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Add FileCheck for enum.rs

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This commit is contained in:
sfzhu93 2024-01-07 22:03:42 -08:00
parent e05c779ee3
commit 33e5d851a9
8 changed files with 86 additions and 34 deletions
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4
tests/mir-opt/dataflow-const-prop/enum.constant.DataflowConstProp.64bit.diff
View File

@ -14,10 +14,10 @@
debug x => _2;
}
scope 3 {
debug x => _4;
debug x1 => _4;
}
scope 4 {
debug x => _5;
debug x2 => _5;
}
}

2
tests/mir-opt/dataflow-const-prop/enum.multiple.DataflowConstProp.32bit.diff
View File

@ -14,7 +14,7 @@
let _6: u8;
let _8: u8;
scope 2 {
debug x => _6;
debug x2 => _6;
let _9: u8;
scope 4 {
debug y => _9;

2
tests/mir-opt/dataflow-const-prop/enum.multiple.DataflowConstProp.64bit.diff
View File

@ -14,7 +14,7 @@
let _6: u8;
let _8: u8;
scope 2 {
debug x => _6;
debug x2 => _6;
let _9: u8;
scope 4 {
debug y => _9;

72
tests/mir-opt/dataflow-const-prop/enum.rs
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@ -1,4 +1,3 @@
// skip-filecheck
// unit-test: DataflowConstProp
// EMIT_MIR_FOR_EACH_BIT_WIDTH
@ -13,27 +12,66 @@ enum E {
}
// EMIT_MIR enum.simple.DataflowConstProp.diff
// CHECK-LABEL: fn simple(
fn simple() {
// CHECK: debug e => [[e:_.*]];
// CHECK: debug x => [[x:_.*]];
// CHECK: [[e]] = const E::V1(0_i32);
let e = E::V1(0);
let x = match e { E::V1(x) => x, E::V2(x) => x };
// CHECK: switchInt(const 0_isize) -> [0: bb[[target_bb:[0-9]+]], 1: bb1, otherwise: bb2];
// CHECK: bb[[target_bb]]: {
// CHECK: [[x]] = const 0_i32;
let x = match e { E::V1(x1) => x1, E::V2(x2) => x2 };
}
// EMIT_MIR enum.constant.DataflowConstProp.diff
// CHECK-LABEL: fn constant(
fn constant() {
// CHECK: debug e => [[e:_.*]];
// CHECK: debug x => [[x:_.*]];
const C: E = E::V1(0);
// CHECK: [[e]] = const _;
let e = C;
let x = match e { E::V1(x) => x, E::V2(x) => x };
// CHECK: switchInt(const 0_isize) -> [0: bb[[target_bb:[0-9]+]], 1: bb1, otherwise: bb2];
// CHECK: bb[[target_bb]]: {
// CHECK: [[x]] = const 0_i32;
let x = match e { E::V1(x1) => x1, E::V2(x2) => x2 };
}
// EMIT_MIR enum.statics.DataflowConstProp.diff
// CHECK-LABEL: fn statics(
fn statics() {
// CHECK: debug e1 => [[e1:_.*]];
// CHECK: debug x1 => [[x1:_.*]];
// CHECK: debug e2 => [[e2:_.*]];
// CHECK: debug x2 => [[x2:_.*]];
static C: E = E::V1(0);
let e = C;
let x = match e { E::V1(x) => x, E::V2(x) => x };
// CHECK: [[e1]] = const E::V1(0_i32);
let e1 = C;
// CHECK: switchInt(const 0_isize) -> [0: bb[[target_bb1:[0-9]+]], 1: bb1, otherwise: bb2];
// CHECK: bb[[target_bb]]: {
// CHECK: [[x1]] = const 0_i32;
let x1 = match e1 { E::V1(x11) => x11, E::V2(x12) => x12 };
static RC: &E = &E::V2(4);
let e = RC;
let x = match e { E::V1(x) => x, E::V2(x) => x };
// CHECK: [[t:_.*]] = const {alloc2: &&E};
// CHECK: [[e2]] = (*[[t]]);
let e2 = RC;
// CHECK: switchInt(move _{{[0-9]+}}) -> [0: bb{{[0-9]+}}, 1: bb{{[0-9]+}}, otherwise: bb{{[0-9]+}}];
// FIXME: add checks for x2. Currently, their MIRs are not symmetric in the two
// switch branches.
// One is `_9 = &(*_12) and another is `_9 = _11`. It is different from what we can
// get by printing MIR directly. It is better to check if there are any bugs in the
// MIR passes around this stage.
let x2 = match e2 { E::V1(x21) => x21, E::V2(x22) => x22 };
}
#[rustc_layout_scalar_valid_range_start(1)]
@ -41,6 +79,8 @@ fn statics() {
struct NonZeroUsize(usize);
// EMIT_MIR enum.mutate_discriminant.DataflowConstProp.diff
// CHECK-LABEL: fn mutate_discriminant(
#[custom_mir(dialect = "runtime", phase = "post-cleanup")]
fn mutate_discriminant() -> u8 {
mir!(
@ -50,7 +90,11 @@ fn mutate_discriminant() -> u8 {
// This assignment overwrites the niche in which the discriminant is stored.
place!(Field(Field(Variant(x, 1), 0), 0)) = 0_usize;
// So we cannot know the value of this discriminant.
// CHECK: [[a:_.*]] = discriminant(_{{[0-9]*}});
let a = Discriminant(x);
// CHECK: switchInt([[a]]) -> [0: bb{{[0-9]+}}, otherwise: bb{{[0-9]+}}];
match a {
0 => bb1,
_ => bad,
@ -68,18 +112,26 @@ fn mutate_discriminant() -> u8 {
}
// EMIT_MIR enum.multiple.DataflowConstProp.diff
// CHECK-LABEL: fn multiple(
fn multiple(x: bool, i: u8) {
// CHECK: debug x => [[x:_.*]];
// CHECK: debug e => [[e:_.*]];
// CHECK: debug x2 => [[x2:_.*]];
let e = if x {
// CHECK: [[e]] = Option::<u8>::Some(move _{{[0-9]+}});
Some(i)
} else {
// CHECK: [[e]] = Option::<u8>::None;
None
};
// The dataflow state must have:
// discriminant(e) => Top
// (e as Some).0 => Top
let x = match e { Some(i) => i, None => 0 };
// Therefore, `x` should be `Top` here, and no replacement shall happen.
let y = x;
// CHECK: [[x2]] = const 0_u8;
// CHECK: [[x2]] = _{{[0-9]+}}
let x2 = match e { Some(i) => i, None => 0 };
// Therefore, `x2` should be `Top` here, and no replacement shall happen.
let y = x2;
}
fn main() {

