--- /dev/null
+- // MIR for `foo` before ConstProp
++ // MIR for `foo` after ConstProp
+
+ fn foo(_1: u8) -> () {
+ debug x => _1; // in scope 0 at $DIR/aggregate.rs:+0:8: +0:9
+ let mut _0: (); // return place in scope 0 at $DIR/aggregate.rs:+0:15: +0:15
+ let _2: i32; // in scope 0 at $DIR/aggregate.rs:+2:9: +2:14
+ let mut _3: i32; // in scope 0 at $DIR/aggregate.rs:+2:17: +2:25
+ let mut _4: (i32, u8); // in scope 0 at $DIR/aggregate.rs:+2:17: +2:23
+ let mut _5: u8; // in scope 0 at $DIR/aggregate.rs:+2:21: +2:22
+ let mut _7: i32; // in scope 0 at $DIR/aggregate.rs:+3:18: +3:26
+ let mut _8: (u8, i32); // in scope 0 at $DIR/aggregate.rs:+3:18: +3:24
+ let mut _9: u8; // in scope 0 at $DIR/aggregate.rs:+3:19: +3:20
+ scope 1 {
+ debug first => _2; // in scope 1 at $DIR/aggregate.rs:+2:9: +2:14
+ let _6: i32; // in scope 1 at $DIR/aggregate.rs:+3:9: +3:15
+ scope 2 {
+ debug second => _6; // in scope 2 at $DIR/aggregate.rs:+3:9: +3:15
+ }
+ }
+
+ bb0: {
+ StorageLive(_2); // scope 0 at $DIR/aggregate.rs:+2:9: +2:14
+ StorageLive(_3); // scope 0 at $DIR/aggregate.rs:+2:17: +2:25
+ StorageLive(_4); // scope 0 at $DIR/aggregate.rs:+2:17: +2:23
+ StorageLive(_5); // scope 0 at $DIR/aggregate.rs:+2:21: +2:22
+ _5 = _1; // scope 0 at $DIR/aggregate.rs:+2:21: +2:22
+ _4 = (const 0_i32, move _5); // scope 0 at $DIR/aggregate.rs:+2:17: +2:23
+ StorageDead(_5); // scope 0 at $DIR/aggregate.rs:+2:22: +2:23
+- _3 = (_4.0: i32); // scope 0 at $DIR/aggregate.rs:+2:17: +2:25
+- _2 = Add(move _3, const 1_i32); // scope 0 at $DIR/aggregate.rs:+2:17: +2:29
++ _3 = const 0_i32; // scope 0 at $DIR/aggregate.rs:+2:17: +2:25
++ _2 = const 1_i32; // scope 0 at $DIR/aggregate.rs:+2:17: +2:29
+ StorageDead(_3); // scope 0 at $DIR/aggregate.rs:+2:28: +2:29
+ StorageDead(_4); // scope 0 at $DIR/aggregate.rs:+2:29: +2:30
+ StorageLive(_6); // scope 1 at $DIR/aggregate.rs:+3:9: +3:15
+ StorageLive(_7); // scope 1 at $DIR/aggregate.rs:+3:18: +3:26
+ StorageLive(_8); // scope 1 at $DIR/aggregate.rs:+3:18: +3:24
+ StorageLive(_9); // scope 1 at $DIR/aggregate.rs:+3:19: +3:20
+ _9 = _1; // scope 1 at $DIR/aggregate.rs:+3:19: +3:20
+ _8 = (move _9, const 1_i32); // scope 1 at $DIR/aggregate.rs:+3:18: +3:24
+ StorageDead(_9); // scope 1 at $DIR/aggregate.rs:+3:23: +3:24
+- _7 = (_8.1: i32); // scope 1 at $DIR/aggregate.rs:+3:18: +3:26
+- _6 = Add(move _7, const 2_i32); // scope 1 at $DIR/aggregate.rs:+3:18: +3:30
++ _7 = const 1_i32; // scope 1 at $DIR/aggregate.rs:+3:18: +3:26
++ _6 = const 3_i32; // scope 1 at $DIR/aggregate.rs:+3:18: +3:30
+ StorageDead(_7); // scope 1 at $DIR/aggregate.rs:+3:29: +3:30
+ StorageDead(_8); // scope 1 at $DIR/aggregate.rs:+3:30: +3:31
+ _0 = const (); // scope 0 at $DIR/aggregate.rs:+0:15: +4:2
