compiler/
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examples/
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lib/std/arch/rv64/tests/arith.w64.rad
raw
| 1 | //! Test 64-bit integer arithmetic. |
| 2 | //! Verifies that i64/u64 operations use full-width instructions |
| 3 | //! and that widening/narrowing casts work correctly. |
| 4 | |
| 5 | fn testI64Add() -> bool { |
| 6 | let a: i64 = 100; |
| 7 | let b: i64 = 200; |
| 8 | let result: i64 = a + b; |
| 9 | if result != 300 { |
| 10 | return false; |
| 11 | } |
| 12 | return true; |
| 13 | } |
| 14 | |
| 15 | fn testU64Add() -> bool { |
| 16 | let a: u64 = 100; |
| 17 | let b: u64 = 200; |
| 18 | let result: u64 = a + b; |
| 19 | if result != 300 { |
| 20 | return false; |
| 21 | } |
| 22 | return true; |
| 23 | } |
| 24 | |
| 25 | fn testI64Sub() -> bool { |
| 26 | let a: i64 = 500; |
| 27 | let b: i64 = 300; |
| 28 | let result: i64 = a - b; |
| 29 | if result != 200 { |
| 30 | return false; |
| 31 | } |
| 32 | return true; |
| 33 | } |
| 34 | |
| 35 | fn testI64Mul() -> bool { |
| 36 | let a: i64 = 1000; |
| 37 | let b: i64 = 2000; |
| 38 | let result: i64 = a * b; |
| 39 | if result != 2000000 { |
| 40 | return false; |
| 41 | } |
| 42 | return true; |
| 43 | } |
| 44 | |
| 45 | fn testI64Div() -> bool { |
| 46 | let a: i64 = 1000; |
| 47 | let b: i64 = 10; |
| 48 | let result: i64 = a / b; |
| 49 | if result != 100 { |
| 50 | return false; |
| 51 | } |
| 52 | return true; |
| 53 | } |
| 54 | |
| 55 | fn testU64Div() -> bool { |
| 56 | let a: u64 = 1000; |
| 57 | let b: u64 = 10; |
| 58 | let result: u64 = a / b; |
| 59 | if result != 100 { |
| 60 | return false; |
| 61 | } |
| 62 | return true; |
| 63 | } |
| 64 | |
| 65 | fn testI64Neg() -> bool { |
| 66 | let a: i64 = 42; |
| 67 | let result: i64 = -a; |
| 68 | if result != -42 { |
| 69 | return false; |
| 70 | } |
| 71 | return true; |
| 72 | } |
| 73 | |
| 74 | fn testI64Shift() -> bool { |
| 75 | let a: i64 = 1; |
| 76 | let result: i64 = a << 40; |
| 77 | if result != 1099511627776 { |
| 78 | return false; |
| 79 | } |
| 80 | let back: i64 = result >> 40; |
| 81 | if back != 1 { |
| 82 | return false; |
| 83 | } |
| 84 | return true; |
| 85 | } |
| 86 | |
| 87 | fn testU64Shift() -> bool { |
| 88 | let a: u64 = 1; |
| 89 | let shifted: u64 = a << 32; |
| 90 | // Shift by 32 should NOT wrap like u32 would. |
| 91 | let back: u64 = shifted >> 32; |
| 92 | if back != 1 { |
| 93 | return false; |
| 94 | } |
| 95 | return true; |
| 96 | } |
| 97 | |
| 98 | fn testI64Bitwise() -> bool { |
| 99 | let a: i64 = 0xFF00; |
| 100 | let b: i64 = 0x0FF0; |
| 101 | let andResult: i64 = a & b; |
| 102 | if andResult != 0x0F00 { |
| 103 | return false; |
| 104 | } |
| 105 | let orResult: i64 = a | b; |
| 106 | if orResult != 0xFFF0 { |
| 107 | return false; |
