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Add initial asm!() support for PowerPC

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This includes GPRs and FPRs only
This commit is contained in:
Dr. Chat 2021-04-29 23:03:08 -05:00
parent 5c02926546
commit b1bb5d662c
6 changed files with 356 additions and 1 deletions
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25
compiler/rustc_target/src/asm/mod.rs
View file

@ -154,6 +154,7 @@ mod arm;
mod hexagon;
mod mips;
mod nvptx;
mod powerpc;
mod riscv;
mod spirv;
mod wasm;
@ -164,6 +165,7 @@ pub use arm::{ArmInlineAsmReg, ArmInlineAsmRegClass};
pub use hexagon::{HexagonInlineAsmReg, HexagonInlineAsmRegClass};
pub use mips::{MipsInlineAsmReg, MipsInlineAsmRegClass};
pub use nvptx::{NvptxInlineAsmReg, NvptxInlineAsmRegClass};
pub use powerpc::{PowerPCInlineAsmReg, PowerPCInlineAsmRegClass};
pub use riscv::{RiscVInlineAsmReg, RiscVInlineAsmRegClass};
pub use spirv::{SpirVInlineAsmReg, SpirVInlineAsmRegClass};
pub use wasm::{WasmInlineAsmReg, WasmInlineAsmRegClass};
@ -181,6 +183,7 @@ pub enum InlineAsmArch {
Hexagon,
Mips,
Mips64,
PowerPC,
SpirV,
Wasm32,
}
@ -197,6 +200,7 @@ impl FromStr for InlineAsmArch {
"riscv32" => Ok(Self::RiscV32),
"riscv64" => Ok(Self::RiscV64),
"nvptx64" => Ok(Self::Nvptx64),
"powerpc" => Ok(Self::PowerPC),
"hexagon" => Ok(Self::Hexagon),
"mips" => Ok(Self::Mips),
"mips64" => Ok(Self::Mips64),
@ -225,6 +229,7 @@ pub enum InlineAsmReg {
AArch64(AArch64InlineAsmReg),
RiscV(RiscVInlineAsmReg),
Nvptx(NvptxInlineAsmReg),
PowerPC(PowerPCInlineAsmReg),
Hexagon(HexagonInlineAsmReg),
Mips(MipsInlineAsmReg),
SpirV(SpirVInlineAsmReg),
@ -240,6 +245,7 @@ impl InlineAsmReg {
Self::Arm(r) => r.name(),
Self::AArch64(r) => r.name(),
Self::RiscV(r) => r.name(),
Self::PowerPC(r) => r.name(),
Self::Hexagon(r) => r.name(),
Self::Mips(r) => r.name(),
Self::Err => "<reg>",
@ -252,6 +258,7 @@ impl InlineAsmReg {
Self::Arm(r) => InlineAsmRegClass::Arm(r.reg_class()),
Self::AArch64(r) => InlineAsmRegClass::AArch64(r.reg_class()),
Self::RiscV(r) => InlineAsmRegClass::RiscV(r.reg_class()),
Self::PowerPC(r) => InlineAsmRegClass::PowerPC(r.reg_class()),
Self::Hexagon(r) => InlineAsmRegClass::Hexagon(r.reg_class()),
Self::Mips(r) => InlineAsmRegClass::Mips(r.reg_class()),
Self::Err => InlineAsmRegClass::Err,
@ -283,6 +290,9 @@ impl InlineAsmReg {
InlineAsmArch::Nvptx64 => {
Self::Nvptx(NvptxInlineAsmReg::parse(arch, has_feature, target, &name)?)
}
InlineAsmArch::PowerPC => {
Self::PowerPC(PowerPCInlineAsmReg::parse(arch, has_feature, target, &name)?)
}
InlineAsmArch::Hexagon => {
Self::Hexagon(HexagonInlineAsmReg::parse(arch, has_feature, target, &name)?)
