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x64: implement aggregate_init for arrays

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Jakub Konka
2022-03-24 15:24:03 +01:00
parent 4e801c2783
commit 77352c5bea
1 changed files with 13 additions and 2 deletions
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15
src/arch/x86_64/CodeGen.zig
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@@ -5672,7 +5672,7 @@ fn airReduce(self: *Self, inst: Air.Inst.Index) !void {
fn airAggregateInit(self: *Self, inst: Air.Inst.Index) !void {
const result_ty = self.air.typeOfIndex(inst);
const len = result_ty.vectorLen();
const len = result_ty.arrayLen();
const ty_pl = self.air.instructions.items(.data)[inst].ty_pl;
const elements = @bitCast([]const Air.Inst.Ref, self.air.extra[ty_pl.payload..][0..len]);
const abi_size = @intCast(u32, result_ty.abiSize(self.target.*));
@@ -5692,7 +5692,18 @@ fn airAggregateInit(self: *Self, inst: Air.Inst.Index) !void {
}
break :res MCValue{ .stack_offset = stack_offset };
},
.Array => return self.fail("TODO implement aggregate_init for arrays", .{}),
.Array => {
const stack_offset = @intCast(i32, try self.allocMem(inst, abi_size, abi_align));
const elem_ty = result_ty.childType();
const elem_size = @intCast(u32, elem_ty.abiSize(self.target.*));
for (elements) |elem, elem_i| {
const elem_mcv = try self.resolveInst(elem);
const elem_off = @intCast(i32, elem_size * elem_i);
try self.genSetStack(elem_ty, stack_offset - elem_off, elem_mcv, .{});
}
break :res MCValue{ .stack_offset = stack_offset };
},
.Vector => return self.fail("TODO implement aggregate_init for vectors", .{}),
else => unreachable,
}