Add hybrid assembler concept to ARM assembler.

src/IceClFlags.h

Index: src/IceClFlags.h
diff --git a/src/IceClFlags.h b/src/IceClFlags.h
index d4d7737d844f5f3b5e4503314d9095ec415c3c6e..24f77b30c92dbde85a87056dc45bed125b45dd84 100644
--- a/src/IceClFlags.h
+++ b/src/IceClFlags.h
@@ -46,6 +46,9 @@ public:
     AllowExternDefinedSymbols = NewValue;
   }
 
+  bool getAllowHybridAssembly() const { return AllowHybridAssembly; }
+  void setAllowHybridAssembly(bool NewValue) { AllowHybridAssembly = NewValue; }
+
   bool getAllowIacaMarks() const { return AllowIacaMarks; }
   void setAllowIacaMarks(bool NewValue) { AllowIacaMarks = NewValue; }
 
@@ -249,6 +252,7 @@ public:
 private:
   bool AllowErrorRecovery;
   bool AllowExternDefinedSymbols;
+  bool AllowHybridAssembly;

[Jim Stichnoth, 2015/10/21 01:13:38]

Possible suggestion, if you agree.  It might be useful to have a flag to
explicitly disallow the hybrid form.  This would let you translate a big test
like spec2k with filetype=iasm and fail if you've missed any cases.  Or,
translate the cross tests that way, as the cross tests do a pretty good job of
testing vector instructions which spec2k absolutely does not do.

   bool AllowIacaMarks;
   bool AllowUninitializedGlobals;
   bool DataSections;