+ StorageDead(_6); // scope 1 at $DIR/aggregate.rs:+4:1: +4:2
+ StorageDead(_2); // scope 0 at $DIR/aggregate.rs:+4:1: +4:2
+ return; // scope 0 at $DIR/aggregate.rs:+4:2: +4:2
+ }
+ }
+
--- /dev/null
+// MIR for `foo` after PreCodegen
+
+fn foo(_1: u8) -> () {
+ debug x => _1; // in scope 0 at $DIR/aggregate.rs:+0:8: +0:9
+ let mut _0: (); // return place in scope 0 at $DIR/aggregate.rs:+0:15: +0:15
+ let _2: i32; // in scope 0 at $DIR/aggregate.rs:+2:9: +2:14
+ let mut _3: i32; // in scope 0 at $DIR/aggregate.rs:+2:17: +2:25
+ let mut _4: (i32, u8); // in scope 0 at $DIR/aggregate.rs:+2:17: +2:23
+ let mut _5: u8; // in scope 0 at $DIR/aggregate.rs:+2:21: +2:22
+ let mut _7: i32; // in scope 0 at $DIR/aggregate.rs:+3:18: +3:26
+ let mut _8: (u8, i32); // in scope 0 at $DIR/aggregate.rs:+3:18: +3:24
+ let mut _9: u8; // in scope 0 at $DIR/aggregate.rs:+3:19: +3:20
+ scope 1 {
+ debug first => _2; // in scope 1 at $DIR/aggregate.rs:+2:9: +2:14
+ let _6: i32; // in scope 1 at $DIR/aggregate.rs:+3:9: +3:15
+ scope 2 {
+ debug second => _6; // in scope 2 at $DIR/aggregate.rs:+3:9: +3:15
+ }
+ }
+
+ bb0: {
+ StorageLive(_2); // scope 0 at $DIR/aggregate.rs:+2:9: +2:14
+ StorageLive(_3); // scope 0 at $DIR/aggregate.rs:+2:17: +2:25
+ StorageLive(_4); // scope 0 at $DIR/aggregate.rs:+2:17: +2:23
+ StorageLive(_5); // scope 0 at $DIR/aggregate.rs:+2:21: +2:22
+ _5 = _1; // scope 0 at $DIR/aggregate.rs:+2:21: +2:22
+ _4 = (const 0_i32, move _5); // scope 0 at $DIR/aggregate.rs:+2:17: +2:23
+ StorageDead(_5); // scope 0 at $DIR/aggregate.rs:+2:22: +2:23
+ _3 = const 0_i32; // scope 0 at $DIR/aggregate.rs:+2:17: +2:25
+ _2 = const 1_i32; // scope 0 at $DIR/aggregate.rs:+2:17: +2:29
+ StorageDead(_3); // scope 0 at $DIR/aggregate.rs:+2:28: +2:29
+ StorageDead(_4); // scope 0 at $DIR/aggregate.rs:+2:29: +2:30
+ StorageLive(_6); // scope 1 at $DIR/aggregate.rs:+3:9: +3:15
+ StorageLive(_7); // scope 1 at $DIR/aggregate.rs:+3:18: +3:26
+ StorageLive(_8); // scope 1 at $DIR/aggregate.rs:+3:18: +3:24
+ StorageLive(_9); // scope 1 at $DIR/aggregate.rs:+3:19: +3:20
+ _9 = _1; // scope 1 at $DIR/aggregate.rs:+3:19: +3:20
+ _8 = (move _9, const 1_i32); // scope 1 at $DIR/aggregate.rs:+3:18: +3:24
+ StorageDead(_9); // scope 1 at $DIR/aggregate.rs:+3:23: +3:24
+ _7 = const 1_i32; // scope 1 at $DIR/aggregate.rs:+3:18: +3:26
+ _6 = const 3_i32; // scope 1 at $DIR/aggregate.rs:+3:18: +3:30
+ StorageDead(_7); // scope 1 at $DIR/aggregate.rs:+3:29: +3:30
+ StorageDead(_8); // scope 1 at $DIR/aggregate.rs:+3:30: +3:31
+ _0 = const (); // scope 0 at $DIR/aggregate.rs:+0:15: +4:2
+ StorageDead(_6); // scope 1 at $DIR/aggregate.rs:+4:1: +4:2
+ StorageDead(_2); // scope 0 at $DIR/aggregate.rs:+4:1: +4:2
