Fix use of valgrind API

gcc/
	PR middle-end/67649
	* memory-block.h (memory_block_pool::allocate): Use valgrind API to
	mark the block as accessible.

From-SVN: r228033

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 1627255..3c79492 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2015-09-23  Mikhail Maltsev  <maltsevm@gmail.com>
+
+       PR middle-end/67649
+       * memory-block.h (memory_block_pool::allocate): Use valgrind API to
+       mark the block as accessible.
+
 2015-09-22  Segher Boessenkool  <segher@kernel.crashing.org>
 
        * function.c (thread_prologue_and_epilogue_insns): Delete

diff --git a/gcc/memory-block.h b/gcc/memory-block.h
index 1a495ea..8b1202b 100644 (file)
--- a/gcc/memory-block.h
+++ b/gcc/memory-block.h
@@ -57,6 +57,7 @@ memory_block_pool::allocate ()
 
   void *result = instance.m_blocks;
   instance.m_blocks = instance.m_blocks->m_next;
+  VALGRIND_DISCARD (VALGRIND_MAKE_MEM_UNDEFINED (result, block_size));
   return result;
 }