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stage2: sparc64: Implement airSlice

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This commit is contained in:
Koakuma 2022-06-01 19:54:22 +07:00
parent 8b70abfcc6
commit 5d61f32887
1 changed files with 21 additions and 1 deletions
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22
src/arch/sparc64/CodeGen.zig
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@ -517,7 +517,7 @@ fn genBody(self: *Self, body: []const Air.Inst.Index) InnerError!void {
.shl_sat => @panic("TODO try self.airShlSat(inst)"),
.min => @panic("TODO try self.airMin(inst)"),
.max => @panic("TODO try self.airMax(inst)"),
.slice => @panic("TODO try self.airSlice(inst)"),
.slice => try self.airSlice(inst),
.sqrt,
.sin,
@ -1647,6 +1647,26 @@ fn airRetPtr(self: *Self, inst: Air.Inst.Index) !void {
return self.finishAir(inst, .{ .ptr_stack_offset = stack_offset }, .{ .none, .none, .none });
}
fn airSlice(self: *Self, inst: Air.Inst.Index) !void {
const ty_pl = self.air.instructions.items(.data)[inst].ty_pl;
const bin_op = self.air.extraData(Air.Bin, ty_pl.payload).data;
const result: MCValue = if (self.liveness.isUnused(inst)) .dead else result: {
const ptr = try self.resolveInst(bin_op.lhs);
const ptr_ty = self.air.typeOf(bin_op.lhs);
const len = try self.resolveInst(bin_op.rhs);
const len_ty = self.air.typeOf(bin_op.rhs);
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(len_ty, stack_offset - ptr_bytes, len);
break :result MCValue{ .stack_offset = stack_offset };
};
return self.finishAir(inst, result, .{ bin_op.lhs, bin_op.rhs, .none });
}
fn airSliceElemVal(self: *Self, inst: Air.Inst.Index) !void {
const is_volatile = false; // TODO
const bin_op = self.air.instructions.items(.data)[inst].bin_op;