Hotfix/improve glsl semantic conversion (#965)

* Specify glsl semantic format - such that conversions are possible from hlsl sematics.

* Comment improvements. Give appropriate type in glsl for sv_tessfactor. Note that sv_tessfactor is not functional though.

* Work in progress for comparison of types.

* * Fix type comparison issues around the hash.
* Fix tests whos output changed with use of isTypeEqual

1 files changed, 11 insertions, 0 deletions

diff --git a/source/slang/ir.h b/source/slang/ir.h
index 61cae5847..47c672a99 100644
--- a/source/slang/ir.h
+++ b/source/slang/ir.h
@@ -504,6 +504,13 @@ struct IRBoolType : IRBasicType
 
 SIMPLE_IR_TYPE(StringType, Type)
 
+
+// True if types are equal
+// Note compares nominal types by name alone 
+bool isTypeEqual(IRType* a, IRType* b);
+
+void findAllInstsBreadthFirst(IRInst* inst, List<IRInst*>& outInsts);
+
 // Constant Instructions
 
 typedef int64_t IRIntegerValue;
@@ -540,6 +547,10 @@ struct IRConstant : IRInst
 
         /// True if constants are equal
     bool equal(IRConstant& rhs);
+        /// True if the value is equal.
+        /// Does *NOT* compare if the type is equal. 
+    bool isValueEqual(IRConstant& rhs);
+
         /// Get the hash 
     int getHashCode();