[perf experiment] Disable UninhabitedEnumBranching

[saethlin]

r? @ghost

[saethlin]

@bors try @rust-timer queue

[bors]

⌛ Trying commit 2896ab4 with merge 1e44b6aab02f601806e4733b6529ba7c57d9e4ea...

[rust-log-analyzer]

The job x86_64-gnu-llvm-14 failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

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---

---- [ui] tests/ui/async-await/future-sizes/large-arg.rs stdout ----
diff of stdout:

53 print-type-size     variant `MaybeUninit`: 1025 bytes
54 print-type-size         field `.uninit`: 0 bytes
55 print-type-size         field `.value`: 1025 bytes
- print-type-size type: `std::task::Poll<[u8; 1024]>`: 1025 bytes, alignment: 1 bytes
- print-type-size     discriminant: 1 bytes
- print-type-size     variant `Ready`: 1024 bytes
- print-type-size         field `.0`: 1024 bytes
- print-type-size     variant `Pending`: 0 bytes


The actual stdout differed from the expected stdout.
Actual stdout saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/async-await/future-sizes/large-arg/large-arg.stdout
Actual stdout saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/async-await/future-sizes/large-arg/large-arg.stdout
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args async-await/future-sizes/large-arg.rs`

error: 1 errors occurred comparing output.
status: exit status: 0
command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/async-await/future-sizes/large-arg.rs" "-Zthreads=1" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/async-await/future-sizes/large-arg" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/async-await/future-sizes/large-arg/auxiliary" "-Z" "print-type-sizes" "--crate-type=lib" "--edition=2021"
--- stdout -------------------------------
print-type-size type: `[async fn body@fake-test-src-base/async-await/future-sizes/large-arg.rs:6:21: 8:2]`: 3076 bytes, alignment: 1 bytes
print-type-size     discriminant: 1 bytes
print-type-size     variant `Unresumed`: 0 bytes
print-type-size     variant `Suspend0`: 3075 bytes
print-type-size         local `.__awaitee`: 3075 bytes
print-type-size     variant `Returned`: 0 bytes
print-type-size     variant `Panicked`: 0 bytes
print-type-size type: `[async fn body@fake-test-src-base/async-await/future-sizes/large-arg.rs:10:30: 12:2]`: 3075 bytes, alignment: 1 bytes
print-type-size     discriminant: 1 bytes
print-type-size     variant `Unresumed`: 1024 bytes
print-type-size         upvar `.t`: 1024 bytes
print-type-size     variant `Suspend0`: 3074 bytes
print-type-size         upvar `.t`: 1024 bytes
print-type-size         local `.__awaitee`: 2050 bytes
print-type-size     variant `Returned`: 1024 bytes
print-type-size         upvar `.t`: 1024 bytes
print-type-size     variant `Panicked`: 1024 bytes
print-type-size         upvar `.t`: 1024 bytes
print-type-size type: `std::mem::ManuallyDrop<[async fn body@fake-test-src-base/async-await/future-sizes/large-arg.rs:10:30: 12:2]>`: 3075 bytes, alignment: 1 bytes
print-type-size     field `.value`: 3075 bytes
print-type-size type: `std::mem::MaybeUninit<[async fn body@fake-test-src-base/async-await/future-sizes/large-arg.rs:10:30: 12:2]>`: 3075 bytes, alignment: 1 bytes
print-type-size     variant `MaybeUninit`: 3075 bytes
print-type-size         field `.uninit`: 0 bytes
print-type-size         field `.value`: 3075 bytes
print-type-size type: `[async fn body@fake-test-src-base/async-await/future-sizes/large-arg.rs:13:26: 15:2]`: 2050 bytes, alignment: 1 bytes
print-type-size     discriminant: 1 bytes
print-type-size     variant `Unresumed`: 1024 bytes
print-type-size         upvar `.t`: 1024 bytes
print-type-size     variant `Suspend0`: 2049 bytes
print-type-size         upvar `.t`: 1024 bytes
print-type-size         local `.__awaitee`: 1025 bytes
print-type-size     variant `Returned`: 1024 bytes
print-type-size         upvar `.t`: 1024 bytes
print-type-size     variant `Panicked`: 1024 bytes
print-type-size         upvar `.t`: 1024 bytes
print-type-size type: `std::mem::ManuallyDrop<[async fn body@fake-test-src-base/async-await/future-sizes/large-arg.rs:13:26: 15:2]>`: 2050 bytes, alignment: 1 bytes
print-type-size     field `.value`: 2050 bytes
print-type-size type: `std::mem::MaybeUninit<[async fn body@fake-test-src-base/async-await/future-sizes/large-arg.rs:13:26: 15:2]>`: 2050 bytes, alignment: 1 bytes
print-type-size     variant `MaybeUninit`: 2050 bytes
print-type-size         field `.uninit`: 0 bytes
print-type-size         field `.value`: 2050 bytes
print-type-size type: `[async fn body@fake-test-src-base/async-await/future-sizes/large-arg.rs:16:26: 18:2]`: 1025 bytes, alignment: 1 bytes
print-type-size     discriminant: 1 bytes
print-type-size     variant `Unresumed`: 1024 bytes
print-type-size         upvar `.t`: 1024 bytes
print-type-size     variant `Returned`: 1024 bytes
print-type-size         upvar `.t`: 1024 bytes
print-type-size     variant `Panicked`: 1024 bytes
print-type-size         upvar `.t`: 1024 bytes
print-type-size type: `std::mem::ManuallyDrop<[async fn body@fake-test-src-base/async-await/future-sizes/large-arg.rs:16:26: 18:2]>`: 1025 bytes, alignment: 1 bytes
print-type-size     field `.value`: 1025 bytes
print-type-size type: `std::mem::MaybeUninit<[async fn body@fake-test-src-base/async-await/future-sizes/large-arg.rs:16:26: 18:2]>`: 1025 bytes, alignment: 1 bytes
print-type-size     variant `MaybeUninit`: 1025 bytes
print-type-size         field `.uninit`: 0 bytes
print-type-size         field `.value`: 1025 bytes
stderr: none


