Matthias Krüger 5e04f513cd Rollup merge of #92142 - wesleywiser:fix_codecoverage_partitioning, r=tmandry ... [code coverage] Fix missing dead code in modules that are never called The issue here is that the logic used to determine which CGU to put the dead function stubs in doesn't handle cases where a module is never assigned to a CGU (which is what happens when all of the code in the module is dead). The partitioning logic also caused issues in #85461 where inline functions were duplicated into multiple CGUs resulting in duplicate symbols. This commit fixes the issue by removing the complex logic used to assign dead code stubs to CGUs and replaces it with a much simpler model: we pick one CGU to hold all the dead code stubs. We pick a CGU which has exported items which increases the likelihood the linker won't throw away our dead functions and we pick the smallest to minimize the impact on compilation times for crates with very large CGUs. Fixes #91661 Fixes #86177 Fixes #85718 Fixes #79622 r? ```@tmandry``` cc ```@richkadel``` This PR is not urgent so please don't let it interrupt your holidays! 🎄 🎁		2022-01-13 08:11:20 +01:00
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coverage	[code coverage] Fix missing dead code in modules that are never called	2021-12-20 17:08:29 -05:00
inline	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
abort_unwinding_calls.rs	Treat drop_in_place as nounwind with -Z panic-in-drop=abort	2021-09-10 14:18:15 +01:00
add_call_guards.rs	Move rustc_mir::transform to rustc_mir_transform.	2021-09-07 00:43:14 +02:00
add_moves_for_packed_drops.rs	Move the dataflow framework to its own crate.	2021-09-07 19:57:07 +02:00
add_retag.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
check_const_item_mutation.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
check_packed_ref.rs	give more help in the unaligned_references lint	2021-12-09 16:48:51 -05:00
check_unsafety.rs	Store a DefId instead of an AdtDef in AggregateKind::Adt	2021-12-22 14:36:34 -05:00
cleanup_post_borrowck.rs	Move rustc_mir::transform to rustc_mir_transform.	2021-09-07 00:43:14 +02:00
const_debuginfo.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
const_goto.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
const_prop.rs	rename StackPopClean::None to Root	2022-01-04 11:13:08 +01:00
deaggregator.rs	Move rustc_mir::transform to rustc_mir_transform.	2021-09-07 00:43:14 +02:00
deduplicate_blocks.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
dest_prop.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
dump_mir.rs	Inline on_mir_pass and add inline to dump_mir	2021-10-14 15:26:59 -05:00
early_otherwise_branch.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
elaborate_drops.rs	Delay remaining span_bugs in drop elaboration	2021-12-22 21:32:06 +01:00
function_item_references.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
generator.rs	Normalize generator-local types with unevaluated constants	2022-01-06 19:08:04 -08:00
inline.rs	Remove PartialOrd and Ord from LocalDefId	2021-12-22 10:50:57 -06:00
instcombine.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
lib.rs	Stabilize iter::zip.	2021-12-14 18:50:31 -04:00
lower_intrinsics.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
lower_slice_len.rs	Update passes with new interface	2021-12-02 17:31:38 -08:00
marker.rs	Add pass for simple phase change	2021-12-02 17:31:38 -08:00
match_branches.rs	Update passes with new interface	2021-12-02 17:31:38 -08:00
multiple_return_terminators.rs	Update passes with new interface	2021-12-02 17:31:38 -08:00
normalize_array_len.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
nrvo.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
pass_manager.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
remove_false_edges.rs	Separate RemoveFalseEdges from SimplifyBranches	2021-11-30 17:14:48 -08:00
remove_noop_landing_pads.rs	Update passes with new interface	2021-12-02 17:31:38 -08:00
remove_storage_markers.rs	Update passes with new interface	2021-12-02 17:31:38 -08:00
remove_uninit_drops.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
remove_unneeded_drops.rs	Add rationale for RemoveUnneededDrops	2021-11-30 17:25:30 -08:00
remove_zsts.rs	Update passes with new interface	2021-12-02 17:31:38 -08:00
required_consts.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
reveal_all.rs	use try_normalize_erasing_regions in RevealAllVisitor	2021-12-13 23:13:24 +01:00
separate_const_switch.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
shim.rs	Store a DefId instead of an AdtDef in AggregateKind::Adt	2021-12-22 14:36:34 -05:00
simplify_branches.rs	Auto merge of #91279 - scottmcm:small-refactor, r=nagisa	2021-12-06 13:04:18 +00:00
simplify_comparison_integral.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
simplify_try.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
simplify.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00
uninhabited_enum_branching.rs	Update passes with new interface	2021-12-02 17:31:38 -08:00
unreachable_prop.rs	Remove in_band_lifetimes from rustc_mir_transform	2021-12-07 21:04:40 -08:00