[msan] Make msan-handle-icmp-exact=0 by default.

50% slowdown on one of the specs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173678 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Instrumentation/MemorySanitizer.cpp b/lib/Transforms/Instrumentation/MemorySanitizer.cpp
index a329dcc6bee2a241a0777a79c3685b8e4614be0c..e92892d2887bfb880f5010ed7da1fab3ef1fc37d 100644 (file)
--- a/lib/Transforms/Instrumentation/MemorySanitizer.cpp
+++ b/lib/Transforms/Instrumentation/MemorySanitizer.cpp
@@ -129,7 +129,7 @@ static cl::opt<bool> ClHandleICmp("msan-handle-icmp",
 
 static cl::opt<bool> ClHandleICmpExact("msan-handle-icmp-exact",
        cl::desc("exact handling of relational integer ICmp"),
-       cl::Hidden, cl::init(true));
+       cl::Hidden, cl::init(false));
 
 static cl::opt<bool> ClStoreCleanOrigin("msan-store-clean-origin",
        cl::desc("store origin for clean (fully initialized) values"),