Strip unknown attributes during bitcode translation.
am: bcb03e5437

Change-Id: I7f3db7071417db424530aa00b0883a1d05f355ab
diff --git a/lib/Compiler.cpp b/lib/Compiler.cpp
index 5000fa1..44f23c5 100644
--- a/lib/Compiler.cpp
+++ b/lib/Compiler.cpp
@@ -269,8 +269,9 @@
 
   // These passes have to come after LTO, since we don't want to examine
   // functions that are never actually called.
-  if (llvm::Triple(getTargetMachine().getTargetTriple()).getArch() == llvm::Triple::x86_64)
-    transformPasses.add(createRSX86_64CallConvPass());  // Add pass to correct calling convention for X86-64.
+  if (llvm::Triple(getTargetMachine().getTargetTriple()).getArch() == llvm::Triple::x86_64 ||
+      llvm::Triple(getTargetMachine().getTargetTriple()).getArch() == llvm::Triple::mips64el)
+    transformPasses.add(createRSX86_64CallConvPass());  // Add pass to correct calling convention for X86-64 and mips64.
   transformPasses.add(createRSIsThreadablePass());      // Add pass to mark script as threadable.
 
   // RSEmbedInfoPass needs to come after we have scanned for non-threadable
diff --git a/lib/Script.cpp b/lib/Script.cpp
index 950d82a..d84012c 100644
--- a/lib/Script.cpp
+++ b/lib/Script.cpp
@@ -66,6 +66,8 @@
   //   violate any compiler version guarantees, so the right thing to
   //   do is retain the compiler version from source, which specifies
   //   which guarantees source (and hence the merged code) satisfies.
+  //   See frameworks/rs/driver/README.txt regarding libclcore_source
+  //   obeying compiler version guarantees.
   // - optimization level in source and libclcore_source is meaningful.
   //   We simply define the optimization level in the linked code to
   //   be the optimization level of source.