Attachment 349372 Details for Bug 188402 – Patch

[patch] Patch

bug-188402-20180910201610.patch (text/plain), 28.29 KB, created by Thomas Denney on 2018-09-10 20:16:11 PDT

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Creator: Thomas Denney

Created: 2018-09-10 20:16:11 PDT

Size: 28.29 KB

patch

obsolete

>Subversion Revision: 235753
>diff --git a/Tools/ChangeLog b/Tools/ChangeLog
>index bab3dac97469911601769e07e0c8ee359b627ca8..59cf6b2b8602e8c5a2e26aa8687eb5125288c0bc 100644
>--- a/Tools/ChangeLog
>+++ b/Tools/ChangeLog
>@@ -1,3 +1,45 @@
>+2018-09-10  Thomas Denney  <tdenney@apple.com>
>+
>+        [WHLSL] Local variables should be statically allocated
>+        https://bugs.webkit.org/show_bug.cgi?id=188402
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        An additional preparation stage is now performed so that all local
>+        variables and function parameters are allocated in a single struct at
>+        entry points. A pointer to this struct is then passed for function
>+        calls.
>+
>+        * WebGPUShadingLanguageRI/All.js: Update dependencies.
>+        * WebGPUShadingLanguageRI/AllocateAtEntryPoints.js: Added new stage.
>+        * WebGPUShadingLanguageRI/CallExpression.js:
>+        (CallExpression.prototype.set argumentList): Add setter because
>+        allocateAtEntryPoints needs to change this.
>+        * WebGPUShadingLanguageRI/EBufferBuilder.js: Remove a redundant
>+        constructor that wasn't used anywhere.
>+        * WebGPUShadingLanguageRI/Func.js:
>+        (Func.prototype.set parameters): Add setter.
>+        * WebGPUShadingLanguageRI/FuncDef.js:
>+        (FuncDef.prototype.set body): Ditto.
>+        * WebGPUShadingLanguageRI/Prepare.js:
>+        (let.prepare): Add call to allocateAtEntryPoints. This call cannot
>+        happen any earlier because it depends on having types for call
>+        arguments. It could happen at any later point, but it is useful to
>+        apply the remaining checks (particularly those in Checker) to the
>+        transformed program.
>+        * WebGPUShadingLanguageRI/Rewriter.js:
>+        (Rewriter.prototype.visitReturn): Resolve issue where the return
>+        statement's function wasn't copied. A null check is required as the
>+        Rewriter might be used before this property is set.
>+        * WebGPUShadingLanguageRI/SPIRV.html: Update dependencies.
>+        * WebGPUShadingLanguageRI/SynthesizeStructAccessors.js: Abstracted logic
>+        into a separate function so that allocateAtEntryPoints can create the
>+        accessors for the struct type it introduces.
>+        * WebGPUShadingLanguageRI/Test.html: Update dependencies.
>+        * WebGPUShadingLanguageRI/Test.js: Add new tests to verify the static
>+        allocation transform works safely.
>+        * WebGPUShadingLanguageRI/index.html: Update dependencies.
