[naga] Ensure test functions in glsl snapshots are reachable from the entry point

naga/tests/in/glsl/931-constant-emitting.frag

@@ -9,4 +9,6 @@ float function() {
     return 0.0;
 }
 
-void main() {}
+void main() {
+    function();
+}

naga/tests/in/glsl/constant-array-size.frag

@@ -13,4 +13,6 @@ vec4 function() {
     return sum;
 }
 
-void main() {}
+void main() {
+    function();
+}

naga/tests/in/glsl/expressions.frag

@@ -159,6 +159,27 @@ void testSwizzleWrites(vec3 a) {
 
 out vec4 o_color;
 void main() {
+    testBinOpVecFloat(vec4(0), 1.0);
+    testBinOpFloatVec(vec4(0), 1.0);
+    testBinOpIVecInt(ivec4(0), 1);
+    testBinOpIntIVec(1, ivec4(0));
+    testBinOpUVecUint(uvec4(0), 1);
+    testBinOpUintUVec(1, uvec4(0));
+    testBinOpMatMat(mat3(0), mat3(1));
+    testBinOpMatFloat(1, mat3(1));
+    testUnaryOpMat(mat3(1));
+    testStructConstructor();
+    testNonScalarToScalarConstructor();
+    testArrayConstructor();
+    testFreestandingConstructor();
+    testNonImplicitCastVectorCast();
     privatePointer(global);
+    ternary(false);
+    testMatrixMultiplication(mat4x3(0), mat4x4(1));
+    testLength();
+    testConstantLength(float[4](0.0, 1.0, 2.0, 3.0));
+    indexConstantNonConstantIndex(1);
+    testSwizzleWrites(vec3(0));
+
     o_color.rgba = vec4(1.0);
 }

naga/tests/in/glsl/fma.frag

@@ -5,5 +5,17 @@ void Fma(inout Mat4x3 d, Mat4x3 m, float s) { d.mx += m.mx * s; d.my += m.my * s
 
 out vec4 o_color;
 void main() {
+    Mat4x3 m1 = {
+        vec4(0),
+        vec4(1),
+        vec4(2),
+    };
+    Mat4x3 m2 = {
+        vec4(0),
+        vec4(1),
+        vec4(2),
+    };
+
+    Fma(m1, m2, 2.0);
     o_color.rgba = vec4(1.0);
 }

naga/tests/in/glsl/functions_call.frag

@@ -18,4 +18,12 @@ void swizzleImplicitCastCaller(vec3 a) {
     swizzleImplicitCastCallee(a.xz);
 }
 
-void main() {}
+void main() {
+    swizzleCaller(vec3(0));
+    uint a;
+    outImplicitCastCallee(a);
+    outImplicitCastCaller(1.0);
+    uvec2 b;
+    swizzleImplicitCastCallee(b);
+    swizzleImplicitCastCaller(vec3(0));
+}

naga/tests/in/glsl/images.frag

@@ -70,4 +70,13 @@ void testImgWriteReadOnly(in ivec2 coord) {
     vec2 size = imageSize(imgWriteReadOnly);
 }
 
-void main() {}
+void main() {
+    testImg1D(1);
+    testImg1DArray(ivec2(0));
+    testImg2D(ivec2(0));
+    testImg2DArray(ivec3(0));
+    testImg3D(ivec3(0));
+    testImgReadOnly(ivec2(0));
+    testImgWriteOnly(ivec2(0));
+    testImgWriteReadOnly(ivec2(0));
+}

naga/tests/in/glsl/sampler-functions.frag

@@ -1,6 +1,9 @@
 #version 440
 precision mediump float;
 
+layout(set = 1, binding = 0) uniform texture2D tex2D;
+layout(set = 1, binding = 1) uniform samplerShadow sampShadow;
+
 float CalcShadowPCF1(texture2D T_P_t_TextureDepth, samplerShadow S_P_t_TextureDepth, in vec3 t_ProjCoord) {
     float t_Res = 0.0f;
     t_Res += texture(sampler2DShadow(T_P_t_TextureDepth, S_P_t_TextureDepth), t_ProjCoord.xyz) * (1.0 / 5.0);
@@ -13,4 +16,6 @@ float CalcShadowPCF(texture2D T_P_t_TextureDepth, samplerShadow S_P_t_TextureDep
 }
 
 void main() {
+    CalcShadowPCF1(tex2D, sampShadow, vec3(0));
+    CalcShadowPCF(tex2D, sampShadow, vec3(0), 1.0);
 }

naga/tests/in/glsl/samplers.frag

@@ -296,4 +296,24 @@ void testTex2DMSArray(in vec3 coord) {
     c = texelFetch(sampler2DMSArray(tex2DMSArray, samp), ivec3(coord), 3);
 }
 
