bors a0485c5a90 Auto merge of #1686 - thomcc:cmpxchg_weak, r=oli-obk ...

Add random failures to compare_exchange_weak

In practice this is pretty useful for detecting bugs.

This fails more frequently than realistic (~~50%~~ (now 80%, controlled by a flag) of the time). I couldn't find any existing code that tries to model this (tsan, cdschecker, etc all seem to have TODOs there). Relacy models it with a 25% or 50% failure chance depending on some settings.

CC `@JCTyblaidd` who wrote the code this modifies initially, and seems interested in this subject.

2021-01-28 09:52:04 +00:00

..

concurrency

rustup; more slack for timing tests

2021-01-27 10:44:08 +01:00

panic

Apply review changes, incrementing the clocks twice is an unnecessary hold-over from earlier versions so fixed.

2020-11-27 19:26:06 +00:00

stacked-borrows

enable track-raw-ptr tests on Windows

2020-12-11 11:28:33 +01:00

align_offset_symbolic.rs

use real align_offset unless we symbolic alignment check is enabled

2020-08-16 18:26:04 +02:00

align_offset_symbolic.stdout

use real align_offset unless we symbolic alignment check is enabled

2020-08-16 18:26:04 +02:00

align.rs

use real align_offset unless we symbolic alignment check is enabled

2020-08-16 18:26:04 +02:00

args.rs

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args.stdout

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arrays.rs

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arrays.stdout

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associated-const.rs

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assume_bug.rs

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async-fn.rs

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atomic.rs

Fail 80% of the time on weak cmpxchg, not 50%

2021-01-26 00:13:54 -08:00

available-concurrency.rs

test new available_concurrency function

2020-10-18 11:22:09 +02:00

backtrace-api.rs

backtrace tests: support more ways of checking out Rust locally

2020-10-31 13:47:42 +01:00

backtrace-api.stderr

Add an fn_ptr field to MiriFrame

2020-10-10 13:07:57 -04:00

backtrace-api.stdout

Add an fn_ptr field to MiriFrame

2020-10-10 13:07:57 -04:00

backtrace-std.rs

Normalize column numbers

2020-11-19 09:21:11 +01:00

backtrace-std.stderr

Normalize column numbers

2020-11-19 09:21:11 +01:00

bad_substs.rs

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binary-heap.rs

expand collection tests

2020-09-10 08:44:27 +02:00

binops.rs

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bitop-beyond-alignment.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

bools.rs

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box.rs

rustup

2020-10-29 20:57:38 +01:00

box.stdout

test Box::into_raw aliasing

2020-10-27 17:26:36 +01:00

btreemap.rs

enable track-raw-ptr tests on Windows

2020-12-11 11:28:33 +01:00

c_enums.rs

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calloc.rs

remove some unnecessary feature flags

2020-11-10 16:51:07 +01:00

calls.rs

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cast_fn_ptr_unsafe.rs

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cast_fn_ptr.rs

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cast-rfc0401-vtable-kinds.rs

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catch.rs

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catch.stdout

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char.rs

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closure-drop.rs

do not use 'let _', it is strange

2018-11-26 15:31:53 +01:00

closure-field-ty.rs

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closures.rs

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coerce_non_capture_closure_to_fn_ptr.rs

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coercions.rs

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const-vec-of-fns.rs

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constants.rs

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current_dir.rs

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deriving-associated-types.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

disable-alignment-check.rs

add option to disable alignment checks

2020-04-13 17:58:03 +02:00

drop_empty_slice.rs

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drop_on_array_elements.rs

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drop_on_fat_ptr_array_elements.rs

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drop_on_zst_array_elements.rs

rename call_drop_ tests to drop_

2019-11-07 08:56:11 +01:00

drop_through_owned_slice.rs

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drop_through_trait_object_rc.rs

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drop_through_trait_object.rs

rename call_drop_ tests to drop_

2019-11-07 08:56:11 +01:00

dst-field-align.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

dst-irrefutable-bind.rs

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dst-raw.rs

update for rustc warning about missing dyn

2019-05-30 10:58:30 +02:00

dst-struct-sole.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

dst-struct.rs

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dyn-lcsit.rs

panicing now works with -Zmiri-track-raw-pointers

2020-12-31 00:17:08 +01:00

dyn-traits.rs

rustup

2020-10-29 20:57:38 +01:00

enum-nullable-const-null-with-fields.rs

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enums.rs

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env-exclude.rs

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env-without-isolation.rs

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env.rs

Windows shims for env var emulation

2020-03-27 08:43:08 -04:00

env.stdout

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exit.rs

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extern_types.rs

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fat_ptr.rs

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float_fast_math.rs

smoketest f32 fast-math intrinsics

2020-04-11 11:37:26 +02:00

float.rs

rustup; allow some lints

2021-01-26 11:43:39 +01:00

foreign-fn-linkname.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

format.rs

test raw pointer tracking; we cannot track raw pointers on Windows

2020-10-28 13:54:50 +01:00

format.stdout

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from_utf8.rs

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fs.rs

remove some unnecessary feature flags

2020-11-10 16:51:07 +01:00

fs.stderr

Merge fs and fs_libc tests

2020-10-04 12:06:51 -04:00

fs.stdout

Merge fs and fs_libc tests

2020-10-04 12:06:51 -04:00

function_pointers.rs

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generator.rs

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hashmap.rs

expand collection tests

2020-09-10 08:44:27 +02:00

heap_allocator.rs

Use new std::alloc::Allocator interface.

