Update clang to r339409.

Change-Id: I800772d2d838223be1f6b40d490c4591b937fca2
diff --git a/linux-x64/clang/include/llvm/Target/TargetOptions.h b/linux-x64/clang/include/llvm/Target/TargetOptions.h
index 844031f..07ed773 100644
--- a/linux-x64/clang/include/llvm/Target/TargetOptions.h
+++ b/linux-x64/clang/include/llvm/Target/TargetOptions.h
@@ -108,8 +108,10 @@
           DisableIntegratedAS(false), RelaxELFRelocations(false),
           FunctionSections(false), DataSections(false),
           UniqueSectionNames(true), TrapUnreachable(false),
-          EmulatedTLS(false), ExplicitEmulatedTLS(false),
-          EnableIPRA(false), EmitStackSizeSection(false) {}
+          NoTrapAfterNoreturn(false), EmulatedTLS(false),
+          ExplicitEmulatedTLS(false), EnableIPRA(false),
+          EmitStackSizeSection(false), EnableMachineOutliner(false),
+          SupportsDefaultOutlining(false), EmitAddrsig(false) {}
 
     /// PrintMachineCode - This flag is enabled when the -print-machineinstrs
     /// option is specified on the command line, and should enable debugging
@@ -213,6 +215,10 @@
     /// Emit target-specific trap instruction for 'unreachable' IR instructions.
     unsigned TrapUnreachable : 1;
 
+    /// Do not emit a trap instruction for 'unreachable' IR instructions behind
+    /// noreturn calls, even if TrapUnreachable is true.
+    unsigned NoTrapAfterNoreturn : 1;
+
     /// EmulatedTLS - This flag enables emulated TLS model, using emutls
     /// function in the runtime library..
     unsigned EmulatedTLS : 1;
@@ -226,6 +232,15 @@
     /// Emit section containing metadata on function stack sizes.
     unsigned EmitStackSizeSection : 1;
 
+    /// Enables the MachineOutliner pass.
+    unsigned EnableMachineOutliner : 1;
+
+    /// Set if the target supports default outlining behaviour.
+    unsigned SupportsDefaultOutlining : 1;
+
+    /// Emit address-significance table.
+    unsigned EmitAddrsig : 1;
+
     /// FloatABIType - This setting is set by -float-abi=xxx option is specfied
     /// on the command line. This setting may either be Default, Soft, or Hard.
     /// Default selects the target's default behavior. Soft selects the ABI for