add a csky-unknown-linux-gnuabiv2 target #113658
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add a csky-unknown-linux-gnuabiv2 target
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 1,31 @@ | ||
| //see https://github.com/llvm/llvm-project/blob/main/llvm/lib/Target/CSKY/CSKYCallingConv.td | ||
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| use crate::abi::call::{ArgAbi, FnAbi}; | ||
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| fn classify_ret<Ty>(ret: &mut ArgAbi<'_, Ty>) { | ||
| if ret.layout.is_aggregate() || ret.layout.size.bits() > 64 { | ||
| ret.make_indirect(); | ||
| } else { | ||
| ret.extend_integer_width_to(32); | ||
| } | ||
| } | ||
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| fn classify_arg<Ty>(arg: &mut ArgAbi<'_, Ty>) { | ||
| if arg.layout.is_aggregate() || arg.layout.size.bits() > 64 { | ||
| arg.make_indirect(); | ||
| } else { | ||
| arg.extend_integer_width_to(32); | ||
| } | ||
| } | ||
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| pub fn compute_abi_info<Ty>(fn_abi: &mut FnAbi<'_, Ty>) { | ||
| if !fn_abi.ret.is_ignore() { | ||
| classify_ret(&mut fn_abi.ret); | ||
| } | ||
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| for arg in fn_abi.args.iter_mut() { | ||
| if arg.is_ignore() { | ||
| continue; | ||
| } | ||
| classify_arg(arg); | ||
| } | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 1,142 @@ | ||
| use super::{InlineAsmArch, InlineAsmType}; | ||
| use rustc_macros::HashStable_Generic; | ||
| use rustc_span::Symbol; | ||
| use std::fmt; | ||
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| def_reg_class! { | ||
| CSKY CSKYInlineAsmRegClass { | ||
| reg, | ||
| freg, | ||
| } | ||
| } | ||
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| impl CSKYInlineAsmRegClass { | ||
| pub fn valid_modifiers(self, _arch: super::InlineAsmArch) -> &'static [char] { | ||
| &[] | ||
| } | ||
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| pub fn suggest_class(self, _arch: InlineAsmArch, _ty: InlineAsmType) -> Option<Self> { | ||
| None | ||
| } | ||
|
|
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| pub fn suggest_modifier( | ||
| self, | ||
| _arch: InlineAsmArch, | ||
| _ty: InlineAsmType, | ||
| ) -> Option<(char, &'static str)> { | ||
| None | ||
| } | ||
|
|
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| pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> { | ||
| None | ||
| } | ||
|
|
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| pub fn supported_types( | ||
| self, | ||
| _arch: InlineAsmArch, | ||
| ) -> &'static [(InlineAsmType, Option<Symbol>)] { | ||
| match self { | ||
| Self::reg => types! { _: I8, I16, I32, I64, F32, F64; }, | ||
| Self::freg => types! { _: F32, F64; }, | ||
| } | ||
| } | ||
| } | ||
|
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| // The reserved registers are taken from <https://github.com/llvm/llvm-project/blob/main/llvm/lib/Target/CSKY/CSKYRegisterInfo.cpp#79> | ||
| def_regs! { | ||
| CSKY CSKYInlineAsmReg CSKYInlineAsmRegClass { | ||
| r0: reg = ["r0","a0"], | ||
| r1: reg = ["r1","a1"], | ||
| r2: reg = ["r2","a2"], | ||
| r3: reg = ["r3","a3"], | ||
| r4: reg = ["r4","l0"], | ||
| r5: reg = ["r5","l1"], | ||
| r6: reg = ["r6","l2"], | ||
| // r7: reg = ["r7","l3"], | ||
| // r8: reg = ["r8","l4"], | ||
| // r9: reg = ["r9","l5"], | ||
| // r10: reg = ["r10","l6"], | ||
