authorgravatar for koachan@protonmail.comKoakuma <koachan@protonmail.com> 2022-05-16 23:05:10+07:00
committergravatar for koachan@protonmail.comKoakuma <koachan@protonmail.com> 2022-05-16 23:30:54+07:00
log26e3d36d74cb35b7de80f9b7e8499fd695dc6700
tree3056964b61f431dba8000de31154195fd763301b
parent8ea80fdf7a6ab963a9104b00c5f4364166734643

stage2: sparc64: Implement airSliceLen

1 files changed, 22 insertions(+), 1 deletions(-)

src/arch/sparc64/CodeGen.zig+22-1
...@@ -630,7 +630,7 @@ fn genBody(self: *Self, body: []const Air.Inst.Index) InnerError!void {...@@ -630,7 +630,7 @@ fn genBody(self: *Self, body: []const Air.Inst.Index) InnerError!void {
630630
631 .switch_br => try self.airSwitch(inst),631 .switch_br => try self.airSwitch(inst),
632 .slice_ptr => @panic("TODO try self.airSlicePtr(inst)"),632 .slice_ptr => @panic("TODO try self.airSlicePtr(inst)"),
633 .slice_len => @panic("TODO try self.airSliceLen(inst)"),633 .slice_len => try self.airSliceLen(inst),
634634
635 .ptr_slice_len_ptr => @panic("TODO try self.airPtrSliceLenPtr(inst)"),635 .ptr_slice_len_ptr => @panic("TODO try self.airPtrSliceLenPtr(inst)"),
636 .ptr_slice_ptr_ptr => @panic("TODO try self.airPtrSlicePtrPtr(inst)"),636 .ptr_slice_ptr_ptr => @panic("TODO try self.airPtrSlicePtrPtr(inst)"),
...@@ -1385,6 +1385,27 @@ fn airStore(self: *Self, inst: Air.Inst.Index) !void {...@@ -1385,6 +1385,27 @@ fn airStore(self: *Self, inst: Air.Inst.Index) !void {
1385 return self.finishAir(inst, .dead, .{ bin_op.lhs, bin_op.rhs, .none });1385 return self.finishAir(inst, .dead, .{ bin_op.lhs, bin_op.rhs, .none });
1386}1386}
13871387
1388fn airSliceLen(self: *Self, inst: Air.Inst.Index) !void {
1389 const ty_op = self.air.instructions.items(.data)[inst].ty_op;
1390 const result: MCValue = if (self.liveness.isUnused(inst)) .dead else result: {
1391 const ptr_bits = self.target.cpu.arch.ptrBitWidth();
1392 const ptr_bytes = @divExact(ptr_bits, 8);
1393 const mcv = try self.resolveInst(ty_op.operand);
1394 switch (mcv) {
1395 .dead, .unreach, .none => unreachable,
1396 .register => unreachable, // a slice doesn't fit in one register
1397 .stack_offset => |off| {
1398 break :result MCValue{ .stack_offset = off - ptr_bytes };
1399 },
1400 .memory => |addr| {
1401 break :result MCValue{ .memory = addr + ptr_bytes };
1402 },
1403 else => return self.fail("TODO implement slice_len for {}", .{mcv}),
1404 }
1405 };
1406 return self.finishAir(inst, result, .{ ty_op.operand, .none, .none });
1407}
1408
1388fn airSwitch(self: *Self, inst: Air.Inst.Index) !void {1409fn airSwitch(self: *Self, inst: Air.Inst.Index) !void {
1389 _ = self;1410 _ = self;
1390 _ = inst;1411 _ = inst;