diff options
Diffstat (limited to 'tests/mir-opt/nll')
| -rw-r--r-- | tests/mir-opt/nll/named_lifetimes_basic.rs | 15 | ||||
| -rw-r--r-- | tests/mir-opt/nll/named_lifetimes_basic.use_x.nll.0.mir | 47 | ||||
| -rw-r--r-- | tests/mir-opt/nll/region_subtyping_basic.main.nll.0.32bit.mir | 111 | ||||
| -rw-r--r-- | tests/mir-opt/nll/region_subtyping_basic.main.nll.0.64bit.mir | 111 | ||||
| -rw-r--r-- | tests/mir-opt/nll/region_subtyping_basic.rs | 25 |
5 files changed, 309 insertions, 0 deletions
diff --git a/tests/mir-opt/nll/named_lifetimes_basic.rs b/tests/mir-opt/nll/named_lifetimes_basic.rs new file mode 100644 index 000000000..843716033 --- /dev/null +++ b/tests/mir-opt/nll/named_lifetimes_basic.rs @@ -0,0 +1,15 @@ +// Basic test for named lifetime translation. Check that we +// instantiate the types that appear in function arguments with +// suitable variables and that we setup the outlives relationship +// between R0 and R1 properly. + +// compile-flags: -Zverbose +// ^^^^^^^^^ force compiler to dump more region information + +#![allow(warnings)] + +// EMIT_MIR named_lifetimes_basic.use_x.nll.0.mir +fn use_x<'a, 'b: 'a, 'c>(w: &'a mut i32, x: &'b u32, y: &'a u32, z: &'c u32) -> bool { true } + +fn main() { +} diff --git a/tests/mir-opt/nll/named_lifetimes_basic.use_x.nll.0.mir b/tests/mir-opt/nll/named_lifetimes_basic.use_x.nll.0.mir new file mode 100644 index 000000000..6cd6d8b77 --- /dev/null +++ b/tests/mir-opt/nll/named_lifetimes_basic.use_x.nll.0.mir @@ -0,0 +1,47 @@ +// MIR for `use_x` 0 nll + +| Free Region Mapping +| '_#0r | Global | ['_#2r, '_#1r, '_#0r, '_#4r, '_#3r] +| '_#1r | Local | ['_#1r, '_#4r] +| '_#2r | Local | ['_#2r, '_#1r, '_#4r] +| '_#3r | Local | ['_#4r, '_#3r] +| '_#4r | Local | ['_#4r] +| +| Inferred Region Values +| '_#0r | U0 | {bb0[0..=1], '_#0r, '_#1r, '_#2r, '_#3r, '_#4r} +| '_#1r | U0 | {bb0[0..=1], '_#1r} +| '_#2r | U0 | {bb0[0..=1], '_#2r} +| '_#3r | U0 | {bb0[0..=1], '_#3r} +| '_#4r | U0 | {bb0[0..=1], '_#4r} +| '_#5r | U0 | {bb0[0..=1], '_#1r} +| '_#6r | U0 | {bb0[0..=1], '_#2r} +| '_#7r | U0 | {bb0[0..=1], '_#1r} +| '_#8r | U0 | {bb0[0..=1], '_#3r} +| +| Inference Constraints +| '_#0r live at {bb0[0..=1]} +| '_#1r live at {bb0[0..=1]} +| '_#2r live at {bb0[0..=1]} +| '_#3r live at {bb0[0..=1]} +| '_#4r live at {bb0[0..