Fix problems with sandboxing and the ARM integrated assembler.

src/IceAssemblerARM32.h

Index: src/IceAssemblerARM32.h
diff --git a/src/IceAssemblerARM32.h b/src/IceAssemblerARM32.h
index 705bfe0948c5631c9f31e186425924aae285bb4c..4a11eb4ed59057bfa2e0bc9d228bef46a2c86d1e 100644
--- a/src/IceAssemblerARM32.h
+++ b/src/IceAssemblerARM32.h
@@ -135,10 +135,7 @@ public:
     return llvm::ArrayRef<uint8_t>(Padding, 4);
   }
 
-  void padWithNop(intptr_t Padding) override {
-    (void)Padding;
-    llvm_unreachable("Not yet implemented.");
-  }
+  void padWithNop(intptr_t Padding) override;
 
   Ice::Label *getCfgNodeLabel(SizeT NodeNumber) override {
     assert(NodeNumber < CfgNodeLabels.size());
@@ -239,6 +236,8 @@ public:
 
   void mvn(const Operand *OpRd, const Operand *OpScc, CondARM32::Cond Cond);
 
+  void nop(const CondARM32::Cond = CondARM32::AL);

[Jim Stichnoth, 2015/12/08 19:54:58]

Does nop *really* need to be predicated?

[Karl, 2015/12/08 20:49:36]

Was following DART code. However, I agree that I can't think of any reason.
Removing until need is found.

+
   void orr(const Operand *OpRd, const Operand *OpRn, const Operand *OpSrc1,
            bool SetFlags, CondARM32::Cond Cond);