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Author SHA1 Message Date
Ralf Jung
53ed3b7956 make memory allocation hook infallible 2018-11-25 10:49:43 +01:00
Ralf Jung
6cca7165ea pass MemoryExtra to find_foreign_static and adjust_static_allocation; they might have to create allocations 2018-11-25 10:49:43 +01:00
Ralf Jung
4c090fe310 bring back MemoryExtra 2018-11-25 10:49:43 +01:00
Simon Sapin
68a26ec647 Stabilize the int_to_from_bytes feature 
Fixes #52963
 2018-11-25 08:29:01 +01:00
Nicholas Nethercote
94967ae8c1 Remove OpenSnapshot and CommittedSnapshot markers from RegionConstraintCollector. 
They're not strictly necessary, and they result in the `Vec` being
allocated even for the trivial (and common) case where a
`start_snapshot` is immediately followed by a `commit` or `rollback_to`.

The commit also removes a now-unnecessary argument of
`pop_placeholders()`.
 2018-11-25 17:54:06 +11:00
Nicholas Nethercote
2d68fa07bf Remove OpenSnapshot and CommittedSnapshot markers from SnapshotMap. 
They're not strictly necessary, and they result in the `Vec` being
allocated even for the trivial (and common) case where a
`start_snapshot` is immediately followed by a `commit` or `rollback_to`.
 2018-11-25 17:54:06 +11:00
Nicholas Nethercote
f23c969492 Introduce in_snapshot and assert_open_snapshot methods. 
This makes the two snapshot implementations more consistent with each
other and with crate `ena`.
 2018-11-25 17:54:06 +11:00
Nicholas Nethercote
f5624e41e8 Make commit and rollback_to methods take ownership of the snapshots. 
Because they shouldn't be reused. This provides consistency with the
`ena` crate.
 2018-11-25 17:54:06 +11:00
Nicholas Nethercote
7fe09a6551 Replace a .truncate(0) call with .clear(). 2018-11-25 17:54:06 +11:00
Nicholas Nethercote
c86bbd4830 Rename UndoLogEntry as UndoLog. 
So that it matches `librustc_data_structures/snapshot_map/mod.rs` and
the `ena` crate.
 2018-11-25 17:54:06 +11:00
Nicholas Nethercote
9847b5cfcb Remove insert_noop. 
Because it's as useless as its name suggests.

This commit also renames `UndoLog::Noop` as `UndoLog::Purged`, because
(a) that's a more descriptive name and (b) it matches the name used in
similar code in `librustc/infer/region_constraints/mod.rs`.
 2018-11-25 17:54:06 +11:00
Nicholas Nethercote
1e34dfce6f Update to ena 0.11.0. 
This version has some significant speed-ups relating to snapshotting.
 2018-11-25 17:54:04 +11:00
bors
abe19a7305 Auto merge of #55921 - scalexm:placeholders, r=nikomatsakis 
Add placeholder types

Fixes #48696 (handle universes in canonicalization of type inference vars), and fixes #55098.
 2018-11-25 06:48:21 +00:00
bors
37961dbd2d Auto merge of #55959 - matthewjasper:remove-end-region, r=nikomatsakis 
Cleanup from lexical MIR borrowck removal

Lexical MIR borrowck was removed months ago now, and `EndRegion`s are no longer used for MIRI verification.

* Remove `rustc::mir::StatementKind::EndRegion` and the `-Zemit_end_regions` flag
* Use `RegionVid` instead of `Region` in BorrowSet
* Rewrite drop generation to create fewer goto terminators.

r? @nikomatsakis
 2018-11-25 03:00:30 +00:00
Wesley Wiser
dce1c4530e [Windows] Work around non-monotonic clocks in the self-profiler 
On Windows, the high-resolution timestamp api doesn't seem to always be
monotonic. This can cause panics when the self-profiler uses the
`Instant` api to find elapsed time.

Work around this by detecting the case where now is less than the start
time and just use 0 elapsed ticks as the measurement.

