wgsl: Add validation test for min/max builtin functions (#3497)

* Add validation test for min/max builtin functions

* Address feedback from @dneto

src/webgpu/listing_meta.json

@@ -1909,6 +1909,12 @@
   "webgpu:shader,validation,expression,call,builtin,log:integer_argument:*": { "subcaseMS": 1.134 },
   "webgpu:shader,validation,expression,call,builtin,log:must_use:*": { "subcaseMS": 1597.590 },
   "webgpu:shader,validation,expression,call,builtin,log:values:*": { "subcaseMS": 0.291 },
+  "webgpu:shader,validation,expression,call,builtin,max:args:*": { "subcaseMS": 77.529 },
+  "webgpu:shader,validation,expression,call,builtin,max:must_use:*": { "subcaseMS": 8.286 },
+  "webgpu:shader,validation,expression,call,builtin,max:values:*": { "subcaseMS": 260241.074 },
+  "webgpu:shader,validation,expression,call,builtin,min:args:*": { "subcaseMS": 67.260 },
+  "webgpu:shader,validation,expression,call,builtin,min:must_use:*": { "subcaseMS": 3.899 },
+  "webgpu:shader,validation,expression,call,builtin,min:values:*": { "subcaseMS": 246733.594 },
   "webgpu:shader,validation,expression,call,builtin,modf:integer_argument:*": { "subcaseMS": 1.089 },
   "webgpu:shader,validation,expression,call,builtin,modf:values:*": { "subcaseMS": 1.866 },
   "webgpu:shader,validation,expression,call,builtin,pack4xI8:args:*": { "subcaseMS": 36.226 },

src/webgpu/shader/validation/expression/call/builtin/max.spec.ts

@@ -0,0 +1,91 @@
+const builtin = 'max';
+export const description = `
+Validation tests for the ${builtin}() builtin.
+`;
+
+import { makeTestGroup } from '../../../../../../common/framework/test_group.js';
+import { keysOf, objectsToRecord } from '../../../../../../common/util/data_tables.js';
+import {
+  Type,
+  kAllNumericScalarsAndVectors,
+  scalarTypeOf,
+} from '../../../../../util/conversion.js';
+import { ShaderValidationTest } from '../../../shader_validation_test.js';
+
+import {
+  fullRangeForType,
+  kConstantAndOverrideStages,
+  stageSupportsType,
+  validateConstOrOverrideBuiltinEval,
+} from './const_override_validation.js';
+
+export const g = makeTestGroup(ShaderValidationTest);
+
+const kValuesTypes = objectsToRecord(kAllNumericScalarsAndVectors);
+
+g.test('values')
+  .desc(
+    `
+Validates that constant evaluation and override evaluation of ${builtin}() never errors
+`
+  )
+  .params(u =>
+    u
+      .combine('stage', kConstantAndOverrideStages)
+      .combine('type', keysOf(kValuesTypes))
+      .filter(u => stageSupportsType(u.stage, kValuesTypes[u.type]))
+      .beginSubcases()
+      .expand('a', u => fullRangeForType(kValuesTypes[u.type], 5))
+      .expand('b', u => fullRangeForType(kValuesTypes[u.type], 5))
+  )
+  .beforeAllSubcases(t => {
+    if (scalarTypeOf(kValuesTypes[t.params.type]) === Type.f16) {
+      t.selectDeviceOrSkipTestCase('shader-f16');
+    }
+  })
+  .fn(t => {
+    const type = kValuesTypes[t.params.type];
+    const expectedResult = true; // should never error
+    validateConstOrOverrideBuiltinEval(
+      t,
+      builtin,
+      expectedResult,
+      [type.create(t.params.a), type.create(t.params.b)],
+      t.params.stage
+    );
+  });
+
+const kArgCases = {
+  good: '(1.1, 2.2)',
+  bad_no_parens: '',
+  // Bad number of args
+  bad_0args: '()',
+  bad_1arg: '(1.0)',
+  bad_3arg: '(1.0, 2.0, 3.0)',
+  // Bad value for arg 0
+  bad_0bool: '(false, 1.0)',
+  bad_0array: '(array(1.1,2.2), 1.0)',
+  bad_0struct: '(modf(2.2), 1.0)',
+  // Bad value type for arg 1
+  bad_1bool: '(1.0, true)',
+  bad_1array: '(1.0, array(1.1,2.2))',
+  bad_1struct: '(1.0, modf(2.2))',
+};
+
+g.test('args')
+  .desc(`Test compilation failure of ${builtin} with variously shaped and typed arguments`)
+  .params(u => u.combine('arg', keysOf(kArgCases)))
+  .fn(t => {
+    t.expectCompileResult(
+      t.params.arg === 'good',
+      `const c = ${builtin}${kArgCases[t.params.arg]};`
+    );
+  });
+
+g.test('must_use')
+  .desc(`Result of ${builtin} must be used`)
+  .params(u => u.combine('use', [true, false]))
+  .fn(t => {
+    const use_it = t.params.use ? '_ = ' : '';
+    t.expectCompileResult(t.params.use, `fn f() { ${use_it}${builtin}${kArgCases['good']}; }`);
+  });

