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path: root/src/librustc_codegen_ssa/traits
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2020-07-05Use for<'tcx> fn pointers in Providers, instead of having Providers<'tcx>.Eduard-Mihai Burtescu-2/+2
2020-07-02Rollup merge of #73724 - CryZe:wasm-saturating-casts, r=alexcrichtonManish Goregaokar-0/+2
Use WASM's saturating casts if they are available WebAssembly supports saturating floating point to integer casts behind a target feature. The feature is already available on many browsers. Beginning with 1.45 Rust will start defining the behavior of floating point to integer casts to be saturating as well. For this Rust constructs additional checks on top of the `fptoui` / `fptosi` instructions it emits. Here we introduce the possibility for the codegen backend to construct saturating casts itself and only fall back to constructing the checks ourselves if that is not possible. Resolves part of #73591
2020-07-02Use WASM's saturating casts if they are availableChristopher Serr-0/+2
WebAssembly supports saturating floating point to integer casts behind a target feature. The feature is already available on many browsers. Beginning with 1.45 Rust will start defining the behavior of floating point to integer casts to be saturating as well. For this Rust constructs additional checks on top of the `fptoui` / `fptosi` instructions it emits. Here we introduce the possibility for the codegen backend to construct saturating casts itself and only fall back to constructing the checks ourselves if that is not possible.
2020-06-29add spans to injected coverage countersRich Kadel-0/+52
added regions with counter expressions and counters. Added codegen_llvm/coverageinfo mod for upcoming coverage map Move coverage region collection to CodegenCx finalization Moved from `query coverageinfo` (renamed from `query coverage_data`), as discussed in the PR at: https://github.com/rust-lang/rust/pull/73684#issuecomment-649882503 Address merge conflict in MIR instrument_coverage test The MIR test output format changed for int types. moved debug messages out of block.rs This makes the block.rs calls to add coverage mapping data to the CodegenCx much more concise and readable. move coverage intrinsic handling into llvm impl I realized that having half of the coverage intrinsic handling in `rustc_codegen_ssa` and half in `rustc_codegen_llvm` meant that any non-llvm backend would be bound to the same decisions about how the coverage-related MIR terminators should be handled. To fix this, I moved the non-codegen portion of coverage intrinsic handling into its own trait, and implemented it in `rustc_codegen_llvm` alongside `codegen_intrinsic_call`. I also added the (required?) stubs for the new intrinsics to `IntrepretCx::emulate_intrinsic()`, to ensure calls to this function do not fail if called with these new but known intrinsics. address PR Feedback on 28 June 2020 2:48pm PDT
2020-06-21Make is_freeze and is_copy_modulo_regions take TyCtxtAtRalf Jung-1/+1
2020-06-15[WIP] injects llvm intrinsic instrprof.increment for coverage reportsRich Kadel-0/+9
This initial version only injects counters at the top of each function. Rust Coverage will require injecting additional counters at each conditional code branch.
2020-05-29Improve inline asm error diagnosticsAmanieu d'Antras-1/+1
2020-05-18Move InlineAsmTemplatePiece and InlineAsmOptions to librustc_astAmanieu d'Antras-1/+2
2020-05-18Implement asm! codegenAmanieu d'Antras-1/+42
2020-05-08Remove ast::{Ident, Name} reexports.Camille GILLOT-3/+2
2020-05-02fix rustdoc warningsTshepang Lekhonkhobe-1/+1
2020-04-26codegen_llvm: Simplify logic for relaxing PIC into PIEVadim Petrochenkov-4/+0
2020-04-05Remove Arcs in queries.Camille GILLOT-2/+1
2020-04-02use direct import for ErrorReportedMazdak Farrokhzad-1/+1
2020-04-02nix rustc_target::abi::* reexport in ty::layoutMazdak Farrokhzad-18/+16
2020-03-30rustc -> rustc_middle part 3 (rustfmt)Mazdak Farrokhzad-6/+6
2020-03-30rustc -> rustc_middle part 2Mazdak Farrokhzad-26/+26
2020-03-27Rename TyLayout to TyAndLayout.Ana-Maria Mihalache-11/+11
2020-03-26Rename asm! to llvm_asm!Amanieu d'Antras-3/+3
asm! is left as a wrapper around llvm_asm! to maintain compatibility.