}
@ -311,6 +321,7 @@ impl InlineAsmReg {
Self::Arm(r) => r.emit(out, arch, modifier),
Self::AArch64(r) => r.emit(out, arch, modifier),
Self::RiscV(r) => r.emit(out, arch, modifier),
Self::PowerPC(r) => r.emit(out, arch, modifier),
Self::Hexagon(r) => r.emit(out, arch, modifier),
Self::Mips(r) => r.emit(out, arch, modifier),
Self::Err => unreachable!("Use of InlineAsmReg::Err"),
@ -323,6 +334,7 @@ impl InlineAsmReg {
Self::Arm(r) => r.overlapping_regs(|r| cb(Self::Arm(r))),
Self::AArch64(_) => cb(self),
Self::RiscV(_) => cb(self),
Self::PowerPC(_) => cb(self),
Self::Hexagon(r) => r.overlapping_regs(|r| cb(Self::Hexagon(r))),
Self::Mips(_) => cb(self),
Self::Err => unreachable!("Use of InlineAsmReg::Err"),
@ -348,6 +360,7 @@ pub enum InlineAsmRegClass {
AArch64(AArch64InlineAsmRegClass),
RiscV(RiscVInlineAsmRegClass),
Nvptx(NvptxInlineAsmRegClass),
PowerPC(PowerPCInlineAsmRegClass),
Hexagon(HexagonInlineAsmRegClass),
Mips(MipsInlineAsmRegClass),
SpirV(SpirVInlineAsmRegClass),
@ -364,6 +377,7 @@ impl InlineAsmRegClass {
Self::AArch64(r) => r.name(),
Self::RiscV(r) => r.name(),
Self::Nvptx(r) => r.name(),
Self::PowerPC(r) => r.name(),
Self::Hexagon(r) => r.name(),
Self::Mips(r) => r.name(),
Self::SpirV(r) => r.name(),
@ -382,6 +396,7 @@ impl InlineAsmRegClass {
Self::AArch64(r) => r.suggest_class(arch, ty).map(InlineAsmRegClass::AArch64),
Self::RiscV(r) => r.suggest_class(arch, ty).map(InlineAsmRegClass::RiscV),
Self::Nvptx(r) => r.suggest_class(arch, ty).map(InlineAsmRegClass::Nvptx),
Self::PowerPC(r) => r.suggest_class(arch, ty).map(InlineAsmRegClass::PowerPC),
Self::Hexagon(r) => r.suggest_class(arch, ty).map(InlineAsmRegClass::Hexagon),
Self::Mips(r) => r.suggest_class(arch, ty).map(InlineAsmRegClass::Mips),
Self::SpirV(r) => r.suggest_class(arch, ty).map(InlineAsmRegClass::SpirV),
@ -407,6 +422,7 @@ impl InlineAsmRegClass {
Self::AArch64(r) => r.suggest_modifier(arch, ty),
Self::RiscV(r) => r.suggest_modifier(arch, ty),
Self::Nvptx(r) => r.suggest_modifier(arch, ty),
Self::PowerPC(r) => r.suggest_modifier(arch, ty),
Self::Hexagon(r) => r.suggest_modifier(arch, ty),
Self::Mips(r) => r.suggest_modifier(arch, ty),
Self::SpirV(r) => r.suggest_modifier(arch, ty),
@ -428,6 +444,7 @@ impl InlineAsmRegClass {
Self::AArch64(r) => r.default_modifier(arch),
Self::RiscV(r) => r.default_modifier(arch),
Self::Nvptx(r) => r.default_modifier(arch),
Self::PowerPC(r) => r.default_modifier(arch),
Self::Hexagon(r) => r.default_modifier(arch),
Self::Mips(r) => r.default_modifier(arch),
Self::SpirV(r) => r.default_modifier(arch),
@ -448,6 +465,7 @@ impl InlineAsmRegClass {
Self::AArch64(r) => r.supported_types(arch),
Self::RiscV(r) => r.supported_types(arch),
Self::Nvptx(r) => r.supported_types(arch),
Self::PowerPC(r) => r.supported_types(arch),
Self::Hexagon(r) => r.supported_types(arch),
Self::Mips(r) => r.supported_types(arch),
Self::SpirV(r) => r.supported_types(arch),
@ -467,6 +485,7 @@ impl InlineAsmRegClass {
Self::RiscV(RiscVInlineAsmRegClass::parse(arch, name)?)
