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-rw-r--r--tests/mir-opt/dest-prop/branch.foo.DestinationPropagation.diff (renamed from src/test/mir-opt/dest-prop/branch.foo.DestinationPropagation.diff)2
-rw-r--r--tests/mir-opt/dest-prop/branch.rs (renamed from src/test/mir-opt/dest-prop/branch.rs)0
-rw-r--r--tests/mir-opt/dest-prop/copy_propagation_arg.arg_src.DestinationPropagation.diff (renamed from src/test/mir-opt/dest-prop/copy_propagation_arg.arg_src.DestinationPropagation.diff)0
-rw-r--r--tests/mir-opt/dest-prop/copy_propagation_arg.bar.DestinationPropagation.diff (renamed from src/test/mir-opt/dest-prop/copy_propagation_arg.bar.DestinationPropagation.diff)0
-rw-r--r--tests/mir-opt/dest-prop/copy_propagation_arg.baz.DestinationPropagation.diff (renamed from src/test/mir-opt/dest-prop/copy_propagation_arg.baz.DestinationPropagation.diff)0
-rw-r--r--tests/mir-opt/dest-prop/copy_propagation_arg.foo.DestinationPropagation.diff (renamed from src/test/mir-opt/dest-prop/copy_propagation_arg.foo.DestinationPropagation.diff)0
-rw-r--r--tests/mir-opt/dest-prop/copy_propagation_arg.rs (renamed from src/test/mir-opt/dest-prop/copy_propagation_arg.rs)0
-rw-r--r--tests/mir-opt/dest-prop/cycle.main.DestinationPropagation.diff (renamed from src/test/mir-opt/dest-prop/cycle.main.DestinationPropagation.diff)0
-rw-r--r--tests/mir-opt/dest-prop/cycle.rs (renamed from src/test/mir-opt/dest-prop/cycle.rs)0
-rw-r--r--tests/mir-opt/dest-prop/dead_stores_79191.f.DestinationPropagation.after.mir (renamed from src/test/mir-opt/dest-prop/dead_stores_79191.f.DestinationPropagation.after.mir)0
-rw-r--r--tests/mir-opt/dest-prop/dead_stores_79191.rs (renamed from src/test/mir-opt/dest-prop/dead_stores_79191.rs)0
-rw-r--r--tests/mir-opt/dest-prop/dead_stores_better.f.DestinationPropagation.after.mir (renamed from src/test/mir-opt/dest-prop/dead_stores_better.f.DestinationPropagation.after.mir)1
-rw-r--r--tests/mir-opt/dest-prop/dead_stores_better.rs (renamed from src/test/mir-opt/dest-prop/dead_stores_better.rs)0
-rw-r--r--tests/mir-opt/dest-prop/simple.nrvo.DestinationPropagation.diff (renamed from src/test/mir-opt/dest-prop/simple.nrvo.DestinationPropagation.diff)0
-rw-r--r--tests/mir-opt/dest-prop/simple.rs (renamed from src/test/mir-opt/dest-prop/simple.rs)0
-rw-r--r--tests/mir-opt/dest-prop/union.main.DestinationPropagation.diff (renamed from src/test/mir-opt/dest-prop/union.main.DestinationPropagation.diff)3
-rw-r--r--tests/mir-opt/dest-prop/union.rs (renamed from src/test/mir-opt/dest-prop/union.rs)0
-rw-r--r--tests/mir-opt/dest-prop/unreachable.f.DestinationPropagation.diff86
-rw-r--r--tests/mir-opt/dest-prop/unreachable.rs18
19 files changed, 105 insertions, 5 deletions
