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34 Commits

Author SHA1 Message Date
The8472
55def120a4 replace Vec<u8> with Box<[u8]> 2021-08-05 19:52:08 +02:00
The8472
f408d4bb8c use box->vec conversion API that doesn't reallocate 2021-08-05 09:32:41 +02:00
The8472
83b01b9f1a use zeroed allocation instead of eagerly initializing the memory 2021-08-05 00:24:31 +02:00
Ralf Jung
14de6ec8d8 CTFE: throw unsupported error when partially overwriting a pointer 2021-07-31 11:30:33 +02:00
Ralf Jung
a5299fb688 add some comments regarding the two major quirks of our memory model 2021-07-16 13:16:09 +02:00
Ralf Jung
7c720ce612 get rid of incorrect erase_for_fmt 2021-07-16 10:09:56 +02:00
Ralf Jung
adbe7554d7 enable Miri to fix the bytes in an allocation (since ptr offsets have different meanings there) 2021-07-15 18:03:22 +02:00
Ralf Jung
626605cea0 consistently treat None-tagged pointers as ints; get rid of some deprecated Scalar methods 2021-07-14 18:17:49 +02:00
Ralf Jung
d4f7dd6702 CTFE/Miri engine Pointer type overhaul: make Scalar-to-Pointer conversion infallible 
This resolves all the problems we had around "normalizing" the representation of a Scalar in case it carries a Pointer value: we can just use Pointer if we want to have a value taht we are sure is already normalized.
 2021-07-14 18:17:46 +02:00
Ralf Jung
c8baac5776 remove remaining use of Pointer in Allocation API 2021-07-12 18:45:26 +02:00
Yuki Okushi
1ca32050b1 Rollup merge of #86685 - RalfJung:alloc-mut, r=oli-obk 
double-check mutability inside Allocation

r? `@oli-obk`
 2021-07-06 02:33:14 +09:00
Smitty
e9d69d9f8e Allocation failure in constprop panics right away 2021-07-02 16:06:12 -04:00
Smitty
3e20129a18 Delay ICE on evaluation fail 2021-06-30 15:38:31 -04:00
Smittyvb
12a8d106f6 Note that even ConstProp follows the rules 
Co-authored-by: Ralf Jung <post@ralfj.de>
 2021-06-30 12:42:04 -04:00
Smittyvb
55379bb7ea simplify explanation comment 
Co-authored-by: Ralf Jung <post@ralfj.de>
 2021-06-30 09:07:47 -04:00
Smitty
d04da1125d Properly handle const prop failures 2021-06-29 20:22:32 -04:00
Smitty
ab66c3fbd4 Add comment with reasoning for non-determinism 2021-06-29 19:08:30 -04:00
Smitty
43b55cf893 Simplify allocation creation 2021-06-29 19:08:29 -04:00
Smitty
524e575bb4 Support allocation failures when interperting MIR 
Note that this breaks Miri.

Closes #79601
 2021-06-29 19:08:26 -04:00
Ralf Jung
719dafc48b double-check mutability inside Allocation 2021-06-28 09:19:36 +02:00
Ralf Jung
f9b36b4f65 fix comment 
Co-authored-by: bjorn3 <bjorn3@users.noreply.github.com>
 2021-05-23 13:26:51 +02:00
Ralf Jung
585141b219 support creating mutable allocations from byte slices 2021-05-23 12:37:16 +02:00
Ralf Jung
563ab4a106 add Align::ONE; add methods to access alloc.extra 2021-05-18 19:33:55 +02:00
Ralf Jung
46c2286395 CTFE core engine allocation & memory API improvemenets 
- make Allocation API offset-based (no more Pointer)
- make Memory API higher-level (combine checking for access and getting access into one operation)
 2021-05-18 19:33:55 +02:00
Ralf Jung
a28be5cbe8 Rollup merge of #85412 - RalfJung:c_str, r=oli-obk 
remove some functions that were only used by Miri

and Miri does not need them any more with https://github.com/rust-lang/miri/pull/1805.

r? ``@oli-obk``
 2021-05-17 18:52:17 +02:00
Ralf Jung
cb5533cff2 remove some functions that were only used by Miri 2021-05-17 14:43:16 +02:00
Ralf Jung
7962b5ae45 remove size field from Allocation 2021-05-17 13:30:16 +02:00
Mara Bos
cfb4ad4f2a Remove unwrap_none/expect_none from compiler/. 2021-03-18 14:25:54 +01:00
bors
89d32eb1ea Auto merge of #82338 - RalfJung:interp-error-allocs, r=oli-obk 
all InterpError allocate now, so adjust alloc-error-check

Cc https://github.com/rust-lang/rust/pull/82116#discussion_r578310770
r? `@oli-obk`
 2021-02-25 08:27:09 +00:00
Matthias Krüger
393878b15b remove redundant return value Ok(()) of clear_relocations() 2021-02-21 13:25:28 +01:00
Ralf Jung
d496bfc161 all InterpError allocate now, so adjust alloc-error-check 2021-02-20 19:01:25 +01:00
est31
a0fc455d30 Replace absolute paths with relative ones 
Modern compilers allow reaching external crates
like std or core via relative paths in modules
outside of lib.rs and main.rs.
 2020-10-13 14:16:45 +02:00
Jubilee Young
74b4eea64d Remove reference to byteorder limits 2020-09-04 21:51:28 -07:00
mark
9e5f7d5631 mv compiler to compiler/ 2020-08-30 18:45:07 +03:00