This is test for #42918.
To reproduce bug you need machine with arm cpu and compile with optimization.
I tried with rustc 1.19.0-nightly (3d5b8c626 2017-06-09),
if compile test with -C opt-level=3 for target=arm-linux-androideabi
and run on "Qualcomm MSM 8974 arm cpu" then assert fails,
if compile and run with -C opt-level=2 it gives segmentation fault.
So I add `compile-flags: -O`.
With rustc 1.19.0 (0ade33941 2017-07-17) all works fine.
Closes#42918
The `sized_constraint` and `needs_drop_raw` queries both use `try_get` to detect
cycles, but in both of these cases the cycle indicates an error has happened
elsewhere in compilation. In these cases we can just delay the diagnostic to get
emitted as a bug later if we ended up forgetting to emit the error diagnostic.
This alters the return value of the `try_get` function so the error contains a
diagnostic rather than a `CycleError`. This way consumers are forced to take
*some* action (else they get a bug to an un-emitted diagnostic). This action
could be to emit the error itself, or in some cases delay the diagnostic as a
bug and continue.
This adds a function to `DiagnosticBuilder` to delay the entire diagnostic as a
bug to be emitted at a later time. This'll end up getting used in the compiler
in the subsequent commits...
rustc: Capture diagnostics from all queries
This commit alters the `rustc::ty::maps` implementation to ensure that all
output diagnostics from the compiler are tracked for the duration of each query.
These are then intended to be replayed back the first time a cached value is
loaded, and otherwise the cache should operate the same as it does today.
Closes#42513
Fixes#44078. Fixes#44023.
The start_col member is given in chars,
while the code previously assumed it was given in bytes.
The more basic issue #44080 doesn't get fixed.
Discovered in #43767 it turns out the default MSBuild generator in CMake for
whatever reason isn't supporting many of the configuration options we give to
LLVM. To improve the contributor experience automatically enable Ninja if we
find it to ensure that "flavorful" configurations of LLVM work by default in
more situations.
Closes#43767
Adding E0623 for structs
This is a fix to #43275
The error message is
```
+error[E0623]: lifetime mismatch
+ --> $DIR/ex3-both-anon-regions-both-are-structs.rs:15:12
+ |
+14 | fn foo(mut x: Vec<Ref>, y: Ref) {
+ | --- --- these structs are declared with different lifetimes...
+15 | x.push(y);
+ | ^ ...but data from `y` flows into `x` here
+
+error: aborting due to previous error
```
r? @nikomatsakis
incr.comp.: Cache Hir-DepNodeIndices in the HIR map.
In preparation for red/green. This should also be faster than before without any additional memory cost.
r? @nikomatsakis
Elaborate trait obligations when typechecking impls
When typechecking trait impl declarations, we only checked that bounds explictly written on the trait declaration hold.
We now also check that bounds which would have been implied by the trait reference do hold.
Fixes#43784.
Do not assume libunwind.a is available on musl
Fixes#40113, #44069, and clux/muslrust#16.
libunwind.a is not copied from musl_root, so it must be integrated into the unwind crate.
This commit alters the `rustc::ty::maps` implementation to ensure that all
output diagnostics from the compiler are tracked for the duration of each query.
These are then intended to be replayed back the first time a cached value is
loaded, and otherwise the cache should operate the same as it does today.
Closes#42513
Speed up APFloat division by using short division for small divisors.
Fixes#43828 (hopefully), by not doing long division bit-by-bit for small divisors.
When parsing the ~200,000 decimal float literals in the `tuple-stress` benchmark, this change brings roughly a 5x speed increase (from `0.6s` to `0.12s`), and the hottest instructions are native `div`s.
Profile queries
This PR implements the "profile queries" debugging feature described here:
https://github.com/rust-lang-nursery/rust-forge/blob/master/profile-queries.md
In particular, it implements the debugging flag `-Z profile-queries`
FYI: This PR is my second attempt at pushing these changes. My original PR required a rebase; I have now done that rebase manually, after messing up with git's "interactive" rebase support. The original (now closed/cancelled) PR is this one: https://github.com/rust-lang/rust/issues/43156
r? @nikomatsakis
L4Re Target: Add the needed Libraries and locate them
Add the libraries and objects that have to be linked to a get working L4Re Binary using pre- and post-link-args. Additionaly some ld commands had to be passed.
* L4Re libraries and objects will be located by an environment variable.
* gcc libraries and objects will be located using a gcc call.
GCC is mandatory for this target, that might need documentation somewhere. As soon as something mandatory cannot be found, the compiler will panic. This is intended, because the functions involved don't allow the usage of a Result type. libgcc_eh is now passed using `-l` and crtbeginT.o and crtend.o are now located using `gcc -print-filename`.