2020-03-19Refactorings to begin getting rid of rustc_codegen_utilsMark Mansi-6/+57
2020-03-16use direct imports for `rustc::{lint, session}`.Mazdak Farrokhzad-2/+2
2020-03-13Auto merge of #67502 - Mark-Simulacrum:opt-catch, r=Mark-Simulacrumbors-1/+0
Optimize catch_unwind to match C++ try/catch This refactors the implementation of catching unwinds to allow LLVM to inline the "try" closure directly into the happy path, avoiding indirection. This means that the catch_unwind implementation is (after this PR) zero-cost unless a panic is thrown. https://rust.godbolt.org/z/cZcUSB is an example of the current codegen in a simple case. Notably, the codegen is *exactly the same* if `-Cpanic=abort` is passed, which is clearly not great. This PR, on the other hand, generates the following assembly: ```asm # -Cpanic=unwind: push rbx mov ebx,0x2a call QWORD PTR [rip+0x1c53c] # <happy> mov eax,ebx pop rbx ret mov rdi,rax call QWORD PTR [rip+0x1c537] # cleanup function call call QWORD PTR [rip+0x1c539] # <unfortunate> mov ebx,0xd mov eax,ebx pop rbx ret # -Cpanic=abort: push rax call QWORD PTR [rip+0x20a1] # <happy> mov eax,0x2a pop rcx ret ``` Fixes #64224, and resolves #64222.
2020-03-06fix various typosMatthias Krüger-1/+1
2020-03-05Remove eh_unwind_resume lang itemAmanieu d'Antras-1/+0
2020-02-29Rename `syntax` to `rustc_ast` in source codeVadim Petrochenkov-2/+2
2020-02-08rustc_codegen_ssa: remove unnecessary source_locations_enabled.Eduard-Mihai Burtescu-6/+1
2020-02-08rustc_codegen_llvm: remove InternalDebugLocation and simplify dbg_var_addr.Eduard-Mihai Burtescu-1/+0
2020-02-03rustc_codegen_ssa: split declare_local into create_dbg_var and dbg_var_addr.Eduard-Mihai Burtescu-6/+22
2020-01-09Precompile CGUs while the main thread has the implicit job server tokenJohn Kåre Alsaker-0/+2
2020-01-09Compile some CGUs in parallel at the start of codegenJohn Kåre Alsaker-4/+3
2020-01-05Remove rustc_hir reexports in rustc::hir.Mazdak Farrokhzad-4/+4
2020-01-04canonicalize FxHash{Map,Set} importsMazdak Farrokhzad-1/+1
2020-01-01Rename `syntax_pos` to `rustc_span` in source codeVadim Petrochenkov-6/+6
2019-12-22Format the worldMark Rousskov-28/+19
2019-12-03rustc_codegen_ssa: use FnAbi::of_instance wherever possible.Eduard-Mihai Burtescu-2/+3
2019-12-03rustc_codegen_ssa: take a FnAbi instead of a FnSig in declare_fn.Eduard-Mihai Burtescu-2/+3
2019-12-03rustc_codegen_ssa: remove define_fn and define_internal_fn.Eduard-Mihai Burtescu-14/+0
2019-11-21Aggregation of drive-by cosmetic changes.Alexander Regueiro-8/+12
2019-11-21reduce size of hir::ExprKindMazdak Farrokhzad-2/+2
2019-11-03rustc_codegen_ssa: rename ArgTypeMethods to ArgAbiMethods.Eduard-Mihai Burtescu-4/+4
2019-11-03rustc_target: rename {Fn,Arg}Type to {Fn,Arg}Abi.Eduard-Mihai Burtescu-10/+10
2019-10-31rustc_codegen_ssa: hide address ops from the declare_local interface.Eduard-Mihai Burtescu-3/+6
2019-10-31rustc_codegen_ssa: move debuginfo scopes into FunctionDebugContext.Eduard-Mihai Burtescu-12/+4
2019-10-31rustc_codegen_ssa: change set_var_name back to taking a &str.Eduard-Mihai Burtescu-1/+1
2019-10-31rustc_codegen_ssa: move debuginfo-related things to a new mir::debuginfo module.Eduard-Mihai Burtescu-2/+2
2019-10-28Rollup merge of #65792 - Centril:split-syntax-2, r=petrochenkovMazdak Farrokhzad-1/+1
rustc, rustc_passes: reduce deps on rustc_expand Part of #65324. r? @petrochenkov
2019-10-27Always use consteval to codegen caller_location.Adam Perry-2/+0
2019-10-27Panicking infra uses &core::panic::Location.Adam Perry-9/+0
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/+4
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-1/+1
This is done by moving some data definitions to syntax::expand.
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