4
tests/mir-opt/dataflow-const-prop/enum.simple.DataflowConstProp.32bit.diff
View File

@ -14,10 +14,10 @@
debug x => _2;
}
scope 3 {
debug x => _4;
debug x1 => _4;
}
scope 4 {
debug x => _5;
debug x2 => _5;
}
}

4
tests/mir-opt/dataflow-const-prop/enum.simple.DataflowConstProp.64bit.diff
View File

@ -14,10 +14,10 @@
debug x => _2;
}
scope 3 {
debug x => _4;
debug x1 => _4;
}
scope 4 {
debug x => _5;
debug x2 => _5;
}
}

16
tests/mir-opt/dataflow-const-prop/enum.statics.DataflowConstProp.32bit.diff
View File

@ -9,34 +9,34 @@
let mut _8: &&E;
let mut _10: isize;
scope 1 {
debug e => _1;
debug e1 => _1;
let _3: i32;
let _5: i32;
let _6: i32;
scope 2 {
debug x => _3;
debug x1 => _3;
let _7: &E;
scope 5 {
debug e => _7;
debug e2 => _7;
let _9: &i32;
let _11: &i32;
let _12: &i32;
scope 6 {
debug x => _9;
debug x2 => _9;
}
scope 7 {
debug x => _11;
debug x21 => _11;
}
scope 8 {
debug x => _12;
debug x22 => _12;
}
}
}
scope 3 {
debug x => _5;
debug x11 => _5;
}
scope 4 {
debug x => _6;
debug x12 => _6;
}
}

16
tests/mir-opt/dataflow-const-prop/enum.statics.DataflowConstProp.64bit.diff
View File

@ -9,34 +9,34 @@
let mut _8: &&E;
let mut _10: isize;
scope 1 {
debug e => _1;
debug e1 => _1;
let _3: i32;
let _5: i32;
let _6: i32;
scope 2 {
debug x => _3;
debug x1 => _3;
let _7: &E;
scope 5 {
debug e => _7;
debug e2 => _7;
let _9: &i32;
let _11: &i32;
let _12: &i32;
scope 6 {
debug x => _9;
debug x2 => _9;
}
scope 7 {
debug x => _11;
debug x21 => _11;
}
scope 8 {
debug x => _12;
debug x22 => _12;
}
}
}
scope 3 {
debug x => _5;
debug x11 => _5;
}
scope 4 {
debug x => _6;
debug x12 => _6;
}
}