The gl_primitiveID built in type is int, but can be uint on HLSL. The change trys to cast for glsl targets to avoid glslang producing a type error. (shader-slang#962)

jsmall-zzz · web-flow · commit 18169353d093 · 2019-05-15T13:20:15.000-04:00
diff --git a/source/slang/ir-glsl-legalize.cpp b/source/slang/ir-glsl-legalize.cpp
@@ -353,6 +353,9 @@ GLSLSystemValueInfo* getGLSLSystemValueInfo(
     else if(semanticName == "sv_primitiveid")
     {
         name = "gl_PrimitiveID";
+
+        auto builder = context->getBuilder();
+        requiredType = builder->getBasicType(BaseType::Int);
     }
     else if (semanticName == "sv_rendertargetarrayindex")
     {

Original file line number	Diff line number	Diff line change
`@@ -353,6 +353,9 @@ GLSLSystemValueInfo* getGLSLSystemValueInfo(`
`353`	`353`	`else if(semanticName == "sv_primitiveid")`
`354`	`354`	`{`
`355`	`355`	`name = "gl_PrimitiveID";`
	`356`	`+`
	`357`	`+ auto builder = context->getBuilder();`
	`358`	`+ requiredType = builder->getBasicType(BaseType::Int);`
`356`	`359`	`}`
`357`	`360`	`else if (semanticName == "sv_rendertargetarrayindex")`
`358`	`361`	`{`