commit cbba4b2059ee8c68f0e26a8783722d12b0225e80
author Vedant Kumar <vsk@apple.com> Mon Aug 01 16:37:37 2016 +0000
committer Vedant Kumar <vsk@apple.com> Mon Aug 01 16:37:37 2016 +0000
tree acd62f1720b209c479b0b94861efeef7195b1b87
parent 6e0b73200938ba3ab2f5e3e54a62960ad5b7a894

[lldb][tsan] Perform one map lookup instead of two (NFC)

Differential Revision: https://reviews.llvm.org/D22983

llvm-svn: 277350

lldb/source/Plugins/InstrumentationRuntime/ThreadSanitizer/ThreadSanitizerRuntime.cpp

diff --git a/lldb/source/Plugins/InstrumentationRuntime/ThreadSanitizer/ThreadSanitizerRuntime.cpp b/lldb/source/Plugins/InstrumentationRuntime/ThreadSanitizer/ThreadSanitizerRuntime.cpp
index 1d9fab3..a08c26f 100644
--- a/lldb/source/Plugins/InstrumentationRuntime/ThreadSanitizer/ThreadSanitizerRuntime.cpp
+++ b/lldb/source/Plugins/InstrumentationRuntime/ThreadSanitizer/ThreadSanitizerRuntime.cpp
@@ -335,10 +335,11 @@
 }
 
 static user_id_t Renumber(uint64_t id, std::map<uint64_t, user_id_t> &thread_id_map) {
-    if (! thread_id_map.count(id))
+    auto IT = thread_id_map.find(id);
+    if (IT == thread_id_map.end())
         return 0;
     
-    return thread_id_map[id];
+    return IT->second;
 }
 
 StructuredData::ObjectSP