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Add some more sanity tests and add a debug log message for it
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15 changes: 15 additions & 0 deletions
15
src/test/mir-opt/const_prop/mutable_variable_unprop_assign.rs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| // compile-flags: -O | ||
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| // EMIT_MIR rustc.main.ConstProp.diff | ||
| fn main() { | ||
| let a = foo(); | ||
| let mut x: (i32, i32) = (1, 2); | ||
| x.1 = a; | ||
| let y = x.1; | ||
| let z = x.0; // this could theoretically be allowed, but we can't handle it right now | ||
| } | ||
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| #[inline(never)] | ||
| fn foo() -> i32 { | ||
| unimplemented!() | ||
| } |
74 changes: 74 additions & 0 deletions
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src/test/mir-opt/const_prop/mutable_variable_unprop_assign/rustc.main.ConstProp.diff
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| - // MIR for `main` before ConstProp | ||
| + // MIR for `main` after ConstProp | ||
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| fn main() -> () { | ||
| let mut _0: (); // return place in scope 0 at $DIR/mutable_variable_unprop_assign.rs:4:11: 4:11 | ||
| let _1: i32; // in scope 0 at $DIR/mutable_variable_unprop_assign.rs:5:9: 5:10 | ||
| let mut _3: i32; // in scope 0 at $DIR/mutable_variable_unprop_assign.rs:7:11: 7:12 | ||
| scope 1 { | ||
| debug a => _1; // in scope 1 at $DIR/mutable_variable_unprop_assign.rs:5:9: 5:10 | ||
| let mut _2: (i32, i32) as UserTypeProjection { base: UserType(0), projs: [] }; // in scope 1 at $DIR/mutable_variable_unprop_assign.rs:6:9: 6:14 | ||
| scope 2 { | ||
| debug x => _2; // in scope 2 at $DIR/mutable_variable_unprop_assign.rs:6:9: 6:14 | ||
| let _4: i32; // in scope 2 at $DIR/mutable_variable_unprop_assign.rs:8:9: 8:10 | ||
| scope 3 { | ||
| debug y => _4; // in scope 3 at $DIR/mutable_variable_unprop_assign.rs:8:9: 8:10 | ||
| let _5: i32; // in scope 3 at $DIR/mutable_variable_unprop_assign.rs:9:9: 9:10 | ||
| scope 4 { | ||
| debug z => _5; // in scope 4 at $DIR/mutable_variable_unprop_assign.rs:9:9: 9:10 | ||
| } | ||
| } | ||
| } | ||
| } | ||
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| bb0: { | ||
| StorageLive(_1); // scope 0 at $DIR/mutable_variable_unprop_assign.rs:5:9: 5:10 | ||
| _1 = const foo() -> bb1; // scope 0 at $DIR/mutable_variable_unprop_assign.rs:5:13: 5:18 | ||
| // ty::Const | ||
| // + ty: fn() -> i32 {foo} | ||
| // + val: Value(Scalar(<ZST>)) | ||
| // mir::Constant | ||
| // + span: $DIR/mutable_variable_unprop_assign.rs:5:13: 5:16 | ||
| // + literal: Const { ty: fn() -> i32 {foo}, val: Value(Scalar(<ZST>)) } | ||
| } | ||
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| bb1: { | ||
| StorageLive(_2); // scope 1 at $DIR/mutable_variable_unprop_assign.rs:6:9: 6:14 | ||
| _2 = (const 1i32, const 2i32); // scope 1 at $DIR/mutable_variable_unprop_assign.rs:6:29: 6:35 | ||
| // ty::Const | ||
| // + ty: i32 | ||
| // + val: Value(Scalar(0x00000001)) | ||
| // mir::Constant | ||
| - // + span: $DIR/mutable_variable_unprop_assign.rs:6:30: 6:31 | ||
| + // + span: $DIR/mutable_variable_unprop_assign.rs:6:29: 6:35 | ||
| // + literal: Const { ty: i32, val: Value(Scalar(0x00000001)) } | ||
| // ty::Const | ||
| // + ty: i32 | ||
| // + val: Value(Scalar(0x00000002)) | ||
| // mir::Constant | ||
| - // + span: $DIR/mutable_variable_unprop_assign.rs:6:33: 6:34 | ||
| + // + span: $DIR/mutable_variable_unprop_assign.rs:6:29: 6:35 | ||
| // + literal: Const { ty: i32, val: Value(Scalar(0x00000002)) } | ||
| StorageLive(_3); // scope 2 at $DIR/mutable_variable_unprop_assign.rs:7:11: 7:12 | ||
| _3 = _1; // scope 2 at $DIR/mutable_variable_unprop_assign.rs:7:11: 7:12 | ||
| (_2.1: i32) = move _3; // scope 2 at $DIR/mutable_variable_unprop_assign.rs:7:5: 7:12 | ||
| StorageDead(_3); // scope 2 at $DIR/mutable_variable_unprop_assign.rs:7:11: 7:12 | ||
| StorageLive(_4); // scope 2 at $DIR/mutable_variable_unprop_assign.rs:8:9: 8:10 | ||
| _4 = (_2.1: i32); // scope 2 at $DIR/mutable_variable_unprop_assign.rs:8:13: 8:16 | ||
| StorageLive(_5); // scope 3 at $DIR/mutable_variable_unprop_assign.rs:9:9: 9:10 | ||
| _5 = (_2.0: i32); // scope 3 at $DIR/mutable_variable_unprop_assign.rs:9:13: 9:16 | ||
| _0 = const (); // scope 0 at $DIR/mutable_variable_unprop_assign.rs:4:11: 10:2 | ||
| // ty::Const | ||
| // + ty: () | ||
| // + val: Value(Scalar(<ZST>)) | ||
| // mir::Constant | ||
| // + span: $DIR/mutable_variable_unprop_assign.rs:4:11: 10:2 | ||
| // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) } | ||
| StorageDead(_5); // scope 3 at $DIR/mutable_variable_unprop_assign.rs:10:1: 10:2 | ||
| StorageDead(_4); // scope 2 at $DIR/mutable_variable_unprop_assign.rs:10:1: 10:2 | ||
| StorageDead(_2); // scope 1 at $DIR/mutable_variable_unprop_assign.rs:10:1: 10:2 | ||
| StorageDead(_1); // scope 0 at $DIR/mutable_variable_unprop_assign.rs:10:1: 10:2 | ||
| return; // scope 0 at $DIR/mutable_variable_unprop_assign.rs:10:2: 10:2 | ||
| } | ||
| } | ||
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