| // r11: reg = ["r11","l7"], | ||
| // r12: reg = ["r12","t0"], | ||
| // r13: reg = ["r13","t1"], | ||
| // r14: reg = ["r14","sp"], | ||
| // r15: reg = ["r15","lr"], | ||
| // r16: reg = ["r16","l8"], | ||
| // r17: reg = ["r17","l9"], | ||
| // r18: reg = ["r18","t2"], | ||
| // r19: reg = ["r19","t3"], | ||
| // r20: reg = ["r20","t4"], | ||
| // r21: reg = ["r21","t5"], | ||
| // r22: reg = ["r22","t6"], | ||
| // r23: reg = ["r23","t7", "fp"], | ||
| // r24: reg = ["r24","t8", "sop"], | ||
| // r25: reg = ["r25","tp", "bsp"], | ||
| // r26: reg = ["r26"], | ||
| // r27: reg = ["r27"], | ||
| // r28: reg = ["r28","gb", "rgb", "rdb"], | ||
| // r29: reg = ["r29","tb", "rtb"], | ||
| // r30: reg = ["r30","svbr"], | ||
| // r31: reg = ["r31","tls"], | ||
| f0: freg = ["fr0","vr0"], | ||
| f1: freg = ["fr1","vr1"], | ||
| f2: freg = ["fr2","vr2"], | ||
| f3: freg = ["fr3","vr3"], | ||
| f4: freg = ["fr4","vr4"], | ||
| f5: freg = ["fr5","vr5"], | ||
| f6: freg = ["fr6","vr6"], | ||
| f7: freg = ["fr7","vr7"], | ||
| f8: freg = ["fr8","vr8"], | ||
| f9: freg = ["fr9","vr9"], | ||
| f10: freg = ["fr10","vr10"], | ||
| f11: freg = ["fr11","vr11"], | ||
| f12: freg = ["fr12","vr12"], | ||
| f13: freg = ["fr13","vr13"], | ||
| f14: freg = ["fr14","vr14"], | ||
| f15: freg = ["fr15","vr15"], | ||
| f16: freg = ["fr16","vr16"], | ||
| f17: freg = ["fr17","vr17"], | ||
| f18: freg = ["fr18","vr18"], | ||
| f19: freg = ["fr19","vr19"], | ||
| f20: freg = ["fr20","vr20"], | ||
| f21: freg = ["fr21","vr21"], | ||
| f22: freg = ["fr22","vr22"], | ||
| f23: freg = ["fr23","vr23"], | ||
| f24: freg = ["fr24","vr24"], | ||
| f25: freg = ["fr25","vr25"], | ||
| f26: freg = ["fr26","vr26"], | ||
| f27: freg = ["fr27","vr27"], | ||
| f28: freg = ["fr28","vr28"], | ||
| f29: freg = ["fr29","vr29"], | ||
| f30: freg = ["fr30","vr30"], | ||
| f31: freg = ["fr31","vr31"], | ||
| #error = ["r7", "l3"] => | ||
| "the base pointer cannot be used as an operand for inline asm", | ||
| #error = ["r8","l4"] => | ||
| "the frame pointer cannot be used as an operand for inline asm", | ||
| #error = ["r14","sp"] => | ||
| "the stack pointer cannot be used as an operand for inline asm", | ||
| #error = ["r15","lr"] => | ||
| "the link register cannot be used as an operand for inline asm", | ||
| #error = ["r31","tls"] => | ||
| "reserver for tls", | ||
| #error = ["r28", "gb", "rgb", "rdb"] => | ||
| "the global pointer cannot be used as an operand for inline asm", | ||
| #error = ["r9","l5", "r10","l6", "r11","l7", "r12","t0", "r13","t1"] => | ||
| "reserved (no E2)", | ||
| #error = ["r16","l8", "r17","l9", "r18","t2", "r19","t3", "r20","t4", "r21","t5", "r22","t6", "r23","t7", "fp", "r24","t8", "sop", "r25","tp", "bsp"] => | ||
| "reserved (no HighRegisters)", | ||
| #error = ["r26","r27","r29","tb", "rtb", "r30","svbr"] => | ||
| "reserved by the ABI", | ||
| } | ||
| } | ||
|
|
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| impl CSKYInlineAsmReg { | ||
| pub fn emit( | ||
| self, | ||
| out: &mut dyn fmt::Write, | ||
| _arch: InlineAsmArch, | ||
| _modifier: Option<char>, | ||
| ) -> fmt::Result { | ||
| out.write_str(self.name()) | ||
| } | ||
| } |
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Did you mean this as a TODO?
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No, it's finished here. just to indicate that this part of the code comes from here