Subzero: Randomize immediates by constant blinding or pooling.

src/IceGlobalContext.h

Index: src/IceGlobalContext.h
diff --git a/src/IceGlobalContext.h b/src/IceGlobalContext.h
index b67a232fc658770fb49b580f99add84c23812346..01a102a21df925ecef38d73197d16fcf9f1601b0 100644
--- a/src/IceGlobalContext.h
+++ b/src/IceGlobalContext.h
@@ -85,10 +85,17 @@ public:
   Constant *getConstantUndef(Type Ty);
   // Returns a zero value.
   Constant *getConstantZero(Type Ty);
+
+  // Adds the given constant to the list of pooled immediates.
+  void addConstantPooledImmediate(IceString Name, Constant *Immediate);

[Jim Stichnoth, 2014/08/13 23:30:25]

Use const IceString & here and all the way up.

Also, can you use const Constant *Immediate?

[wala, 2014/08/16 00:07:12]

const IceString &: Done.

const Constant *: Doesn't work, getImmediatePool() returns a ConstantList whose
elements are non-const.

+
   // getConstantPool() returns a copy of the constant pool for
   // constants of a given type.
   ConstantList getConstantPool(Type Ty) const;
 
+  // getImmediatePool() returns the list of pooled immediates.
+  ConstantList getImmediatePool() const;
+
   const ClFlags &getFlags() const { return Flags; }
 
   // Allocate data of type T using the global allocator.