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kadmin 2020-08-13 07:55:58 +00:00
parent 9ef5b884b2
commit 46e5699af9
3 changed files with 91 additions and 22 deletions
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66
src/test/mir-opt/matches_reduce_branches.foo.MatchBranchSimplification.diff.32bit Normal file
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@ -0,0 +1,66 @@
- // MIR for `foo` before MatchBranchSimplification
+ // MIR for `foo` after MatchBranchSimplification
fn foo(_1: std::option::Option<()>) -> () {
debug bar => _1; // in scope 0 at $DIR/matches_reduce_branches.rs:4:8: 4:11
let mut _0: (); // return place in scope 0 at $DIR/matches_reduce_branches.rs:4:25: 4:25
let mut _2: bool; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let mut _3: isize; // in scope 0 at $DIR/matches_reduce_branches.rs:5:22: 5:26
bb0: {
StorageLive(_2); // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
_3 = discriminant(_1); // scope 0 at $DIR/matches_reduce_branches.rs:5:22: 5:26
- switchInt(move _3) -> [0_isize: bb2, otherwise: bb1]; // scope 0 at $DIR/matches_reduce_branches.rs:5:22: 5:26
+ _2 = Eq(move _3, const 0_isize); // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
+ // ty::Const
+ // + ty: isize
+ // + val: Value(Scalar(0x00000000))
+ // mir::Constant
+ // + span: $DIR/matches_reduce_branches.rs:1:1: 1:1
+ // + literal: Const { ty: isize, val: Value(Scalar(0x00000000)) }
+ goto -> bb3; // scope 0 at $DIR/matches_reduce_branches.rs:5:22: 5:26
}
bb1: {
_2 = const false; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
// ty::Const
// + ty: bool
// + val: Value(Scalar(0x00))
// mir::Constant
// + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL
// + literal: Const { ty: bool, val: Value(Scalar(0x00)) }
goto -> bb3; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
}
bb2: {
_2 = const true; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
// ty::Const
// + ty: bool
// + val: Value(Scalar(0x01))
// mir::Constant
// + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL
// + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
goto -> bb3; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
}
bb3: {
switchInt(_2) -> [false: bb4, otherwise: bb5]; // scope 0 at $DIR/matches_reduce_branches.rs:5:5: 7:6
}
bb4: {
_0 = const (); // scope 0 at $DIR/matches_reduce_branches.rs:5:5: 7:6
// ty::Const
// + ty: ()
// + val: Value(Scalar(<ZST>))
// mir::Constant
// + span: $DIR/matches_reduce_branches.rs:5:5: 7:6
// + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
goto -> bb5; // scope 0 at $DIR/matches_reduce_branches.rs:5:5: 7:6
}
bb5: {
StorageDead(_2); // scope 0 at $DIR/matches_reduce_branches.rs:8:1: 8:2
return; // scope 0 at $DIR/matches_reduce_branches.rs:8:2: 8:2
}
}

46
src/test/mir-opt/matches_reduce_branches.foo.MatchBranchSimplification.diff → src/test/mir-opt/matches_reduce_branches.foo.MatchBranchSimplification.diff.64bit
View File

@ -2,16 +2,23 @@
+ // MIR for `foo` after MatchBranchSimplification
fn foo(_1: std::option::Option<()>) -> () {
debug bar => _1; // in scope 0 at $DIR/matches_reduce_branches.rs:3:8: 3:11
let mut _0: (); // return place in scope 0 at $DIR/matches_reduce_branches.rs:3:25: 3:25
debug bar => _1; // in scope 0 at $DIR/matches_reduce_branches.rs:4:8: 4:11
let mut _0: (); // return place in scope 0 at $DIR/matches_reduce_branches.rs:4:25: 4:25
let mut _2: bool; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
let mut _3: isize; // in scope 0 at $DIR/matches_reduce_branches.rs:4:22: 4:26
let mut _3: isize; // in scope 0 at $DIR/matches_reduce_branches.rs:5:22: 5:26
bb0: {
StorageLive(_2); // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
_3 = discriminant(_1); // scope 0 at $DIR/matches_reduce_branches.rs:4:22: 4:26
- switchInt(move _3) -> [0_isize: bb2, otherwise: bb1]; // scope 0 at $DIR/matches_reduce_branches.rs:4:22: 4:26
+ goto -> bb2; // scope 0 at $DIR/matches_reduce_branches.rs:4:22: 4:26
_3 = discriminant(_1); // scope 0 at $DIR/matches_reduce_branches.rs:5:22: 5:26
- switchInt(move _3) -> [0_isize: bb2, otherwise: bb1]; // scope 0 at $DIR/matches_reduce_branches.rs:5:22: 5:26
+ _2 = Eq(move _3, const 0_isize); // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
+ // ty::Const
+ // + ty: isize
+ // + val: Value(Scalar(0x0000000000000000))
+ // mir::Constant
+ // + span: $DIR/matches_reduce_branches.rs:1:1: 1:1
+ // + literal: Const { ty: isize, val: Value(Scalar(0x0000000000000000)) }
+ goto -> bb3; // scope 0 at $DIR/matches_reduce_branches.rs:5:22: 5:26
}
bb1: {
@ -26,39 +33,34 @@
}
bb2: {
- _2 = const true; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
+ _2 = Eq(move _3, const 0_isize); // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
_2 = const true; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
// ty::Const
- // + ty: bool
- // + val: Value(Scalar(0x01))
+ // + ty: isize
+ // + val: Value(Scalar(0x0000000000000000))
// + ty: bool
// + val: Value(Scalar(0x01))
// mir::Constant
- // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL
- // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
+ // + span: $DIR/matches_reduce_branches.rs:1:1: 1:1
+ // + literal: Const { ty: isize, val: Value(Scalar(0x0000000000000000)) }
// + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL
// + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
goto -> bb3; // scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL
}
bb3: {
switchInt(_2) -> [false: bb4, otherwise: bb5]; // scope 0 at $DIR/matches_reduce_branches.rs:4:5: 6:6
switchInt(_2) -> [false: bb4, otherwise: bb5]; // scope 0 at $DIR/matches_reduce_branches.rs:5:5: 7:6
}
bb4: {
_0 = const (); // scope 0 at $DIR/matches_reduce_branches.rs:4:5: 6:6
_0 = const (); // scope 0 at $DIR/matches_reduce_branches.rs:5:5: 7:6
// ty::Const
// + ty: ()
// + val: Value(Scalar(<ZST>))
// mir::Constant
// + span: $DIR/matches_reduce_branches.rs:4:5: 6:6
// + span: $DIR/matches_reduce_branches.rs:5:5: 7:6
// + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
goto -> bb5; // scope 0 at $DIR/matches_reduce_branches.rs:4:5: 6:6
goto -> bb5; // scope 0 at $DIR/matches_reduce_branches.rs:5:5: 7:6
}
bb5: {
StorageDead(_2); // scope 0 at $DIR/matches_reduce_branches.rs:7:1: 7:2
return; // scope 0 at $DIR/matches_reduce_branches.rs:7:2: 7:2
StorageDead(_2); // scope 0 at $DIR/matches_reduce_branches.rs:8:1: 8:2
return; // scope 0 at $DIR/matches_reduce_branches.rs:8:2: 8:2
}
}

1
src/test/mir-opt/matches_reduce_branches.rs
View File

@ -1,3 +1,4 @@
// EMIT_MIR_FOR_EACH_BIT_WIDTH
// EMIT_MIR matches_reduce_branches.foo.MatchBranchSimplification.diff
fn foo(bar: Option<()>) {