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+TODO list:
+
+Bugs:
+
+- fix macro substitution with nested definitions (ShangHongzhang)
+- FPU st(0) is left unclean (kwisatz haderach). Incompatible with
+  optimized gcc/msc code
+
+- constructors
+- cast bug (Peter Wang)
+- define incomplete type if defined several times (Peter Wang).
+- configure --cc=tcc (still one bug in libtcc1.c)
+- test binutils/gcc compile
+- tci patch + argument.
+- see -lxxx bug (Michael Charity).
+- see transparent union pb in /urs/include/sys/socket.h
+- precise behaviour of typeof with arrays ? (__put_user macro)
+  but should suffice for most cases)
+- handle '? x, y : z' in unsized variable initialization (',' is
+  considered incorrectly as separator in preparser)
+- transform functions to function pointers in function parameters
+  (net/ipv4/ip_output.c)
+- fix function pointer type display
+- check lcc test suite -> fix bitfield binary operations
+- check section alignment in C
+- fix invalid cast in comparison 'if (v == (int8_t)v)'
+- finish varargs.h support (gcc 3.2 testsuite issue)
+- fix static functions declared inside block
+- fix multiple unions init
+- sizeof, alignof, typeof can still generate code in some cases.
+- Fix the remaining libtcc memory leaks.
+- make libtcc fully reentrant (except for the compilation stage itself).
+
+Bound checking:
+
+- '-b' bug.
+- fix bound exit on RedHat 7.3
+- setjmp is not supported properly in bound checking.
+- fix bound check code with '&' on local variables (currently done
+  only for local arrays).
+- bound checking and float/long long/struct copy code. bound
+  checking and symbol + offset optimization
+
+Missing features:
+
+- disable-asm and disable-bcheck options
+- __builtin_expect()
+- improve '-E' option.
+- add '-MD' option
+- atexit (Nigel Horne)
+- packed attribute
+- C99: add variable size arrays (gcc 3.2 testsuite issue)
+- C99: add complex types (gcc 3.2 testsuite issue)
+- postfix compound literals (see 20010124-1.c)
+
+Optimizations:
+
+- suppress specific anonymous symbol handling
+- more parse optimizations (=even faster compilation)
+- memory alloc optimizations (=even faster compilation)
+- optimize VT_LOCAL + const
+- better local variables handling (needed for other targets)
+
+Not critical:
+
+- C99: fix multiple compound literals inits in blocks (ISOC99
+  normative example - only relevant when using gotos! -> must add
+  boolean variable to tell if compound literal was already
+  initialized).
+- add PowerPC or ARM code generator and improve codegen for RISC (need
+  to suppress VT_LOCAL and use a base register instead).
+- interactive mode / integrated debugger
+- fix preprocessor symbol redefinition
+- better constant opt (&&, ||, ?:)
+- add portable byte code generator and interpreter for other
+  unsupported architectures.
+- C++: variable declaration in for, minimal 'class' support.
+- win32: __intxx. use resolve for bchecked malloc et al.
+  check exception code (exception filter func).
+- handle void (__attribute__() *ptr)()
+
+Fixed (probably):
+
+- bug with defines:
+    #define spin_lock(lock) do { } while (0)
+    #define wq_spin_lock spin_lock
+    #define TEST() wq_spin_lock(a)
+- typedefs can be structure fields
+- see bugfixes.diff + improvement.diff from Daniel Glockner
+- long long constant evaluation
+- add alloca()
+- gcc '-E' option.
+- #include_next support for /usr/include/limits ?
+- function pointers/lvalues in ? : (linux kernel net/core/dev.c)
+- win32: add __stdcall, check GetModuleHandle for dlls.