diff options
Diffstat (limited to 'src/codegen/c.zig')
| -rw-r--r-- | src/codegen/c.zig | 28 |
1 files changed, 25 insertions, 3 deletions
diff --git a/src/codegen/c.zig b/src/codegen/c.zig index bc3e357827..2084b1e1ce 100644 --- a/src/codegen/c.zig +++ b/src/codegen/c.zig @@ -909,6 +909,12 @@ fn genBody(o: *Object, body: []const Air.Inst.Index) error{ AnalysisFail, OutOfM .switch_br => try airSwitchBr(o, inst), .wrap_optional => try airWrapOptional(o, inst), .struct_field_ptr => try airStructFieldPtr(o, inst), + + .struct_field_ptr_index_0 => try airStructFieldPtrIndex(o, inst, 0), + .struct_field_ptr_index_1 => try airStructFieldPtrIndex(o, inst, 1), + .struct_field_ptr_index_2 => try airStructFieldPtrIndex(o, inst, 2), + .struct_field_ptr_index_3 => try airStructFieldPtrIndex(o, inst, 3), + .struct_field_val => try airStructFieldVal(o, inst), .slice_ptr => try airSliceField(o, inst, ".ptr;\n"), .slice_len => try airSliceField(o, inst, ".len;\n"), @@ -1651,15 +1657,31 @@ fn airOptionalPayload(o: *Object, inst: Air.Inst.Index) !CValue { fn airStructFieldPtr(o: *Object, inst: Air.Inst.Index) !CValue { if (o.liveness.isUnused(inst)) - return CValue.none; + // TODO this @as is needed because of a stage1 bug + return @as(CValue, CValue.none); const ty_pl = o.air.instructions.items(.data)[inst].ty_pl; const extra = o.air.extraData(Air.StructField, ty_pl.payload).data; - const writer = o.writer(); const struct_ptr = try o.resolveInst(extra.struct_operand); const struct_ptr_ty = o.air.typeOf(extra.struct_operand); + return structFieldPtr(o, inst, struct_ptr_ty, struct_ptr, extra.field_index); +} + +fn airStructFieldPtrIndex(o: *Object, inst: Air.Inst.Index, index: u8) !CValue { + if (o.liveness.isUnused(inst)) + // TODO this @as is needed because of a stage1 bug + return @as(CValue, CValue.none); + + const ty_op = o.air.instructions.items(.data)[inst].ty_op; + const struct_ptr = try o.resolveInst(ty_op.operand); + const struct_ptr_ty = o.air.typeOf(ty_op.operand); + return structFieldPtr(o, inst, struct_ptr_ty, struct_ptr, index); +} + +fn structFieldPtr(o: *Object, inst: Air.Inst.Index, struct_ptr_ty: Type, struct_ptr: CValue, index: u32) !CValue { + const writer = o.writer(); const struct_obj = struct_ptr_ty.elemType().castTag(.@"struct").?.data; - const field_name = struct_obj.fields.keys()[extra.field_index]; + const field_name = struct_obj.fields.keys()[index]; const inst_ty = o.air.typeOfIndex(inst); const local = try o.allocLocal(inst_ty, .Const); |