>+
> 2018-09-10  Thomas Denney  <tdenney@apple.com>
> 
>         [WHLSL] Inlining should be optional
>diff --git a/Tools/WebGPUShadingLanguageRI/All.js b/Tools/WebGPUShadingLanguageRI/All.js
>index 3c2c48742001115a1713483a1f23ce28668bb9c6..e2910d79d6c2359b763161980316aff0942270f3 100644
>--- a/Tools/WebGPUShadingLanguageRI/All.js
>+++ b/Tools/WebGPUShadingLanguageRI/All.js
>@@ -37,6 +37,7 @@ load("PropertyAccessExpression.js");
> load("NativeType.js");
> 
> load("AddressSpace.js");
>+load("AllocateAtEntryPoints.js");
> load("AnonymousVariable.js");
> load("ArrayRefType.js");
> load("ArrayType.js");
>diff --git a/Tools/WebGPUShadingLanguageRI/AllocateAtEntryPoints.js b/Tools/WebGPUShadingLanguageRI/AllocateAtEntryPoints.js
>new file mode 100644
>index 0000000000000000000000000000000000000000..055f08652613b654cc03a30cff5bc675a56b1b52
>--- /dev/null
>+++ b/Tools/WebGPUShadingLanguageRI/AllocateAtEntryPoints.js
>@@ -0,0 +1,217 @@
>+/*
>+ * Copyright (C) 2018 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
>+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
>+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
>+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
>+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
>+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
>+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
>+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
>+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
>+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+"use strict";
>+
>+function allocateAtEntryPoints(program)
>+{
>+    const entryPoints = [];
>+    class OnlyVisitFuncDefsThatAreEntryPoints extends Visitor {
>+        visitFuncDef(node)
>+        {
>+            if (node.isEntryPoint)
>+                entryPoints.push(node);
>+        }
>+    }
>+    program.visit(new OnlyVisitFuncDefsThatAreEntryPoints());
>+
>+    const allVariablesAndFunctionParameters = new Set();
>+    class FindAllVariablesAndFunctionParameters extends Visitor {
>+        constructor(currentFunc)
>+        {
>+            super();
>+            this._currentFunc = currentFunc;
>+        }
>+
>+        visitCallExpression(node)
>+        {
>+            super.visitCallExpression(node);
>+            if (node.func instanceof FuncDef)
>+                node.func.visit(new FindAllVariablesAndFunctionParameters(node.func));
>+        }
>+
>+        visitVariableDecl(node)
>+        {
>+            node._func = this._currentFunc;
>+            allVariablesAndFunctionParameters.add(node);
>+            super.visitVariableDecl(node);
>+        }
>+
>+        visitFuncParameter(node)
>+        {
>+            node._func = this._currentFunc;
>+            if (!this._currentFunc.isEntryPoint)
>+                allVariablesAndFunctionParameters.add(node);
>+        }
>+    }
>+
>+    for (let entryPoint of entryPoints)
>+        entryPoint.visit(new FindAllVariablesAndFunctionParameters(entryPoint));
>+
>+    if (!allVariablesAndFunctionParameters.size)
>+        return;
>+
>+    const globalStructType = new StructType(entryPoints[0].origin, null);
>+    program.add(globalStructType);
>+    // Checker requires that types that appear in the program are wrapped in TypeRefs.
>+    const globalStructTypeRef = TypeRef.wrap(globalStructType);
>+    const ptrToGlobalStructType = new PtrType(entryPoints[0].origin, "thread", globalStructTypeRef);
>+    program.add(ptrToGlobalStructType);
>+    const ptrToGlobalStructTypeRef = TypeRef.wrap(ptrToGlobalStructType);
>+
>+    let counter = 0;
>+    const varToFieldMap = new Map();
>+    for (let varOrParam of allVariablesAndFunctionParameters) {
>+        const fieldName = `field${counter++}_${varOrParam._func.name}_${varOrParam.name}`;
>+        globalStructType.add(new Field(varOrParam.origin, fieldName, varOrParam.type));
>+        varToFieldMap.set(varOrParam, fieldName);
>+    }
>+
>+    // All other struct accessors will have been synthesized at this point (they have to be synthesized earlier for call resolution).
>+    synthesizeStructAccessorsForStructType(program, globalStructType);
>+
>+    const visitedFunctionSet = new Set();
>+
>+    function updateFunction(func)
>+    {
>+        class UpdateFunctions extends Rewriter {
>+            constructor(func)
>+            {
>+                super();
>+                this._func = func;
>+                visitedFunctionSet.add(this.func);
