2002-07-18 Dietmar Maurer <dietmar@ximian.com>

[mono.git] / mono / jit / ChangeLog

2002-07-18  Dietmar Maurer  <dietmar@ximian.com>

        * exception.c (arch_handle_exception): removed duplicated code,
        added support for exception filters

        * jit.c (mono_jit_compile_method): support exception filters

2002-07-17  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_analyze_stack CEE_DIV): added fix from Zoltan Varga
        (bug #27423)
        * jit.c: s/ISSTRUCT/MONO_TYPE_ISSTRUCT/ 

        * helpers.c (mono_map_ldind_type): added suggested changes from
        Zoltan Varga (support MONO_TYPE_U), variou 64bit fixes

        * jit.c (mono_analyze_stack): remove the vtype pointer from the
        stack (fix bug #27420)

2002-07-16  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg (CALL_VOID): fix bug #27751
        (CONV_R_UN) use reg2 instead of reg1 for the negative check /fix bug 27849.

        * jit.c (mono_analyze_stack): adjust valuetype size for pinvoke calls

i2002-07-11  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg (freg): new rule freg: CALL_R8 (this, reg)

2002-07-10  Dietmar Maurer  <dietmar@ximian.com>

        * emit-x86.c (arch_emit_prologue): added code to save LMF

2002-07-04  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg (LOCALLOC): added fix from Zoltan Varga (for bug #27396) 

2002-07-05  Martin Baulig  <martin@gnome.org>

        * debug.c (mono_debug_add_method): Fix a bug in the `begin_scope' and
        `end_scope' calculations when linear scan register allocation is disabled.

2002-07-02  Gonzalo Paniagua Javier <gonzalo@ximian.com>

        * mono.c: removed the "RESULT: X" message.

2002-07-01  Dietmar Maurer <dietmar@ximian.com>

        * exception.c (arch_get_call_finally): restore caller saved
        register used by global reg. allocation when calling finally
        handlers (fixes bug #24943).

2002-07-01  Dick Porter  <dick@ximian.com>

        * jit.c (mono_jit_exec): Removed unneeded argument to
        mono_runtime_run_main()

2002-06-28  Martin Baulig  <martin@gnome.org>

        * debug.c (debug_generate_method_lines, mono_debug_add_method): Make methods
        start on the nop instruction to make single-stepping into an already-JITed
        method work.

2002-06-26  Martin Baulig  <martin@gnome.org>

        * debug.c (mono_debug_source_location_from_address): Added
        `guint32 *line_number' argument.  If it's not NULL, store the line number
        there and return the file name without the line number.

        * exception.c (ves_icall_get_trace): Fill in `sf->filename' and `sf->line'.
        (ves_icall_get_frame_info): Likewise.

2002-06-25  Dick Porter  <dick@ximian.com>

        * jit.c (mono_jit_exec): Pass the assembly to mono_runtime_run_main

2002-06-22  Martin Baulig  <martin@gnome.org>

        * debug.c (mono_debug_source_location_from_address): Small fix, an
        unsigned number can never be smaller than zero, make that check
        actually work.

2002-06-19  Dietmar Maurer  <dietmar@ximian.com>

        * exception.c (ves_icall_get_trace): new method to get the stack
        trace from a Exception.

2002-06-18  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (check_inlining): do not inline functions containing 
        calls to stack query functions

        * exception.c (ves_icall_get_frame_info): impl.

Tue Jun 18 10:21:19 CEST 2002 Paolo Molaro <lupus@ximian.com>

        * invoke.c: marshal simple arrays correctly.

2002-06-17  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: added inlined versions of Math.Sin, Math.Cos, Math.Sqrt

        * jit.c (mono_analyze_stack): impl. STARG
        (mono_analyze_stack): impl. LDARGA

        * exception.c (arch_handle_exception): correctly restore register
        values when unwinding the stack (fixes bug 25698)

2002-06-09  Martin Baulig  <martin@gnome.org>

        * debug.c (mono_debug_open_image): For MONO_DEBUG_FORMAT_DWARF2_PLUS,
        the `%s-debug.s' file is in the same directory than its assembly.

