mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-22 14:55:26 +00:00
61 lines
1.8 KiB
Rust
61 lines
1.8 KiB
Rust
// EMIT_MIR_FOR_EACH_PANIC_STRATEGY
|
|
// Test that we correctly generate StorageDead statements for while loop
|
|
// conditions on all branches
|
|
//@ compile-flags: -Zmir-opt-level=0
|
|
|
|
fn get_bool(c: bool) -> bool {
|
|
c
|
|
}
|
|
|
|
// EMIT_MIR while_storage.while_loop.PreCodegen.after.mir
|
|
fn while_loop(c: bool) {
|
|
// CHECK-LABEL: fn while_loop(
|
|
// CHECK: bb0: {
|
|
// CHECK-NEXT: goto -> bb1;
|
|
// CHECK: bb1: {
|
|
// CHECK-NEXT: StorageLive(_3);
|
|
// CHECK-NEXT: StorageLive(_2);
|
|
// CHECK-NEXT: _2 = copy _1;
|
|
// CHECK-NEXT: _3 = get_bool(move _2) -> [return: bb2, unwind
|
|
// CHECK: bb2: {
|
|
// CHECK-NEXT: switchInt(move _3) -> [0: bb3, otherwise: bb4];
|
|
// CHECK: bb3: {
|
|
// CHECK-NEXT: StorageDead(_2);
|
|
// CHECK-NEXT: StorageLive(_9);
|
|
// CHECK-NEXT: _0 = const ();
|
|
// CHECK-NEXT: StorageDead(_9);
|
|
// CHECK-NEXT: goto -> bb8;
|
|
// CHECK: bb4: {
|
|
// CHECK-NEXT: StorageDead(_2);
|
|
// CHECK-NEXT: StorageLive(_5);
|
|
// CHECK-NEXT: StorageLive(_4);
|
|
// CHECK-NEXT: _4 = copy _1;
|
|
// CHECK-NEXT: _5 = get_bool(move _4) -> [return: bb5, unwind
|
|
// CHECK: bb5: {
|
|
// CHECK-NEXT: switchInt(move _5) -> [0: bb6, otherwise: bb7];
|
|
// CHECK: bb6: {
|
|
// CHECK-NEXT: StorageDead(_4);
|
|
// CHECK-NEXT: _6 = const ();
|
|
// CHECK-NEXT: StorageDead(_5);
|
|
// CHECK-NEXT: StorageDead(_3);
|
|
// CHECK-NEXT: goto -> bb1;
|
|
// CHECK: bb7: {
|
|
// CHECK-NEXT: StorageDead(_4);
|
|
// CHECK-NEXT: _0 = const ();
|
|
// CHECK-NEXT: StorageDead(_5);
|
|
// CHECK-NEXT: goto -> bb8;
|
|
// CHECK: bb8: {
|
|
// CHECK-NEXT: StorageDead(_3);
|
|
// CHECK-NEXT: return;
|
|
|
|
while get_bool(c) {
|
|
if get_bool(c) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
fn main() {
|
|
while_loop(false);
|
|
}
|