---- [ui] tests/ui/async-await/future-sizes/async-awaiting-fut.rs stdout ----
---- [ui] tests/ui/async-await/future-sizes/async-awaiting-fut.rs stdout ----
diff of stdout:

61 print-type-size     variant `MaybeUninit`: 1 bytes
62 print-type-size         field `.uninit`: 0 bytes
63 print-type-size         field `.value`: 1 bytes
- print-type-size type: `std::task::Poll<()>`: 1 bytes, alignment: 1 bytes
- print-type-size     discriminant: 1 bytes
- print-type-size     variant `Ready`: 0 bytes
- print-type-size         field `.0`: 0 bytes
- print-type-size     variant `Pending`: 0 bytes


The actual stdout differed from the expected stdout.
Actual stdout saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/async-await/future-sizes/async-awaiting-fut/async-awaiting-fut.stdout
Actual stdout saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/async-await/future-sizes/async-awaiting-fut/async-awaiting-fut.stdout
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args async-await/future-sizes/async-awaiting-fut.rs`

error: 1 errors occurred comparing output.
status: exit status: 0
command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/async-await/future-sizes/async-awaiting-fut.rs" "-Zthreads=1" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/async-await/future-sizes/async-awaiting-fut" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/async-await/future-sizes/async-awaiting-fut/auxiliary" "-Z" "print-type-sizes" "--crate-type" "lib" "--edition=2021"
--- stdout -------------------------------
print-type-size type: `[async fn body@fake-test-src-base/async-await/future-sizes/async-awaiting-fut.rs:21:21: 24:2]`: 3078 bytes, alignment: 1 bytes
print-type-size     discriminant: 1 bytes
print-type-size     variant `Unresumed`: 0 bytes
print-type-size     variant `Suspend0`: 3077 bytes
print-type-size         local `.__awaitee`: 3077 bytes
print-type-size     variant `Returned`: 0 bytes
print-type-size     variant `Panicked`: 0 bytes
print-type-size type: `[async fn body@fake-test-src-base/async-await/future-sizes/async-awaiting-fut.rs:10:64: 19:2]`: 3077 bytes, alignment: 1 bytes
print-type-size     discriminant: 1 bytes
print-type-size     variant `Unresumed`: 1025 bytes
print-type-size         upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes
print-type-size     variant `Suspend0`: 2052 bytes
print-type-size         upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes
print-type-size         padding: 1 bytes
print-type-size         local `.fut`: 1025 bytes, alignment: 1 bytes
print-type-size         local `..generator_field4`: 1 bytes
print-type-size         local `.__awaitee`: 1 bytes
print-type-size     variant `Suspend1`: 3076 bytes
print-type-size         upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes
print-type-size         padding: 1026 bytes
print-type-size         local `..generator_field4`: 1 bytes, alignment: 1 bytes
print-type-size         local `.__awaitee`: 1025 bytes
print-type-size     variant `Suspend2`: 2052 bytes
print-type-size         upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes
print-type-size         padding: 1 bytes
print-type-size         local `.fut`: 1025 bytes, alignment: 1 bytes
