diff options
Diffstat (limited to 'dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/exp.spec.ts')
-rw-r--r-- | dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/exp.spec.ts | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/exp.spec.ts b/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/exp.spec.ts new file mode 100644 index 0000000000..8b1ced3cab --- /dev/null +++ b/dom/webgpu/tests/cts/checkout/src/webgpu/shader/execution/expression/call/builtin/exp.spec.ts @@ -0,0 +1,90 @@ +export const description = ` +Execution tests for the 'exp' builtin function + +S is AbstractFloat, f32, f16 +T is S or vecN<S> +@const fn exp(e1: T ) -> T +Returns the natural exponentiation of e1 (e.g. e^e1). 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, TypeF16 } from '../../../../../util/conversion.js'; +import { FP } from '../../../../../util/floating_point.js'; +import { biasedRange, linearRange } from '../../../../../util/math.js'; +import { makeCaseCache } from '../../case_cache.js'; +import { allInputSources, run } from '../../expression.js'; + +import { builtin } from './builtin.js'; + +export const g = makeTestGroup(GPUTest); + +// floor(ln(max f32 value)) = 88, so exp(88) will be within range of a f32, but exp(89) will not +// floor(ln(max f64 value)) = 709, so exp(709) can be handled by the testing framework, but exp(710) will misbehave +const f32_inputs = [ + 0, // Returns 1 by definition + -89, // Returns subnormal value + kValue.f32.negative.min, // Closest to returning 0 as possible + ...biasedRange(kValue.f32.negative.max, -88, 100), + ...biasedRange(kValue.f32.positive.min, 88, 100), + ...linearRange(89, 709, 10), // Overflows f32, but not f64 +]; + +// floor(ln(max f16 value)) = 11, so exp(11) will be within range of a f16, but exp(12) will not +const f16_inputs = [ + 0, // Returns 1 by definition + -12, // Returns subnormal value + kValue.f16.negative.min, // Closest to returning 0 as possible + ...biasedRange(kValue.f16.negative.max, -11, 100), + ...biasedRange(kValue.f16.positive.min, 11, 100), + ...linearRange(12, 709, 10), // Overflows f16, but not f64 +]; + +export const d = makeCaseCache('exp', { + f32_const: () => { + return FP.f32.generateScalarToIntervalCases(f32_inputs, 'finite', FP.f32.expInterval); + }, + f32_non_const: () => { + return FP.f32.generateScalarToIntervalCases(f32_inputs, 'unfiltered', FP.f32.expInterval); + }, + f16_const: () => { + return FP.f16.generateScalarToIntervalCases(f16_inputs, 'finite', FP.f16.expInterval); + }, + f16_non_const: () => { + return FP.f16.generateScalarToIntervalCases(f16_inputs, 'unfiltered', FP.f16.expInterval); + }, +}); + +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(t.params.inputSource === 'const' ? 'f32_const' : 'f32_non_const'); + await run(t, builtin('exp'), [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) + ) + .beforeAllSubcases(t => { + t.selectDeviceOrSkipTestCase('shader-f16'); + }) + .fn(async t => { + const cases = await d.get(t.params.inputSource === 'const' ? 'f16_const' : 'f16_non_const'); + await run(t, builtin('exp'), [TypeF16], TypeF16, t.params, cases); + }); |