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-rw-r--r--gcc/memory-block.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/gcc/memory-block.h b/gcc/memory-block.h
index 1a495ea..8b1202b 100644
--- 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;
}