src/webgpu/shader/validation/expression/call/builtin/min.spec.ts

@@ -0,0 +1,91 @@
+const builtin = 'min';
+export const description = `
+Validation tests for the ${builtin}() builtin.
+`;
+
+import { makeTestGroup } from '../../../../../../common/framework/test_group.js';
+import { keysOf, objectsToRecord } from '../../../../../../common/util/data_tables.js';
+import {
+  Type,
+  kAllNumericScalarsAndVectors,
+  scalarTypeOf,
+} from '../../../../../util/conversion.js';
+import { ShaderValidationTest } from '../../../shader_validation_test.js';
+
+import {
+  fullRangeForType,
+  kConstantAndOverrideStages,
+  stageSupportsType,
+  validateConstOrOverrideBuiltinEval,
+} from './const_override_validation.js';
+
+export const g = makeTestGroup(ShaderValidationTest);
+
+const kValuesTypes = objectsToRecord(kAllNumericScalarsAndVectors);
+
+g.test('values')
+  .desc(
+    `
+Validates that constant evaluation and override evaluation of ${builtin}() never errors
+`
+  )
+  .params(u =>
+    u
+      .combine('stage', kConstantAndOverrideStages)
+      .combine('type', keysOf(kValuesTypes))
+      .filter(u => stageSupportsType(u.stage, kValuesTypes[u.type]))
+      .beginSubcases()
+      .expand('a', u => fullRangeForType(kValuesTypes[u.type], 5))
+      .expand('b', u => fullRangeForType(kValuesTypes[u.type], 5))
+  )
+  .beforeAllSubcases(t => {
+    if (scalarTypeOf(kValuesTypes[t.params.type]) === Type.f16) {
+      t.selectDeviceOrSkipTestCase('shader-f16');
+    }
+  })
+  .fn(t => {
+    const type = kValuesTypes[t.params.type];
+    const expectedResult = true; // should never error
+    validateConstOrOverrideBuiltinEval(
+      t,
+      builtin,
+      expectedResult,
+      [type.create(t.params.a), type.create(t.params.b)],
+      t.params.stage
+    );
+  });
+
+const kArgCases = {
+  good: '(1.1, 2.2)',
+  bad_no_parens: '',
+  // Bad number of args
+  bad_0args: '()',
+  bad_1arg: '(1.0)',
+  bad_3arg: '(1.0, 2.0, 3.0)',
+  // Bad value for arg 0
+  bad_0bool: '(false, 1.0)',
+  bad_0array: '(array(1.1,2.2), 1.0)',
+  bad_0struct: '(modf(2.2), 1.0)',
+  // Bad value type for arg 1
+  bad_1bool: '(1.0, true)',
+  bad_1array: '(1.0, array(1.1,2.2))',
+  bad_1struct: '(1.0, modf(2.2))',
+};
+
+g.test('args')
+  .desc(`Test compilation failure of ${builtin} with variously shaped and typed arguments`)
+  .params(u => u.combine('arg', keysOf(kArgCases)))
+  .fn(t => {
+    t.expectCompileResult(
+      t.params.arg === 'good',
+      `const c = ${builtin}${kArgCases[t.params.arg]};`
+    );
+  });
+
+g.test('must_use')
+  .desc(`Result of ${builtin} must be used`)
+  .params(u => u.combine('use', [true, false]))
+  .fn(t => {
+    const use_it = t.params.use ? '_ = ' : '';
+    t.expectCompileResult(t.params.use, `fn f() { ${use_it}${builtin}${kArgCases['good']}; }`);
+  });