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2019-10-28Rollup merge of #65792 - Centril:split-syntax-2, r=petrochenkovMazdak Farrokhzad-4/+3
rustc, rustc_passes: reduce deps on rustc_expand Part of #65324. r? @petrochenkov
2019-10-27Always use consteval to codegen caller_location.Adam Perry-12/+20
2019-10-27Panicking infra uses &core::panic::Location.Adam Perry-48/+8
This allows us to remove `static_panic_msg` from the SSA<->LLVM boundary, along with its fat pointer representation for &str. Also changes the signature of PanicInfo::internal_contructor to avoid copying. Closes #65856.
2019-10-27Implement core::intrinsics::caller_location.Adam Perry-0/+20
Returns a `&core::panic::Location` corresponding to where it was called, also making `Location` a lang item.
2019-10-27rustc, rustc_passes: don't depend on syntax_expand.Mazdak Farrokhzad-4/+3
This is done by moving some data definitions to syntax::expand.
2019-10-26Rollup merge of #65772 - mark-i-m:final-readmes, r=nikomatsakisMazdak Farrokhzad-120/+2
Remove the last remaining READMEs cc https://github.com/rust-lang/rustc-guide/pull/481 closes #48478 r? @nikomatsakis
2019-10-25Update bitflagsvarkor-1/+1
2019-10-25Re-enable Emscripten's exception handling supportThomas Lively-2/+3
Passes LLVM codegen and Emscripten link-time flags for exception handling if and only if the panic strategy is `unwind`. Sets the default panic strategy for Emscripten targets to `unwind`. Re-enables tests that depend on unwinding support for Emscripten, including `should_panic` tests.
2019-10-25Don't cast directly from `&[T; N]` to `*const T`Matthew Jasper-0/+1
Instead coerce to `*const [T; N]` and then cast.
2019-10-25Rollup merge of #65315 - spastorino:intern-place-projection, r=oli-obkMazdak Farrokhzad-65/+40
Intern place projection This should sit on top of https://github.com/rust-lang/rust/pull/65197. After that one merged, I'm gonna rebase on top of it. The important commits are the last three and there's a bunch of code repetition that I'm going to remove but for that I need to refactor some things that probably need to be added before this PR. Anyway this work helps as is because we can run perf tests :). r? @oli-obk /cc @nikomatsakis
2019-10-24remove the last remaining READMEsMark Mansi-120/+2
2019-10-23Rollup merge of #65657 - nnethercote:rm-InternedString-properly, r=eddybMazdak Farrokhzad-5/+5
Remove `InternedString` This PR removes `InternedString` by converting all occurrences to `Symbol`. There are a handful of places that need to use the symbol chars instead of the symbol index, e.g. for stable sorting; local conversions `LocalInternedString` is used in those places. r? @eddyb
2019-10-23Rollup merge of #65695 - ↵Yuki Okushi-6/+6
michaelwoerister:fix-self-profiling-work-item-event-names, r=wesleywiser self-profiling: Remove module names from some event-ids in codegen backend. Event-IDs are not supposed to contain argument values. Event-IDs are the equivalent of function names. Proper support for parameters will be added to self-profiling down the line. This PR fixes an oversight from https://github.com/rust-lang/rust/pull/64840. r? @wesleywiser
2019-10-23Rollup merge of #65681 - sunfishcode:followup, r=CentrilYuki Okushi-13/+24
Code cleanups following up on #65576. This makes a few code cleanups to follow up on the review comments in https://github.com/rust-lang/rust/pull/65576. r? @Centril
2019-10-22Pattern match over PlaceRef rather than PlaceSantiago Pastorino-65/+40
This prepares the code base for when projection is interned. Place's projection field is going to be `&List<PlaceElem<'tcx>>` so we won't be able to pattern match against it.
2019-10-22self-profiling: Remove module names from some event-ids in codegen backend.Michael Woerister-6/+6
2019-10-22Fix issue #64153 by checking for .rcgu.o suffix when trying to identify Rust ↵Michael Woerister-19/+26
generated object files.
2019-10-21Code cleanups following up on #65576.Dan Gohman-13/+24
This makes a few code cleanups to follow up on the review comments in https://github.com/rust-lang/rust/pull/65576.