>+                if (this.func.isEntryPoint)
>+                    this._addVariableDeclaration();
>+                else
>+                    this._reconfigureParameters();
>+                this.func.body = this.func._body.visit(this);
>+            }
>+
>+            _addVariableDeclaration()
>+            {
>+                this._variableDecl = new VariableDecl(this.func.origin, null, globalStructTypeRef, null);
>+                this._variableRef = new MakePtrExpression(this.func.origin, VariableRef.wrap(this.variableDecl));
>+                this.func.body.statements.unshift(this.variableDecl);
>+            }
>+
>+            _reconfigureParameters()
>+            {
>+                const funcParam = new FuncParameter(this.func.origin, null, ptrToGlobalStructTypeRef);
>+                this._variableRef = VariableRef.wrap(funcParam);
>+                this.func._newParameters = [ funcParam ];
>+            }
>+
>+            get func()
>+            {
>+                return this._func;
>+            }
>+
>+            get variableDecl()
>+            {
>+                return this._variableDecl;
>+            }
>+
>+            get globalStructVariableRef()
>+            {
>+                return this._variableRef;
>+            }
>+
>+            _callExpressionForVariable(node)
>+            {
>+                const fieldName = varToFieldMap.get(node);
>+                const functionName = `operator&.${fieldName}`;
>+                const possibleAndOverloads = program.globalNameContext.get(Func, functionName);
>+                const callExpressionResolution = CallExpression.resolve(node.origin, possibleAndOverloads, functionName, [ this.globalStructVariableRef ], [ ptrToGlobalStructTypeRef ]);
>+                return callExpressionResolution.call;
>+            }
>+
>+            _dereferencedCallExpressionForVariable(node)
>+            {
>+                return new DereferenceExpression(node.origin, this._callExpressionForVariable(node), node.type, "thread");
>+            }
>+
>+            visitVariableRef(node)
>+            {
>+                if (!varToFieldMap.has(node.variable))
>+                    return super.visitVariableRef(node);
>+                return this._dereferencedCallExpressionForVariable(node.variable);
>+            }
>+
>+            visitVariableDecl(node)
>+            {
>+                if (node.initializer)
>+                    return new Assignment(node.origin, this._dereferencedCallExpressionForVariable(node), node.initializer.visit(this), node.type);
>+                else if (node == this.variableDecl)
>+                    return node;
>+                return new Block(node.origin);
>+            }
>+
>+            visitMakePtrExpression(node)
>+            {
>+                if (node.lValue instanceof VariableRef && varToFieldMap.has(node.lValue.variable))
>+                    return this._callExpressionForVariable(node.lValue.variable);
>+                return super.visitMakePtrExpression(node);
>+            }
>+
>+            visitCallExpression(node)
>+            {
>+                node = super.visitCallExpression(node);
>+                if (node.func instanceof FuncDef) {
>+                    updateFunction(node.func);
>+
>+                    const anonymousVariables = [];
>+                    const evaluationExpressions = [];
>+                    const copyExpressions = [];
>+                    for (let i = node.argumentList.length; i--;) {
>+                        const type = node.func.parameters[i].type;
>+                        const anonymousVariable = new AnonymousVariable(node.origin, type);
>+                        anonymousVariables.push(anonymousVariable);
>+                        evaluationExpressions.push(new Assignment(node.origin, VariableRef.wrap(anonymousVariable), node.argumentList[i], type));
>+                        copyExpressions.push(new Assignment(node.origin, this._dereferencedCallExpressionForVariable(node.func.parameters[i]), VariableRef.wrap(anonymousVariable), type));
>+                    }
>+
>+                    node.argumentList = [ this.globalStructVariableRef ];
>+                    return new CommaExpression(node.origin, anonymousVariables.concat(evaluationExpressions, copyExpressions, [ node ]));
>+                }
>+
>+                return node;
>+            }
>+        }
>+
