Include the glsl global name in entrypoint arguments.

naga/src/front/glsl/variables.rs

@@ -65,7 +65,7 @@ impl Frontend {
 
         let idx = self.entry_args.len();
         self.entry_args.push(EntryArg {
-            name: None,
+            name: Some(name.into()),
             binding: Binding::BuiltIn(data.builtin),
             handle,
             storage: data.storage,

naga/tests/out/wgsl/210-bevy-2d-shader.vert.wgsl

@@ -12,7 +12,7 @@ struct Sprite_size {
 
 struct VertexOutput {
     @location(0) v_Uv: vec2<f32>,
-    @builtin(position) member: vec4<f32>,
+    @builtin(position) gl_Position: vec4<f32>,
 }
 
 var<private> Vertex_Position_1: vec3<f32>;

naga/tests/out/wgsl/210-bevy-shader.vert.wgsl

@@ -10,7 +10,7 @@ struct VertexOutput {
     @location(0) v_Position: vec3<f32>,
     @location(1) v_Normal: vec3<f32>,
     @location(2) v_Uv: vec2<f32>,
-    @builtin(position) member: vec4<f32>,
+    @builtin(position) gl_Position: vec4<f32>,
 }
 
 var<private> Vertex_Position_1: vec3<f32>;

naga/tests/out/wgsl/246-collatz.comp.wgsl

@@ -4,7 +4,7 @@ struct PrimeIndices {
 
 @group(0) @binding(0) 
 var<storage, read_write> global: PrimeIndices;
-var<private> gl_GlobalInvocationID: vec3<u32>;
+var<private> gl_GlobalInvocationID_1: vec3<u32>;
 
 fn collatz_iterations(n: u32) -> u32 {
     var n_1: u32;
@@ -41,7 +41,7 @@ fn collatz_iterations(n: u32) -> u32 {
 fn main_1() {
     var index: u32;
 
-    let _e3 = gl_GlobalInvocationID;
+    let _e3 = gl_GlobalInvocationID_1;
     index = _e3.x;
     let _e6 = index;
     let _e8 = index;
@@ -53,8 +53,8 @@ fn main_1() {
 }
 
 @compute @workgroup_size(1, 1, 1) 
-fn main(@builtin(global_invocation_id) param: vec3<u32>) {
-    gl_GlobalInvocationID = param;
+fn main(@builtin(global_invocation_id) gl_GlobalInvocationID: vec3<u32>) {
+    gl_GlobalInvocationID_1 = gl_GlobalInvocationID;
     main_1();
     return;
 }

naga/tests/out/wgsl/800-out-of-bounds-panic.vert.wgsl

@@ -8,7 +8,7 @@ struct VertexPushConstants {
 
 struct VertexOutput {
     @location(0) frag_color: vec4<f32>,
-    @builtin(position) member: vec4<f32>,
+    @builtin(position) gl_Position: vec4<f32>,
 }
 
 @group(0) @binding(0) 

naga/tests/out/wgsl/bevy-pbr.frag.wgsl

@@ -93,7 +93,7 @@ var<uniform> global_7: StandardMaterial_emissive;
 var StandardMaterial_emissive_texture: texture_2d<f32>;
 @group(3) @binding(14) 
 var StandardMaterial_emissive_texture_sampler: sampler;
-var<private> gl_FrontFacing: bool;
+var<private> gl_FrontFacing_1: bool;
 
 fn pow5_(x: f32) -> f32 {
     var x_1: f32;
@@ -746,7 +746,7 @@ fn main_1() {
     let _e78 = T;
     let _e80 = v_WorldTangent_1;
     B = (cross(_e77, _e78) * _e80.w);
-    let _e85 = gl_FrontFacing;
+    let _e85 = gl_FrontFacing_1;
     if _e85 {
         let _e86 = N_2;
         local = _e86;
@@ -756,7 +756,7 @@ fn main_1() {
     }
     let _e90 = local;
     N_2 = _e90;
-    let _e91 = gl_FrontFacing;
+    let _e91 = gl_FrontFacing_1;
     if _e91 {
         let _e92 = T;
         local_1 = _e92;
@@ -766,7 +766,7 @@ fn main_1() {
     }
     let _e96 = local_1;
     T = _e96;
-    let _e97 = gl_FrontFacing;
+    let _e97 = gl_FrontFacing_1;
     if _e97 {
         let _e98 = B;
         local_2 = _e98;
@@ -921,12 +921,12 @@ fn main_1() {
 }
 
 @fragment 
-fn main(@location(0) v_WorldPosition: vec3<f32>, @location(1) v_WorldNormal: vec3<f32>, @location(2) v_Uv: vec2<f32>, @location(3) v_WorldTangent: vec4<f32>, @builtin(front_facing) param: bool) -> FragmentOutput {
+fn main(@location(0) v_WorldPosition: vec3<f32>, @location(1) v_WorldNormal: vec3<f32>, @location(2) v_Uv: vec2<f32>, @location(3) v_WorldTangent: vec4<f32>, @builtin(front_facing) gl_FrontFacing: bool) -> FragmentOutput {
     v_WorldPosition_1 = v_WorldPosition;
     v_WorldNormal_1 = v_WorldNormal;
     v_Uv_1 = v_Uv;
     v_WorldTangent_1 = v_WorldTangent;
-    gl_FrontFacing = param;
+    gl_FrontFacing_1 = gl_FrontFacing;
     main_1();
     let _e69 = o_Target;
     return FragmentOutput(_e69);

naga/tests/out/wgsl/bevy-pbr.vert.wgsl

@@ -11,7 +11,7 @@ struct VertexOutput {
     @location(1) v_WorldNormal: vec3<f32>,
     @location(2) v_Uv: vec2<f32>,
     @location(3) v_WorldTangent: vec4<f32>,
-    @builtin(position) member: vec4<f32>,
+    @builtin(position) gl_Position: vec4<f32>,
 }
 
 var<private> Vertex_Position_1: vec3<f32>;

naga/tests/out/wgsl/clamp-splat.vert.wgsl

@@ -1,5 +1,5 @@
 struct VertexOutput {
-    @builtin(position) member: vec4<f32>,
+    @builtin(position) gl_Position: vec4<f32>,
 }
 
 var<private> a_pos_1: vec2<f32>;

naga/tests/out/wgsl/quad_glsl.vert.wgsl

@@ -1,6 +1,6 @@
 struct VertexOutput {
     @location(0) v_uv: vec2<f32>,
-    @builtin(position) member: vec4<f32>,
+    @builtin(position) gl_Position: vec4<f32>,
 }
 
 const c_scale: f32 = 1.2f;