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

implement passing arguments to the interpreted program

2019-02-09 20:00:40 +01:00

args.stdout

implement passing arguments to the interpreted program

2019-02-09 20:00:40 +01:00

arrays.rs

test const-generic Vec::from(array)

2020-03-30 10:23:16 +02:00

arrays.stdout

test some const-generic-using methods

2019-07-13 10:25:04 +02:00

associated-const.rs

Removed copyright notices.

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

assume_bug.rs

ensure that integers cast to pointers will never point at a valid alloc, not even the zst alloc

2016-11-10 19:20:11 +01:00

async-fn.rs

use Wake trait for async-fn driver

2020-03-23 23:53:54 +01:00

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

Add regression test for bad substs

2017-03-24 09:03:19 +01:00

binary-heap.rs

expand collection tests

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

binops.rs

Removed copyright notices.

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

bitop-beyond-alignment.rs

avoid test-wide allowance of unused/dead code

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

bools.rs

update for bool/char being checked at binops

2018-08-24 19:18:21 +02:00

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

remove no-longer-needed allow(const_err)

2020-01-06 11:38:35 +01:00

calloc.rs

remove some unnecessary feature flags

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

calls.rs

don't use #[miri_run] anymore, but execute the main function

2016-06-13 15:33:05 +02:00

cast_fn_ptr_unsafe.rs

implement fn -> unsafe fn pointer casts

2016-06-17 16:49:06 +02:00

cast_fn_ptr.rs

improve fn pointer signature check to allow some casts that should be permitted

2017-05-30 10:41:38 -07:00

cast-rfc0401-vtable-kinds.rs

update for rustc warning about missing dyn

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

catch.rs

implement stdout/stderr on Windows

2018-12-19 12:16:07 +01:00

catch.stdout

the test suite assumes a libstd with full MIR; run test suite on xargo-built foreign libstds

2018-12-10 10:04:55 +01:00

char.rs

move some more helpers to rustc

2018-08-30 10:42:18 +02:00

closure-drop.rs

do not use 'let _', it is strange

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

closure-field-ty.rs

Handle closures in get_field_ty

2017-08-24 13:34:05 +02:00

closures.rs

move blosure tests to closures file; test Box<dyn> a bit more

2019-11-07 09:14:23 +01:00

coerce_non_capture_closure_to_fn_ptr.rs

remove some no-longer-needed allow(const_err)

2020-02-21 11:05:56 +01:00

coercions.rs

rename some more tests

2019-11-25 15:08:47 +01:00

const-vec-of-fns.rs

Various cosmetic improvements.

2019-02-26 18:37:46 +00:00

constants.rs

Remove now-useless #[miri_run] attributes.

2016-06-17 22:52:30 -06:00

current_dir.rs

Windows shims for GetCurrentDirectoryW/SetCurrentDirectoryW

2020-03-29 11:30:08 -04:00

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

do not use 'let _', it is strange

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

drop_on_array_elements.rs

rename call_drop_ tests to drop_

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

drop_on_fat_ptr_array_elements.rs

rename call_drop_ tests to drop_

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

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

rename call_drop_ tests to drop_

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

drop_through_trait_object_rc.rs

rename call_drop_ tests to drop_

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

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

Removed copyright notices.

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

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

Removed copyright notices.

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

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

Removed copyright notices.

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

enums.rs

add another test case

2019-09-20 08:53:35 +02:00

env-exclude.rs

remove or update 'ignore-windows' annotations in some tests

2020-03-27 14:18:19 -04:00

env-without-isolation.rs

remove or update 'ignore-windows' annotations in some tests

2020-03-27 14:18:19 -04:00

env.rs

Windows shims for env var emulation

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

env.stdout

fix env update, and expand test

2020-03-06 08:21:53 -05:00

exit.rs

implement exit

2019-04-21 12:36:17 +02:00

extern_types.rs

small test for extern_type

2018-08-26 15:15:26 +02:00

fat_ptr.rs

rename some more tests

2019-11-25 15:08:47 +01:00

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

test padding in format strings

2019-02-09 15:52:59 +01:00

from_utf8.rs

the test suite assumes a libstd with full MIR; run test suite on xargo-built foreign libstds