diff --git a/src/test/mir-opt/dest-prop/branch.foo.DestinationPropagation.diff b/tests/mir-opt/dest-prop/branch.foo.DestinationPropagation.diff
index 5fa7013d5..9c7296632 100644
--- a/src/test/mir-opt/dest-prop/branch.foo.DestinationPropagation.diff
+++ b/tests/mir-opt/dest-prop/branch.foo.DestinationPropagation.diff
@@ -37,7 +37,7 @@
}
bb2: {
- switchInt(move _3) -> [false: bb4, otherwise: bb3]; // scope 1 at $DIR/branch.rs:+3:16: +3:22
+ switchInt(move _3) -> [0: bb4, otherwise: bb3]; // scope 1 at $DIR/branch.rs:+3:16: +3:22
}
bb3: {
diff --git a/src/test/mir-opt/dest-prop/branch.rs b/tests/mir-opt/dest-prop/branch.rs
index 898c908b1..898c908b1 100644
--- a/src/test/mir-opt/dest-prop/branch.rs
+++ b/tests/mir-opt/dest-prop/branch.rs
diff --git a/src/test/mir-opt/dest-prop/copy_propagation_arg.arg_src.DestinationPropagation.diff b/tests/mir-opt/dest-prop/copy_propagation_arg.arg_src.DestinationPropagation.diff
index 4343a5935..4343a5935 100644
--- a/src/test/mir-opt/dest-prop/copy_propagation_arg.arg_src.DestinationPropagation.diff
+++ b/tests/mir-opt/dest-prop/copy_propagation_arg.arg_src.DestinationPropagation.diff
diff --git a/src/test/mir-opt/dest-prop/copy_propagation_arg.bar.DestinationPropagation.diff b/tests/mir-opt/dest-prop/copy_propagation_arg.bar.DestinationPropagation.diff
index 298991b5a..298991b5a 100644
--- a/src/test/mir-opt/dest-prop/copy_propagation_arg.bar.DestinationPropagation.diff
+++ b/tests/mir-opt/dest-prop/copy_propagation_arg.bar.DestinationPropagation.diff
diff --git a/src/test/mir-opt/dest-prop/copy_propagation_arg.baz.DestinationPropagation.diff b/tests/mir-opt/dest-prop/copy_propagation_arg.baz.DestinationPropagation.diff
index bc88787e6..bc88787e6 100644
--- a/src/test/mir-opt/dest-prop/copy_propagation_arg.baz.DestinationPropagation.diff
+++ b/tests/mir-opt/dest-prop/copy_propagation_arg.baz.DestinationPropagation.diff
diff --git a/src/test/mir-opt/dest-prop/copy_propagation_arg.foo.DestinationPropagation.diff b/tests/mir-opt/dest-prop/copy_propagation_arg.foo.DestinationPropagation.diff
index d37a9f71d..d37a9f71d 100644
--- a/src/test/mir-opt/dest-prop/copy_propagation_arg.foo.DestinationPropagation.diff
+++ b/tests/mir-opt/dest-prop/copy_propagation_arg.foo.DestinationPropagation.diff
diff --git a/src/test/mir-opt/dest-prop/copy_propagation_arg.rs b/tests/mir-opt/dest-prop/copy_propagation_arg.rs
index 31be6c931..31be6c931 100644
--- a/src/test/mir-opt/dest-prop/copy_propagation_arg.rs
+++ b/tests/mir-opt/dest-prop/copy_propagation_arg.rs
diff --git a/src/test/mir-opt/dest-prop/cycle.main.DestinationPropagation.diff b/tests/mir-opt/dest-prop/cycle.main.DestinationPropagation.diff
index cfc203c5f..cfc203c5f 100644
--- a/src/test/mir-opt/dest-prop/cycle.main.DestinationPropagation.diff
+++ b/tests/mir-opt/dest-prop/cycle.main.DestinationPropagation.diff