2019-10-21Rename `ConstValue::Infer(InferConst::Canonical(..))` to `ConstValue::Bound(..)`varkor-0/+1
2019-10-21Use `Symbol` for codegen unit names.Nicholas Nethercote-4/+4
This is a straightforward replacement except for two places where we have to convert to `LocalInternedString` to get a stable sort.
2019-10-21Convert fields within `DefPathData` from `InternedString` to `Symbol`.Nicholas Nethercote-1/+1
It's a full conversion, except in `DefKey::compute_stable_hash()` where a `Symbol` now is converted to an `InternedString` before being hashed. This was necessary to avoid test failures.
2019-10-19Remove unreachable unit tuple compare binop codegenCaleb Behunin-8/+1
2019-10-19Rollup merge of #65448 - eddyb:codegen-box-less-special, r=oli-obkMazdak Farrokhzad-27/+19
rustc_codegen_ssa: remove some unnecessary Box special-casing. Could help simplify #60900. r? @nikomatsakis
2019-10-19Rollup merge of #65576 - sunfishcode:main-needs-argc-argv, r=alexcrichtonMazdak Farrokhzad-7/+18
Don't add `argc` and `argv` arguments to `main` on WASI. Add a target setting to allow targets to specify whether the generated `main` function should be passed `argc` and `argv` arguments. Set it to false on wasm32-wasi, since WASI's `args::args()` calls into the WASI APIs itself. This will allow the WASI toolchain to avoid linking and running command-line argument initialization code when the arguments aren't actually needed.
2019-10-17Don't add `argc` and `argv` arguments to `main` on WASI.Dan Gohman-7/+18
Add a target setting to allow targets to specify whether the generated `main` function should be passed `argc` and `argv` arguments. Set it to false on wasm32-wasi, since WASI's `args::args()` calls into the WASI APIs itself. This will allow the WASI toolchain to avoid linking and running command-line argument initialization code when the arguments aren't actually needed.
2019-10-17Rollup merge of #65465 - Centril:split-syntax-1, r=petrochenkovMazdak Farrokhzad-3/+4
Move syntax::ext to a syntax_expand and refactor some attribute logic Part of https://github.com/rust-lang/rust/pull/65324. r? @petrochenkov
2019-10-16Upgrade Emscripten targets to use upstream LLVM backendThomas Lively-5/+2
- Compatible with Emscripten 1.38.46-upstream or later upstream. - Refactors the Emscripten target spec to share code with other wasm targets. - Replaces the old incorrect wasm32 C call ABI with the correct one, preserving the old one as wasm32_bindgen_compat for wasm-bindgen compatibility. - Updates the varargs ABI used by Emscripten and deletes the old one. - Removes the obsolete wasm32-experimental-emscripten target. - Uses EMCC_CFLAGS on CI to avoid the timeout problems with #63649.
2019-10-16move syntax::ext to new crate syntax_expandMazdak Farrokhzad-3/+4
2019-10-15rustc_codegen_ssa: remove some unnecessary Box special-casing.Eduard-Mihai Burtescu-27/+19
2019-10-15Refactor: Rename `db` locals to `diag`Philipp Hansch-5/+5
https://github.com/rust-lang/rust/pull/64272 replaced `DiagnosticBuilder` with `Diagnostic` in some places. This commit just renames the DB variable from `db` to `diag` where it wasn't renamed.
2019-10-14Rollup merge of #65398 - estebank:capitalization-only, r=varkorTyler Mandry-1/+5
Bring attention to suggestions when the only difference is capitalization CC #65386.