+ return; // scope 0 at $DIR/aggregate.rs:+4:2: +4:2
+ }
+}
fn main() -> () {
let mut _0: (); // return place in scope 0 at $DIR/aggregate.rs:+0:11: +0:11
- let _1: i32; // in scope 0 at $DIR/aggregate.rs:+1:9: +1:10
- let mut _2: i32; // in scope 0 at $DIR/aggregate.rs:+1:13: +1:24
- let mut _3: (i32, i32, i32); // in scope 0 at $DIR/aggregate.rs:+1:13: +1:22
+ let _1: u8; // in scope 0 at $DIR/aggregate.rs:+1:9: +1:10
+ let mut _2: u8; // in scope 0 at $DIR/aggregate.rs:+1:13: +1:24
+ let mut _3: (i32, u8, i32); // in scope 0 at $DIR/aggregate.rs:+1:13: +1:22
+ let _4: (); // in scope 0 at $DIR/aggregate.rs:+2:5: +2:11
+ let mut _5: u8; // in scope 0 at $DIR/aggregate.rs:+2:9: +2:10
scope 1 {
debug x => _1; // in scope 1 at $DIR/aggregate.rs:+1:9: +1:10
}
StorageLive(_1); // scope 0 at $DIR/aggregate.rs:+1:9: +1:10
StorageLive(_2); // scope 0 at $DIR/aggregate.rs:+1:13: +1:24
StorageLive(_3); // scope 0 at $DIR/aggregate.rs:+1:13: +1:22
- _3 = (const 0_i32, const 1_i32, const 2_i32); // scope 0 at $DIR/aggregate.rs:+1:13: +1:22
-- _2 = (_3.1: i32); // scope 0 at $DIR/aggregate.rs:+1:13: +1:24
-- _1 = Add(move _2, const 0_i32); // scope 0 at $DIR/aggregate.rs:+1:13: +1:28
-+ _2 = const 1_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:24
-+ _1 = const 1_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:28
+ _3 = (const 0_i32, const 1_u8, const 2_i32); // scope 0 at $DIR/aggregate.rs:+1:13: +1:22
+- _2 = (_3.1: u8); // scope 0 at $DIR/aggregate.rs:+1:13: +1:24
+- _1 = Add(move _2, const 0_u8); // scope 0 at $DIR/aggregate.rs:+1:13: +1:28
++ _2 = const 1_u8; // scope 0 at $DIR/aggregate.rs:+1:13: +1:24
++ _1 = const 1_u8; // scope 0 at $DIR/aggregate.rs:+1:13: +1:28
StorageDead(_2); // scope 0 at $DIR/aggregate.rs:+1:27: +1:28
StorageDead(_3); // scope 0 at $DIR/aggregate.rs:+1:28: +1:29
- _0 = const (); // scope 0 at $DIR/aggregate.rs:+0:11: +2:2
- StorageDead(_1); // scope 0 at $DIR/aggregate.rs:+2:1: +2:2
- return; // scope 0 at $DIR/aggregate.rs:+2:2: +2:2
+ StorageLive(_4); // scope 1 at $DIR/aggregate.rs:+2:5: +2:11
+ StorageLive(_5); // scope 1 at $DIR/aggregate.rs:+2:9: +2:10
+- _5 = _1; // scope 1 at $DIR/aggregate.rs:+2:9: +2:10
++ _5 = const 1_u8; // scope 1 at $DIR/aggregate.rs:+2:9: +2:10
+ _4 = foo(move _5) -> bb1; // scope 1 at $DIR/aggregate.rs:+2:5: +2:11
+ // mir::Constant
+ // + span: $DIR/aggregate.rs:8:5: 8:8
+ // + literal: Const { ty: fn(u8) {foo}, val: Value(<ZST>) }
+ }
+
+ bb1: {
+ StorageDead(_5); // scope 1 at $DIR/aggregate.rs:+2:10: +2:11
+ StorageDead(_4); // scope 1 at $DIR/aggregate.rs:+2:11: +2:12
+ _0 = const (); // scope 0 at $DIR/aggregate.rs:+0:11: +3:2
+ StorageDead(_1); // scope 0 at $DIR/aggregate.rs:+3:1: +3:2