-void main() {}
+void main() {
+    testTex1D(1.0);
+#if HAS_1D_DEPTH_TEXTURES
+    testTex1DShadow(2.0);
+#endif
+    testTex1DArray(vec2(3.0));
+#if HAS_1D_DEPTH_TEXTURES
+    testTex1DArrayShadow(vec2(4.0));
+#endif
+    testTex2D(vec2(1.0));
+    testTex2DShadow(vec2(1.0));
+    testTex2DArray(vec3(1.0));
+    testTex2DArrayShadow(vec3(1.0));
+    testTexCube(vec3(1.0));
+    testTexCubeShadow(vec3(1.0));
+    testTexCubeArray(vec4(1.0));
+    testTexCubeArrayShadow(vec4(1.0));
+    testTex3D(vec3(1.0));
+    testTex2DMS(vec2(1.0));
+    testTex2DMSArray(vec3(1.0));
+}

naga/tests/in/glsl/statements.frag

@@ -33,4 +33,9 @@ void switchNoLastBreak(int a) {
     return;
 }
 
-void main() {}
+void main() {
+    switchEmpty(1);
+    switchNoDefault(2);
+    switchCaseImplConv(3);
+    switchNoLastBreak(4);
+}

naga/tests/in/glsl/vector-functions.frag

@@ -44,4 +44,10 @@ void btest(bvec4 a, bvec4 b) {
 	bvec4 g = not(a);
 }
 
-void main() {}
+void main() {
+    ftest(vec4(0), vec4(0));
+    dtest(dvec4(0), dvec4(0));
+    itest(ivec4(0), ivec4(0));
+    utest(uvec4(0), uvec4(0));
+    btest(bvec4(false), bvec4(false));
+}

naga/tests/out/wgsl/glsl-931-constant-emitting.frag.wgsl

@@ -5,6 +5,7 @@ fn function() -> f32 {
 }
 
 fn main_1() {
+    let _e0 = function();
     return;
 }
 

naga/tests/out/wgsl/glsl-constant-array-size.frag.wgsl

@@ -32,6 +32,7 @@ fn function() -> vec4<f32> {
 }
 
 fn main_1() {
+    let _e0 = function();
     return;
 }
 

naga/tests/out/wgsl/glsl-expressions.frag.wgsl

@@ -427,11 +427,31 @@ fn testSwizzleWrites(a_27: vec3<f32>) {
 fn main_1() {
     var local_6: f32;
 
-    let _e2 = global;
-    local_6 = _e2;
+    testBinOpVecFloat(vec4(0f), 1f);
+    testBinOpFloatVec(vec4(0f), 1f);
+    testBinOpIVecInt(vec4(0i), 1i);
+    testBinOpIntIVec(1i, vec4(0i));
+    testBinOpUVecUint(vec4(0u), 1u);
+    testBinOpUintUVec(1u, vec4(0u));
+    testBinOpMatMat(mat3x3<f32>(vec3<f32>(0f, 0f, 0f), vec3<f32>(0f, 0f, 0f), vec3<f32>(0f, 0f, 0f)), mat3x3<f32>(vec3<f32>(1f, 0f, 0f), vec3<f32>(0f, 1f, 0f), vec3<f32>(0f, 0f, 1f)));
+    testBinOpMatFloat(1f, mat3x3<f32>(vec3<f32>(1f, 0f, 0f), vec3<f32>(0f, 1f, 0f), vec3<f32>(0f, 0f, 1f)));
+    testUnaryOpMat(mat3x3<f32>(vec3<f32>(1f, 0f, 0f), vec3<f32>(0f, 1f, 0f), vec3<f32>(0f, 0f, 1f)));
+    testStructConstructor();
+    testNonScalarToScalarConstructor();
+    testArrayConstructor();
+    testFreestandingConstructor();
+    testNonImplicitCastVectorCast();
+    let _e45 = global;
+    local_6 = _e45;
     privatePointer((&local_6));
-    let _e4 = local_6;
-    global = _e4;
+    let _e47 = local_6;
+    global = _e47;
+    ternary(false);
+    testMatrixMultiplication(mat4x3<f32>(vec3<f32>(0f, 0f, 0f), vec3<f32>(0f, 0f, 0f), vec3<f32>(0f, 0f, 0f), vec3<f32>(0f, 0f, 0f)), mat4x4<f32>(vec4<f32>(1f, 0f, 0f, 0f), vec4<f32>(0f, 1f, 0f, 0f), vec4<f32>(0f, 0f, 1f, 0f), vec4<f32>(0f, 0f, 0f, 1f)));
+    testLength();
+    testConstantLength(array<f32, 4>(0f, 1f, 2f, 3f));
+    indexConstantNonConstantIndex(1i);
+    testSwizzleWrites(vec3(0f));
     o_color.x = 1f;
     o_color.y = 1f;
     o_color.z = 1f;

