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Merge pull request #2678 from cfallin/x64-fastcall

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x86-64 Windows fastcall ABI support.
This commit is contained in:
Chris Fallin
2021-03-05 10:46:47 -08:00
committed by GitHub
parent ccdf6ec0b1 6c94eb82aa
commit e41d882144
13 changed files with 997 additions and 475 deletions
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1
cranelift/codegen/src/isa/x64/inst/args.rs
View File

@@ -456,6 +456,7 @@ pub(crate) enum InstructionSet {
Popcnt,
Lzcnt,
BMI1,
#[allow(dead_code)] // never constructed (yet).
BMI2,
}

29
cranelift/codegen/src/isa/x64/inst/regs.rs
View File

@@ -23,11 +23,20 @@ use regalloc::{
};
use std::string::String;
// Hardware encodings for a few registers.
// Hardware encodings (note the special rax, rcx, rdx, rbx order).
pub const ENC_RAX: u8 = 0;
pub const ENC_RCX: u8 = 1;
pub const ENC_RDX: u8 = 2;
pub const ENC_RBX: u8 = 3;
pub const ENC_RSP: u8 = 4;
pub const ENC_RBP: u8 = 5;
pub const ENC_RSI: u8 = 6;
pub const ENC_RDI: u8 = 7;
pub const ENC_R8: u8 = 8;
pub const ENC_R9: u8 = 9;
pub const ENC_R10: u8 = 10;
pub const ENC_R11: u8 = 11;
pub const ENC_R12: u8 = 12;
pub const ENC_R13: u8 = 13;
pub const ENC_R14: u8 = 14;
@@ -38,31 +47,31 @@ fn gpr(enc: u8, index: u8) -> Reg {
}
pub(crate) fn rsi() -> Reg {
gpr(6, 16)
gpr(ENC_RSI, 16)
}
pub(crate) fn rdi() -> Reg {
gpr(7, 17)
gpr(ENC_RDI, 17)
}
pub(crate) fn rax() -> Reg {
gpr(0, 18)
gpr(ENC_RAX, 18)
}
pub(crate) fn rcx() -> Reg {
gpr(1, 19)
gpr(ENC_RCX, 19)
}
pub(crate) fn rdx() -> Reg {
gpr(2, 20)
gpr(ENC_RDX, 20)
}
pub(crate) fn r8() -> Reg {
gpr(8, 21)
gpr(ENC_R8, 21)
}
pub(crate) fn r9() -> Reg {
gpr(9, 22)
gpr(ENC_R9, 22)
}
pub(crate) fn r10() -> Reg {
gpr(10, 23)
gpr(ENC_R10, 23)
}
pub(crate) fn r11() -> Reg {
gpr(11, 24)
gpr(ENC_R11, 24)
}
pub(crate) fn r12() -> Reg {
gpr(ENC_R12, 25)