diff --git a/src/test/mir-opt/dest-prop/cycle.rs b/tests/mir-opt/dest-prop/cycle.rs
index 6182878f3..6182878f3 100644
--- a/src/test/mir-opt/dest-prop/cycle.rs
+++ b/tests/mir-opt/dest-prop/cycle.rs
diff --git a/src/test/mir-opt/dest-prop/dead_stores_79191.f.DestinationPropagation.after.mir b/tests/mir-opt/dest-prop/dead_stores_79191.f.DestinationPropagation.after.mir
index 63cac133b..63cac133b 100644
--- a/src/test/mir-opt/dest-prop/dead_stores_79191.f.DestinationPropagation.after.mir
+++ b/tests/mir-opt/dest-prop/dead_stores_79191.f.DestinationPropagation.after.mir
diff --git a/src/test/mir-opt/dest-prop/dead_stores_79191.rs b/tests/mir-opt/dest-prop/dead_stores_79191.rs
index 43e0bf664..43e0bf664 100644
--- a/src/test/mir-opt/dest-prop/dead_stores_79191.rs
+++ b/tests/mir-opt/dest-prop/dead_stores_79191.rs
diff --git a/src/test/mir-opt/dest-prop/dead_stores_better.f.DestinationPropagation.after.mir b/tests/mir-opt/dest-prop/dead_stores_better.f.DestinationPropagation.after.mir
index ba7f76d28..26068931a 100644
--- a/src/test/mir-opt/dest-prop/dead_stores_better.f.DestinationPropagation.after.mir
+++ b/tests/mir-opt/dest-prop/dead_stores_better.f.DestinationPropagation.after.mir
@@ -13,7 +13,6 @@ fn f(_1: usize) -> usize {
bb0: {
nop; // scope 0 at $DIR/dead_stores_better.rs:+1:9: +1:10
nop; // scope 0 at $DIR/dead_stores_better.rs:+1:13: +1:14
- nop; // scope 1 at $DIR/dead_stores_better.rs:+2:5: +2:10
nop; // scope 1 at $DIR/dead_stores_better.rs:+3:9: +3:10
nop; // scope 1 at $DIR/dead_stores_better.rs:+3:9: +3:10
nop; // scope 1 at $DIR/dead_stores_better.rs:+3:5: +3:10
diff --git a/src/test/mir-opt/dest-prop/dead_stores_better.rs b/tests/mir-opt/dest-prop/dead_stores_better.rs
index 003ad57d8..003ad57d8 100644
--- a/src/test/mir-opt/dest-prop/dead_stores_better.rs
+++ b/tests/mir-opt/dest-prop/dead_stores_better.rs
diff --git a/src/test/mir-opt/dest-prop/simple.nrvo.DestinationPropagation.diff b/tests/mir-opt/dest-prop/simple.nrvo.DestinationPropagation.diff
index c2a3a0025..c2a3a0025 100644
--- a/src/test/mir-opt/dest-prop/simple.nrvo.DestinationPropagation.diff
+++ b/tests/mir-opt/dest-prop/simple.nrvo.DestinationPropagation.diff
diff --git a/src/test/mir-opt/dest-prop/simple.rs b/tests/mir-opt/dest-prop/simple.rs
index d4c27228f..d4c27228f 100644
--- a/src/test/mir-opt/dest-prop/simple.rs
+++ b/tests/mir-opt/dest-prop/simple.rs
diff --git a/src/test/mir-opt/dest-prop/union.main.DestinationPropagation.diff b/tests/mir-opt/dest-prop/union.main.DestinationPropagation.diff
index 85d994bc8..fbed31788 100644
--- a/src/test/mir-opt/dest-prop/union.main.DestinationPropagation.diff
+++ b/tests/mir-opt/dest-prop/union.main.DestinationPropagation.diff
@@ -25,11 +25,8 @@
}
bb1: {
- nop; // scope 0 at $DIR/union.rs:+5:14: +5:30
