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Auto merge of #88176 - erikdesjardins:rezst, r=oli-obk

Browse Source 
Reenable RemoveZsts

Now that the underlying issue has been fixed by #88124, we can reland #83417.

r? `@oli-obk`
This commit is contained in:
bors 2021-08-20 16:25:34 +00:00
commit 914a1e2c51
13 changed files with 22 additions and 57 deletions
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3
compiler/rustc_mir/src/transform/remove_zsts.rs
View File

@ -9,9 +9,6 @@ pub struct RemoveZsts;
impl<'tcx> MirPass<'tcx> for RemoveZsts {
fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
if tcx.sess.mir_opt_level() < 3 {
return;
}
let param_env = tcx.param_env(body.source.def_id());
let (basic_blocks, local_decls) = body.basic_blocks_and_local_decls_mut();
for block in basic_blocks.iter_mut() {

2
src/test/incremental/hashes/trait_impls.rs
View File

@ -62,7 +62,7 @@ impl ChangeMethodBodyTrait for Foo {
#[rustc_clean(cfg="cfail2")]
#[rustc_clean(cfg="cfail3")]
impl ChangeMethodBodyTrait for Foo {
#[rustc_clean(except="hir_owner_nodes,typeck,optimized_mir", cfg="cfail2")]
#[rustc_clean(except="hir_owner_nodes,typeck", cfg="cfail2")]
#[rustc_clean(cfg="cfail3")]
fn method_name() {
()

2
src/test/mir-opt/const_prop/control_flow_simplification.hello.ConstProp.diff
View File

@ -29,7 +29,7 @@
}
bb2: {
_0 = const (); // scope 0 at $DIR/control-flow-simplification.rs:14:6: 14:6
nop; // scope 0 at $DIR/control-flow-simplification.rs:14:6: 14:6
StorageDead(_1); // scope 0 at $DIR/control-flow-simplification.rs:14:5: 14:6
return; // scope 0 at $DIR/control-flow-simplification.rs:15:2: 15:2
}

1
src/test/mir-opt/const_prop/control_flow_simplification.hello.PreCodegen.before.mir
View File

@ -4,7 +4,6 @@ fn hello() -> () {
let mut _0: (); // return place in scope 0 at $DIR/control-flow-simplification.rs:11:14: 11:14
bb0: {
_0 = const (); // scope 0 at $DIR/control-flow-simplification.rs:14:6: 14:6
return; // scope 0 at $DIR/control-flow-simplification.rs:15:2: 15:2
}
}

1
src/test/mir-opt/remove_unneeded_drops.cannot_opt_generic.RemoveUnneededDrops.diff
View File

@ -14,7 +14,6 @@
StorageLive(_2); // scope 0 at $DIR/remove_unneeded_drops.rs:21:5: 21:12
StorageLive(_3); // scope 0 at $DIR/remove_unneeded_drops.rs:21:10: 21:11
_3 = move _1; // scope 0 at $DIR/remove_unneeded_drops.rs:21:10: 21:11
nop; // scope 1 at $DIR/remove_unneeded_drops.rs:21:5: 21:12
drop(_3) -> [return: bb2, unwind: bb1]; // scope 1 at $DIR/remove_unneeded_drops.rs:21:5: 21:12
}

1
src/test/mir-opt/remove_unneeded_drops.dont_opt.RemoveUnneededDrops.diff
View File

@ -14,7 +14,6 @@
StorageLive(_2); // scope 0 at $DIR/remove_unneeded_drops.rs:9:5: 9:12
StorageLive(_3); // scope 0 at $DIR/remove_unneeded_drops.rs:9:10: 9:11
_3 = move _1; // scope 0 at $DIR/remove_unneeded_drops.rs:9:10: 9:11
nop; // scope 1 at $DIR/remove_unneeded_drops.rs:9:5: 9:12
drop(_3) -> [return: bb2, unwind: bb1]; // scope 1 at $DIR/remove_unneeded_drops.rs:9:5: 9:12
}

1
src/test/mir-opt/remove_unneeded_drops.opt.RemoveUnneededDrops.diff
View File

@ -14,7 +14,6 @@
StorageLive(_2); // scope 0 at $DIR/remove_unneeded_drops.rs:4:5: 4:12
StorageLive(_3); // scope 0 at $DIR/remove_unneeded_drops.rs:4:10: 4:11
_3 = _1; // scope 0 at $DIR/remove_unneeded_drops.rs:4:10: 4:11
- nop; // scope 1 at $DIR/remove_unneeded_drops.rs:4:5: 4:12
- drop(_3) -> bb1; // scope 1 at $DIR/remove_unneeded_drops.rs:4:5: 4:12
- }
-

1
src/test/mir-opt/remove_unneeded_drops.opt_generic_copy.RemoveUnneededDrops.diff
View File

@ -14,7 +14,6 @@
StorageLive(_2); // scope 0 at $DIR/remove_unneeded_drops.rs:14:5: 14:12
StorageLive(_3); // scope 0 at $DIR/remove_unneeded_drops.rs:14:10: 14:11
_3 = _1; // scope 0 at $DIR/remove_unneeded_drops.rs:14:10: 14:11
- nop; // scope 1 at $DIR/remove_unneeded_drops.rs:14:5: 14:12
- drop(_3) -> bb1; // scope 1 at $DIR/remove_unneeded_drops.rs:14:5: 14:12
- }
-

