Commit 71cd3466ec129404a9cc6679f25b0dde8623b094 | zig

author	Koakuma <koachan@protonmail.com> 2022-04-01 22:23:19+07:00
committer	Koakuma <koachan@protonmail.com> 2022-04-14 22:18:06+07:00
log	71cd3466ec129404a9cc6679f25b0dde8623b094
tree	e3323629e7f9ed640f60a576989e609996f5937f
parent	18c98eb4293ced51689ad67f15575afc120ceee1

2 files changed, 20 insertions(+), 4 deletions(-)

src/arch/sparcv9/CodeGen.zig+4-1

...	...	@@ -16,6 +16,8 @@ const Type = @import("../../type.zig").Type;
16	16	const GenerateSymbolError = @import("../../codegen.zig").GenerateSymbolError;
17	17	const FnResult = @import("../../codegen.zig").FnResult;
18	18	const DebugInfoOutput = @import("../../codegen.zig").DebugInfoOutput;
	19	const RegisterManagerFn = @import("../../register_manager.zig").RegisterManager;
	20	const RegisterManager = RegisterManagerFn(Self, Register, &abi.allocatable_regs);
19	21
20	22	const build_options = @import("build_options");
21	23
...	...	@@ -73,6 +75,8 @@ branch_stack: *std.ArrayList(Branch),
73	75	// Key is the block instruction
74	76	blocks: std.AutoHashMapUnmanaged(Air.Inst.Index, BlockData) = .{},
75	77
	78	register_manager: RegisterManager = .{},
	79
76	80	/// Maps offset to what is stored there.
77	81	stack: std.AutoHashMapUnmanaged(u32, StackAllocation) = .{},
78	82
...	...	@@ -380,7 +384,6 @@ fn resolveCallingConventionValues(self: *Self, fn_ty: Type, is_caller: bool) !Ca
380	384	return result;
381	385	}
382	386
383		/// Caller must call `CallMCValues.deinit`.
384	387	fn gen(self: *Self) !void {
385	388	const cc = self.fn_type.fnCallingConvention();
386	389	if (cc != .Naked) {

src/arch/sparcv9/abi.zig+16-3

...	...	@@ -1,9 +1,22 @@
1	1	const bits = @import("bits.zig");
2	2	const Register = bits.Register;
3	3
4		// Register windowing mechanism will take care of preserving registers
5		// so no need to do it manually
6		pub const callee_preserved_regs = [_]Register{};
	4	// There are no callee-preserved registers since the windowing
	5	// mechanism already takes care of them.
	6	// We still need to preserve %o0-%o5, %g1, %g4, and %g5 before calling
	7	// something, though, as those are shared with the callee and might be
	8	// thrashed by it.
	9	pub const caller_preserved_regs = [_]Register{ .o0, .o1, .o2, .o3, .o4, .o5, .g1, .g4, .g5 };
	10
	11	// Try to allocate i, l, o, then g sets of registers, in order of priority.
	12	pub const allocatable_regs = [_]Register{
	13	// zig fmt: off
	14	.@"i0", .@"i1", .@"i2", .@"i3", .@"i4", .@"i5",
	15	.l0, .l1, .l2, .l3, .l4, .l5, .l6, .l7,
	16	.o0, .o1, .o2, .o3, .o4, .o5,
	17	.g1, .g4, .g5,
	18	// zig fmt: on
	19	};
7	20
8	21	pub const c_abi_int_param_regs_caller_view = [_]Register{ .o0, .o1, .o2, .o3, .o4, .o5 };
9	22	pub const c_abi_int_param_regs_callee_view = [_]Register{ .@"i0", .@"i1", .@"i2", .@"i3", .@"i4", .@"i5" };