bug1761850.js (3020B)
1 // Testing runtime execution of select + comparison operations. 2 // Normally they are folded into shorter/faster sequence than select alone. 3 4 const floatOps = { 5 lt(a, b) { return a < b ? 0 : 1; }, 6 le(a, b) { return a <= b ? 0 : 1; }, 7 gt(a, b) { return a > b ? 0 : 1; }, 8 ge(a, b) { return a >= b ? 0 : 1; }, 9 eq(a, b) { return a === b ? 0 : 1; }, 10 ne(a, b) { return a !== b ? 0 : 1; }, 11 } 12 13 for (let ty of ['f32', 'f64']) { 14 for (let op of ['lt', 'le', 'gt', 'ge', 'eq', 'ne']) { 15 const module = new WebAssembly.Module(wasmTextToBinary(`(module 16 (memory (export "memory") 1 1) 17 (func (export "test") (result i32) 18 i32.const 128 19 i32.load8_u 20 i32.const 129 21 i32.load8_u 22 i32.const 0 23 ${ty}.load 24 i32.const ${ty == 'f32' ? 4 : 8} 25 ${ty}.load 26 ${ty}.${op} 27 select 28 ) 29 (data (i32.const 128) "\\00\\01"))`)); 30 const instance = new WebAssembly.Instance(module); 31 const arr = new (ty == 'f32' ? Float32Array : Float64Array)(instance.exports.memory.buffer); 32 for (let [a, b] of cross( 33 [0, 1, -1e100, Infinity, -Infinity, 1e100, -1e-10, 1/-Infinity, NaN] 34 )) { 35 arr[0] = a; arr[1] = b; 36 assertEq(instance.exports.test(), floatOps[op](arr[0], arr[1])) 37 } 38 } 39 } 40 41 const intOps = { 42 lt(a, b) { return a < b ? 0 : 1; }, 43 le(a, b) { return a <= b ? 0 : 1; }, 44 gt(a, b) { return a > b ? 0 : 1; }, 45 ge(a, b) { return a >= b ? 0 : 1; }, 46 eq(a, b) { return a === b ? 0 : 1; }, 47 ne(a, b) { return a !== b ? 0 : 1; }, 48 } 49 50 for (let [ty, signed] of [['i32', true], ['i32', false], ['i64', true], ['i64', false]]) { 51 for (let op of ['lt', 'le', 'gt', 'ge', 'eq', 'ne']) { 52 const module = new WebAssembly.Module(wasmTextToBinary(`(module 53 (memory (export "memory") 1 1) 54 (func (export "test") (result i32) 55 i32.const 128 56 i32.load8_u 57 i32.const 129 58 i32.load8_u 59 i32.const 0 60 ${ty}.load 61 i32.const ${ty == 'i32' ? 4 : 8} 62 ${ty}.load 63 ${ty}.${op}${op[0] == 'l' || op[0] == 'g' ? (signed ? '_s' : '_u') : ''} 64 select 65 ) 66 (data (i32.const 128) "\\00\\01"))`)); 67 const instance = new WebAssembly.Instance(module); 68 const arr = new (ty == 'i32' ? (signed ? Int32Array : Uint32Array) : 69 (signed ? BigInt64Array : BigUint64Array)) 70 (instance.exports.memory.buffer); 71 const c = ty == 'i32' ? (a => a|0) : BigInt; 72 for (let [a, b] of cross( 73 [c(0), ~c(0), c(1), ~c(1), c(1) << c(8), ~c(1) << c(12)] 74 )) { 75 arr[0] = a; arr[1] = b; 76 assertEq(instance.exports.test(), intOps[op](arr[0], arr[1])) 77 } 78 } 79 }