>+        if (!visitedFunctionSet.has(func))
>+            new UpdateFunctions(func);
>+    }
>+
>+    for (let entryPoint of entryPoints)
>+        updateFunction(entryPoint);
>+
>+    class UpdateParams extends Visitor {
>+        visitFuncDef(node)
>+        {
>+            if (node._newParameters)
>+                node.parameters = node._newParameters;
>+        }
>+    }
>+    program.visit(new UpdateParams());
>+}
>diff --git a/Tools/WebGPUShadingLanguageRI/CallExpression.js b/Tools/WebGPUShadingLanguageRI/CallExpression.js
>index 5fbdd505f79d4b326e093e0fb76cd375d0a2c5ba..4e4d65f0913804f4d0e70c002bf6314060b0ee2e 100644
>--- a/Tools/WebGPUShadingLanguageRI/CallExpression.js
>+++ b/Tools/WebGPUShadingLanguageRI/CallExpression.js
>@@ -36,7 +36,14 @@ class CallExpression extends Expression {
>     }
>     
>     get name() { return this._name; }
>+
>     get argumentList() { return this._argumentList; }
>+
>+    set argumentList(newValue)
>+    {
>+        this._argumentList = newValue;
>+    }
>+
>     get isCast() { return this._isCast; }
>     get returnType() { return this._returnType; }
>     
>diff --git a/Tools/WebGPUShadingLanguageRI/EBufferBuilder.js b/Tools/WebGPUShadingLanguageRI/EBufferBuilder.js
>index a3bee1fa2475d1f56b305f56d8db336ea8a4a717..a7f3616d9a1f5c17064c61b7684f2428fb11675b 100644
>--- a/Tools/WebGPUShadingLanguageRI/EBufferBuilder.js
>+++ b/Tools/WebGPUShadingLanguageRI/EBufferBuilder.js
>@@ -25,12 +25,6 @@
> "use strict";
> 
> class EBufferBuilder extends Visitor {
>-    constructor(program)
>-    {
>-        super();
>-        this._program = program;
>-    }
>-    
>     _createEPtr(type)
>     {
>         if (type.size == null)
>diff --git a/Tools/WebGPUShadingLanguageRI/Func.js b/Tools/WebGPUShadingLanguageRI/Func.js
>index cbc2c333f666f687c07d33dc0188cc9846a3f6d2..4f5890607b1a291718234afa3d6e066f1d9905d5 100644
>--- a/Tools/WebGPUShadingLanguageRI/Func.js
>+++ b/Tools/WebGPUShadingLanguageRI/Func.js
>@@ -54,6 +54,11 @@ class Func extends Node {
>     get isEntryPoint() { return this.shaderType != null; }
>     get returnTypeForOverloadResolution() { return this.isCast ? this.returnType : null; }
>     
>+    set parameters(newValue)
>+    {
>+        this._parameters = newValue;
>+    }
>+
>     get kind() { return Func; }
>     
>     toDeclString()
>diff --git a/Tools/WebGPUShadingLanguageRI/FuncDef.js b/Tools/WebGPUShadingLanguageRI/FuncDef.js
>index d68e4030e59a571182c604b3e2bd37a704958323..3016b1325917dd72eaa7ded85a6eb27e580298ac 100644
>--- a/Tools/WebGPUShadingLanguageRI/FuncDef.js
>+++ b/Tools/WebGPUShadingLanguageRI/FuncDef.js
>@@ -33,7 +33,12 @@ class FuncDef extends Func {
>     }
> 
>     get body() { return this._body; }
>-    
>+
>+    set body(newBody)
>+    {
>+        this._body = newBody;
>+    }
>+
>     rewrite(rewriter)
>     {
>         this._returnType = this._returnType.visit(rewriter);
>diff --git a/Tools/WebGPUShadingLanguageRI/Prepare.js b/Tools/WebGPUShadingLanguageRI/Prepare.js
>index 13ebde80bd91ccb65468681292526334dd3887e8..8304d6d5849b7419a01ede182a3c6d3898a4792e 100644
>--- a/Tools/WebGPUShadingLanguageRI/Prepare.js
>+++ b/Tools/WebGPUShadingLanguageRI/Prepare.js
>@@ -53,7 +53,8 @@ let prepare = (() => {
>         resolveNamesInFunctions(program, nameResolver);
>         resolveTypeDefsInFunctions(program);
>         checkTypesWithArguments(program);
>-        
>+        allocateAtEntryPoints(program);
>+
>         check(program);
>         checkLiteralTypes(program);
>         resolveProperties(program);
>diff --git a/Tools/WebGPUShadingLanguageRI/Rewriter.js b/Tools/WebGPUShadingLanguageRI/Rewriter.js
>index 3025893a06a3f59032b9f6cd43f124651f026cb9..267e7a33234af372f1e134ee63f96cb1c7f78163 100644
>--- a/Tools/WebGPUShadingLanguageRI/Rewriter.js
>+++ b/Tools/WebGPUShadingLanguageRI/Rewriter.js
>@@ -233,7 +233,10 @@ class Rewriter {
>     
>     visitReturn(node)
>     {
>-        return new Return(node.origin, Node.visit(node.value, this));
>+        const returnStatement = new Return(node.origin, Node.visit(node.value, this));
>+        if (node.func)
>+            returnStatement.func = node.func;
>+        return returnStatement;
>     }
>     
>     visitContinue(node)
>diff --git a/Tools/WebGPUShadingLanguageRI/SPIRV.html b/Tools/WebGPUShadingLanguageRI/SPIRV.html
>index 0d2371005e710cdc60f033da5a511c49ae005c36..89186711ff5c010f5720e1688ff3ca5dfdee24ea 100644
