diff options
| author | Jakub Jelinek <jakub@redhat.com> | 2018-02-16 10:05:35 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2018-02-16 10:05:35 +0100 |
| commit | ab67039ccd31de6d0192d4560ff971ff0af81726 (patch) | |
| tree | 0263d95f48f4201cf663f022f24d2e4e85fd6d6d /gcc/vec.h | |
| parent | 33006d53fd3adf2baae85b625e3ec99908b7a31c (diff) | |
| download | gcc-ab67039ccd31de6d0192d4560ff971ff0af81726.zip gcc-ab67039ccd31de6d0192d4560ff971ff0af81726.tar.gz gcc-ab67039ccd31de6d0192d4560ff971ff0af81726.tar.bz2 | |
re PR bootstrap/84405 (Fails to bootstrap with GCC 4.1.2, GCC 4.2.4)
PR bootstrap/84405
* system.h (BROKEN_VALUE_INITIALIZATION): Define for GCC < 4.3.
* vec.h (vec_default_construct): Use memset instead of placement new
if BROKEN_VALUE_INITIALIZATION is defined.
* hash-table.h (hash_table<Descriptor, Allocator>::empty_slow): Use
memset instead of value initialization if BROKEN_VALUE_INITIALIZATION
is defined.
From-SVN: r257726
Diffstat (limited to 'gcc/vec.h')
| -rw-r--r-- | gcc/vec.h | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -490,8 +490,12 @@ template <typename T> inline void vec_default_construct (T *dst, unsigned n) { +#ifndef BROKEN_VALUE_INITIALIZATION for ( ; n; ++dst, --n) ::new (static_cast<void*>(dst)) T (); +#else + memset (dst, '\0', sizeof (T) * n); +#endif } /* Copy-construct N elements in DST from *SRC. */ |