}
InlineAsmArch::Nvptx64 => Self::Nvptx(NvptxInlineAsmRegClass::parse(arch, name)?),
InlineAsmArch::PowerPC => Self::PowerPC(PowerPCInlineAsmRegClass::parse(arch, name)?),
InlineAsmArch::Hexagon => Self::Hexagon(HexagonInlineAsmRegClass::parse(arch, name)?),
InlineAsmArch::Mips | InlineAsmArch::Mips64 => {
Self::Mips(MipsInlineAsmRegClass::parse(arch, name)?)
@ -485,6 +504,7 @@ impl InlineAsmRegClass {
Self::AArch64(r) => r.valid_modifiers(arch),
Self::RiscV(r) => r.valid_modifiers(arch),
Self::Nvptx(r) => r.valid_modifiers(arch),
Self::PowerPC(r) => r.valid_modifiers(arch),
Self::Hexagon(r) => r.valid_modifiers(arch),
Self::Mips(r) => r.valid_modifiers(arch),
Self::SpirV(r) => r.valid_modifiers(arch),
@ -633,6 +653,11 @@ pub fn allocatable_registers(
nvptx::fill_reg_map(arch, has_feature, target, &mut map);
map
}
InlineAsmArch::PowerPC => {
let mut map = powerpc::regclass_map();
powerpc::fill_reg_map(arch, has_feature, target, &mut map);
map
}
InlineAsmArch::Hexagon => {
let mut map = hexagon::regclass_map();
hexagon::fill_reg_map(arch, has_feature, target, &mut map);

146
compiler/rustc_target/src/asm/powerpc.rs Normal file
View file

@ -0,0 +1,146 @@
use super::{InlineAsmArch, InlineAsmType};
use rustc_macros::HashStable_Generic;
use std::fmt;
def_reg_class! {
PowerPC PowerPCInlineAsmRegClass {
reg,
reg_nonzero,
freg,
}
}
impl PowerPCInlineAsmRegClass {
pub fn valid_modifiers(self, _arch: super::InlineAsmArch) -> &'static [char] {
&[]
}
pub fn suggest_class(self, _arch: InlineAsmArch, _ty: InlineAsmType) -> Option<Self> {
None
}
pub fn suggest_modifier(
self,
_arch: InlineAsmArch,
_ty: InlineAsmType,
) -> Option<(char, &'static str)> {
None
}
pub fn default_modifier(self, _arch: InlineAsmArch) -> Option<(char, &'static str)> {
None
}
pub fn supported_types(
self,
_arch: InlineAsmArch,
) -> &'static [(InlineAsmType, Option<&'static str>)] {
match self {
Self::reg | Self::reg_nonzero => types! { _: I8, I16, I32; },
Self::freg => types! { _: F32, F64; },
}
}
}
def_regs! {
PowerPC PowerPCInlineAsmReg PowerPCInlineAsmRegClass {
r0: reg = ["r0", "0"],
r3: reg, reg_nonzero = ["r3", "3"],
r4: reg, reg_nonzero = ["r4", "4"],
r5: reg, reg_nonzero = ["r5", "5"],
r6: reg, reg_nonzero = ["r6", "6"],
r7: reg, reg_nonzero = ["r7", "7"],
r8: reg, reg_nonzero = ["r8", "8"],
r9: reg, reg_nonzero = ["r9", "9"],
r10: reg, reg_nonzero = ["r10", "10"],
r11: reg, reg_nonzero = ["r11", "11"],
r12: reg, reg_nonzero = ["r12", "12"],
r14: reg, reg_nonzero = ["r14", "14"],
r15: reg, reg_nonzero = ["r15", "15"],
r16: reg, reg_nonzero = ["r16", "16"],
r17: reg, reg_nonzero = ["r17", "17"],
r18: reg, reg_nonzero = ["r18", "18"],
r19: reg, reg_nonzero = ["r19", "19"],