naga/tests/out/wgsl/glsl-fma.frag.wgsl

@@ -32,6 +32,11 @@ fn Fma(d: ptr<function, Mat4x3_>, m: Mat4x3_, s: f32) {
 }
 
 fn main_1() {
+    var m1_: Mat4x3_ = Mat4x3_(vec4(0f), vec4(1f), vec4(2f));
+    var m2_: Mat4x3_ = Mat4x3_(vec4(0f), vec4(1f), vec4(2f));
+
+    let _e17 = m2_;
+    Fma((&m1_), _e17, 2f);
     o_color.x = 1f;
     o_color.y = 1f;
     o_color.z = 1f;

naga/tests/out/wgsl/glsl-functions_call.frag.wgsl

@@ -50,6 +50,14 @@ fn swizzleImplicitCastCaller(a_7: vec3<f32>) {
 }
 
 fn main_1() {
+    var a_9: u32;
+    var b: vec2<u32>;
+
+    swizzleCaller(vec3(0f));
+    outImplicitCastCallee((&a_9));
+    outImplicitCastCaller(1f);
+    swizzleImplicitCastCallee((&b));
+    swizzleImplicitCastCaller(vec3(0f));
     return;
 }
 

naga/tests/out/wgsl/glsl-images.frag.wgsl

@@ -134,6 +134,14 @@ fn testImgWriteReadOnly(coord_14: vec2<i32>) {
 }
 
 fn main_1() {
+    testImg1D(1i);
+    testImg1DArray(vec2(0i));
+    testImg2D(vec2(0i));
+    testImg2DArray(vec3(0i));
+    testImg3D(vec3(0i));
+    testImgReadOnly(vec2(0i));
+    testImgWriteOnly(vec2(0i));
+    testImgWriteReadOnly(vec2(0i));
     return;
 }
 

naga/tests/out/wgsl/glsl-sampler-functions.frag.wgsl

@@ -1,3 +1,8 @@
+@group(1) @binding(0) 
+var tex2D: texture_depth_2d;
+@group(1) @binding(1) 
+var sampShadow: sampler_comparison;
+
 fn CalcShadowPCF1_(T_P_t_TextureDepth: texture_depth_2d, S_P_t_TextureDepth: sampler_comparison, t_ProjCoord: vec3<f32>) -> f32 {
     var t_ProjCoord_1: vec3<f32>;
     var t_Res: f32 = 0f;
@@ -27,6 +32,8 @@ fn CalcShadowPCF(T_P_t_TextureDepth_1: texture_depth_2d, S_P_t_TextureDepth_1: s
 }
 
 fn main_1() {
+    let _e4 = CalcShadowPCF1_(tex2D, sampShadow, vec3(0f));
+    let _e8 = CalcShadowPCF(tex2D, sampShadow, vec3(0f), 1f);
     return;
 }
 

naga/tests/out/wgsl/glsl-samplers.frag.wgsl

@@ -628,6 +628,19 @@ fn testTex2DMSArray(coord_24: vec3<f32>) {
 }
 
 fn main_1() {
+    testTex1D(1f);
+    testTex1DArray(vec2(3f));
+    testTex2D(vec2(1f));
+    testTex2DShadow(vec2(1f));
+    testTex2DArray(vec3(1f));
+    testTex2DArrayShadow(vec3(1f));
+    testTexCube(vec3(1f));
+    testTexCubeShadow(vec3(1f));
+    testTexCubeArray(vec4(1f));
+    testTexCubeArrayShadow(vec4(1f));
+    testTex3D(vec3(1f));
+    testTex2DMS(vec2(1f));
+    testTex2DMSArray(vec3(1f));
     return;
 }
 

naga/tests/out/wgsl/glsl-statements.frag.wgsl

@@ -54,6 +54,10 @@ fn switchNoLastBreak(a_6: i32) {
 }
 
 fn main_1() {
+    switchEmpty(1i);
+    switchNoDefault(2i);
+    switchCaseImplConv(3u);
+    switchNoLastBreak(4i);
     return;
 }
 

naga/tests/out/wgsl/glsl-vector-functions.frag.wgsl

@@ -157,6 +157,11 @@ fn btest(a_8: vec4<bool>, b_8: vec4<bool>) {
 }
 
 fn main_1() {
+    ftest(vec4(0f), vec4(0f));
+    dtest(vec4(0.0lf), vec4(0.0lf));
+    itest(vec4(0i), vec4(0i));
+    utest(vec4(0u), vec4(0u));
+    btest(vec4(false), vec4(false));
     return;
 }