz); + gcc_checking_assert (oldlen <= len); + + if (size_t sz = sizeof (T) * (len - oldlen)) + { + safe_grow (len PASS_MEM_STAT); + + T *p = address (); + gcc_assert (p != NULL); + memset (p + oldlen, 0, sz); + } } |