1 // Copyright 2017 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
13 // compile-flags: -Z lower_128bit_ops=yes -C debug_assertions=no
17 static TEST_SIGNED: i128 = const_signed(-222);
18 static TEST_UNSIGNED: u128 = const_unsigned(200);
20 const fn const_signed(mut x: i128) -> i128 {
21 ((((((x + 1) - 2) * 3) / 4) % 5) << 6) >> 7
24 const fn const_unsigned(mut x: u128) -> u128 {
25 ((((((x + 1) - 2) * 3) / 4) % 5) << 6) >> 7
28 fn test_signed(mut x: i128) -> i128 {
39 fn test_unsigned(mut x: u128) -> u128 {
50 fn check(x: i128, y: u128) {
51 assert_eq!(test_signed(x), -1);
52 assert_eq!(const_signed(x), -1);
53 assert_eq!(TEST_SIGNED, -1);
54 assert_eq!(test_unsigned(y), 2);
55 assert_eq!(const_unsigned(y), 2);
56 assert_eq!(TEST_UNSIGNED, 2);
65 // START rustc.const_signed.Lower128Bit.after.mir
67 // _9 = const compiler_builtins::int::addsub::rust_i128_addo(move _8, const 1i128) -> bb10;
69 // _7 = move (_9.0: i128);
71 // _10 = const compiler_builtins::int::addsub::rust_i128_subo(move _7, const 2i128) -> bb11;
73 // _6 = move (_10.0: i128);
75 // _11 = const compiler_builtins::int::mul::rust_i128_mulo(move _6, const 3i128) -> bb12;
77 // _5 = move (_11.0: i128);
79 // _12 = Eq(const 4i128, const 0i128);
80 // assert(!move _12, "attempt to divide by zero") -> bb4;
82 // _13 = Eq(const 4i128, const -1i128);
83 // _14 = Eq(_5, const -170141183460469231731687303715884105728i128);
84 // _15 = BitAnd(move _13, move _14);
85 // assert(!move _15, "attempt to divide with overflow") -> bb5;
87 // _4 = const compiler_builtins::int::sdiv::rust_i128_div(move _5, const 4i128) -> bb13;
89 // _17 = Eq(const 5i128, const -1i128);
90 // _18 = Eq(_4, const -170141183460469231731687303715884105728i128);
91 // _19 = BitAnd(move _17, move _18);
92 // assert(!move _19, "attempt to calculate the remainder with overflow") -> bb7;
94 // _3 = const compiler_builtins::int::sdiv::rust_i128_rem(move _4, const 5i128) -> bb15;
96 // _2 = move (_20.0: i128);
98 // _23 = const 7i32 as u128 (Misc);
99 // _21 = const compiler_builtins::int::shift::rust_i128_shro(move _2, move _23) -> bb16;
101 // _0 = move (_21.0: i128);
103 // assert(!move (_9.1: bool), "attempt to add with overflow") -> bb1;
105 // assert(!move (_10.1: bool), "attempt to subtract with overflow") -> bb2;
107 // assert(!move (_11.1: bool), "attempt to multiply with overflow") -> bb3;
109 // _16 = Eq(const 5i128, const 0i128);
110 // assert(!move _16, "attempt to calculate the remainder with a divisor of zero") -> bb6;
112 // assert(!move (_20.1: bool), "attempt to shift left with overflow") -> bb8;
114 // _22 = const 6i32 as u128 (Misc);
115 // _20 = const compiler_builtins::int::shift::rust_i128_shlo(move _3, move _22) -> bb14;
117 // assert(!move (_21.1: bool), "attempt to shift right with overflow") -> bb9;
118 // END rustc.const_signed.Lower128Bit.after.mir
120 // START rustc.const_unsigned.Lower128Bit.after.mir
122 // _9 = const compiler_builtins::int::addsub::rust_u128_addo(move _8, const 1u128) -> bb8;
124 // _7 = move (_9.0: u128);