Fixes #51648
 2018-11-24 21:38:35 -05:00
Esteban Küber
6b338e034a Suggest correct enum variant on typo 2018-11-24 16:25:13 -08:00
bors
2dd94c133e Auto merge of #55915 - oli-obk:miri_engine_refactoring, r=RalfJung 
Miri engine refactoring

next small step of https://github.com/rust-lang/rust/pull/55293

r? @RalfJung
 2018-11-25 00:00:17 +00:00
scalexm
b8a30f04cd Try to work around #53332 in src/test/run-pass/rustc-rust-log.rs 2018-11-24 23:42:14 +01:00
bors
edaac35d67 Auto merge of #56201 - kennytm:revert-55935, r=alexcrichton 
Revert "appveyor: Use VS2017 for all our images"

This reverts commit 008e5dcbd5 (#55935)

We suspect this causes the spurious failure in https://github.com/rust-lang/rust/pull/55906#issuecomment-441365922 and https://github.com/rust-lang/rust/pull/55915#issuecomment-441377543.

r? @alexcrichton
 2018-11-24 20:08:57 +00:00
kennytm
91f8e3721c
Revert "appveyor: Use VS2017 for all our images" 
This reverts commit 008e5dcbd5.
 2018-11-25 00:25:56 +08:00
Oliver Scherer
b853252bcd Rebase fallout 2018-11-24 11:36:32 +01:00
Oliver Scherer
360f9888bc update miri submodule 2018-11-24 11:36:32 +01:00
Oliver Scherer
3220c0ce1a Explain why vtable generation needs no alignment checks 2018-11-24 11:36:32 +01:00
Oliver Scherer
22872196f5 Factor out mplace offsetting into its own method 2018-11-24 11:36:32 +01:00
Oliver Scherer
972d798881 Document Allocation 2018-11-24 11:36:32 +01:00
Oliver Scherer
cb8fa33572 tidy 2018-11-24 11:36:32 +01:00
Oliver Scherer
a5ef2d1b54 Array and slice projections need to update the place alignment 2018-11-24 11:36:32 +01:00
Ralf Jung
10102d1f0a comment nit 
Co-Authored-By: oli-obk <github35764891676564198441@oli-obk.de>
 2018-11-24 11:36:32 +01:00
Oliver Scherer
9b8e82ad24 Use correct alignment checks for scalars and zsts, too 2018-11-24 11:36:32 +01:00
Oliver Scherer
927c5aab47 Use correct alignment for fat pointer extra part 2018-11-24 11:36:32 +01:00
Oliver Scherer
9d57adf2ba Explain {read,write}_scalar failure to cope with zsts 2018-11-24 11:36:32 +01:00
Oliver Scherer
8b04b09869 Move alignment checks out of Allocation 2018-11-24 11:36:32 +01:00
Oliver Scherer
1c08ced995 Explain early abort legality 2018-11-24 11:36:32 +01:00
Oliver Scherer
d3139b9c41 Rebase fallout 2018-11-24 11:36:32 +01:00
Oliver Scherer
b820cc79a9 Clean up array/slice of primitive validation 2018-11-24 11:36:32 +01:00
Oliver Scherer
65b702c6b1 Update miri submodule 2018-11-24 11:36:32 +01:00
Oliver Scherer
87bd5d13d8 Remove stderr file, because the test passes now 2018-11-24 11:36:32 +01:00
Oliver Scherer
ef332959dc Reintroduce zst-slice reading read_bytes method on Memory 2018-11-24 11:36:32 +01:00
Oliver Scherer
ebf03363f2 Properly test for int pointers in fat pointers to str slices of zero chars 2018-11-24 11:36:31 +01:00
Oliver Scherer
cc2f46e55a Reorder methods in allocation.rs 2018-11-24 11:36:31 +01:00
Oliver Scherer
20dee47a66 Add regression test for integral pointers in zst str slice fat pointers 2018-11-24 11:36:31 +01:00
Oliver Scherer
df1ed0c2a6 Make a method that doesn't need Self a free function instead 2018-11-24 11:36:31 +01:00
Oliver Scherer
a835555474 Make zst accesses in allocations take the regular path. 
Speeding up zst accesses should be done on a higher level.
 2018-11-24 11:36:31 +01:00
Oliver Scherer
3a0e8254b0 Remove unnecessary Result (function always returned Ok) 2018-11-24 11:36:31 +01:00
Oliver Scherer
07e7804110 Adjust rustc_mir::interpret to changes in Allocation/Memory methods 2018-11-24 11:36:31 +01:00
Oliver Scherer
9ecde5712e Move some byte and scalar accessors from Memory to Allocation 2018-11-24 11:36:31 +01:00
Oliver Scherer
ad11856431 Fiddle a HasDataLayout through the allocation methods 2018-11-24 11:36:31 +01:00
Oliver Scherer
04210f3e16 Access self instead of alloc 2018-11-24 11:36:31 +01:00
Oliver Scherer
c392fbbbf1 Adjust generics to Allocation parameters 2018-11-24 11:36:31 +01:00
Oliver Scherer
7c9d786e50 Move alignment and bounds check from Memory to Allocation 2018-11-24 11:36:31 +01:00