diff --git a/tests/mir-opt/dest-prop/branch.rs b/tests/mir-opt/dest-prop/branch.rs index 481d4130c7b59..0ac79ee4ec293 100644 --- a/tests/mir-opt/dest-prop/branch.rs +++ b/tests/mir-opt/dest-prop/branch.rs @@ -1,4 +1,3 @@ -// skip-filecheck // EMIT_MIR_FOR_EACH_PANIC_STRATEGY //! Tests that assignment in both branches of an `if` are eliminated. //@ test-mir-pass: DestinationPropagation @@ -12,6 +11,10 @@ fn cond() -> bool { // EMIT_MIR branch.foo.DestinationPropagation.diff fn foo() -> i32 { + // CHECK-LABEL: fn foo( + // CHECK: debug y => [[y:_.*]]; + // CHECK: [[y]] = val() + // CHECK-NOT: [[y]] = {{_.*}}; let x = val(); let y = if cond() { diff --git a/tests/mir-opt/dest-prop/copy_propagation_arg.rs b/tests/mir-opt/dest-prop/copy_propagation_arg.rs index db4969924ffb9..084bd0544c175 100644 --- a/tests/mir-opt/dest-prop/copy_propagation_arg.rs +++ b/tests/mir-opt/dest-prop/copy_propagation_arg.rs @@ -1,4 +1,3 @@ -// skip-filecheck // EMIT_MIR_FOR_EACH_PANIC_STRATEGY // Check that DestinationPropagation does not propagate an assignment to a function argument // (doing so can break usages of the original argument value) @@ -9,18 +8,29 @@ fn dummy(x: u8) -> u8 { // EMIT_MIR copy_propagation_arg.foo.DestinationPropagation.diff fn foo(mut x: u8) { + // CHECK-LABEL: fn foo( + // CHECK: debug x => [[x:_.*]]; + // CHECK: dummy(move [[x]]) + // CHECK: [[x]] = move {{_.*}}; // calling `dummy` to make a use of `x` that copyprop cannot eliminate x = dummy(x); // this will assign a local to `x` } // EMIT_MIR copy_propagation_arg.bar.DestinationPropagation.diff fn bar(mut x: u8) { + // CHECK-LABEL: fn bar( + // CHECK: debug x => [[x:_.*]]; + // CHECK: dummy(move [[x]]) + // CHECK: [[x]] = const 5_u8; dummy(x); x = 5; } // EMIT_MIR copy_propagation_arg.baz.DestinationPropagation.diff fn baz(mut x: i32) -> i32 { + // CHECK-LABEL: fn baz( + // CHECK: debug x => [[x:_.*]]; + // CHECK-NOT: [[x]] = // self-assignment to a function argument should be eliminated x = x; x @@ -28,6 +38,12 @@ fn baz(mut x: i32) -> i32 { // EMIT_MIR copy_propagation_arg.arg_src.DestinationPropagation.diff fn arg_src(mut x: i32) -> i32 { + // CHECK-LABEL: fn arg_src( + // CHECK: debug x => [[x:_.*]]; + // CHECK: debug y => [[y:_.*]]; + // CHECK: [[y]] = [[x]] + // CHECK: [[x]] = const 123_i32; + // CHECK-NOT: {{_.*}} = [[y]]; let y = x; x = 123; // Don't propagate this assignment to `y` y diff --git a/tests/mir-opt/dest-prop/cycle.rs b/tests/mir-opt/dest-prop/cycle.rs index e414daf20f2dd..86b9b713fd001 100644 --- a/tests/mir-opt/dest-prop/cycle.rs +++ b/tests/mir-opt/dest-prop/cycle.rs @@ -1,4 +1,3 @@ -// skip-filecheck // EMIT_MIR_FOR_EACH_PANIC_STRATEGY //! Tests that cyclic assignments don't hang DestinationPropagation, and result in reasonable code. //@ test-mir-pass: DestinationPropagation @@ -8,6 +7,10 @@ fn val() -> i32 { // EMIT_MIR cycle.main.DestinationPropagation.diff fn main() { + // CHECK-LABEL: main( + // CHECK: debug x => [[x:_.