Sat Jun 1 13:24:01 CEST 2002 Paolo Molaro <lupus@ximian.com>

        * message.c, emit-x86.c: kill warnings.

2002-05-31  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: buf fix in REMOTE_STIND_OBJ
        (mono_ldvirtftn): impl.
        (mono_ldintftn): impl.
        (mono_ldftn): impl.

Fri May 31 13:26:56 CEST 2002 Paolo Molaro <lupus@ximian.com>

        * mono.c: added --config command line option.

Fri May 31 12:34:52 CEST 2002 Paolo Molaro <lupus@ximian.com>

        * jit.c, jit.h: collect statistics about the number of basic blocks.

2002-05-31  Martin Baulig  <martin@gnome.org>

        * debug.c (mono_debug_address_from_il_offset): New public function.
        (mono_debug_add_method): Improved local variable info: correctly handle
        variables in registers and their start/end scopes.

2002-05-30  Martin Baulig  <martin@gnome.org>

        * debug-dwarf2.c (dwarf2_write_string): Use "0x%lx" as fprintf() format,
        not "%p" which seems to be broken on Windows/mingw32.

2002-05-30  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg (reg): bug fix in LOCALLOC

        * mono.c (main): new switch --nointrinsic to disable memcpy opt.

        * x86.brg: added block copy/init optimizations from 
        Serge (serge@wildwestsoftware.com)
 
Thu May 30 14:13:12 CEST 2002 Paolo Molaro <lupus@ximian.com>

        * invoke.cs: lookup P/Invoke method address only when needed.

2002-05-29  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: bug fix in REMOTE_STIND_OBJ

        * invoke.c (arch_create_native_wrapper): handle pointers to value types

        * helpers.h: use mono_ prefix for all functions

        * jit.c (mono_analyze_stack): fixed SIZEOF

        * x86.brg: impl. LOCALLOC, INITBLK

2002-05-28  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: impl. CKFINITE 

        * jit.c (mono_analyze_stack): impl. CEE_CALLI

        * x86.brg (JMP): impl. JMP opcode

2002-05-27  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_cfg_new): reserve additional space to store ESP when
        calling finally handlers.

        * exception.c (arch_get_call_finally): save ESP before calling
        finally handler.

        * helpers.c (map_arg_type): move some generic helper function into
        this file.

        * mono.c (usage): new option --breakonex 

        * exception.c (arch_exc_is_caught): only return FALSE if really
        unhandled.

        * jit.c (mono_thread_abort): free jit_tls

2002-05-24  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg (stmt): use memmove to cope with overlapping
        blocks. This is not required by the specs, so we can remove it
        later if it turns out to be too slow (and use memcpy).

        * jit.c (mono_analyze_stack): moved const. folding from x86.brg

        * x86.brg: CPBLK impl.

        * emit-x86.c (tree_emit): modified to support 3 nonterminals per
        rule (used for CPBLK).

Thu May 23 18:43:07 CEST 2002 Paolo Molaro <lupus@ximian.com>

        * mono.c: remove generated code from hash when benchmarking/testing
        method compilation.
        * invoke.cs: special case string ctors.

2002-05-23  Dietmar Maurer  <dietmar@ximian.com>

        * *.c: code cleanups - tried to separate architecture dependent things. 

2002-05-23  Martin Baulig  <martin@gnome.org>

        * debug.c (mono_debug_open): Don't call mono_debug_add_image().
        (mono_debug_write_symbols): Only recreate the symbol file if
        necessary.

        * debug-private.h (MonoDebugHandle): Added `dirty' flag.

        * mono.c (main): Call mono_debug_add_image() here.

        * jit.c (mono_thread_abort): If we have debugging support, call
        mono_debug_make_symbols() and G_BREAKPOINT().

        * exception.c (arch_handle_exception): Don't G_BREAKPOINT() if we get
        an unhandled exception.

2002-05-23  Dietmar Maurer  <dietmar@ximian.com>

        * delegate.c: move the thread pool to metadata/threadpool.c, code
        cleanup.