>--- a/Tools/WebGPUShadingLanguageRI/SPIRV.html
>+++ b/Tools/WebGPUShadingLanguageRI/SPIRV.html
>@@ -20,6 +20,7 @@ td {
>     <script src="NativeType.js"></script>
> 
>     <script src="AddressSpace.js"></script>
>+    <script src="AllocateAtEntryPoints.js"></script>
>     <script src="AnonymousVariable.js"></script>
>     <script src="ArrayRefType.js"></script>
>     <script src="ArrayType.js"></script>
>diff --git a/Tools/WebGPUShadingLanguageRI/SynthesizeStructAccessors.js b/Tools/WebGPUShadingLanguageRI/SynthesizeStructAccessors.js
>index a0181468a25ed4c09050d7bf1d61f44ed3a0aa66..2f6dd285c821eea0e9489a850817bf550d3af678 100644
>--- a/Tools/WebGPUShadingLanguageRI/SynthesizeStructAccessors.js
>+++ b/Tools/WebGPUShadingLanguageRI/SynthesizeStructAccessors.js
>@@ -20,95 +20,100 @@
>  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
>  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
>  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
>- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
>+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
>  */
> "use strict";
> 
>-function synthesizeStructAccessors(program)
>+function synthesizeStructAccessorsForStructType(program, type)
> {
>-    for (let type of program.types.values()) {
>-        if (!(type instanceof StructType))
>-            continue;
>-        
>-        for (let field of type.fields) {
>-            function setupImplementationData(nativeFunc, implementation)
>-            {
>-                nativeFunc.visitImplementationData = (implementationData, visitor) => {
>-                    // Visiting the type first ensures that the struct layout builder figures out the field's
>-                    // offset.
>-                    implementationData.type.visit(visitor);
>-                };
>+    for (let field of type.fields) {
>+        function setupImplementationData(nativeFunc, implementation)
>+        {
>+            nativeFunc.visitImplementationData = (implementationData, visitor) => {
>+                // Visiting the type first ensures that the struct layout builder figures out the field's
>+                // offset.
>+                implementationData.type.visit(visitor);
>+            };
> 
>-                nativeFunc.implementation = (argumentList, node) => {
>-                    return implementation(argumentList, field.offset, type.size, field.type.size);
>-                };
>-            }
>-            
>-            function createFieldType()
>-            {
>-                return field.type.visit(new Rewriter());
>-            }
>-            
>-            function createTypeRef()
>-            {
>-                return TypeRef.wrap(type);
>-            }
>-            
>-            let isCast = false;
>-            let shaderType;
>-            let nativeFunc;
>+            nativeFunc.implementation = (argumentList, node) => {
>+                return implementation(argumentList, field.offset, type.size, field.type.size);
>+            };
>+        }
> 
>-            // The getter: operator.field
>-            nativeFunc = new NativeFunc(
>-                field.origin, "operator." + field.name, createFieldType(),
>-                [new FuncParameter(field.origin, null, createTypeRef())], isCast, shaderType);
>-            setupImplementationData(nativeFunc, ([base], offset, structSize, fieldSize) => {
>-                let result = new EPtr(new EBuffer(fieldSize), 0);
>-                result.copyFrom(base.plus(offset), fieldSize);
>-                return result;
>-            });
>-            program.add(nativeFunc);
>-            
>-            // The setter: operator.field=
>+        function createFieldType()
>+        {
>+            return field.type.visit(new Rewriter());
>+        }
>+
>+        function createTypeRef()
>+        {
>+            return TypeRef.wrap(type);
>+        }
>+
>+        let isCast = false;
>+        let shaderType;
>+        let nativeFunc;
>+
>+        // The getter: operator.field
>+        nativeFunc = new NativeFunc(
>+            field.origin, "operator." + field.name, createFieldType(),
>+            [new FuncParameter(field.origin, null, createTypeRef())], isCast, shaderType);
>+        setupImplementationData(nativeFunc, ([base], offset, structSize, fieldSize) => {
>+            let result = new EPtr(new EBuffer(fieldSize), 0);
>+            result.copyFrom(base.plus(offset), fieldSize);
