glslang -> SPV: Improvements in swizzles on access chains: Bug 14007 (wrong type), simplications, tests, support mixed swizzle with dynamic component selection.

git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@31277 e7fa87d3-cd2b-0410-9028-fcbf551c1848

Test/spv.accessChain.frag

@@ -0,0 +1,94 @@
+#version 420
+
+struct S 
+{
+    vec3 color;
+};
+
+layout(location = 0) out vec3 OutColor;
+
+uniform int u;
+
+void GetColor1(const S i) 
+{ 
+    OutColor += i.color.x;
+}
+
+void GetColor2(const S i, int comp)
+{ 
+    OutColor += i.color[comp];
+}
+
+void GetColor3(const S i, int comp)
+{ 
+    OutColor += i.color[comp].x;
+}
+
+void GetColor4(const S i, int comp)
+{ 
+    OutColor += i.color[comp].x;
+}
+
+void GetColor5(const S i, int comp)
+{ 
+    OutColor += i.color;
+}
+
+void GetColor6(const S i, int comp)
+{ 
+    OutColor += i.color.yx[comp];
+}
+
+void GetColor7(const S i, int comp)
+{ 
+    OutColor.xy += i.color.yxz.yx;
+}
+
+void GetColor8(const S i, int comp)
+{ 
+    OutColor += i.color.yzx.yx.x.x;
+}
+
+void GetColor9(const S i, int comp)
+{ 
+    OutColor.zxy += i.color;
+}
+
+void GetColor10(const S i, int comp)
+{ 
+    OutColor.zy += i.color.xy;
+}
+
+void GetColor11(const S i, int comp)
+{ 
+    OutColor.zxy.yx += i.color.xy;
+}
+
+void GetColor12(const S i, int comp)
+{ 
+    OutColor[comp] += i.color.x;
+}
+
+void GetColor13(const S i, int comp)
+{ 
+    // OutColor.zy[comp] += i.color.x; // not yet supported
+}
+
+void main()
+{
+    S s;
+    OutColor = vec3(0.0);
+    GetColor1(s);
+    GetColor2(s, u);
+    GetColor3(s, u);
+    GetColor4(s, u);
+    GetColor5(s, u);
+    GetColor6(s, u);
+    GetColor7(s, u);
+    GetColor8(s, u);
+    GetColor9(s, u);
+    GetColor10(s, u);
+    GetColor11(s, u);
+    GetColor12(s, u);
+    GetColor13(s, u);
+}