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stage2: sparc64: Implement airSlicePtr

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Koakuma 2022-07-23 21:46:39 +07:00 committed by Andrew Kelley
parent ed546a7aad
commit 86dc982e74
1 changed files with 20 additions and 1 deletions
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21
src/arch/sparc64/CodeGen.zig
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@ -652,7 +652,7 @@ fn genBody(self: *Self, body: []const Air.Inst.Index) InnerError!void {
.field_parent_ptr => @panic("TODO try self.airFieldParentPtr(inst)"),
.switch_br => try self.airSwitch(inst),
.slice_ptr => @panic("TODO try self.airSlicePtr(inst)"),
.slice_ptr => try self.airSlicePtr(inst),
.slice_len => try self.airSliceLen(inst),
.ptr_slice_len_ptr => @panic("TODO try self.airPtrSliceLenPtr(inst)"),
@ -2249,6 +2249,25 @@ fn airSliceLen(self: *Self, inst: Air.Inst.Index) !void {
return self.finishAir(inst, result, .{ ty_op.operand, .none, .none });
}
fn airSlicePtr(self: *Self, inst: Air.Inst.Index) !void {
const ty_op = self.air.instructions.items(.data)[inst].ty_op;
const result: MCValue = if (self.liveness.isUnused(inst)) .dead else result: {
const mcv = try self.resolveInst(ty_op.operand);
switch (mcv) {
.dead, .unreach, .none => unreachable,
.register => unreachable, // a slice doesn't fit in one register
.stack_offset => |off| {
break :result MCValue{ .stack_offset = off };
},
.memory => |addr| {
break :result MCValue{ .memory = addr };
},
else => return self.fail("TODO implement slice_len for {}", .{mcv}),
}
};
return self.finishAir(inst, result, .{ ty_op.operand, .none, .none });
}
fn airStore(self: *Self, inst: Air.Inst.Index) !void {
const bin_op = self.air.instructions.items(.data)[inst].bin_op;
const ptr = try self.resolveInst(bin_op.lhs);