*]]; + // CHECK: [[x]] = val() + // CHECK-NOT: [[x]] = {{_.*}}; let mut x = val(); let y = x; let z = y; diff --git a/tests/mir-opt/dest-prop/dead_stores_79191.rs b/tests/mir-opt/dest-prop/dead_stores_79191.rs index 5c218a328f584..61060e4f8506b 100644 --- a/tests/mir-opt/dest-prop/dead_stores_79191.rs +++ b/tests/mir-opt/dest-prop/dead_stores_79191.rs @@ -1,4 +1,3 @@ -// skip-filecheck // EMIT_MIR_FOR_EACH_PANIC_STRATEGY //@ test-mir-pass: DestinationPropagation @@ -8,6 +7,13 @@ fn id(x: T) -> T { // EMIT_MIR dead_stores_79191.f.DestinationPropagation.after.mir fn f(mut a: usize) -> usize { + // CHECK-LABEL: fn f( + // CHECK: debug a => [[a:_.*]]; + // CHECK: debug b => [[b:_.*]]; + // CHECK: [[b]] = [[a]]; + // CHECK: [[a]] = const 5_usize; + // CHECK: [[a]] = move [[b]]; + // CHECK: id::(move [[a]]) let b = a; a = 5; a = b; diff --git a/tests/mir-opt/dest-prop/dead_stores_better.rs b/tests/mir-opt/dest-prop/dead_stores_better.rs index 06445dc87031e..d2b9fe0571234 100644 --- a/tests/mir-opt/dest-prop/dead_stores_better.rs +++ b/tests/mir-opt/dest-prop/dead_stores_better.rs @@ -1,4 +1,3 @@ -// skip-filecheck // EMIT_MIR_FOR_EACH_PANIC_STRATEGY // This is a copy of the `dead_stores_79191` test, except that we turn on DSE. This demonstrates // that that pass enables this one to do more optimizations. @@ -12,6 +11,13 @@ fn id(x: T) -> T { // EMIT_MIR dead_stores_better.f.DestinationPropagation.after.mir pub fn f(mut a: usize) -> usize { + // CHECK-LABEL: fn f( + // CHECK: debug a => [[a:_.*]]; + // CHECK: debug b => [[b:_.*]]; + // CHECK: [[b]] = [[a]]; + // CHECK: [[a]] = const 5_usize; + // CHECK: [[a]] = move [[b]]; + // CHECK: id::(move [[a]]) let b = a; a = 5; a = b; diff --git a/tests/mir-opt/dest-prop/simple.rs b/tests/mir-opt/dest-prop/simple.rs index 8e5d6340e566f..833d49b8c4665 100644 --- a/tests/mir-opt/dest-prop/simple.rs +++ b/tests/mir-opt/dest-prop/simple.rs @@ -1,9 +1,15 @@ -// skip-filecheck // EMIT_MIR_FOR_EACH_PANIC_STRATEGY //! Copy of `nrvo-simple.rs`, to ensure that full dest-prop handles it too. //@ test-mir-pass: DestinationPropagation // EMIT_MIR simple.nrvo.DestinationPropagation.diff fn nrvo(init: fn(&mut [u8; 1024])) -> [u8; 1024] { + // CHECK-LABEL: fn nrvo( + // CHECK: debug init => [[init:_.*]]; + // CHECK: debug buf => [[buf:_.*]]; + // CHECK: [[buf]] = [const 0_u8; 1024]; + // CHECK-NOT: {{_.*}} = [[init]]; + // CHECK: move [[init]](move {{_.*}}) + // CHECK: {{_.*}} = [[buf]] let mut buf = [0; 1024]; init(&mut buf); buf diff --git a/tests/mir-opt/dest-prop/union.rs b/tests/mir-opt/dest-prop/union.rs index 66fadd8471225..4e6fb71bf75ec 100644 --- a/tests/mir-opt/dest-prop/union.rs +++ b/tests/mir-opt/dest-prop/union.rs @@ -8,6 +8,8 @@ fn val() -> u32 { // EMIT_MIR union.main.DestinationPropagation.diff fn main() { + // CHECK-LABEL: fn args( + // CHECK: {{_.*}} = Un { us: const 1_u32 }; union Un { us: u32, }