=1]} +| '_#1r: '_#5r due to BoringNoLocation at All($DIR/named_lifetimes_basic.rs:12:26: 12:27) ($DIR/named_lifetimes_basic.rs:12:26: 12:27 (#0) +| '_#1r: '_#7r due to BoringNoLocation at All($DIR/named_lifetimes_basic.rs:12:54: 12:55) ($DIR/named_lifetimes_basic.rs:12:54: 12:55 (#0) +| '_#2r: '_#6r due to BoringNoLocation at All($DIR/named_lifetimes_basic.rs:12:42: 12:43) ($DIR/named_lifetimes_basic.rs:12:42: 12:43 (#0) +| '_#3r: '_#8r due to BoringNoLocation at All($DIR/named_lifetimes_basic.rs:12:66: 12:67) ($DIR/named_lifetimes_basic.rs:12:66: 12:67 (#0) +| '_#5r: '_#1r due to BoringNoLocation at All($DIR/named_lifetimes_basic.rs:12:26: 12:27) ($DIR/named_lifetimes_basic.rs:12:26: 12:27 (#0) +| '_#6r: '_#2r due to BoringNoLocation at All($DIR/named_lifetimes_basic.rs:12:42: 12:43) ($DIR/named_lifetimes_basic.rs:12:42: 12:43 (#0) +| '_#7r: '_#1r due to BoringNoLocation at All($DIR/named_lifetimes_basic.rs:12:54: 12:55) ($DIR/named_lifetimes_basic.rs:12:54: 12:55 (#0) +| '_#8r: '_#3r due to BoringNoLocation at All($DIR/named_lifetimes_basic.rs:12:66: 12:67) ($DIR/named_lifetimes_basic.rs:12:66: 12:67 (#0) +| +fn use_x(_1: &'_#5r mut i32, _2: &'_#6r u32, _3: &'_#7r u32, _4: &'_#8r u32) -> bool { + debug w => _1; // in scope 0 at $DIR/named_lifetimes_basic.rs:+0:26: +0:27 + debug x => _2; // in scope 0 at $DIR/named_lifetimes_basic.rs:+0:42: +0:43 + debug y => _3; // in scope 0 at $DIR/named_lifetimes_basic.rs:+0:54: +0:55 + debug z => _4; // in scope 0 at $DIR/named_lifetimes_basic.rs:+0:66: +0:67 + let mut _0: bool; // return place in scope 0 at $DIR/named_lifetimes_basic.rs:+0:81: +0:85 + + bb0: { + _0 = const ConstValue(Scalar(0x01): bool); // bb0[0]: scope 0 at $DIR/named_lifetimes_basic.rs:+0:88: +0:92 + return; // bb0[1]: scope 0 at $DIR/named_lifetimes_basic.rs:+0:94: +0:94 + } +} diff --git a/tests/mir-opt/nll/region_subtyping_basic.main.nll.0.32bit.mir b/tests/mir-opt/nll/region_subtyping_basic.main.nll.0.32bit.mir new file mode 100644 index 000000000..798e45df8 --- /dev/null +++ b/tests/mir-opt/nll/region_subtyping_basic.main.nll.0.32bit.mir @@ -0,0 +1,111 @@ +// MIR for `main` 0 nll + +| Free Region Mapping +| '_#0r | Global | ['_#0r, '_#1r] +| '_#1r | Local | ['_#1r] +| +| Inferred Region Values +| '_#0r | U0 | {bb0[0..=8], bb1[0..=7], bb2[0..=3], bb3[0..=3], bb4[0..=1], bb5[0..=2], bb6[0..=5], bb7[0], '_#0r, '_#1r} +| '_#1r | U0 | {bb0[0..=8], bb1[0..=7], bb2[0..=3], bb3[0..=3], bb4[0..=1], bb5[0..=2], bb6[0..=5], bb7[0], '_#1r} +| '_#2r | U0 | {bb1[0..=7], bb2[0..=2]} +| '_#3r | U0 | {bb1[1..=7], bb2[0..=2]} +| '_#4r | U0 | {bb1[4..=7], bb2[0..=2]} +| +| Inference Constraints +| '_#0r live at {bb0[0..=8], bb1[0..=7], bb2[0..=3], bb3[0..=3], bb4[0..=1], bb5[0..=2], bb6[0..=5], bb7[0]} +| '_#1r live at {bb0[0..=8], bb1[0..=7], bb2[0..=3], bb3[0..=3], bb4[0..=1], bb5[0..=2], bb6[0..=5], bb7[0]} +| '_#2r live at {bb1[0]} +| '_#3r live at {bb1[1..=3]} +| '_#4r live at {bb1[4..