| 108 | } |
| 109 | let xorResult: i64 = a ^ b; |
| 110 | if xorResult != 0xF0F0 { |
| 111 | return false; |
| 112 | } |
| 113 | return true; |
| 114 | } |
| 115 | |
| 116 | fn testWidenI32ToI64() -> bool { |
| 117 | let a: i32 = -42; |
| 118 | let b: i64 = a as i64; |
| 119 | if b != -42 { |
| 120 | return false; |
| 121 | } |
| 122 | return true; |
| 123 | } |
| 124 | |
| 125 | fn testWidenU32ToU64() -> bool { |
| 126 | let a: u32 = 0xFFFFFFFF; |
| 127 | let b: u64 = a as u64; |
| 128 | // Should zero-extend, not sign-extend. |
| 129 | // If sign-extended, this would be a very large negative number in i64. |
| 130 | let c: u64 = b >> 32; |
| 131 | if c != 0 { |
| 132 | return false; |
| 133 | } |
| 134 | return true; |
| 135 | } |
| 136 | |
| 137 | fn testNarrowI64ToI32() -> bool { |
| 138 | let a: i64 = 42; |
| 139 | let b: i32 = a as i32; |
| 140 | if b != 42 { |
| 141 | return false; |
| 142 | } |
| 143 | return true; |
| 144 | } |
| 145 | |
| 146 | fn testNarrowU64ToU32() -> bool { |
| 147 | let a: u64 = 42; |
| 148 | let b: u32 = a as u32; |
| 149 | if b != 42 { |
| 150 | return false; |
| 151 | } |
| 152 | return true; |
| 153 | } |
| 154 | |
| 155 | fn testI64Compare() -> bool { |
| 156 | let a: i64 = -1; |
| 157 | let b: i64 = 1; |
| 158 | if a >= b { |
| 159 | return false; |
| 160 | } |
| 161 | if b <= a { |
| 162 | return false; |
| 163 | } |
| 164 | return true; |
| 165 | } |
| 166 | |
| 167 | fn testU64Compare() -> bool { |
| 168 | let a: u64 = 100; |
| 169 | let b: u64 = 200; |
| 170 | if a >= b { |
| 171 | return false; |
| 172 | } |
| 173 | if b <= a { |
| 174 | return false; |
| 175 | } |
| 176 | return true; |
| 177 | } |
| 178 | |
| 179 | fn testI64Modulo() -> bool { |
| 180 | let a: i64 = 17; |
| 181 | let b: i64 = 5; |
| 182 | let result: i64 = a % b; |
| 183 | if result != 2 { |
| 184 | return false; |
| 185 | } |
| 186 | return true; |
| 187 | } |
| 188 | |
| 189 | fn testU64Modulo() -> bool { |
| 190 | let a: u64 = 17; |
| 191 | let b: u64 = 5; |
| 192 | let result: u64 = a % b; |
| 193 | if result != 2 { |
| 194 | return false; |
| 195 | } |
| 196 | return true; |
| 197 | } |
| 198 | |
| 199 | @default fn main() -> i32 { |
| 200 | assert testI64Add(); |
| 201 | assert testU64Add(); |
| 202 | assert testI64Sub(); |
| 203 | assert testI64Mul(); |
| 204 | assert testI64Div(); |
| 205 | assert testU64Div(); |
| 206 | assert testI64Neg(); |
| 207 | assert testI64Shift(); |
| 208 | assert testU64Shift(); |
| 209 | assert testI64Bitwise(); |
| 210 | assert testWidenI32ToI64(); |
| 211 | assert testWidenU32ToU64(); |
| 212 | assert testNarrowI64ToI32(); |
| 213 | assert testNarrowU64ToU32(); |
| 214 | assert testI64Compare(); |
| 215 | assert testU64Compare(); |
| 216 | assert testI64Modulo(); |
| 217 | assert testU64Modulo(); |
| 218 | return 0; |
| 219 | } |