diff options
Diffstat (limited to 'src/codegen')
| -rw-r--r-- | src/codegen/c.zig | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/src/codegen/c.zig b/src/codegen/c.zig index 56df9a86cb..b23b937e05 100644 --- a/src/codegen/c.zig +++ b/src/codegen/c.zig @@ -302,7 +302,11 @@ pub const DeclGen = struct { else => return dg.fail("TODO float types > 64 bits are not support in renderValue() as of now", .{}), } }, - + .Pointer => switch (dg.module.getTarget().cpu.arch.ptrBitWidth()) { + 32 => return writer.writeAll("(void *)0xaaaaaaaa"), + 64 => return writer.writeAll("(void *)0xaaaaaaaaaaaaaaaa"), + else => unreachable, + }, else => { // This should lower to 0xaa bytes in safe modes, and for unsafe modes should // lower to leaving variables uninitialized (that might need to be implemented @@ -685,6 +689,7 @@ pub const DeclGen = struct { var it = struct_obj.fields.iterator(); while (it.next()) |entry| { const field_ty = entry.value_ptr.ty; + if (!field_ty.hasCodeGenBits()) continue; const name: CValue = .{ .bytes = entry.key_ptr.* }; try buffer.append(' '); try dg.renderTypeAndName(buffer.writer(), field_ty, name, .Mut); @@ -1400,9 +1405,19 @@ fn airAlloc(f: *Function, inst: Air.Inst.Index) !CValue { const writer = f.object.writer(); const inst_ty = f.air.typeOfIndex(inst); - // First line: the variable used as data storage. const elem_type = inst_ty.elemType(); const mutability: Mutability = if (inst_ty.isConstPtr()) .Const else .Mut; + if (!elem_type.hasCodeGenBits()) { + const target = f.object.dg.module.getTarget(); + const literal = switch (target.cpu.arch.ptrBitWidth()) { + 32 => "(void *)0xaaaaaaaa", + 64 => "(void *)0xaaaaaaaaaaaaaaaa", + else => unreachable, + }; + return CValue{ .bytes = literal }; + } + + // First line: the variable used as data storage. const local = try f.allocLocal(elem_type, mutability); try writer.writeAll(";\n"); |