Commit f950d763a160d7ee333dde75ff61c9ac6597c803 | zig

author	Jacob G-W <jacoblevgw@gmail.com> 2021-11-12 18:10:13-05:00
committer	Jakub Konka <kubkon@jakubkonka.com> 2021-11-19 09:38:36+01:00
log	f950d763a160d7ee333dde75ff61c9ac6597c803
tree	e5f3b1dca3dbb9fda897f1807c1c1b0c39270e93
parent	6cf8a49bb0e5a6df3154aa7c41602ef21057ce50

2 files changed, 11 insertions(+), 12 deletions(-)

src/arch/x86_64/CodeGen.zig+2-2

...	...	@@ -1902,10 +1902,10 @@ fn airCall(self: *Self, inst: Air.Inst.Index) !void {
1902	1902	try self.register_manager.getReg(reg, null);
1903	1903	try self.genSetReg(arg_ty, reg, arg_mcv);
1904	1904	},
1905		.stack_offset => {
	1905	.stack_offset => \|off\| {
1906	1906	// Here we need to emit instructions like this:
1907	1907	// mov qword ptr [rsp + stack_offset], x
1908		return self.fail("TODO implement calling with parameters in memory", .{});
	1908	try self.genSetStack(arg_ty, off, arg_mcv);
1909	1909	},
1910	1910	.ptr_stack_offset => {
1911	1911	return self.fail("TODO implement calling with MCValue.ptr_stack_offset arg", .{});

src/arch/x86_64/bits.zig+9-10

...	...	@@ -84,15 +84,13 @@ pub const Register = enum(u7) {
84	84	/// Returns the index into `callee_preserved_regs`.
85	85	pub fn allocIndex(self: Register) ?u4 {
86	86	return switch (self) {
87		.rax, .eax, .ax, .al => 0,
88		.rcx, .ecx, .cx, .cl => 1,
89		.rdx, .edx, .dx, .dl => 2,
90		.rsi, .esi, .si => 3,
91		.rdi, .edi, .di => 4,
92		.r8, .r8d, .r8w, .r8b => 5,
93		.r9, .r9d, .r9w, .r9b => 6,
94		.r10, .r10d, .r10w, .r10b => 7,
95		.r11, .r11d, .r11w, .r11b => 8,
	87	.rcx, .ecx, .cx, .cl => 0,
	88	.rsi, .esi, .si => 1,
	89	.rdi, .edi, .di => 2,
	90	.r8, .r8d, .r8w, .r8b => 3,
	91	.r9, .r9d, .r9w, .r9b => 4,
	92	.r10, .r10d, .r10w, .r10b => 5,
	93	.r11, .r11d, .r11w, .r11b => 6,
96	94	else => null,
97	95	};
98	96	}
...	...	@@ -145,7 +143,8 @@ pub const Register = enum(u7) {
145	143	// zig fmt: on
146	144
147	145	/// These registers belong to the called function.
148		pub const callee_preserved_regs = [_]Register{ .rax, .rcx, .rdx, .rsi, .rdi, .r8, .r9, .r10, .r11 };
	146	/// TODO should the return_regs be in this array?
	147	pub const callee_preserved_regs = [_]Register{ .rcx, .rsi, .rdi, .r8, .r9, .r10, .r11 };
149	148	pub const c_abi_int_param_regs = [_]Register{ .rdi, .rsi, .rdx, .rcx, .r8, .r9 };
150	149	pub const c_abi_int_return_regs = [_]Register{ .rax, .rdx };
151	150