51
src/test/mir-opt/simplify_locals_fixedpoint.foo.SimplifyLocals.diff
View File

@ -9,8 +9,8 @@
let mut _4: isize; // in scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:22: 4:26
let mut _5: isize; // in scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:13: 4:20
let _6: u8; // in scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:18: 4:19
let mut _7: bool; // in scope 0 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:20
let mut _8: u8; // in scope 0 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:13
- let mut _7: bool; // in scope 0 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:20
- let mut _8: u8; // in scope 0 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:13
scope 1 {
debug a => _6; // in scope 1 at $DIR/simplify-locals-fixedpoint.rs:4:18: 4:19
}
@ -26,51 +26,32 @@
StorageDead(_3); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:68: 4:69
StorageDead(_2); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:68: 4:69
_5 = discriminant((_1.0: std::option::Option<u8>)); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:13: 4:20
switchInt(move _5) -> [1_isize: bb2, otherwise: bb1]; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:13: 4:20
switchInt(move _5) -> [1_isize: bb1, otherwise: bb3]; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:13: 4:20
}
bb1: {
_0 = const (); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:8:6: 8:6
goto -> bb7; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:5: 8:6
_4 = discriminant((_1.1: std::option::Option<T>)); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:22: 4:26
switchInt(move _4) -> [0_isize: bb2, otherwise: bb3]; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:22: 4:26
}
bb2: {
_4 = discriminant((_1.1: std::option::Option<T>)); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:22: 4:26
switchInt(move _4) -> [0_isize: bb3, otherwise: bb1]; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:22: 4:26
StorageLive(_6); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:18: 4:19
_6 = (((_1.0: std::option::Option<u8>) as Some).0: u8); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:18: 4:19
- StorageLive(_7); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:20
- StorageLive(_8); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:13
- _8 = _6; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:13
- _7 = Gt(move _8, const 42_u8); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:20
- StorageDead(_8); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:5:19: 5:20
- StorageDead(_7); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:7:9: 7:10
goto -> bb3; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:5: 8:6
}
bb3: {
StorageLive(_6); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:18: 4:19
_6 = (((_1.0: std::option::Option<u8>) as Some).0: u8); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:18: 4:19
StorageLive(_7); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:20
StorageLive(_8); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:13
_8 = _6; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:13
_7 = Gt(move _8, const 42_u8); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:5:12: 5:20
StorageDead(_8); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:5:19: 5:20
switchInt(move _7) -> [false: bb5, otherwise: bb4]; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:5:9: 7:10
StorageDead(_6); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:8:5: 8:6
drop(_1) -> bb4; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:9:1: 9:2
}
bb4: {
_0 = const (); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:5:21: 7:10
goto -> bb6; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:5:9: 7:10
}
bb5: {
_0 = const (); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:7:10: 7:10
goto -> bb6; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:5:9: 7:10
}
bb6: {
StorageDead(_7); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:7:9: 7:10
goto -> bb7; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:4:5: 8:6
}
bb7: {
StorageDead(_6); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:8:5: 8:6
drop(_1) -> bb8; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:9:1: 9:2
}
bb8: {
StorageDead(_1); // scope 0 at $DIR/simplify-locals-fixedpoint.rs:9:1: 9:2
return; // scope 0 at $DIR/simplify-locals-fixedpoint.rs:9:2: 9:2
}

1
src/test/run-make/const_fn_mir/dump.mir
View File

@ -12,7 +12,6 @@ fn main() -> () {
}
bb1: {
_0 = const (); // scope 0 at main.rs:8:11: 10:2
return; // scope 0 at main.rs:10:2: 10:2
}
}

1
src/test/ui/consts/const-eval/panic-assoc-never-type.rs
View File

@ -14,5 +14,4 @@ impl PrintName {
fn main() {
let _ = PrintName::VOID;
//~^ ERROR erroneous constant used
}

8
src/test/ui/consts/const-eval/panic-assoc-never-type.stderr
View File

@ -6,12 +6,6 @@ LL | const VOID: ! = panic!();
|
= note: this error originates in the macro `$crate::panic::panic_2015` (in Nightly builds, run with -Z macro-backtrace for more info)
error[E0080]: erroneous constant used
--> $DIR/panic-assoc-never-type.rs:16:13
|
LL | let _ = PrintName::VOID;
| ^^^^^^^^^^^^^^^ referenced constant has errors
error: aborting due to 2 previous errors
error: aborting due to previous error
For more information about this error, try `rustc --explain E0080`.

6
src/test/ui/recursion/issue-26548-recursion-via-normalize.stderr
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@ -1,7 +1,7 @@
error[E0391]: cycle detected when computing layout of `S`
error[E0391]: cycle detected when computing layout of `std::option::Option<S>`
|
= note: ...which requires computing layout of `std::option::Option<S>`...
= note: ...which again requires computing layout of `S`, completing the cycle
= note: ...which requires computing layout of `S`...
= note: ...which again requires computing layout of `std::option::Option<S>`, completing the cycle
note: cycle used when optimizing MIR for `main`
--> $DIR/issue-26548-recursion-via-normalize.rs:15:1
|