>+            return result;
>+        });
>+        program.add(nativeFunc);
>+
>+        // The setter: operator.field=
>+        nativeFunc = new NativeFunc(
>+            field.origin, "operator." + field.name + "=", createTypeRef(),
>+            [
>+                new FuncParameter(field.origin, null, createTypeRef()),
>+                new FuncParameter(field.origin, null, createFieldType())
>+            ],
>+            isCast, shaderType);
>+        setupImplementationData(nativeFunc, ([base, value], offset, structSize, fieldSize) => {
>+            let result = new EPtr(new EBuffer(structSize), 0);
>+            result.copyFrom(base, structSize);
>+            result.plus(offset).copyFrom(value, fieldSize);
>+            return result;
>+        });
>+        program.add(nativeFunc);
>+
>+        // The ander: operator&.field
>+        function setupAnder(addressSpace)
>+        {
>             nativeFunc = new NativeFunc(
>-                field.origin, "operator." + field.name + "=", createTypeRef(),
>+                field.origin, "operator&." + field.name, new PtrType(field.origin, addressSpace, createFieldType()),
>                 [
>-                    new FuncParameter(field.origin, null, createTypeRef()),
>-                    new FuncParameter(field.origin, null, createFieldType())
>+                    new FuncParameter(
>+                        field.origin, null,
>+                        new PtrType(field.origin, addressSpace, createTypeRef()))
>                 ],
>                 isCast, shaderType);
>-            setupImplementationData(nativeFunc, ([base, value], offset, structSize, fieldSize) => {
>-                let result = new EPtr(new EBuffer(structSize), 0);
>-                result.copyFrom(base, structSize);
>-                result.plus(offset).copyFrom(value, fieldSize);
>-                return result;
>+            setupImplementationData(nativeFunc, ([base], offset, structSize, fieldSize) => {
>+                base = base.loadValue();
>+                if (!base)
>+                    throw new WTrapError(field.origin.originString, "Null dereference");
>+                return EPtr.box(base.plus(offset));
>             });
>             program.add(nativeFunc);
>-            
>-            // The ander: operator&.field
>-            function setupAnder(addressSpace)
>-            {
>-                nativeFunc = new NativeFunc(
>-                    field.origin, "operator&." + field.name, new PtrType(field.origin, addressSpace, createFieldType()),
>-                    [
>-                        new FuncParameter(
>-                            field.origin, null,
>-                            new PtrType(field.origin, addressSpace, createTypeRef()))
>-                    ],
>-                    isCast, shaderType);
>-                setupImplementationData(nativeFunc, ([base], offset, structSize, fieldSize) => {
>-                    base = base.loadValue();
>-                    if (!base)
>-                        throw new WTrapError(node.origin.originString, "Null dereference");
>-                    return EPtr.box(base.plus(offset));
>-                });
>-                program.add(nativeFunc);
>-            }
>-            
>-            setupAnder("thread");
>-            setupAnder("threadgroup");
>-            setupAnder("device");
>-            setupAnder("constant");
>         }
>+
>+        setupAnder("thread");
>+        setupAnder("threadgroup");
>+        setupAnder("device");
>+        setupAnder("constant");
>+    }
>+}
>+
>+function synthesizeStructAccessors(program)
>+{
>+    for (let type of program.types.values()) {
>+        if (!(type instanceof StructType))
>+            continue;
>+
>+        synthesizeStructAccessorsForStructType(program, type);
>     }
> }
>diff --git a/Tools/WebGPUShadingLanguageRI/Test.html b/Tools/WebGPUShadingLanguageRI/Test.html
>index c12e5d99dc74a6f1901c95df91d34a05ae855e1c..98e3851f1699aa6ce68bfd5ab8461ae97deed1c1 100644
>--- a/Tools/WebGPUShadingLanguageRI/Test.html
>+++ b/Tools/WebGPUShadingLanguageRI/Test.html
>@@ -14,6 +14,7 @@
> <script src="NativeType.js"></script>
> 
> <script src="AddressSpace.js"></script>
>+<script src="AllocateAtEntryPoints.js"></script>
> <script src="AnonymousVariable.js"></script>
> <script src="ArrayRefType.js"></script>
> <script src="ArrayType.js"></script>