- nop; // scope 0 at $DIR/union.rs:+5:14: +5:30
StorageDead(_2); // scope 0 at $DIR/union.rs:+5:29: +5:30
StorageLive(_3); // scope 1 at $DIR/union.rs:+7:10: +7:26
- nop; // scope 2 at $DIR/union.rs:+7:19: +7:24
StorageDead(_3); // scope 1 at $DIR/union.rs:+7:26: +7:27
StorageDead(_1); // scope 0 at $DIR/union.rs:+8:1: +8:2
return; // scope 0 at $DIR/union.rs:+8:2: +8:2
diff --git a/src/test/mir-opt/dest-prop/union.rs b/tests/mir-opt/dest-prop/union.rs
index eb6cb09fc..eb6cb09fc 100644
--- a/src/test/mir-opt/dest-prop/union.rs
+++ b/tests/mir-opt/dest-prop/union.rs
diff --git a/tests/mir-opt/dest-prop/unreachable.f.DestinationPropagation.diff b/tests/mir-opt/dest-prop/unreachable.f.DestinationPropagation.diff
new file mode 100644
index 000000000..9ea756c27
--- /dev/null
+++ b/tests/mir-opt/dest-prop/unreachable.f.DestinationPropagation.diff
@@ -0,0 +1,86 @@
+- // MIR for `f` before DestinationPropagation
++ // MIR for `f` after DestinationPropagation
+
+ fn f(_1: T) -> () {
+ debug a => _1; // in scope 0 at $DIR/unreachable.rs:+0:19: +0:20
+ let mut _0: (); // return place in scope 0 at $DIR/unreachable.rs:+0:25: +0:25
+ let _2: T; // in scope 0 at $DIR/unreachable.rs:+1:9: +1:10
+ let mut _3: bool; // in scope 0 at $DIR/unreachable.rs:+2:8: +2:13
+ let _4: (); // in scope 0 at $DIR/unreachable.rs:+3:9: +3:16
+ let mut _5: T; // in scope 0 at $DIR/unreachable.rs:+3:11: +3:12
+ let mut _6: T; // in scope 0 at $DIR/unreachable.rs:+3:14: +3:15
+ let _7: (); // in scope 0 at $DIR/unreachable.rs:+5:9: +5:16
+ let mut _8: T; // in scope 0 at $DIR/unreachable.rs:+5:11: +5:12
+ let mut _9: T; // in scope 0 at $DIR/unreachable.rs:+5:14: +5:15
+ scope 1 {
+- debug b => _2; // in scope 1 at $DIR/unreachable.rs:+1:9: +1:10
++ debug b => _1; // in scope 1 at $DIR/unreachable.rs:+1:9: +1:10
+ }
+
+ bb0: {
+- StorageLive(_2); // scope 0 at $DIR/unreachable.rs:+1:9: +1:10
+- _2 = _1; // scope 0 at $DIR/unreachable.rs:+1:13: +1:14
++ nop; // scope 0 at $DIR/unreachable.rs:+1:9: +1:10
++ nop; // scope 0 at $DIR/unreachable.rs:+1:13: +1:14
+ StorageLive(_3); // scope 1 at $DIR/unreachable.rs:+2:8: +2:13
+ _3 = const false; // scope 1 at $DIR/unreachable.rs:+2:8: +2:13
+- goto -> bb3; // scope 1 at $DIR/unreachable.rs:+2:8: +2:13
++ goto -> bb1; // scope 1 at $DIR/unreachable.rs:+2:8: +2:13
+ }
+
+ bb1: {
+- StorageLive(_4); // scope 1 at $DIR/unreachable.rs:+3:9: +3:16
+- StorageLive(_5); // scope 1 at $DIR/unreachable.rs:+3:11: +3:12
+- _5 = _1; // scope 1 at $DIR/unreachable.rs:+3:11: +3:12
+- StorageLive(_6); // scope 1 at $DIR/unreachable.rs:+3:14: +3:15
+- _6 = _2; // scope 1 at $DIR/unreachable.rs:+3:14: +3:15
+- _4 = g::<T>(move _5, move _6) -> bb2; // scope 1 at $DIR/unreachable.rs:+3:9: +3:16
+- // mir::Constant