+ return; // scope 0 at $DIR/aggregate.rs:+3:2: +3:2
}
}
fn main() -> () {
let mut _0: (); // return place in scope 0 at $DIR/aggregate.rs:+0:11: +0:11
- let _1: i32; // in scope 0 at $DIR/aggregate.rs:+1:9: +1:10
- let mut _2: i32; // in scope 0 at $DIR/aggregate.rs:+1:13: +1:24
- let mut _3: (i32, i32, i32); // in scope 0 at $DIR/aggregate.rs:+1:13: +1:22
+ let _1: u8; // in scope 0 at $DIR/aggregate.rs:+1:9: +1:10
+ let mut _2: u8; // in scope 0 at $DIR/aggregate.rs:+1:13: +1:24
+ let mut _3: (i32, u8, i32); // in scope 0 at $DIR/aggregate.rs:+1:13: +1:22
+ let _4: (); // in scope 0 at $DIR/aggregate.rs:+2:5: +2:11
+ let mut _5: u8; // in scope 0 at $DIR/aggregate.rs:+2:9: +2:10
scope 1 {
debug x => _1; // in scope 1 at $DIR/aggregate.rs:+1:9: +1:10
}
StorageLive(_1); // scope 0 at $DIR/aggregate.rs:+1:9: +1:10
StorageLive(_2); // scope 0 at $DIR/aggregate.rs:+1:13: +1:24
StorageLive(_3); // scope 0 at $DIR/aggregate.rs:+1:13: +1:22
- _3 = (const 0_i32, const 1_i32, const 2_i32); // scope 0 at $DIR/aggregate.rs:+1:13: +1:22
- _2 = const 1_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:24
- _1 = const 1_i32; // scope 0 at $DIR/aggregate.rs:+1:13: +1:28
+ _3 = (const 0_i32, const 1_u8, const 2_i32); // scope 0 at $DIR/aggregate.rs:+1:13: +1:22
+ _2 = const 1_u8; // scope 0 at $DIR/aggregate.rs:+1:13: +1:24
+ _1 = const 1_u8; // scope 0 at $DIR/aggregate.rs:+1:13: +1:28
StorageDead(_2); // scope 0 at $DIR/aggregate.rs:+1:27: +1:28
StorageDead(_3); // scope 0 at $DIR/aggregate.rs:+1:28: +1:29
- _0 = const (); // scope 0 at $DIR/aggregate.rs:+0:11: +2:2
- StorageDead(_1); // scope 0 at $DIR/aggregate.rs:+2:1: +2:2
- return; // scope 0 at $DIR/aggregate.rs:+2:2: +2:2
+ StorageLive(_4); // scope 1 at $DIR/aggregate.rs:+2:5: +2:11
+ StorageLive(_5); // scope 1 at $DIR/aggregate.rs:+2:9: +2:10
+ _5 = const 1_u8; // scope 1 at $DIR/aggregate.rs:+2:9: +2:10
+ _4 = foo(move _5) -> bb1; // scope 1 at $DIR/aggregate.rs:+2:5: +2:11
+ // mir::Constant
+ // + span: $DIR/aggregate.rs:8:5: 8:8
+ // + literal: Const { ty: fn(u8) {foo}, val: Value(<ZST>) }
+ }
+
+ bb1: {
+ StorageDead(_5); // scope 1 at $DIR/aggregate.rs:+2:10: +2:11
+ StorageDead(_4); // scope 1 at $DIR/aggregate.rs:+2:11: +2:12
+ _0 = const (); // scope 0 at $DIR/aggregate.rs:+0:11: +3:2
+ StorageDead(_1); // scope 0 at $DIR/aggregate.rs:+3:1: +3:2
+ return; // scope 0 at $DIR/aggregate.rs:+3:2: +3:2
}
}
// EMIT_MIR aggregate.main.PreCodegen.after.mir
fn main() {
let x = (0, 1, 2).1 + 0;
+ foo(x);
+}
+
+// EMIT_MIR aggregate.foo.ConstProp.diff
+// EMIT_MIR aggregate.foo.PreCodegen.after.mir
+fn foo(x: u8) {
+ // Verify that we still propagate if part of the aggregate is not known.
+ let first = (0, x).0 + 1;
+ let second = (x, 1).1 + 2;
}