2020-12-05 00:13:33 +01:00

heap.rs

adjust for changed allocation strategy

2020-05-20 00:00:35 +02:00

hello.rs

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hello.stdout

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integer-ops.rs

rustup; allow some lints

2021-01-26 11:43:39 +01:00

intptrcast.rs

test casting a dangling ptr back from an int

2020-07-11 20:56:47 +02:00

intrinsics-integer.rs

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intrinsics-math.rs

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intrinsics.rs

test Weak into_raw/from_raw on dangling ptrs

2020-12-31 13:11:34 +01:00

ints.rs

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issue-3794.rs

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issue-3794.stdout

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issue-5917.rs

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issue-15063.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

issue-15080.rs

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issue-15523-big.rs

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issue-17877.rs

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issue-20575.rs

update for rustc warning about missing dyn

2019-05-30 10:58:30 +02:00

issue-23261.rs

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issue-26709.rs

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issue-27901.rs

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issue-29746.rs

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issue-30530.rs

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issue-31267-additional.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

issue-33387.rs

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issue-34571.rs

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issue-35815.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

issue-36278-prefix-nesting.rs

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issue-53728.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

issue-73223.rs

add a miscompilation test

2020-06-22 11:32:01 +02:00

issue-miri-133.rs

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issue-miri-184.rs

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issue-miri-1075.rs

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iter.rs

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last-use-in-cap-clause.rs

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leak-in-static.rs

leak checker: also test AtomicPtr stored via 'swap'

2020-12-21 11:36:39 +01:00

libc.rs

Per-thread errno storage

2020-09-02 20:57:20 -05:00

libc.stderr

Apply review changes, incrementing the clocks twice is an unnecessary hold-over from earlier versions so fixed.

2020-11-27 19:26:06 +00:00

linked-list.rs

expand collection tests

2020-09-10 08:44:27 +02:00

linux-getrandom-without-isolation.rs

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linux-getrandom.rs

Improve formatting

2019-08-04 16:44:32 -04:00

loop-break-value.rs

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loops.rs

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main_fn.rs

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main_result.rs

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malloc.rs

remove some unnecessary feature flags

2020-11-10 16:51:07 +01:00

many_shr_bor.rs

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match_slice.rs

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memchr.rs

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memleak_ignored.rs

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move-arg-2-unique.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

move-arg-3-unique.rs

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move-uninit-primval.rs

rename tests: undefined -> uninit

2020-04-27 12:32:03 +02:00

mpsc.rs

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multi_arg_closure.rs

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negative_discriminant.rs

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observed_local_mut.rs

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option_box_transmute_ptr.rs

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option_eq.rs

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overloaded-calls-simple.rs

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packed_struct.rs

make sure the raw_ptr macros also avoid UB

2020-06-20 14:31:47 +02:00

pointers.rs

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products.rs

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ptr_int_casts.rs

consolidate ptr tests in fewer files

2020-04-16 09:06:21 +02:00

ptr_offset.rs

rustup; account for ptr_offset_from stabilization

2020-08-24 10:06:44 +02:00

ptr_raw.rs

consolidate ptr tests in fewer files

2020-04-16 09:06:21 +02:00

rc.rs

test Weak into_raw/from_raw on dangling ptrs

2020-12-31 13:11:34 +01:00

recursive_static.rs

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reentrant-println.rs

Update comments, rearrange code

2020-04-05 12:09:31 -05:00

reentrant-println.stdout

Add test that exercises ReentrantMutex

2020-04-05 10:04:33 -05:00

regions-lifetime-nonfree-late-bound.rs

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regions-mock-trans.rs

remove some unnecessary feature flags

2020-11-10 16:51:07 +01:00

rfc1623.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

rust-lang-org.rs

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send-is-not-static-par-for.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

sendable-class.rs

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simd-intrinsic-generic-elements.rs

Removed copyright notices.

2019-02-26 18:37:45 +00:00

slices.rs

test raw pointer tracking; we cannot track raw pointers on Windows

2020-10-28 13:54:50 +01:00

small_enum_size_bug.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

specialization.rs

bump Rust

2020-06-20 11:48:42 +02:00

static_memory_modification.rs

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static_mut.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

strings.rs

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subslice_array.rs

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sums.rs

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tag-align-dyn-u64.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

thread-local.rs

fix writing to read-only raw pointer in thread-local test

2020-10-31 16:24:34 +01:00

time.rs

Update comment

2020-09-07 15:05:26 -05:00

too-large-primval-write-problem.rs

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track-caller-attribute.rs

test track_caller on trait objects

2020-07-31 18:30:07 +02:00

transmute_fat2.rs

fix a test for big-endian targets

2020-08-22 18:07:43 +02:00

transmute_fat2.stderr

Enable backtrace feature in the generated Xargo.toml

2020-10-20 18:27:55 -04:00

transmute_fat.rs

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trivial.rs

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try-operator-custom.rs

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tuple_like_enum_variant_constructor_pointer_opt.rs

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tuple_like_enum_variant_constructor_struct_pointer_opt.rs

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tuple_like_enum_variant_constructor.rs

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tuple_like_struct_constructor.rs

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u128.rs

use standard black_box function

2020-09-07 11:29:47 +02:00

union-overwrite.rs

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union.rs

avoid test-wide allowance of unused/dead code

2020-04-16 09:25:12 +02:00

unops.rs

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unsized-tuple-impls.rs

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validation_lifetime_resolution.rs

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vec-matching-fold.rs

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vec.rs

rustup; test swap of element with itself

2021-01-22 09:22:53 +01:00

vecdeque.rs

enable track-raw-ptr tests on Windows

2020-12-11 11:28:33 +01:00

vecdeque.stdout

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volatile.rs

use copy_op directly insteadof write_scalar

2019-02-26 19:49:02 +09:00

without-validation.rs

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write-bytes.rs

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wtf8.rs

test WTF8 encoding corner cases

2020-06-01 01:12:31 +02:00

zst_box.rs

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zst_variant_drop.rs

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zst.rs

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