2018-12-10 10:04:55 +01:00

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

fix ptr comparison test

2019-02-13 10:07:31 +01:00

generator.rs

try even harder to catch invalid generator fields

2020-03-03 15:02:06 +01:00

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

implement stdout/stderr on Windows

2018-12-19 12:16:07 +01:00

hello.stdout

the test suite assumes a libstd with full MIR; run test suite on xargo-built foreign libstds

2018-12-10 10:04:55 +01:00

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

implement and test unchecked_{add,sub,mul} intrinsics

2019-06-16 11:10:33 +02:00

intrinsics-math.rs

Add acos, asin, and atan foreign functions

2019-11-21 17:33:30 -05:00

intrinsics.rs

test Weak into_raw/from_raw on dangling ptrs

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

ints.rs

finally stop using min/max_value and the integer modules

2020-03-04 13:01:06 +01:00

issue-3794.rs

update for rustc warning about missing dyn

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

issue-3794.stdout

the test suite assumes a libstd with full MIR; run test suite on xargo-built foreign libstds

2018-12-10 10:04:55 +01:00

issue-5917.rs

Removed copyright notices.

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

issue-15063.rs

avoid test-wide allowance of unused/dead code

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

issue-15080.rs

slice_patterns is stable now

2020-01-19 10:03:18 -06:00

issue-15523-big.rs

Removed copyright notices.

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

issue-17877.rs

slice_patterns is stable now

2020-01-19 10:03:18 -06:00

issue-20575.rs

update for rustc warning about missing dyn

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

issue-23261.rs

update for rustc warning about missing dyn

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

issue-26709.rs

update for rustc warning about missing dyn

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

issue-27901.rs

Removed copyright notices.

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

issue-29746.rs

Removed copyright notices.

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

issue-30530.rs

Fix unused_must_use inside Box

2019-06-30 15:31:14 +01:00

issue-31267-additional.rs

Removed copyright notices.

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

issue-33387.rs

update for rustc warning about missing dyn

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

issue-34571.rs

Removed copyright notices.

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

issue-35815.rs

avoid test-wide allowance of unused/dead code

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

issue-36278-prefix-nesting.rs

Removed copyright notices.

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

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

rename miri-issue to issue-miri for grouping

2019-11-14 10:16:44 +01:00

issue-miri-184.rs

do not use 'let _', it is strange

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

issue-miri-1075.rs

test diverging closure fn ptr coercion

2019-12-02 15:42:33 +01:00

iter.rs

fix into_iter usage

2019-11-08 12:43:26 +01:00

last-use-in-cap-clause.rs

update for rustc warning about missing dyn

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

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

test host randomness access

2019-08-23 23:30:23 +02:00

linux-getrandom.rs

Improve formatting

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

loop-break-value.rs

the never type got de-stabilized again; adjust tests

2019-12-15 12:23:43 +01:00

loops.rs

don't use #[miri_run] anymore, but execute the main function

2016-06-13 15:33:05 +02:00

main_fn.rs

run start and main language item if provided

2016-06-14 11:52:45 +02:00

main_result.rs

support main functions with Result return type

2019-12-23 17:45:23 +01:00

malloc.rs

remove some unnecessary feature flags

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

many_shr_bor.rs

remove a whole lot of unnecessary attributes

2018-12-02 11:26:09 +01:00

match_slice.rs

fix matching on chars

2016-09-27 11:10:25 +02:00

memchr.rs

platform -> target

2020-03-22 08:55:39 +01:00

memleak_ignored.rs

add flag to ignore memory leaks

2019-12-07 13:44:48 +01:00

move-arg-2-unique.rs

Removed copyright notices.

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

move-arg-3-unique.rs

Removed copyright notices.