=7], bb2[0..=2]} +| '_#2r: '_#3r due to Assignment at Single(bb1[0]) ($DIR/region_subtyping_basic.rs:18:13: 18:18 (#0) +| '_#3r: '_#4r due to Assignment at Single(bb1[3]) ($DIR/region_subtyping_basic.rs:19:13: 19:14 (#0) +| +fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/region_subtyping_basic.rs:+0:11: +0:11 + let mut _1: [usize; Const(Value(Leaf(0x00000003)): usize)]; // in scope 0 at $DIR/region_subtyping_basic.rs:+1:9: +1:14 + let _3: usize; // in scope 0 at $DIR/region_subtyping_basic.rs:+2:16: +2:17 + let mut _4: usize; // in scope 0 at $DIR/region_subtyping_basic.rs:+2:14: +2:18 + let mut _5: bool; // in scope 0 at $DIR/region_subtyping_basic.rs:+2:14: +2:18 + let mut _7: bool; // in scope 0 at $DIR/region_subtyping_basic.rs:+4:8: +4:12 + let _8: bool; // in scope 0 at $DIR/region_subtyping_basic.rs:+5:9: +5:18 + let mut _9: usize; // in scope 0 at $DIR/region_subtyping_basic.rs:+5:15: +5:17 + let _10: bool; // in scope 0 at $DIR/region_subtyping_basic.rs:+7:9: +7:18 + scope 1 { + debug v => _1; // in scope 1 at $DIR/region_subtyping_basic.rs:+1:9: +1:14 + let _2: &'_#3r usize; // in scope 1 at $DIR/region_subtyping_basic.rs:+2:9: +2:10 + scope 2 { + debug p => _2; // in scope 2 at $DIR/region_subtyping_basic.rs:+2:9: +2:10 + let _6: &'_#4r usize; // in scope 2 at $DIR/region_subtyping_basic.rs:+3:9: +3:10 + scope 3 { + debug q => _6; // in scope 3 at $DIR/region_subtyping_basic.rs:+3:9: +3:10 + } + } + } + + bb0: { + StorageLive(_1); // bb0[0]: scope 0 at $DIR/region_subtyping_basic.rs:+1:9: +1:14 + _1 = [const ConstValue(Scalar(0x00000001): usize), const ConstValue(Scalar(0x00000002): usize), const ConstValue(Scalar(0x00000003): usize)]; // bb0[1]: scope 0 at $DIR/region_subtyping_basic.rs:+1:17: +1:26 + FakeRead(ForLet(None), _1); // bb0[2]: scope 0 at $DIR/region_subtyping_basic.rs:+1:9: +1:14 + StorageLive(_2); // bb0[3]: scope 1 at $DIR/region_subtyping_basic.rs:+2:9: +2:10 + StorageLive(_3); // bb0[4]: scope 1 at $DIR/region_subtyping_basic.rs:+2:16: +2:17 + _3 = const ConstValue(Scalar(0x00000000): usize); // bb0[5]: scope 1 at $DIR/region_subtyping_basic.rs:+2:16: +2:17 + _4 = Len(_1); // bb0[6]: scope 1 at $DIR/region_subtyping_basic.rs:+2:14: +2:18 + _5 = Lt(_3, _4); // bb0[7]: scope 1 at $DIR/region_subtyping_basic.rs:+2:14: +2:18 + assert(move _5, "index out of bounds: the length is {} but the index is {}", move _4, _3) -> [success: bb1, unwind: bb7]; // bb0[8]: scope 1 at $DIR/region_subtyping_basic.rs:+2:14: +2:18 + } + + bb1: { + _2 = &'_#2r _1[_3]; // bb1[0]: scope 1 at $DIR/region_subtyping_basic.rs:+2:13: +2:18 + FakeRead(ForLet(None), _2); // bb1[1]: scope 1 at $DIR/region_subtyping_basic.rs:+2:9: +2:10 + StorageLive(_6); // bb1[2]: scope 2 at $DIR/region_subtyping_basic.rs:+3:9: +3:10 + _6 = _2; // bb1[3]: scope 2 at $DIR/region_subtyping_basic.rs:+3:13: +3:14 + FakeRead(ForLet(None), _6); // bb1[4]: scope 2 at $DIR/region_subtyping_basic.rs:+3:9: +3:10 + StorageLive(_7); // bb1[5]: scope 3 at $DIR/region_subtyping_basic.rs:+4:8: +4:12 + _7 = const ConstValue(Scalar(0x01): bool); // bb1[6]: scope 3 at $DIR/region_subtyping_basic.rs:+4:8: +4:12 + switchInt(move _7) -> [0: bb4, otherwise: bb2]; // bb1[7]: scope 3 at $DIR/region_subtyping_basic.rs:+4:8: +4:12 + } + + bb2: { + StorageLive(_8); // bb2[0]: scope 3 at $DIR/region_subtyping_basic.rs:+5:9: +5:18 + StorageLive(_9); // bb2[1]: scope 3 at $DIR/region_subtyping_basic.rs:+5:15: +5:17 + _9 = (*_6); // bb2[2]: scope 3 at $DIR/region_subtyping_basic.rs:+5:15: +5:17 + _8 = ConstValue(ZeroSized: fn(usize) -> bool {use_x})(move _9) -> [return: bb3, unwind: bb7]; // bb2[3]: scope 3 at $DIR/region_subtyping_basic.rs:+5:9: +5:18 + // mir::Constant + // + span: $DIR/region_subtyping_basic.rs:21:9: 21:14 + // + literal: Const { ty: fn(usize) -> bool {use_x}, val: Value(<ZST>) } + } + + bb3: { + StorageDead(_9); // bb3[0]: scope 3 at $DIR/region_subtyping_basic.rs:+5:17: +5:18 + StorageDead(_8); // bb3[1]: scope 3 at $DIR/region_subtyping_basic.rs:+5:18: +5:19 + _0 = const ConstValue(ZeroSized: ()); // bb3[2]: scope 3 at $DIR/region_subtyping_basic.rs:+4:13: +6:6 + goto -> bb6; // bb3[3]: scope 3 at $DIR/region_subtyping_basic.rs:+4:5: +8:6 + } + + bb4: { + StorageLive(_10); // bb4[0]: scope 3 at $DIR/region_subtyping_basic.rs:+7:9: +7:18 + _10 = ConstValue(ZeroSized: fn(usize) -> bool {use_x})(const ConstValue(Scalar(0x00000016): usize)) -> [return: bb5, unwind: bb7]; // bb4[1]: scope 3 at $DIR/region_subtyping_basic.rs:+7:9: +7:18 + // mir::Constant + // + span: $DIR/region_subtyping_basic.rs:23:9: 23:14 + // + literal: Const { ty: fn(usize) -> bool {use_x}, val: Value(<ZST>) } + } + + bb5: { + StorageDead(_10); // bb5[0]: scope 3 at $DIR/region_subtyping_basic.rs:+7:18: +7:19 + _0 = const ConstValue(ZeroSized: ()); // bb5[1]: scope 3 at $DIR/region_subtyping_basic.rs:+6:12: +8:6 + goto -> bb6; // bb5[2]: scope 3 at $DIR/region_subtyping_basic.rs:+4:5: +8:6 + } + + bb6: { + StorageDead(_7); // bb6[0]: scope 3 at $DIR/region_subtyping_basic.rs:+8:5: +8:6 + StorageDead(_6); // bb6[1]: scope 2 at $DIR/region_subtyping_basic.rs:+9:1: +9:2 + StorageDead(_3); // bb6[2]: scope 1 at $DIR/region_subtyping_basic.rs:+9:1: +9:2 + StorageDead(_2); // bb6[3]: scope 1 at $DIR/region_subtyping_basic.rs:+9:1: +9:2 + StorageDead(_1); // bb6[4]: scope 0 at $DIR/region_subtyping_basic.rs:+9:1: +9:2 + return; // bb6[5]: scope 0 at $DIR/region_subtyping_basic.rs:+9:2: +9:2 + } + + bb7 (cleanup): { + resume; // bb7[0]: scope 0 at $DIR/region_subtyping_basic.rs:+0:1: +9:2 + } +} diff --git a/tests/mir-opt/nll/region_subtyping_basic.main.nll.0.64bit.mir b/tests/mir-opt/nll/region_subtyping_basic.main.nll.0.64bit.mir new file mode 100644 index 000000000..4767bfc76 --- /dev/null +++ b/tests/mir-opt/nll/region_subtyping_basic.main.nll.0.64bit.mir @@ -0,0 +1,111 @@ +// MIR for `main` 0 nll + +| Free Region Mapping +| '_#0r | Global | ['_#0r, '_#1r] +| '_#1r | Local | ['_#1r] +| +| Inferred Region Values +| '_#0r | U0 | {bb0[0..=8], bb1[0..=7], bb2[0..=3], bb3[0..=3], bb4[0..=1], bb5[0..=2], bb6[0..=5], bb7[0], '_#0r, '_#1r} +| '_#1r | U0 | {bb0[0..=8], bb1[0..=7], bb2[0..=3], bb3[0..=3], bb4[0..=1], bb5[0..=2], bb6[0..=5], bb7[0], '_#1r} +| '_#2r | U0 | {bb1[0..=7], bb2[0..=2]} +| '_#3r | U0 | {bb1[1..=7], bb2[0..=2]} +| '_#4r | U0 | {bb1[4..=7], bb2[0..=2]} +| +| Inference Constraints +| '_#0r live at {bb0[0..=8], bb1[0..=7], bb2[0..=3], bb3[0..=3], bb4[0..=1], bb5[0..=2], bb6[0..=5], bb7[0]} +| '_#1r live at {bb0[0..=8], bb1[0..=7], bb2[0..=3], bb3[0..=3], bb4[0..=1], bb5[0..=2], bb6[0..=5], bb7[0]} +| '_#2r live at {bb1[0]} +| '_#3r live at {bb1[1..=3]} +| '_#4r live at {bb1[4..=7], bb2[0..=2]} +| '_#2r: '_#3r due to Assignment at Single(bb1[0]) ($DIR/region_subtyping_basic.rs:18:13: 18:18 (#0) +| '_#3r: '_#4r due to Assignment at Single(bb1[3]) ($DIR/region_subtyping_basic.rs:19:13: 19:14 (#0) +| +fn main() -> () { + let mut _0: (); // return place in scope 0 at $DIR/region_subtyping_basic.rs:+0:11: +0:11 + let mut _1: [usize; Const(Value(Leaf(0x0000000000000003)): usize)]; // in scope 0 at $DIR/region_subtyping_basic.rs:+1:9: +1:14 + let _3: usize; // in scope 0 at $DIR/region_subtyping_basic.rs:+2:16: +2:17 + let mut _4: usize; // in scope 0 at $DIR/region_subtyping_basic.rs:+2:14: +2:18 + let mut _5: bool; // in scope 0 at $DIR/region_subtyping_basic.rs:+2:14: +2:18 + let mut _7: bool; // in scope 0 at $DIR/region_subtyping_basic.rs:+4:8: +4:12 + let _8: bool; // in scope 0 at $DIR/region_subtyping_basic.rs:+5:9: +5:18 + let mut _9: usize; // in scope 0 at $DIR/region_subtyping_basic.rs:+5:15: +5:17 + let _10: bool; // in scope 0 at $DIR/region_subtyping_basic.rs:+7:9: +7:18 + scope 1 { + debug v => _1; // in scope 1 at $DIR/region_subtyping_basic.rs:+1:9: +1:14 + let _2: &'_#3r usize; // in scope 1 at $DIR/region_subtyping_basic.rs:+2:9: +2:10 + scope 2 { + debug p => _2; // in scope 2 at $DIR/region_subtyping_basic.rs:+2:9: +2:10 + let _6: &'_#4r usize; // in scope 2 at $DIR/region_subtyping_basic.rs:+3:9: +3:10 + scope 3 { + debug q => _6; // in scope 3 at $DIR/region_subtyping_basic.rs:+3:9: +3:10 + } + } + } + + bb0: { + StorageLive(_1); // bb0[0]: scope 0 at $DIR/region_subtyping_basic.rs:+1:9: +1:14 + _1 = [const ConstValue(Scalar(0x0000000000000001): usize), const ConstValue(Scalar(0x0000000000000002): usize), const ConstValue(Scalar(0x0000000000000003): usize)]; // bb0[1]: scope 0 at $DIR/region_subtyping_basic.rs:+1:17: +1:26 + FakeRead(ForLet(None), _1); // bb0[2]: scope 0 at $DIR/region_subtyping_basic.rs:+1:9: +1:14 + StorageLive(_2); // bb0[3]: scope 1 at $DIR/region_subtyping_basic.rs:+2:9: +2:10 + StorageLive(_3); // bb0[4]: scope 1 at $DIR/region_subtyping_basic.rs:+2:16: +2:17 + _3 = const ConstValue(Scalar(0x0000000000000000): usize); // bb0[5]: scope 1 at $DIR/region_subtyping_basic.rs:+2:16: +2:17 + _4 = Len(_1); // bb0[6]: scope 1 at $DIR/region_subtyping_basic.rs:+2:14: +2:18 + _5 = Lt(_3, _4); // bb0[7]: scope 1 at $DIR/region_subtyping_basic.rs:+2:14: +2:18 + assert(move _5, "index out of bounds: the length is {} but the index is {}", move _4, _3) -> [success: bb1, unwind: bb7]; // bb0[8]: scope 1 at $DIR/region_subtyping_basic.rs:+2:14: +2:18 + } + + bb1: { + _2 = &'_#2r _1[_3]; // bb1[0]: scope 1 at $DIR/region_subtyping_basic.rs:+2:13: +2:18 + FakeRead(ForLet(None), _2); // bb1[1]: scope 1 at $DIR/region_subtyping_basic.rs:+2:9: +2:10 + StorageLive(_6); // bb1[2]: scope 2 at $DIR/region_subtyping_basic.rs:+3:9: +3:10 + _6 = _2; // bb1[3]: scope 2 at $DIR/region_subtyping_basic.rs:+3:13: +3:14 + FakeRead(ForLet(None), _6); // bb1[4]: scope 2 at $DIR/region_subtyping_basic.rs:+3:9: +3:10 + StorageLive(_7); // bb1[5]: scope 3 at $DIR/region_subtyping_basic.rs:+4:8: +4:12 + _7 = const ConstValue(Scalar(0x01): bool); // bb1[6]: scope 3 at $DIR/region_subtyping_basic.rs:+4:8: +4:12 + switchInt(move _7) -> [0: bb4, otherwise: bb2]; // bb1[7]: scope 3 at $DIR/region_subtyping_basic.rs:+4:8: +4:12 + } + + bb2: { + StorageLive(_8); // bb2[0]: scope 3 at $DIR/region_subtyping_basic.rs:+5:9: +5:18 + StorageLive(_9); // bb2[1]: scope 3 at $DIR/region_subtyping_basic.rs:+5:15: +5:17 + _9 = (*_6); // bb2[2]: scope 3 at $DIR/region_subtyping_basic.rs:+5:15: +5:17 + _8 = ConstValue(ZeroSized: fn(usize) -> bool {use_x})(move _9) -> [return: bb3, unwind: bb7]; // bb2[3]: scope 3 at $DIR/region_subtyping_basic.rs:+5:9: +5:18 + // mir::Constant + // + span: $DIR/region_subtyping_basic.rs:21:9: 