Test/hlsl.swizzle.frag - third_party/glslang - Git at Google

 static float4 AmbientColor = float4(1, 0.5, 0, 1);

 float4 ShaderFunction(float4 input) : COLOR0
 {
     return input.wwyx * float4(AmbientColor.z);
 }
	static float4 AmbientColor = float4(1, 0.5, 0, 1);

	float4 ShaderFunction(float4 input) : COLOR0
	{
	return input.wwyx * float4(AmbientColor.z);
	}