>diff --git a/Tools/WebGPUShadingLanguageRI/Test.js b/Tools/WebGPUShadingLanguageRI/Test.js
>index 2bcea7d7da3cb382f1aabe2167ef3a7891392333..4d85284da6c4838a9d59a88d6589c3bb547f9d3b 100644
>--- a/Tools/WebGPUShadingLanguageRI/Test.js
>+++ b/Tools/WebGPUShadingLanguageRI/Test.js
>@@ -7924,6 +7924,152 @@ tests.inliningDoesntProduceAliasingIssues = () => {
>     checkInt(program, callFunction(program, "foo", []), 20);
> }
> 
>+tests.returnReferenceToParameter = () => {
>+    let program = doPrep(`
>+        test int foo(bool condition)
>+        {
>+            return *bar(condition, 1, 2);
>+        }
>+
>+        thread int* bar(bool condition, int a, int b)
>+        {
>+            return condition ? &a : &b;
>+        }
>+    `);
>+
>+    checkInt(program, callFunction(program, "foo", [ makeBool(program, true) ]), 1);
>+    checkInt(program, callFunction(program, "foo", [ makeBool(program, false) ]), 2);
>+}
>+
>+tests.returnReferenceToParameterWithDifferentFunctions = () => {
>+    let program = doPrep(`
>+        test int foo()
>+        {
>+            return *bar(10) + *baz(20);
>+        }
>+
>+        thread int* bar(int x)
>+        {
>+            return &x;
>+        }
>+
>+        thread int* baz(int y)
>+        {
>+            return &y;
>+        }
>+    `);
>+
>+    checkInt(program, callFunction(program, "foo", []), 30);
>+}
>+
>+tests.returnReferenceToSameParameter = () => {
>+    let program = doPrep(`
>+        test int foo()
>+        {
>+            return plus(bar(5), bar(7));
>+        }
>+
>+        int plus(thread int* x, thread int* y)
>+        {
>+            return *x + *y;
>+        }
>+
>+        thread int* bar(int x)
>+        {
>+            return &x;
>+        }
>+    `);
>+
>+    checkInt(program, callFunction(program, "foo", []), 10);
>+}
>+
>+tests.returnReferenceToLocalVariable = () => {
>+    let program = doPrep(`
>+        test int foo()
>+        {
>+            return *bar();
>+        }
>+
>+        thread int* bar()
>+        {
>+            int a = 42;
>+            return &a;
>+        }
>+    `);
>+
>+    checkInt(program, callFunction(program, "foo", []), 42);
>+}
>+
>+tests.returnReferenceToLocalVariableWithNesting = () => {
>+    let program = doPrep(`
>+        test int foo()
>+        {
>+            return *bar() + *baz();
>+        }
>+
>+        thread int* bar()
>+        {
>+            int a = 20;
>+            return &a;
>+        }
>+
>+        thread int* baz()
>+        {
>+            int a = 22;
>+            return &a;
>+        }
>+    `);
>+
>+    checkInt(program, callFunction(program, "foo", []), 42);
>+}
>+
>+tests.convertPtrToArrayRef = () => {
>+    let program = doPrep(`
>+        test int foo()
>+        {
>+            return bar()[0];
>+        }
>+
>+        thread int[] bar()
>+        {
>+            int x = 42;
>+            return @(&x);
>+        }
>+    `);
>+
>+    checkInt(program, callFunction(program, "foo", []), 42);
>+}
>+
>+tests.convertLocalVariableToArrayRef = () => {
>+    let program = doPrep(`
>+        test int foo()
>+        {
>+            return bar()[0];
>+        }
>+
>+        thread int[] bar()
>+        {
>+            int x = 42;
>+            return @x;
>+        }
>+    `);
>+
>+    checkInt(program, callFunction(program, "foo", []), 42);
>+}
>+
>+tests.referenceTakenToLocalVariableInEntryPointShouldntMoveAnything = () => {
>+    let program = doPrep(`
>+        test int foo()
>+        {
>+            int a = 42;
>+            thread int* b = &a;
>+            return *b;
>+        }
>+    `);
>+
>+    checkInt(program, callFunction(program, "foo", []), 42);
>+};
>+
> okToTest = true;
> 
> let testFilter = /.*/; // run everything by default
>diff --git a/Tools/WebGPUShadingLanguageRI/index.html b/Tools/WebGPUShadingLanguageRI/index.html
>index 24415f33a1709b2e0e6d5bece67aa895306b89be..08f4ed5b0931b6bfb3a422897837eef8a1ac3290 100644
>--- a/Tools/WebGPUShadingLanguageRI/index.html
>+++ b/Tools/WebGPUShadingLanguageRI/index.html
>@@ -14,6 +14,7 @@
> <script src="NativeType.js"></script>
> 
> <script src="AddressSpace.js"></script>
>+<script src="AllocateAtEntryPoints.js"></script>
> <script src="AnonymousVariable.js"></script>
> <script src="ArrayRefType.js"></script>
> <script src="ArrayType.js"></script>

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Attachments on bug 188402: 348987 | 349358 | 349372 | 350096 | 350175 | 350419 | 350421