diff --git a/src/codegen.cpp b/src/codegen.cpp index 3f54c120b..0bcc21116 100644 --- a/src/codegen.cpp +++ b/src/codegen.cpp @@ -3166,6 +3166,10 @@ static LLVMValueRef ir_render_call(CodeGen *g, IrExecutable *executable, IrInstr return nullptr; } else if (first_arg_ret) { return instruction->tmp_ptr; + } else if (handle_is_ptr(src_return_type)) { + auto store_instr = LLVMBuildStore(g->builder, result, instruction->tmp_ptr); + LLVMSetAlignment(store_instr, LLVMGetAlignment(instruction->tmp_ptr)); + return instruction->tmp_ptr; } else { return result; } diff --git a/test/behavior.zig b/test/behavior.zig index 450dded56..21b1c597e 100644 --- a/test/behavior.zig +++ b/test/behavior.zig @@ -9,6 +9,7 @@ comptime { _ = @import("cases/bitcast.zig"); _ = @import("cases/bool.zig"); _ = @import("cases/bugs/1111.zig"); + _ = @import("cases/bugs/1230.zig"); _ = @import("cases/bugs/394.zig"); _ = @import("cases/bugs/655.zig"); _ = @import("cases/bugs/656.zig"); diff --git a/test/cases/bugs/1230.zig b/test/cases/bugs/1230.zig new file mode 100644 index 000000000..b782a77f0 --- /dev/null +++ b/test/cases/bugs/1230.zig @@ -0,0 +1,14 @@ +const assert = @import("std").debug.assert; + +const S = extern struct { + x: i32, +}; + +extern fn ret_struct() S { + return S{ .x = 42 }; +} + +test "extern return small struct (bug 1230)" { + const s = ret_struct(); + assert(s.x == 42); +}