Bug 154 – invalid code generation on linux with custom allocators/deallocators + 'auto' doubts

The following code: tmp3.d: ---- import std.c.stdlib; class Foo { new (size_t sz) { return std.c.stdlib.malloc(sz); } delete(void* p) { if (p) std.c.stdlib.free(p); } } void main() { Foo f = new Foo; delete f; } ---- doesn't seem to like linux at all... h3@h3:~/coding> dmd tmp3.d gcc tmp3.o -o tmp3 -lphobos -lpthread -lm h3@h3:~/coding> ./tmp3 Illegal instruction h3@h3:~/coding> gdb tmp3 GNU gdb 6.3 Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions.Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i586-suse-linux"...Using host libthread_db library "/lib/tls/libthread_db.so.1". (gdb) r Starting program: /home/h3/coding/tmp3 [Thread debugging using libthread_db enabled] [New Thread 1075353280 (LWP 22608)] Program received signal SIGILL, Illegal instruction. [Switching to Thread 1075353280 (LWP 22608)] 0x0805c474 in _Class_8TypeInfo () (gdb) bt #0 0x0805c474 in _Class_8TypeInfo () #1 0x0804fc59 in _d_callfinalizer () #2 0x0804fa16 in _d_delclass () #3 0x0804a127 in _Dmain () #4 0x0804af03 in main () Adding an empty constructor ("this() {}") to the Foo class fixes the problem. It's also been reported that it runs fine on Windows. ---- By the way, using custom deallocators in conjunction with 'auto' classes seems to be problematic. The spec states "When an auto class reference goes out of scope, the destructor (if any) for it is automatically called. This holds true even if the scope was exited via a thrown exception.", yet it doesn't mention custom deallocators. When a class declares custom allocators and deallocators and an 'auto' instance of such class is created, its custom allocator is called, but the custom deallocator isn't. Is that the desired behaviour ? I hope not... Thanks, Tom

Fixed DMD 0.162

test cases: http://dstress.kuehne.cn/run/d/delete_14_A.d http://dstress.kuehne.cn/run/d/delete_14_B.d