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export const description = `
Execution tests for the 'inverseSqrt' builtin function
S is AbstractFloat, f32, f16
T is S or vecN<S>
@const fn inverseSqrt(e: T ) -> T
Returns the reciprocal of sqrt(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 { inverseSqrtInterval } from '../../../../../util/f32_interval.js';
import { biasedRange, 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);
export const d = makeCaseCache('inverseSqrt', {
f32: () => {
return generateUnaryToF32IntervalCases(
[
// 0 < x <= 1 linearly spread
...linearRange(kValue.f32.positive.min, 1, 100),
// 1 <= x < 2^32, biased towards 1
...biasedRange(1, 2 ** 32, 1000),
],
'unfiltered',
inverseSqrtInterval
);
},
});
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`)
.params(u =>
u.combine('inputSource', allInputSources).combine('vectorize', [undefined, 2, 3, 4] as const)
)
.fn(async t => {
const cases = await d.get('f32');
await run(t, builtin('inverseSqrt'), [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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