15 Commits

Author SHA1 Message Date
bjorn3
2eaf0bc20a Merge add_handler into catch_switch
Some codegen backends may require all handlers to be immediately known
2022-01-24 14:10:05 +01:00
bjorn3
81597f2721 Remove unused return values from resume and cleanup_ret
Given that these instructions are diverging, not every codegen backend
may be able to produce a return value for them.
2022-01-24 13:48:09 +01:00
bjorn3
ba419539d5 Reorder unwinding related builder methods to differentiate between dwarf and msvc instructions 2022-01-24 13:45:34 +01:00
bors
da4a39264b Auto merge of #92419 - erikdesjardins:coldland, r=nagisa
Mark drop calls in landing pads `cold` instead of `noinline`

Now that deferred inlining has been disabled in LLVM (#92110), this shouldn't cause catastrophic size blowup.

I confirmed that the test cases from https://github.com/rust-lang/rust/issues/41696#issuecomment-298696944 still compile quickly (<1s) after this change. ~Although note that I wasn't able to reproduce the original issue using a recent rustc/llvm with deferred inlining enabled, so those tests may no longer be representative. I was also unable to create a modified test case that reproduced the original issue.~ (edit: I reproduced it on CI by accident--the first commit timed out on the LLVM 12 builder, because I forgot to make it conditional on LLVM version)

r? `@nagisa`
cc `@arielb1` (this effectively reverts #42771 "mark calls in the unwind path as !noinline")
cc `@RalfJung` (fixes #46515)

edit: also fixes #87055
2022-01-01 13:28:13 +00:00
bjorn3
54d2ec1a82 Merge commit '1411a98352ba6bee8ba3b0131c9243e5db1e6a2e' into sync_cg_clif-2021-12-31 2021-12-31 16:26:32 +01:00
Erik Desjardins
f3e1f33e3c keep noinline for system llvm < 14 2021-12-30 00:15:51 -05:00
Erik Desjardins
2fec53053e Mark drop calls in landing pads cold instead of noinline
Now that deferred inlining has been disabled in LLVM,
this shouldn't cause catastrophic size blowup.
2021-12-29 15:47:49 -05:00
Ramon de C Valle
14b83de047 Add LLVM CFI support to the Rust compiler
This commit adds LLVM Control Flow Integrity (CFI) support to the Rust
compiler. It initially provides forward-edge control flow protection for
Rust-compiled code only by aggregating function pointers in groups
identified by their number of arguments.

Forward-edge control flow protection for C or C++ and Rust -compiled
code "mixed binaries" (i.e., for when C or C++ and Rust -compiled code
share the same virtual address space) will be provided in later work as
part of this project by defining and using compatible type identifiers
(see Type metadata in the design document in the tracking issue #89653).

LLVM CFI can be enabled with -Zsanitizer=cfi and requires LTO (i.e.,
-Clto).
2021-10-25 16:23:01 -07:00
antoyo
9809f5d219
Update to nightly-2021-09-28 (#97) 2021-09-28 09:18:27 -04:00
antoyo
63608ac6b3
Fix/mismatch types (#94)
* Refactor test.sh script

* Fix mismatched types error
2021-09-27 19:31:24 -04:00
antoyo
64c561dc22
Fix global initialization (#91)
* Make define_global() return a RValue directly
* Return LValue in functions declaring a global variable
* Remove useless cast
* Fix bytes_in_context to use an array rvalue
* Remove global_names which is unused
* Make const_struct create a constant struct
* Correctly initialize global in static_addr_of_mut
* Fix global variable initialization
* Remove workaround for ARGV
2021-09-26 12:20:02 -04:00
Commeownist
48d60ab7c5
Update to nightly-2021-09-11 (#79)
* Implement `black_box` as intrinsic

Responsibility of implementing the black box is now lies on backend

* Remove some TODOs

* Update to nightly-2021-09-17

* CI: don't fail on warnings
2021-09-17 17:19:25 -04:00
antoyo
e228f0c16e
Cleanup (#67) 2021-08-15 08:28:46 -04:00
antoyo
0c89065b93
Update to nightly-2021-08-12 (#61) 2021-08-14 10:05:49 -04:00
Antoni Boucher
afae271d5d Initial commit 2021-08-12 21:46:50 -04:00