cranelift

rust jit wasm webassembly runtime wasi cranelift sandbox wasmtime

Saúl Cabrera 94b51cdb17 winch: Use cranelift-codegen x64 backend for emission. (#5581 ) This change substitutes the string based emission mechanism with cranelift-codegen's x64 backend. This change _does not_: * Introduce new functionality in terms of supported instructions. * Change the semantics of the assembler/macroassembler in terms of the logic to emit instructions. The most notable differences between this change and the previous version are: * Handling of shared flags and ISA-specific flags, which for now are left with the default value. * Simplification of instruction emission per operand size: previously the assembler defined different methods depending on the operand size (e.g. `mov` for 64 bits, and `movl` for 32 bits). This change updates such approach so that each assembler method takes an operand size as a parameter, reducing duplication and making the code more concise and easier to integrate with the x64's `Inst` enum. * Introduction of a disassembler for testing purposes. As of this change, Winch generates the following code for the following test programs: ```wat (module (export "main" (func $main)) (func $main (result i32) (i32.const 10) (i32.const 20) i32.add )) ``` ```asm 0: 55 push rbp 1: 48 89 e5 mov rbp, rsp 4: b8 0a 00 00 00 mov eax, 0xa 9: 83 c0 14 add eax, 0x14 c: 5d pop rbp d: c3 ret ``` ```wat (module (export "main" (func $main)) (func $main (result i32) (local $foo i32) (local $bar i32) (i32.const 10) (local.set $foo) (i32.const 20) (local.set $bar) (local.get $foo) (local.get $bar) i32.add )) ``` ```asm 0: 55 push rbp 1: 48 89 e5 mov rbp, rsp 4: 48 83 ec 08 sub rsp, 8 8: 48 c7 04 24 00 00 00 00 mov qword ptr [rsp], 0 10: b8 0a 00 00 00 mov eax, 0xa 15: 89 44 24 04 mov dword ptr [rsp + 4], eax 19: b8 14 00 00 00 mov eax, 0x14 1e: 89 04 24 mov dword ptr [rsp], eax 21: 8b 04 24 mov eax, dword ptr [rsp] 24: 8b 4c 24 04 mov ecx, dword ptr [rsp + 4] 28: 01 c1 add ecx, eax 2a: 48 89 c8 mov rax, rcx 2d: 48 83 c4 08 add rsp, 8 31: 5d pop rbp 32: c3 ret ``` ```wat (module (export "main" (func $main)) (func $main (param i32) (param i32) (result i32) (local.get 0) (local.get 1) i32.add )) ``` ```asm 0: 55 push rbp 1: 48 89 e5 mov rbp, rsp 4: 48 83 ec 08 sub rsp, 8 8: 89 7c 24 04 mov dword ptr [rsp + 4], edi c: 89 34 24 mov dword ptr [rsp], esi f: 8b 04 24 mov eax, dword ptr [rsp] 12: 8b 4c 24 04 mov ecx, dword ptr [rsp + 4] 16: 01 c1 add ecx, eax 18: 48 89 c8 mov rax, rcx 1b: 48 83 c4 08 add rsp, 8 1f: 5d pop rbp 20: c3 ret ```		2 years ago
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src	winch: Use cranelift-codegen x64 backend for emission. (#5581)	2 years ago
Cargo.toml	Bump Wasmtime to 6.0.0 (#5521)	2 years ago
LICENSE	winch: Add license and update Cargo.toml (#5170)	2 years ago