en Copyright 2015 Java http://172.16.0.5:8080/history/wasmtime-44.0.1/.gitattributes#7682a40d `generated-code.rs` is not itself generated code (#5571)cranelift/codegen/src/isa/*/lower/isle/generated_code.rs are hand-written modules that `include!` the actual generated code. Tagging these hand-written files as `linguist-generated` in .gitattributes tells GitHub not to show them in diffs by default. But they're actually important to review, so they should be included in diffs. List of files: /wasmtime-44.0.1/.gitattributes Fri, 13 Jan 2023 19:03:50 +0000 Jamey Sharp <jsharp@fastly.com> http://172.16.0.5:8080/history/wasmtime-44.0.1/.gitattributes#1141169f aarch64: Initial work to transition backend to ISLE (#3541)* aarch64: Initial work to transition backend to ISLE This commit is what is hoped to be the initial commit towards migrating the aarch64 backend to ISLE. There's seemingly a lot of changes here but it's intended to largely be code motion. The current thinking is to closely follow the x64 backend for how all this is handled and organized. Major changes in this PR are: * The `Inst` enum is now defined in ISLE. This avoids having to define it in two places (once in Rust and once in ISLE). I've preserved all the comments in the ISLE and otherwise this isn't actually a functional change from the Rust perspective, it's still the same enum according to Rust. * Lots of little enums and things were moved to ISLE as well. As with `Inst` their definitions didn't change, only where they're defined. This will give future ISLE PRs access to all these operations. * Initial code for lowering `iconst`, `null`, and `bconst` are implemented. Ironically none of this is actually used right now because constant lowering is handled in `put_input_in_regs` which specially handles constants. Nonetheless I wanted to get at least something simple working which shows off how to special case various things that are specific to AArch64. In a future PR I plan to hook up const-lowering in ISLE to this path so even though `iconst`-the-clif-instruction is never lowered this should use the const lowering defined in ISLE rather than elsewhere in the backend (eventually leading to the deletion of the non-ISLE lowering). * The `IsleContext` skeleton is created and set up for future additions. * Some code for ISLE that's shared across all backends now lives in `isle_prelude_methods!()` and is deduplicated between the AArch64 backend and the x64 backend. * Register mapping is tweaked to do the same thing for AArch64 that it does for x64. Namely mapping virtual registers is supported instead of just virtual to machine registers. My main goal with this PR was to get AArch64 into a place where new instructions can be added with relative ease. Additionally I'm hoping to figure out as part of this change how much to share for ISLE between AArch64 and x64 (and other backends). * Don't use priorities with rules * Update .gitattributes with concise syntax * Deduplicate some type definitions * Rebuild ISLE * Move isa::isle to machinst::isle List of files: /wasmtime-44.0.1/.gitattributes Thu, 18 Nov 2021 16:38:16 +0000 Alex Crichton <alex@alexcrichton.com> http://172.16.0.5:8080/history/wasmtime-44.0.1/.gitattributes#d377b665 Initial ISLE integration with the x64 backendOn the build side, this commit introduces two things:1. The automatic generation of various ISLE definitions for working withCLIF. Specifically, it generates extern type definitions for clif opcodes andthe clif instruction data `enum`, as well as extractors for matching each clifinstructions. This happens inside the `cranelift-codegen-meta` crate.2. The compilation of ISLE DSL sources to Rust code, that can be included in themain `cranelift-codegen` compilation.Next, this commit introduces the integration glue code required to getISLE-generated Rust code hooked up in clif-to-x64 lowering. When lowering a clifinstruction, we first try to use the ISLE code path. If it succeeds, then we aredone lowering this instruction. If it fails, then we proceed along the existinghand-written code path for lowering.Finally, this commit ports many lowering rules over from hand-written,open-coded Rust to ISLE.In the process of supporting ISLE, this commit also makes the x64 `Inst` capableof expressing SSA by supporting 3-operand forms for all of the existinginstructions that only have a 2-operand form encoding: dst = src1 op src2Rather than only the typical x86-64 2-operand form: dst = dst op srcThis allows `MachInst` to be in SSA form, since `dst` and `src1` aredisentangled.("3-operand" and "2-operand" are a little bit of a misnomer since not alloperations are binary operations, but we do the same thing for, e.g., unaryoperations by disentangling the sole operand from the result.)There are two motivations for this change:1. To allow ISLE lowering code to have value-equivalence semantics. We want ISLE lowering to translate a CLIF expression that evaluates to some value into a `MachInst` expression that evaluates to the same value. We want both the lowering itself and the resulting `MachInst` to be pure and referentially transparent. This is both a nice paradigm for compiler writers that are authoring and maintaining lowering rules and is a prerequisite to any sort of formal verification of our lowering rules in the future.2. Better align `MachInst` with `regalloc2`'s API, which requires that the input be in SSA form. List of files: /wasmtime-44.0.1/.gitattributes Wed, 13 Oct 2021 00:11:58 +0000 Nick Fitzgerald <fitzgen@gmail.com> http://172.16.0.5:8080/history/wasmtime-44.0.1/.gitattributes#c202a8ee Add a .gitattributes file to specify eol=LF (#1370)* Add a .gitattributes file specifying LF-style line endings. This is similar to [Rust's .gitattributes file] though simplified. Most of our source and documentation files already used LF-style line endings, including *.cs files, so this makes things more consistent. [Rust's .gitattributes file]: https://github.com/rust-lang/rust/blob/master/.gitattributes * Remove UTF-8 BOMs in *.cs files. Most of our *.cs files don't have UTF-8 BOMs, so this makes things more consistent. List of files: /wasmtime-44.0.1/.gitattributes Sat, 21 Mar 2020 01:36:13 +0000 Dan Gohman <sunfish@mozilla.com>