print-type-size         local `..generator_field4`: 1 bytes
print-type-size         local `.__awaitee`: 1 bytes
print-type-size     variant `Returned`: 1025 bytes
print-type-size         upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes
print-type-size     variant `Panicked`: 1025 bytes
print-type-size         upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes
print-type-size type: `std::mem::ManuallyDrop<[async fn body@fake-test-src-base/async-await/future-sizes/async-awaiting-fut.rs:10:64: 19:2]>`: 3077 bytes, alignment: 1 bytes
print-type-size     field `.value`: 3077 bytes
print-type-size type: `std::mem::MaybeUninit<[async fn body@fake-test-src-base/async-await/future-sizes/async-awaiting-fut.rs:10:64: 19:2]>`: 3077 bytes, alignment: 1 bytes
print-type-size     variant `MaybeUninit`: 3077 bytes
print-type-size         field `.uninit`: 0 bytes
print-type-size         field `.value`: 3077 bytes
print-type-size type: `[async fn body@fake-test-src-base/async-await/future-sizes/async-awaiting-fut.rs:8:35: 8:37]`: 1025 bytes, alignment: 1 bytes
print-type-size     discriminant: 1 bytes
print-type-size     variant `Unresumed`: 1024 bytes
print-type-size         upvar `.arg`: 1024 bytes
print-type-size     variant `Returned`: 1024 bytes
print-type-size         upvar `.arg`: 1024 bytes
print-type-size     variant `Panicked`: 1024 bytes
print-type-size         upvar `.arg`: 1024 bytes
print-type-size type: `std::mem::ManuallyDrop<[async fn body@fake-test-src-base/async-await/future-sizes/async-awaiting-fut.rs:8:35: 8:37]>`: 1025 bytes, alignment: 1 bytes
print-type-size     field `.value`: 1025 bytes
print-type-size type: `std::mem::MaybeUninit<[async fn body@fake-test-src-base/async-await/future-sizes/async-awaiting-fut.rs:8:35: 8:37]>`: 1025 bytes, alignment: 1 bytes
print-type-size     variant `MaybeUninit`: 1025 bytes
print-type-size         field `.uninit`: 0 bytes
print-type-size         field `.value`: 1025 bytes
print-type-size type: `[async fn body@fake-test-src-base/async-await/future-sizes/async-awaiting-fut.rs:6:17: 6:19]`: 1 bytes, alignment: 1 bytes
print-type-size     discriminant: 1 bytes
print-type-size     variant `Unresumed`: 0 bytes
print-type-size     variant `Returned`: 0 bytes
print-type-size     variant `Panicked`: 0 bytes
print-type-size type: `std::mem::ManuallyDrop<bool>`: 1 bytes, alignment: 1 bytes
print-type-size     field `.value`: 1 bytes
print-type-size type: `std::mem::MaybeUninit<bool>`: 1 bytes, alignment: 1 bytes
print-type-size     variant `MaybeUninit`: 1 bytes
print-type-size         field `.uninit`: 0 bytes
print-type-size         field `.value`: 1 bytes
stderr: none


---- [ui] tests/ui/print_type_sizes/async.rs stdout ----
---- [ui] tests/ui/print_type_sizes/async.rs stdout ----
diff of stdout:

27 print-type-size     variant `MaybeUninit`: 1 bytes
28 print-type-size         field `.uninit`: 0 bytes
29 print-type-size         field `.value`: 1 bytes
- print-type-size type: `std::task::Poll<()>`: 1 bytes, alignment: 1 bytes
- print-type-size     discriminant: 1 bytes
- print-type-size     variant `Ready`: 0 bytes
- print-type-size         field `.0`: 0 bytes
- print-type-size     variant `Pending`: 0 bytes


