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export const description = `
Execution tests for the 'log' builtin function
S is AbstractFloat, f32, f16
T is S or vecN<S>
@const fn log(e: T ) -> T
Returns the natural logarithm of e. Component-wise when T is a vector.
`;
import { makeTestGroup } from '../../../../../../common/framework/test_group.js';
import { GPUTest } from '../../../../../gpu_test.js';
import { kValue } from '../../../../../util/constants.js';
import { TypeF32 } from '../../../../../util/conversion.js';
import { logInterval } from '../../../../../util/f32_interval.js';
import { biasedRange, fullF32Range, linearRange } from '../../../../../util/math.js';
import { makeCaseCache } from '../../case_cache.js';
import { allInputSources, generateUnaryToF32IntervalCases, run } from '../../expression.js';
import { builtin } from './builtin.js';
export const g = makeTestGroup(GPUTest);
// log's accuracy is defined in three regions { [0, 0.5), [0.5, 2.0], (2.0, +∞] }
const inputs = [
...linearRange(kValue.f32.positive.min, 0.5, 20),
...linearRange(0.5, 2.0, 20),
...biasedRange(2.0, 2 ** 32, 1000),
...fullF32Range(),
];
export const d = makeCaseCache('log', {
f32_const: () => {
return generateUnaryToF32IntervalCases(inputs, 'f32-only', logInterval);
},
f32_non_const: () => {
return generateUnaryToF32IntervalCases(inputs, 'unfiltered', logInterval);
},
});
g.test('abstract_float')
.specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
.desc(`abstract float tests`)
.params(u =>
u.combine('inputSource', allInputSources).combine('vectorize', [undefined, 2, 3, 4] as const)
)
.unimplemented();
g.test('f32')
.specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
.desc(
`
f32 tests
TODO(#792): Decide what the ground-truth is for these tests. [1]
`
)
.params(u =>
u.combine('inputSource', allInputSources).combine('vectorize', [undefined, 2, 3, 4] as const)
)
.fn(async t => {
const cases = await d.get(t.params.inputSource === 'const' ? 'f32_const' : 'f32_non_const');
await run(t, builtin('log'), [TypeF32], TypeF32, t.params, cases);
});
g.test('f16')
.specURL('https://www.w3.org/TR/WGSL/#float-builtin-functions')
.desc(`f16 tests`)
.params(u =>
u.combine('inputSource', allInputSources).combine('vectorize', [undefined, 2, 3, 4] as const)
)
.unimplemented();
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