From: Chris Lattner <sabre@nondot.org>
Date: Fri, 12 May 2006 00:03:12 +0000 (+0000)
Subject: For extra sanity checking, fill free'd memory with garbage so we know that
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=a5f0419b4e7415a579e08f918194b37537cd0e29;p=oota-llvm.git

For extra sanity checking, fill free'd memory with garbage so we know that
people aren't reusing machine code buffers at all.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28228 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/ExecutionEngine/JIT/JITEmitter.cpp b/lib/ExecutionEngine/JIT/JITEmitter.cpp
index efc2062a544..2a62bd3557c 100644
--- a/lib/ExecutionEngine/JIT/JITEmitter.cpp
+++ b/lib/ExecutionEngine/JIT/JITEmitter.cpp
@@ -321,6 +321,9 @@ namespace {
       MemoryRangeHeader *MemRange = I->second;
       assert(MemRange->ThisAllocated && "Block isn't allocated!");
       
+      // Fill the buffer with garbage!
+      DEBUG(memset(MemRange+1, 0xCD, MemRange->BlockSize-sizeof(*MemRange)));
+      
       // Free the memory.
       FreeMemoryList = MemRange->FreeBlock(FreeMemoryList);