bors e5f83d24ae Auto merge of #84797 - richkadel:cover-unreachable-statements, r=tmandry ... Report coverage `0` of dead blocks Fixes: #84018 With `-Z instrument-coverage`, coverage reporting of dead blocks (for example, blocks dropped because a conditional branch is dropped, based on const evaluation) is now supported. If `instrument-coverage` is enabled, `simplify::remove_dead_blocks()` finds all dropped coverage `Statement`s and adds their `code_region`s as `Unreachable` coverage `Statement`s to the `START_BLOCK`, so they are still included in the coverage map. Check out the resulting changes in the test coverage reports in this PR (in [commit 1](https://github.com/rust-lang/rust/pull/84797/commits/0b0d293c7c46bdadf80e5304a667e34c53c0cf7e)). r? `@tmandry` cc: `@wesleywiser`		2021-05-07 10:06:40 +00:00
..
check_consts	don't let const_fn feature flag affect impl-block-level trait bounds	2021-04-29 09:27:45 +02:00
coverage	Coverage instruments closure bodies in macros (not the macro body)	2021-05-06 11:15:39 -07:00
inline	Use small hash set in mir_inliner_callees	2021-02-24 00:00:00 +00:00
add_call_guards.rs	Remember the MirSource for each Body	2020-10-04 11:01:38 -07:00
add_moves_for_packed_drops.rs	Replace (Body, DefId) with Body where possible	2020-10-04 16:07:03 -07:00
add_retag.rs	Retagging: do not retag 'raw reborrows'	2020-10-31 15:31:27 +01:00
check_const_item_mutation.rs	Suppress CONST_ITEM_MUTATION lint if a dereference occurs anywhere	2020-12-17 15:25:55 -05:00
check_packed_ref.rs	make unaligned_refereces future-incompat lint warn-by-default, and remove the safe_packed_borrows lint that it replaces	2021-03-27 16:59:37 +01:00
check_unsafety.rs	unsafety checking: no longer care about is_min_const_fn	2021-04-25 12:53:05 +02:00
cleanup_post_borrowck.rs	Remember the MirSource for each Body	2020-10-04 11:01:38 -07:00
const_debuginfo.rs	Disable the constant debuginfo promotion pass by default	2020-12-14 19:56:10 -05:00
const_goto.rs	Report coverage 0 of dead blocks	2021-05-01 15:04:48 -07:00
const_prop.rs	Tidy	2021-04-20 09:30:28 -04:00
deaggregator.rs	Remember the MirSource for each Body	2020-10-04 11:01:38 -07:00
deduplicate_blocks.rs	Report coverage 0 of dead blocks	2021-05-01 15:04:48 -07:00
dest_prop.rs	Use AnonConst for asm! constants	2021-04-06 12:35:41 +01:00
dump_mir.rs	Remember the MirSource for each Body	2020-10-04 11:01:38 -07:00
early_otherwise_branch.rs	Report coverage 0 of dead blocks	2021-05-01 15:04:48 -07:00
elaborate_drops.rs	Prepare mir::Constant for ty::Const only supporting valtrees	2021-03-12 12:43:54 +00:00
function_item_references.rs	Review changes	2021-01-16 18:56:37 -05:00
generator.rs	Report coverage 0 of dead blocks	2021-05-01 15:04:48 -07:00
inline.rs	Report coverage 0 of dead blocks	2021-05-01 15:04:48 -07:00
instcombine.rs	move to separate pass, cache layouts	2021-03-16 21:34:31 -04:00
lower_intrinsics.rs	Prepare mir::Constant for ty::Const only supporting valtrees	2021-03-12 12:43:54 +00:00
match_branches.rs	Report coverage 0 of dead blocks	2021-05-01 15:04:48 -07:00
mod.rs	make unaligned_refereces future-incompat lint warn-by-default, and remove the safe_packed_borrows lint that it replaces	2021-03-27 16:59:37 +01:00
multiple_return_terminators.rs	Report coverage 0 of dead blocks	2021-05-01 15:04:48 -07:00
no_landing_pads.rs	Visit only terminators when removing landing pads	2021-01-18 00:00:00 +00:00
nrvo.rs	Extract mir_opt_level to a method and use Option to be able to know if the value is provided or not	2021-03-05 17:13:56 -03:00
promote_consts.rs	Use AnonConst for asm! constants	2021-04-06 12:35:41 +01:00
remove_noop_landing_pads.rs	Switch to changing cp_non_overlap in tform	2021-03-09 16:54:14 +00:00
remove_storage_markers.rs	Remove storage markers if they won't be used during code generation	2021-02-28 20:10:44 +01:00
remove_unneeded_drops.rs	Report coverage 0 of dead blocks	2021-05-01 15:04:48 -07:00
remove_zsts.rs	RemoveZsts: don't touch unions	2021-03-24 13:00:36 -04:00
required_consts.rs	extract ConstKind::Unevaluated into a struct	2021-03-20 17:21:44 +01:00
rustc_peek.rs	Prepare mir::Constant for ty::Const only supporting valtrees	2021-03-12 12:43:54 +00:00
simplify.rs	Report coverage 0 of dead blocks	2021-05-01 15:04:48 -07:00
simplify_branches.rs	Simplify assert terminator only if condition evaluates to expected value	2020-10-21 00:00:00 +00:00
simplify_comparison_integral.rs	Prepare mir::Constant for ty::Const only supporting valtrees	2021-03-12 12:43:54 +00:00
simplify_try.rs	Report coverage 0 of dead blocks	2021-05-01 15:04:48 -07:00
uninhabited_enum_branching.rs	Refactor how SwitchInt stores jump targets	2020-10-10 17:46:11 +02:00
unreachable_prop.rs	Report coverage 0 of dead blocks	2021-05-01 15:04:48 -07:00
validate.rs	Clean up todos	2021-03-09 19:31:31 +00:00