From ec8175c1f0afe3f7758f70da240aba03a791c3a9 Mon Sep 17 00:00:00 2001
From: Tim Foley <tfoley@nvidia.com>
Date: Thu, 17 Aug 2017 14:51:09 -0700
Subject: [ir] Add support for "decorations" on instructions

The terminology here is similar to SPIR-V. For right now the only decoration exposed is a fairly brute-force one that just points back to a high-level declaration so that we can look up info on it that might affect how we print output.
---
 source/slang/emit.cpp | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

(limited to 'source/slang/emit.cpp')

diff --git a/source/slang/emit.cpp b/source/slang/emit.cpp
index 1f0436d8a..6440c63a3 100644
--- a/source/slang/emit.cpp
+++ b/source/slang/emit.cpp
@@ -3827,6 +3827,11 @@ emitDeclImpl(decl, nullptr);
 
     String getName(IRInst* inst)
     {
+        if(auto decoration = inst->findDecoration<IRHighLevelDeclDecoration>())
+        {
+            return getText(decoration->decl->getName());
+        }
+
         StringBuilder sb;
         sb << "_S";
         sb << inst->id;
@@ -4038,6 +4043,17 @@ emitDeclImpl(decl, nullptr);
         }
     }
 
+    void emitIRSemantics(
+        EmitContext*    context,
+        IRInst*         inst)
+    {
+        auto decoration = inst->findDecoration<IRHighLevelDeclDecoration>();
+        if( decoration )
+        {
+            EmitSemantics(decoration->decl);
+        }
+    }
+
     void emitIRFunc(
         EmitContext*    context,
         IRFunc*         func)
@@ -4061,6 +4077,9 @@ emitDeclImpl(decl, nullptr);
         }
         emit(")");
 
+
+        emitIRSemantics(context, func);
+
         // TODO: encode declaration vs. definition
         bool isDefinition = true;
         if(isDefinition)
@@ -4097,6 +4116,9 @@ emitDeclImpl(decl, nullptr);
         {
             auto fieldType = ff->getFieldType();
             emitIRType(context, fieldType, getName(ff));
+
+            emitIRSemantics(context, ff);
+
             emit(";\n");
         }
         emit("};\n");
@@ -4250,7 +4272,7 @@ String emitEntryPoint(
     //
     // We'll try to detect the cases here:
     //
-#if 1
+#if 0
     if(!(translationUnit->compileFlags & SLANG_COMPILE_FLAG_NO_CHECKING ))
     {
         // This seems to be case (3), because the user is asking for full
-- 
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