| // EMIT_MIR_FOR_EACH_PANIC_STRATEGY |
| //@ unit-test: GVN |
| //@ compile-flags: -O |
| |
| // EMIT_MIR aggregate.main.GVN.diff |
| fn main() { |
| // CHECK-LABEL: fn main( |
| // CHECK: debug x => [[x:_.*]]; |
| // CHECK-NOT: = Add( |
| // CHECK: [[x]] = const 1_u8; |
| // CHECK-NOT: = Add( |
| // CHECK: foo(const 1_u8) |
| let x = (0, 1, 2).1 + 0; |
| foo(x); |
| } |
| |
| // Verify that we still propagate if part of the aggregate is not known. |
| // EMIT_MIR aggregate.foo.GVN.diff |
| fn foo(x: u8) { |
| // CHECK-LABEL: fn foo( |
| // CHECK: debug first => [[first:_.*]]; |
| // CHECK: debug second => [[second:_.*]]; |
| // CHECK-NOT: = Add( |
| // CHECK: [[first]] = const 1_i32; |
| // CHECK-NOT: = Add( |
| // CHECK: [[second]] = const 3_i32; |
| let first = (0, x).0 + 1; |
| let second = (x, 1).1 + 2; |
| } |