r20: reg, reg_nonzero = ["r20", "20"],
r21: reg, reg_nonzero = ["r21", "21"],
r22: reg, reg_nonzero = ["r22", "22"],
r23: reg, reg_nonzero = ["r23", "23"],
r24: reg, reg_nonzero = ["r24", "24"],
r25: reg, reg_nonzero = ["r25", "25"],
r26: reg, reg_nonzero = ["r26", "26"],
r27: reg, reg_nonzero = ["r27", "27"],
r28: reg, reg_nonzero = ["r28", "28"],
f0: freg = ["f0", "fr0"],
f1: freg = ["f1", "fr1"],
f2: freg = ["f2", "fr2"],
f3: freg = ["f3", "fr3"],
f4: freg = ["f4", "fr4"],
f5: freg = ["f5", "fr5"],
f6: freg = ["f6", "fr6"],
f7: freg = ["f7", "fr7"],
f8: freg = ["f8", "fr8"],
f9: freg = ["f9", "fr9"],
f10: freg = ["f10", "fr10"],
f11: freg = ["f11", "fr11"],
f12: freg = ["f12", "fr12"],
f13: freg = ["f13", "fr13"],
f14: freg = ["f14", "fr14"],
f15: freg = ["f15", "fr15"],
f16: freg = ["f16", "fr16"],
f17: freg = ["f17", "fr17"],
f18: freg = ["f18", "fr18"],
f19: freg = ["f19", "fr19"],
f20: freg = ["f20", "fr20"],
f21: freg = ["f21", "fr21"],
f22: freg = ["f22", "fr22"],
f23: freg = ["f23", "fr23"],
f24: freg = ["f24", "fr24"],
f25: freg = ["f25", "fr25"],
f26: freg = ["f26", "fr26"],
f27: freg = ["f27", "fr27"],
f28: freg = ["f28", "fr28"],
f29: freg = ["f29", "fr29"],
f30: freg = ["f30", "fr30"],
f31: freg = ["f31", "fr31"],
#error = ["r1", "1", "sp"] =>
"the stack pointer cannot be used as an operand for inline asm",
#error = ["r2", "2"] =>
"r2 is a system reserved register and cannot be used as an operand for inline asm",
#error = ["r13", "13"] =>
"r13 is a system reserved register and cannot be used as an operand for inline asm",
#error = ["r29", "29"] =>
"r29 is used internally by LLVM and cannot be used as an operand for inline asm",
#error = ["r30", "30"] =>
"r30 is used internally by LLVM and cannot be used as an operand for inline asm",
#error = ["r31", "31", "fp"] =>
"the frame pointer cannot be used as an operand for inline asm",
#error = ["lr"] =>
"the link register cannot be used as an operand for inline asm",
#error = ["ctr"] =>
"the counter register cannot be used as an operand for inline asm",
#error = ["vrsave"] =>
"the vrsave register cannot be used as an operand for inline asm",
}
}
impl PowerPCInlineAsmReg {
pub fn emit(
self,
out: &mut dyn fmt::Write,
_arch: InlineAsmArch,
_modifier: Option<char>,
) -> fmt::Result {
// Strip off the leading prefix.
if self as u32 <= Self::r28 as u32 {
let index = self as u32 - Self::r28 as u32;
write!(out, "{}", index)
} else if self as u32 >= Self::f0 as u32 && self as u32 <= Self::f31 as u32 {
let index = self as u32 - Self::f31 as u32;
write!(out, "{}", index)
} else {
unreachable!()
}
}
pub fn overlapping_regs(self, mut _cb: impl FnMut(PowerPCInlineAsmReg)) {}
}