diff options
Diffstat (limited to 'src/arch/wasm/CodeGen.zig')
| -rw-r--r-- | src/arch/wasm/CodeGen.zig | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/src/arch/wasm/CodeGen.zig b/src/arch/wasm/CodeGen.zig index 0300c0b612..0415d8c90a 100644 --- a/src/arch/wasm/CodeGen.zig +++ b/src/arch/wasm/CodeGen.zig @@ -1886,6 +1886,23 @@ fn lowerParentPtr(self: *Self, ptr_val: Value, ptr_child_ty: Type) InnerError!WV .offset = @intCast(u32, offset), } }; }, + .opt_payload_ptr => { + const payload_ptr = ptr_val.castTag(.opt_payload_ptr).?.data; + const parent_ptr = try self.lowerParentPtr(payload_ptr.container_ptr, payload_ptr.container_ty); + var buf: Type.Payload.ElemType = undefined; + const payload_ty = payload_ptr.container_ty.optionalChild(&buf); + if (!payload_ty.hasRuntimeBitsIgnoreComptime() or payload_ty.isPtrLikeOptional()) { + return parent_ptr; + } + + const abi_size = payload_ptr.container_ty.abiSize(self.target); + const offset = abi_size - payload_ty.abiSize(self.target); + + return WValue{ .memory_offset = .{ + .pointer = parent_ptr.memory, + .offset = @intCast(u32, offset), + } }; + }, else => |tag| return self.fail("TODO: Implement lowerParentPtr for tag: {}", .{tag}), } } @@ -1948,7 +1965,7 @@ fn lowerConstant(self: *Self, val: Value, ty: Type) InnerError!WValue { else => unreachable, }, .Pointer => switch (val.tag()) { - .field_ptr, .elem_ptr => { + .field_ptr, .elem_ptr, .opt_payload_ptr => { return self.lowerParentPtr(val, ty.childType()); }, .int_u64, .one => return WValue{ .imm32 = @intCast(u32, val.toUnsignedInt(target)) }, |