The actual stdout differed from the expected stdout.
Actual stdout saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/print_type_sizes/async/async.stdout
Actual stdout saved to /checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/print_type_sizes/async/async.stdout
To update references, rerun the tests and pass the `--bless` flag
To only update this specific test, also pass `--test-args print_type_sizes/async.rs`

error: 1 errors occurred comparing output.
status: exit status: 0
command: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "/checkout/tests/ui/print_type_sizes/async.rs" "-Zthreads=1" "--sysroot" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2" "--target=x86_64-unknown-linux-gnu" "--error-format" "json" "--json" "future-incompat" "-Ccodegen-units=1" "-Zui-testing" "-Zsimulate-remapped-rust-src-base=/rustc/FAKE_PREFIX" "-Ztranslate-remapped-path-to-local-path=no" "-Zdeduplicate-diagnostics=no" "-Cstrip=debuginfo" "--remap-path-prefix=/checkout/tests/ui=fake-test-src-base" "-C" "prefer-dynamic" "--out-dir" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/print_type_sizes/async" "-A" "unused" "-Crpath" "-Cdebuginfo=0" "-Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "-L" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/ui/print_type_sizes/async/auxiliary" "-Z" "print-type-sizes" "--crate-type" "lib" "--edition=2021"
--- stdout -------------------------------
print-type-size type: `[async fn body@fake-test-src-base/print_type_sizes/async.rs:10:36: 13:2]`: 16386 bytes, alignment: 1 bytes
print-type-size     discriminant: 1 bytes
print-type-size     variant `Unresumed`: 8192 bytes
print-type-size         upvar `.arg`: 8192 bytes
print-type-size     variant `Suspend0`: 16385 bytes
print-type-size         upvar `.arg`: 8192 bytes
print-type-size         local `.arg`: 8192 bytes
print-type-size         local `.__awaitee`: 1 bytes
print-type-size     variant `Returned`: 8192 bytes
print-type-size         upvar `.arg`: 8192 bytes
print-type-size     variant `Panicked`: 8192 bytes
print-type-size         upvar `.arg`: 8192 bytes
print-type-size type: `std::mem::ManuallyDrop<[u8; 8192]>`: 8192 bytes, alignment: 1 bytes
print-type-size     field `.value`: 8192 bytes
print-type-size type: `std::mem::MaybeUninit<[u8; 8192]>`: 8192 bytes, alignment: 1 bytes
print-type-size     variant `MaybeUninit`: 8192 bytes
print-type-size         field `.uninit`: 0 bytes
print-type-size         field `.value`: 8192 bytes
print-type-size type: `[async fn body@fake-test-src-base/print_type_sizes/async.rs:8:17: 8:19]`: 1 bytes, alignment: 1 bytes
print-type-size     discriminant: 1 bytes
print-type-size     variant `Unresumed`: 0 bytes
print-type-size     variant `Returned`: 0 bytes
print-type-size     variant `Panicked`: 0 bytes
print-type-size type: `std::mem::ManuallyDrop<[async fn body@fake-test-src-base/print_type_sizes/async.rs:8:17: 8:19]>`: 1 bytes, alignment: 1 bytes
print-type-size     field `.value`: 1 bytes
print-type-size type: `std::mem::MaybeUninit<[async fn body@fake-test-src-base/print_type_sizes/async.rs:8:17: 8:19]>`: 1 bytes, alignment: 1 bytes
print-type-size     variant `MaybeUninit`: 1 bytes
print-type-size         field `.uninit`: 0 bytes
print-type-size         field `.value`: 1 bytes
stderr: none

[bors]

☀️ Try build successful - checks-actions
Build commit: 1e44b6aab02f601806e4733b6529ba7c57d9e4ea (1e44b6aab02f601806e4733b6529ba7c57d9e4ea)

[rust-timer]

Finished benchmarking commit (1e44b6aab02f601806e4733b6529ba7c57d9e4ea): comparison URL.

Overall result: no relevant changes - no action needed

Benchmarking this pull request likely means that it is perf-sensitive, so we're automatically marking it as not fit for rolling up. While you can manually mark this PR as fit for rollup, we strongly recommend not doing so since this PR may lead to changes in compiler perf.

@bors rollup=never
@rustbot label: -S-waiting-on-perf -perf-regression

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	3.8%	[3.8%, 3.8%]	1
Regressions ❌ (secondary)	3.0%	[3.0%, 3.0%]	1
Improvements ✅ (primary)	-1.3%	[-1.3%, -1.3%]	1
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	1.3%	[-1.3%, 3.8%]	2

Cycles

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	-	-	0
Regressions ❌ (secondary)	2.2%	[2.1%, 2.4%]	6
Improvements ✅ (primary)	-	-	0
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-	-	0

Binary size

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

	mean	range	count
Regressions ❌ (primary)	0.0%	[0.0%, 0.0%]	4
Regressions ❌ (secondary)	-	-	0
Improvements ✅ (primary)	-0.1%	[-0.1%, -0.1%]	3
Improvements ✅ (secondary)	-	-	0
All ❌✅ (primary)	-0.0%	[-0.1%, 0.0%]	7

Bootstrap: 642.768s -> 641.538s (-0.19%)