From 2055d540c5dd420448a6924d784d5aed0efcd93d Mon Sep 17 00:00:00 2001
From: Tim Foley <tfoley@nvidia.com>
Date: Mon, 11 Sep 2017 09:33:46 -0700
Subject: Support IR-based codegen for a few more examples.

The main interesting change here is around support for lowering of calls to "subscript" operations (what a C++ programmer would think of as `operator[]`).

An important infrastructure change here was to add an explicit AST-node representation for a "static member expression" which we use whenever a member is looked up in a type as opposed to a value. The implementation of  this probably isn't robust yet, but it turns out to be important to be able to tell such cases apart.
---
 source/slang/ir.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'source/slang/ir.h')

diff --git a/source/slang/ir.h b/source/slang/ir.h
index 51755f89f..1561d15a7 100644
--- a/source/slang/ir.h
+++ b/source/slang/ir.h
@@ -307,6 +307,13 @@ struct IRTextureType : IRType
     IRType* getElementType() { return (IRType*) elementType.usedValue; }
 };
 
+struct IRBufferType : IRType
+{
+    IRUse elementType;
+    IRType* getElementType() { return (IRType*) elementType.usedValue; }
+};
+
+
 struct IRUniformBufferType : IRType
 {
     IRUse elementType;
@@ -326,6 +333,12 @@ struct IRLoad : IRInst
     IRUse ptr;
 };
 
+struct IRStore : IRInst
+{
+    IRUse ptr;
+    IRUse val;
+};
+
 struct IRStructField;
 struct IRFieldExtract : IRInst
 {
@@ -541,6 +554,10 @@ struct IRBuilder
     IRInst* emitLoad(
         IRValue*    ptr);
 
+    IRInst* emitStore(
+        IRValue*    dstPtr,
+        IRValue*    srcVal);
+
     IRInst* emitFieldExtract(
         IRType*         type,
         IRValue*        base,
-- 
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