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Add support for BPF inline assembly

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This commit is contained in:
Alessandro Decina 2021-04-20 19:03:10 +10:00
parent 12ac719b99
commit b2a6967114
10 changed files with 176 additions and 3 deletions
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6
compiler/rustc_codegen_llvm/src/asm.rs
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@ -288,6 +288,7 @@ impl AsmBuilderMethods<'tcx> for Builder<'a, 'll, 'tcx> {
InlineAsmArch::Mips | InlineAsmArch::Mips64 => {}
InlineAsmArch::SpirV => {}
InlineAsmArch::Wasm32 => {}
InlineAsmArch::Bpf => {}
}
}
if !options.contains(InlineAsmOptions::NOMEM) {
@ -593,6 +594,8 @@ fn reg_to_llvm(reg: InlineAsmRegOrRegClass, layout: Option<&TyAndLayout<'tcx>>)
InlineAsmRegClass::X86(X86InlineAsmRegClass::zmm_reg) => "v",
InlineAsmRegClass::X86(X86InlineAsmRegClass::kreg) => "^Yk",
InlineAsmRegClass::Wasm(WasmInlineAsmRegClass::local) => "r",
InlineAsmRegClass::Bpf(BpfInlineAsmRegClass::reg) => "r",
InlineAsmRegClass::Bpf(BpfInlineAsmRegClass::wreg) => "w",
InlineAsmRegClass::SpirV(SpirVInlineAsmRegClass::reg) => {
bug!("LLVM backend does not support SPIR-V")
}
@ -661,6 +664,7 @@ fn modifier_to_llvm(
},
InlineAsmRegClass::X86(X86InlineAsmRegClass::kreg) => None,
InlineAsmRegClass::Wasm(WasmInlineAsmRegClass::local) => None,
InlineAsmRegClass::Bpf(_) => None,
InlineAsmRegClass::SpirV(SpirVInlineAsmRegClass::reg) => {
bug!("LLVM backend does not support SPIR-V")
}
@ -708,6 +712,8 @@ fn dummy_output_type(cx: &CodegenCx<'ll, 'tcx>, reg: InlineAsmRegClass) -> &'ll
| InlineAsmRegClass::X86(X86InlineAsmRegClass::zmm_reg) => cx.type_f32(),
InlineAsmRegClass::X86(X86InlineAsmRegClass::kreg) => cx.type_i16(),
InlineAsmRegClass::Wasm(WasmInlineAsmRegClass::local) => cx.type_i32(),
InlineAsmRegClass::Bpf(BpfInlineAsmRegClass::reg) => cx.type_i64(),
InlineAsmRegClass::Bpf(BpfInlineAsmRegClass::wreg) => cx.type_i32(),
InlineAsmRegClass::SpirV(SpirVInlineAsmRegClass::reg) => {
bug!("LLVM backend does not support SPIR-V")
}