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stage2: sparc64: Implement airArrayToSlice

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This commit is contained in:
Koakuma 2022-06-06 06:09:01 +07:00
parent f87dd285bb
commit f6eb83c91c
1 changed files with 20 additions and 1 deletions
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21
src/arch/sparc64/CodeGen.zig
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@ -593,7 +593,7 @@ fn genBody(self: *Self, body: []const Air.Inst.Index) InnerError!void {
.store => try self.airStore(inst),
.struct_field_ptr=> @panic("TODO try self.airStructFieldPtr(inst)"),
.struct_field_val=> try self.airStructFieldVal(inst),
.array_to_slice => @panic("TODO try self.airArrayToSlice(inst)"),
.array_to_slice => try self.airArrayToSlice(inst),
.int_to_float => @panic("TODO try self.airIntToFloat(inst)"),
.float_to_int => @panic("TODO try self.airFloatToInt(inst)"),
.cmpxchg_strong => @panic("TODO try self.airCmpxchg(inst)"),
@ -783,6 +783,25 @@ fn airAlloc(self: *Self, inst: Air.Inst.Index) !void {
return self.finishAir(inst, .{ .ptr_stack_offset = stack_offset }, .{ .none, .none, .none });
}
fn airArrayToSlice(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 ptr_ty = self.air.typeOf(ty_op.operand);
const ptr = try self.resolveInst(ty_op.operand);
const array_ty = ptr_ty.childType();
const array_len = @intCast(u32, array_ty.arrayLen());
const ptr_bits = self.target.cpu.arch.ptrBitWidth();
const ptr_bytes = @divExact(ptr_bits, 8);
const stack_offset = try self.allocMem(inst, ptr_bytes * 2, ptr_bytes * 2);
try self.genSetStack(ptr_ty, stack_offset, ptr);
try self.genSetStack(Type.initTag(.usize), stack_offset - ptr_bytes, .{ .immediate = array_len });
break :result MCValue{ .stack_offset = stack_offset };
};
return self.finishAir(inst, result, .{ ty_op.operand, .none, .none });
}
fn airAsm(self: *Self, inst: Air.Inst.Index) !void {
const ty_pl = self.air.instructions.items(.data)[inst].ty_pl;
const extra = self.air.extraData(Air.Asm, ty_pl.payload);