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export const description = `
Atomically read, add and store value.
* Load the original value pointed to by atomic_ptr.
* Obtains a new value by adding with the value v.
* Store the new value using atomic_ptr.
Returns the original value stored in the atomic object.
`;
import { makeTestGroup } from '../../../../../../common/framework/test_group.js';
import { GPUTest } from '../../../../../gpu_test.js';
export const g = makeTestGroup(GPUTest);
g.test('stage')
.specURL('https://www.w3.org/TR/WGSL/#atomic-rmw')
.desc(
`
Atomic built-in functions must not be used in a vertex shader stage.
`
)
.params(u => u.combine('stage', ['fragment', 'vertex', 'compute'] as const))
.unimplemented();
g.test('add')
.specURL('https://www.w3.org/TR/WGSL/#atomic-rmw')
.desc(
`
SC is storage or workgroup
T is i32 or u32
fn atomicAdd(atomic_ptr: ptr<SC, atomic<T>, read_write>, v: T) -> T
`
)
.params(u =>
u.combine('SC', ['storage', 'uniform'] as const).combine('T', ['i32', 'u32'] as const)
)
.unimplemented();
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