+- // + span: $DIR/unreachable.rs:11:9: 11:10
+- // + literal: Const { ty: fn(T, T) {g::<T>}, val: Value(<ZST>) }
+- }
+-
+- bb2: {
+- StorageDead(_6); // scope 1 at $DIR/unreachable.rs:+3:15: +3:16
+- StorageDead(_5); // scope 1 at $DIR/unreachable.rs:+3:15: +3:16
+- StorageDead(_4); // scope 1 at $DIR/unreachable.rs:+3:16: +3:17
+- _0 = const (); // scope 1 at $DIR/unreachable.rs:+2:14: +4:6
+- goto -> bb5; // scope 1 at $DIR/unreachable.rs:+2:5: +6:6
+- }
+-
+- bb3: {
+ StorageLive(_7); // scope 1 at $DIR/unreachable.rs:+5:9: +5:16
+- StorageLive(_8); // scope 1 at $DIR/unreachable.rs:+5:11: +5:12
+- _8 = _2; // scope 1 at $DIR/unreachable.rs:+5:11: +5:12
++ nop; // scope 1 at $DIR/unreachable.rs:+5:11: +5:12
++ nop; // scope 1 at $DIR/unreachable.rs:+5:11: +5:12
+ StorageLive(_9); // scope 1 at $DIR/unreachable.rs:+5:14: +5:15
+- _9 = _2; // scope 1 at $DIR/unreachable.rs:+5:14: +5:15
+- _7 = g::<T>(move _8, move _9) -> bb4; // scope 1 at $DIR/unreachable.rs:+5:9: +5:16
++ _9 = _1; // scope 1 at $DIR/unreachable.rs:+5:14: +5:15
++ _7 = g::<T>(move _1, move _9) -> bb2; // scope 1 at $DIR/unreachable.rs:+5:9: +5:16
+ // mir::Constant
+ // + span: $DIR/unreachable.rs:13:9: 13:10
+ // + literal: Const { ty: fn(T, T) {g::<T>}, val: Value(<ZST>) }
+ }
+
+- bb4: {
++ bb2: {
+ StorageDead(_9); // scope 1 at $DIR/unreachable.rs:+5:15: +5:16
+- StorageDead(_8); // scope 1 at $DIR/unreachable.rs:+5:15: +5:16
++ nop; // scope 1 at $DIR/unreachable.rs:+5:15: +5:16
+ StorageDead(_7); // scope 1 at $DIR/unreachable.rs:+5:16: +5:17
+ _0 = const (); // scope 1 at $DIR/unreachable.rs:+4:12: +6:6
+- goto -> bb5; // scope 1 at $DIR/unreachable.rs:+2:5: +6:6
++ goto -> bb3; // scope 1 at $DIR/unreachable.rs:+2:5: +6:6
+ }
+
+- bb5: {
++ bb3: {
+ StorageDead(_3); // scope 1 at $DIR/unreachable.rs:+6:5: +6:6
+- StorageDead(_2); // scope 0 at $DIR/unreachable.rs:+7:1: +7:2
++ nop; // scope 0 at $DIR/unreachable.rs:+7:1: +7:2
+ return; // scope 0 at $DIR/unreachable.rs:+7:2: +7:2
+ }
+ }
+
diff --git a/tests/mir-opt/dest-prop/unreachable.rs b/tests/mir-opt/dest-prop/unreachable.rs
new file mode 100644
index 000000000..32b5def98
--- /dev/null
+++ b/tests/mir-opt/dest-prop/unreachable.rs
@@ -0,0 +1,18 @@
+// Check that unreachable code is removed after the destination propagation.
+// Regression test for issue #105428.
+//
+// compile-flags: --crate-type=lib -Zmir-opt-level=0
+// compile-flags: -Zmir-enable-passes=+ConstProp,+SimplifyConstCondition-after-const-prop,+DestinationPropagation
+
+// EMIT_MIR unreachable.f.DestinationPropagation.diff
+pub fn f<T: Copy>(a: T) {
+ let b = a;
+ if false {
+ g(a, b);
+ } else {
+ g(b, b);
+ }
+}
+
+#[inline(never)]
+pub fn g<T: Copy>(_: T, _: T) {}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-03 14:07:12 +0000