2019-10-13Bring attention to suggestions when the only difference is capitalizationEsteban Küber-1/+5
2019-10-13Add top level provide/provide_extern to cg_ssa and cg_utilsbjorn3-0/+11
2019-10-13Remove MiscMethods::instancesbjorn3-15/+14
2019-10-13Inline functions from cg_ssa::callee and remove the modbjorn3-63/+24
Fixes #65271
2019-10-13s/FuncId/Functionbjorn3-12/+12
2019-10-13Move span_invalid_monomorphization_error from cg_llvm to cg_ssabjorn3-0/+40
The associated long diagnostic didn't get registered before
2019-10-13Remove is_const_integral method from ConstMethodsbjorn3-6/+4
2019-10-13Introduce FuncId backend typebjorn3-10/+13
2019-10-13Auto merge of #65182 - anp:reify-shim, r=eddybbors-1/+18
Add `Instance::resolve_for_fn_ptr` (RFC 2091 #2/N) Supercedes: https://github.com/rust-lang/rust/pull/65082 Depends on: https://github.com/rust-lang/rust/pull/65037 Tracking issue: https://github.com/rust-lang/rust/issues/47809 [RFC text](https://github.com/rust-lang/rfcs/blob/master/text/2091-inline-semantic.md) steps taken: * [x] add a `ReifyShim` that is similar to `VirtualShim` in behavior (see #54183) * [x] add `ty::Instance::resolve_for_fn_ptr` (leave `ty::Instance::resolve_vtable` alone), migrate appropriate callers * [x] `resolve_for_fn_ptr` returns the shim if calling a `#[track_caller]` function
2019-10-11Auto merge of #64716 - jonhoo:stabilize-mem-take, r=SimonSapinbors-1/+0
Stabilize mem::take (mem_take) Tracking issue: https://github.com/rust-lang/rust/issues/61129 r? @matklad
2019-10-10Auto merge of #59546 - sfanxiang:interminable-ub, r=nagisabors-1/+43
Add llvm.sideeffect to potential infinite loops and recursions LLVM assumes that a thread will eventually cause side effect. This is not true in Rust if a loop or recursion does nothing in its body, causing undefined behavior even in common cases like `loop {}`. Inserting llvm.sideeffect fixes the undefined behavior. As a micro-optimization, only insert llvm.sideeffect when jumping back in blocks or calling a function. A patch for LLVM is expected to allow empty non-terminate code by default and fix this issue from LLVM side. https://github.com/rust-lang/rust/issues/28728 **UPDATE:** [Mentoring instructions here](https://github.com/rust-lang/rust/pull/59546#issuecomment-515072429) to unstall this PR
2019-10-09Reifying callers of Instance::resolve use resolve_for_fn_ptr.Adam Perry-1/+18
2019-10-08Stabilize mem::take (mem_take)Jon Gjengset-1/+0
Tracking issue: https://github.com/rust-lang/rust/issues/61129
2019-10-08Rollup merge of #65081 - Mark-Simulacrum:remove-profile-queries, ↵Mazdak Farrokhzad-1/+1
r=michaelwoerister Remove -Zprofile-queries r? @michaelwoerister Per [zulip thread](https://zulip-archive.rust-lang.org/131828tcompiler/57361RemoveZprofilequeries.html).
2019-10-07Auto merge of #64780 - choller:master, r=michaelwoeristerbors-1/+3
Only add sanitizer runtimes when linking an executable (#64629). This change modifies the code to only add sanitizer runtimes if we are linking an executable, as those runtimes should never be part of libraries. I successfully compiled `mozilla-central` with ASan using this patch.
2019-10-07Rollup merge of #65137 - andjo403:selfProfiling_fix, r=michaelwoeristerMazdak Farrokhzad-4/+0
remove event that causes panics in measureme tools the measureme tools summarize and crox do not alow a event to go out of scope of the parent event codegen_and_optimize_crate ends after the codegen_crate event r? @wesleywiser cc @michaelwoerister @Mark-Simulacrum
2019-10-07Add feature gate for raw_dylib.Charles Lew-3/+13
2019-10-05Rollup merge of #65151 - tmandry:revert-emscripten-upgrade, r=tmandryTyler Mandry-2/+5
Revert #63649 - "Upgrade Emscripten targets to use upstream LLVM backend" This change caused the runtime of the linux-asmjs builder to nearly double from 2+ hours to about 4 hours, which happens to be the bors timeout. (It made it in barely under 4 hours when it was merged.) This is causing timeouts on all new changes. This reverts commit 7870050796e5904a0fc85ecbe6fa6dde1cfe0c91, reversing changes made to 2e7244807a7878f6eca3eb7d97ae9b413aa49014.
2019-10-05Rollup merge of #65100 - csmoe:generator, r=nikomatsakisTyler Mandry-1/+1
Replace GeneratorSubsts with SubstsRef Closes #42340 r? @nikomatsakis
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