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Basic inline assembly support for SPARC and SPARC64

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This commit is contained in:
Taiki Endo 2024-11-07 21:19:03 +09:00
parent c07aa1e171
commit 241f82ad91
14 changed files with 770 additions and 43 deletions
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14
compiler/rustc_codegen_llvm/src/asm.rs
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@ -268,6 +268,15 @@ impl<'ll, 'tcx> AsmBuilderMethods<'tcx> for Builder<'_, 'll, 'tcx> {
InlineAsmArch::S390x => {
constraints.push("~{cc}".to_string());
}
InlineAsmArch::Sparc | InlineAsmArch::Sparc64 => {
// In LLVM, ~{icc} represents icc and xcc in 64-bit code.
// https://github.com/llvm/llvm-project/blob/llvmorg-19.1.0/llvm/lib/Target/Sparc/SparcRegisterInfo.td#L64
constraints.push("~{icc}".to_string());
constraints.push("~{fcc0}".to_string());
constraints.push("~{fcc1}".to_string());
constraints.push("~{fcc2}".to_string());
constraints.push("~{fcc3}".to_string());
}
InlineAsmArch::SpirV => {}
InlineAsmArch::Wasm32 | InlineAsmArch::Wasm64 => {}
InlineAsmArch::Bpf => {}
@ -672,6 +681,8 @@ fn reg_to_llvm(reg: InlineAsmRegOrRegClass, layout: Option<&TyAndLayout<'_>>) ->
S390x(S390xInlineAsmRegClass::vreg | S390xInlineAsmRegClass::areg) => {
unreachable!("clobber-only")
}
Sparc(SparcInlineAsmRegClass::reg) => "r",
Sparc(SparcInlineAsmRegClass::yreg) => unreachable!("clobber-only"),
Msp430(Msp430InlineAsmRegClass::reg) => "r",
M68k(M68kInlineAsmRegClass::reg) => "r",
M68k(M68kInlineAsmRegClass::reg_addr) => "a",
@ -765,6 +776,7 @@ fn modifier_to_llvm(
},
Avr(_) => None,
S390x(_) => None,
Sparc(_) => None,
Msp430(_) => None,
SpirV(SpirVInlineAsmRegClass::reg) => bug!("LLVM backend does not support SPIR-V"),
M68k(_) => None,
@ -835,6 +847,8 @@ fn dummy_output_type<'ll>(cx: &CodegenCx<'ll, '_>, reg: InlineAsmRegClass) -> &'
S390x(S390xInlineAsmRegClass::vreg | S390xInlineAsmRegClass::areg) => {
unreachable!("clobber-only")
}
Sparc(SparcInlineAsmRegClass::reg) => cx.type_i32(),
Sparc(SparcInlineAsmRegClass::yreg) => unreachable!("clobber-only"),
Msp430(Msp430InlineAsmRegClass::reg) => cx.type_i16(),
M68k(M68kInlineAsmRegClass::reg) => cx.type_i32(),
M68k(M68kInlineAsmRegClass::reg_addr) => cx.type_i32(),