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alloc-pool.h (base_pool_allocator): Use placement new. 

2015-10-26  Richard Biener  <rguenther@suse.de>

	* alloc-pool.h (base_pool_allocator): Use placement new.
	(base_pool_allocator::remove): Likewise.  Compute size outside of
	flag_checking.

From-SVN: r229312
This commit is contained in:
Richard Biener 2015-10-26 09:48:32 +00:00 committed by Richard Biener
parent 543a9bcd21
commit 5929c65918
2 changed files with 10 additions and 3 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2015-10-26 Richard Biener <rguenther@suse.de>
* alloc-pool.h (base_pool_allocator): Use placement new.
(base_pool_allocator::remove): Likewise. Compute size outside of
flag_checking.
2015-10-26 Richard Sandiford <richard.sandiford@arm.com>
* builtins.c (do_real_to_int_conversion): New function.

7
gcc/alloc-pool.h
View File

@ -363,7 +363,7 @@ base_pool_allocator <TBlockAllocator>::allocate ()
/* Make the block. */
block = reinterpret_cast<char *> (TBlockAllocator::allocate ());
block_header = (allocation_pool_list*) block;
block_header = new (block) allocation_pool_list;
block += align_eight (sizeof (allocation_pool_list));
/* Throw it on the block list. */
@ -414,6 +414,8 @@ template <typename TBlockAllocator>
inline void
base_pool_allocator <TBlockAllocator>::remove (void *object)
{
int size = m_elt_size - offsetof (allocation_object, u.data);
if (flag_checking)
{
gcc_assert (m_initialized);
@ -423,14 +425,13 @@ base_pool_allocator <TBlockAllocator>::remove (void *object)
/* Check whether the PTR was allocated from POOL. */
&& m_id == allocation_object::get_instance (object)->id);
int size = m_elt_size - offsetof (allocation_object, u.data);
memset (object, 0xaf, size);
}
/* Mark the element to be free. */
allocation_object::get_instance (object)->id = 0;
allocation_pool_list *header = (allocation_pool_list*) object;
allocation_pool_list *header = new (object) allocation_pool_list;
header->next = m_returned_free_list;
m_returned_free_list = header;
VALGRIND_DISCARD (VALGRIND_MAKE_MEM_NOACCESS (object, size));