126 // _10 = const compiler_builtins::int::addsub::rust_u128_subo(move _7, const 2u128) -> bb9;
128 // _6 = move (_10.0: u128);
130 // _11 = const compiler_builtins::int::mul::rust_u128_mulo(move _6, const 3u128) -> bb10;
132 // _5 = move (_11.0: u128);
134 // _12 = Eq(const 4u128, const 0u128);
135 // assert(!move _12, "attempt to divide by zero") -> bb4;
137 // _4 = const compiler_builtins::int::udiv::rust_u128_div(move _5, const 4u128) -> bb11;
139 // _3 = const compiler_builtins::int::udiv::rust_u128_rem(move _4, const 5u128) -> bb13;
141 // _2 = move (_14.0: u128);
143 // _17 = const 7i32 as u128 (Misc);
144 // _15 = const compiler_builtins::int::shift::rust_u128_shro(move _2, move _17) -> bb14;
146 // _0 = move (_15.0: u128);
148 // assert(!move (_9.1: bool), "attempt to add with overflow") -> bb1;
150 // assert(!move (_10.1: bool), "attempt to subtract with overflow") -> bb2;
152 // assert(!move (_11.1: bool), "attempt to multiply with overflow") -> bb3;
154 // _13 = Eq(const 5u128, const 0u128);
155 // assert(!move _13, "attempt to calculate the remainder with a divisor of zero") -> bb5;
157 // assert(!move (_14.1: bool), "attempt to shift left with overflow") -> bb6;
159 // _16 = const 6i32 as u128 (Misc);
160 // _14 = const compiler_builtins::int::shift::rust_u128_shlo(move _3, move _16) -> bb12;
162 // assert(!move (_15.1: bool), "attempt to shift right with overflow") -> bb7;
163 // END rustc.const_unsigned.Lower128Bit.after.mir
165 // START rustc.test_signed.Lower128Bit.after.mir
166 // _1 = const compiler_builtins::int::addsub::rust_i128_add(_1, const 1i128) -> bb7;
168 // _1 = const compiler_builtins::int::sdiv::rust_i128_div(_1, const 4i128) -> bb8;
170 // _1 = const compiler_builtins::int::sdiv::rust_i128_rem(_1, const 5i128) -> bb11;
172 // _1 = const compiler_builtins::int::mul::rust_i128_mul(_1, const 3i128) -> bb5;
174 // _1 = const compiler_builtins::int::addsub::rust_i128_sub(_1, const 2i128) -> bb6;
176 // _10 = const 7i32 as u32 (Misc);
177 // _1 = const compiler_builtins::int::shift::rust_i128_shr(_1, move _10) -> bb9;
179 // _11 = const 6i32 as u32 (Misc);
180 // _1 = const compiler_builtins::int::shift::rust_i128_shl(_1, move _11) -> bb10;
181 // END rustc.test_signed.Lower128Bit.after.mir
183 // START rustc.test_unsigned.Lower128Bit.after.mir
184 // _1 = const compiler_builtins::int::addsub::rust_u128_add(_1, const 1u128) -> bb5;
186 // _1 = const compiler_builtins::int::udiv::rust_u128_div(_1, const 4u128) -> bb6;
188 // _1 = const compiler_builtins::int::udiv::rust_u128_rem(_1, const 5u128) -> bb9;
190 // _1 = const compiler_builtins::int::mul::rust_u128_mul(_1, const 3u128) -> bb3;
192 // _1 = const compiler_builtins::int::addsub::rust_u128_sub(_1, const 2u128) -> bb4;
194 // _4 = const 7i32 as u32 (Misc);
195 // _1 = const compiler_builtins::int::shift::rust_u128_shr(_1, move _4) -> bb7;
197 // _5 = const 6i32 as u32 (Misc);
198 // _1 = const compiler_builtins::int::shift::rust_u128_shl(_1, move _5) -> bb8;
199 // END rustc.test_unsigned.Lower128Bit.after.mir