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

move-uninit-primval.rs

rename tests: undefined -> uninit

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

mpsc.rs

force pointers before reborrowing; fixes cargo miri test suite

2019-07-10 14:36:56 +02:00

multi_arg_closure.rs

update for rustc warning about missing dyn

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

negative_discriminant.rs

Read discriminant as a signed integer if specified by layout.

2016-11-05 15:41:19 +00:00

observed_local_mut.rs

add an option to disable Stacked Borrows

2020-02-24 16:22:02 +01:00

option_box_transmute_ptr.rs

remove memory leak from run-pass test

2017-02-24 10:41:15 +01:00

option_eq.rs

option_eq test passes now since casts are implemented.

2016-09-19 02:16:51 -06:00

overloaded-calls-simple.rs

Removed copyright notices.

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

packed_struct.rs

make sure the raw_ptr macros also avoid UB

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

pointers.rs

finally stop using min/max_value and the integer modules

2020-03-04 13:01:06 +01:00

products.rs

Remove now-useless #[miri_run] attributes.

2016-06-17 22:52:30 -06:00

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

stub Retag hook; fix tests for removal of -Zmir-emit-validate

2018-11-01 08:58:03 +01:00

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

update for rustc warning about missing dyn

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

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

fix matching on chars

2016-09-27 11:10:25 +02:00

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

Removed copyright notices.

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

sendable-class.rs

Removed copyright notices.

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

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

test mutating a non-mut static with interior mutability

2018-09-23 09:14:55 +02:00

static_mut.rs

avoid test-wide allowance of unused/dead code

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

strings.rs

test mutable string slice indexing

2019-02-06 11:47:32 +01:00

subslice_array.rs

slice_patterns is stable now

2020-01-19 10:03:18 -06:00

sums.rs

remove/fix outdated FIXMEs in tests

2018-12-02 11:14:24 +01:00

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

Various cosmetic improvements.

2019-02-26 18:37:46 +00:00

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

add an option to disable Stacked Borrows

2020-02-24 16:22:02 +01:00

trivial.rs

Remove now-useless #[miri_run] attributes.

2016-06-17 22:52:30 -06:00

try-operator-custom.rs

Removed copyright notices.

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

tuple_like_enum_variant_constructor_pointer_opt.rs

we can enable a bunch of tests for validation again

2017-09-09 11:18:02 +02:00

tuple_like_enum_variant_constructor_struct_pointer_opt.rs

correctly implement pointers to enum variant constructors

2017-01-28 15:46:46 +01:00

tuple_like_enum_variant_constructor.rs

allow using tuple variant names as function handles

2017-01-23 12:56:40 +01:00

tuple_like_struct_constructor.rs

allow the use of tuple struct constructors as functions

2017-01-12 08:52:22 +01:00

u128.rs

use standard black_box function

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

union-overwrite.rs

rustup: fix for write_bytes and new union rules

2019-10-22 10:13:11 +02:00

union.rs

avoid test-wide allowance of unused/dead code

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

unops.rs

some unary operator tests

2018-08-26 20:42:02 +02:00

unsized-tuple-impls.rs

Removed copyright notices.

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

validation_lifetime_resolution.rs

Removed copyright notices.

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

vec-matching-fold.rs

slice_patterns is stable now

2020-01-19 10:03:18 -06:00

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

test VecDeque debug printing

2019-02-15 10:41:12 +01:00

volatile.rs

use copy_op directly insteadof write_scalar

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

without-validation.rs

test for no-validation-only failure

2019-06-04 13:21:04 +02:00

write-bytes.rs

add write_bytes() test for a larger-than-u128 struct

2017-03-13 20:33:23 -04:00

wtf8.rs

test WTF8 encoding corner cases

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

zst_box.rs

sanity check that boxes of zsts don't deallocate the zst allocation

2016-11-03 16:01:14 +01:00

zst_variant_drop.rs

drop zst fields of null pointer optimized structs and enums

2017-02-24 11:04:13 +01:00

zst.rs

adjust for refactored memory pointer checks

2019-06-23 20:19:26 +02:00