21:14 + // + literal: Const { ty: fn(usize) -> bool {use_x}, val: Value(<ZST>) } + } + + bb3: { + StorageDead(_9); // bb3[0]: scope 3 at $DIR/region_subtyping_basic.rs:+5:17: +5:18 + StorageDead(_8); // bb3[1]: scope 3 at $DIR/region_subtyping_basic.rs:+5:18: +5:19 + _0 = const ConstValue(ZeroSized: ()); // bb3[2]: scope 3 at $DIR/region_subtyping_basic.rs:+4:13: +6:6 + goto -> bb6; // bb3[3]: scope 3 at $DIR/region_subtyping_basic.rs:+4:5: +8:6 + } + + bb4: { + StorageLive(_10); // bb4[0]: scope 3 at $DIR/region_subtyping_basic.rs:+7:9: +7:18 + _10 = ConstValue(ZeroSized: fn(usize) -> bool {use_x})(const ConstValue(Scalar(0x0000000000000016): usize)) -> [return: bb5, unwind: bb7]; // bb4[1]: scope 3 at $DIR/region_subtyping_basic.rs:+7:9: +7:18 + // mir::Constant + // + span: $DIR/region_subtyping_basic.rs:23:9: 23:14 + // + literal: Const { ty: fn(usize) -> bool {use_x}, val: Value(<ZST>) } + } + + bb5: { + StorageDead(_10); // bb5[0]: scope 3 at $DIR/region_subtyping_basic.rs:+7:18: +7:19 + _0 = const ConstValue(ZeroSized: ()); // bb5[1]: scope 3 at $DIR/region_subtyping_basic.rs:+6:12: +8:6 + goto -> bb6; // bb5[2]: scope 3 at $DIR/region_subtyping_basic.rs:+4:5: +8:6 + } + + bb6: { + StorageDead(_7); // bb6[0]: scope 3 at $DIR/region_subtyping_basic.rs:+8:5: +8:6 + StorageDead(_6); // bb6[1]: scope 2 at $DIR/region_subtyping_basic.rs:+9:1: +9:2 + StorageDead(_3); // bb6[2]: scope 1 at $DIR/region_subtyping_basic.rs:+9:1: +9:2 + StorageDead(_2); // bb6[3]: scope 1 at $DIR/region_subtyping_basic.rs:+9:1: +9:2 + StorageDead(_1); // bb6[4]: scope 0 at $DIR/region_subtyping_basic.rs:+9:1: +9:2 + return; // bb6[5]: scope 0 at $DIR/region_subtyping_basic.rs:+9:2: +9:2 + } + + bb7 (cleanup): { + resume; // bb7[0]: scope 0 at $DIR/region_subtyping_basic.rs:+0:1: +9:2 + } +} diff --git a/tests/mir-opt/nll/region_subtyping_basic.rs b/tests/mir-opt/nll/region_subtyping_basic.rs new file mode 100644 index 000000000..64332f302 --- /dev/null +++ b/tests/mir-opt/nll/region_subtyping_basic.rs @@ -0,0 +1,25 @@ +// Basic test for liveness constraints: the region (`R1`) that appears +// in the type of `p` includes the points after `&v[0]` up to (but not +// including) the call to `use_x`. The `else` branch is not included. + +// compile-flags:-Zverbose +// ^^^^^^^^^ force compiler to dump more region information + +#![allow(warnings)] + +fn use_x(_: usize) -> bool { + true +} + +// EMIT_MIR_FOR_EACH_BIT_WIDTH +// EMIT_MIR region_subtyping_basic.main.nll.0.mir +fn main() { + let mut v = [1, 2, 3]; + let p = &v[0]; + let q = p; + if true { + use_x(*q); + } else { + use_x(22); + } +} |