Synchronize the NaCl DataLayout strings with the ones in clang.

Patch by Derek Schuff.

llvm-svn: 197640
diff --git a/llvm/lib/Target/X86/X86TargetMachine.cpp b/llvm/lib/Target/X86/X86TargetMachine.cpp
index 64816e4..04c1d7e 100644
--- a/llvm/lib/Target/X86/X86TargetMachine.cpp
+++ b/llvm/lib/Target/X86/X86TargetMachine.cpp
@@ -39,13 +39,16 @@
     Ret += "-p:32:32";
 
   // Some ABIs align 64 bit integers and doubles to 64 bits, others to 32.
-  if (ST.is64Bit() || ST.isTargetCygMing() || ST.isTargetWindows())
+  if (ST.is64Bit() || ST.isTargetCygMing() || ST.isTargetWindows() ||
+      ST.isTargetNaCl())
     Ret += "-i64:64";
   else
     Ret += "-f64:32:64";
 
   // Some ABIs align long double to 128 bits, others to 32.
-  if (ST.is64Bit() || ST.isTargetDarwin())
+  if (ST.isTargetNaCl())
+    ; // No f80
+  else if (ST.is64Bit() || ST.isTargetDarwin())
     Ret += "-f80:128";
   else
     Ret += "-f80:32";