2002-05-22  Dietmar Maurer  <dietmar@ximian.com>

        * exception.c (arch_exc_is_catched): impl. MS like exception
        handling (added a check for unhandled exceptions)

2002-05-22  Martin Baulig  <martin@gnome.org>

        * debug-dwarf2-plus.c (mono_debug_open_assembly_dwarf2_plus): Only run
        the assembler if necessary, ie. the assembler file is newer than the
        symbol file or the symbol file does not exist.

        * debug.c: Added "update_on_exit" argument to recreate the symbol file
        when the JIT exists.

        * debug-dwarf2.c: Produce assembler code which is free of comments and
        extra whitespaces so that it's suitable for `as -f'.

2002-05-22  Martin Baulig  <martin@gnome.org>

        * debug-dwarf2.c (dwarf2_write_section_end): Removed.  This is not needed
        and not supported by all assemblers.
        (dwarf2_write_2byte): Use ".word" instead of ".2byte" since ".2byte" is a
        GNU extension.

        * mono.c (--debug): Small fix in the argument parsing.

2002-05-22  Martin Baulig  <martin@gnome.org>

        * debug.c: Added "dont_assemble" and "dont_precompile" argument for dwarf-plus.

        * mono.c: Applied patch from Miguel:
        (--debug): This is now a `--debug=[FORMAT]' argument where FORMAT defaults
        to dwarf-plus.

2002-05-21  Martin Baulig  <martin@gnome.org>

        * debug.c (mono_debug_source_location_from_address): Added support for the
        dwarf2-plus format.

2002-05-21  Martin Baulig  <martin@gnome.org>

        * debug.c (mono_debug_source_location_from_address): New function.
        (mono_debug_il_offset_from_address): New function.

        * exception.c (arch_handle_exception): If we have debugging support, include
        information about the source location and IL offset in the stack trace.

2002-05-21  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_analyze_stack): LDARG uses 16bit argument (fix bug
        #25058)  

        * x86.brg (stmt): removed unnecessary assertion

        * jit.c (check_inlining):  we cant inline throw instructions
        (because it breaks some basic block requirements)

2002-05-21  Martin Baulig  <martin@gnome.org>

        * debug-private.h (MonoDebugFlags): New enum typedef.

        * debug.c (mono_debug_open): Added a few useful arguments.  See the manpage
        for details.

2002-05-21  Martin Baulig  <martin@gnome.org>

        * debug.c (mono_debug_open_file): Renamed to mono_debug_open(), now takes
        a `MonoAssembly *' argument instead of a `char *filename' one.  Also added
        `const char **args' argument.

        * mono.c (mono_jit_assembly): Renamed to mono_jit_compile_image(), added
        `int verbose' argument and made it public.
        (mono_jit_compile_class): New public function,  moved the code to compile
        all methods in a class here from main().
        (--compile): The argument can now also be an image (in `@imagename' format).
        Updated documentation for this command line argument.
        (--precompile): New command line argument to precompile an image/class/method
        before executing the main app.  This argument can be given multiple times.
        (--break): Renamed the "--debug" command line argument to "--break".
        (--debug): New command line argument to specify the debugging format.
        (--stabs, --dwarf, --dwarf-plus): Removed, obsoleted by "--debug".
        (--debug-args): New command line argument.  This is a comma-separated list of
        additional arguments for the symbol writer.
        (usage): Beautified the help text a bit.

        * debug-dwarf2-plus.c (mono_debug_open_assembly_dwarf2_plus): Use the new
        public mono_jit_compile_image() function rather than duplication this
        functionality here.

2002-05-21  Martin Baulig  <martin@gnome.org>

        * debug-dwarf2-plus.c: This is now working again :-)

        * debug.c (mono_debug_open_file): When using MONO_DEBUG_FORMAT_DWARF2_PLUS,
        we create two MonoDebugHandles: one for MONO_DEBUG_FORMAT_DWARF2_PLUS and
        one for the fallback MONO_DEBUG_FORMAT_DWARF2.

2002-05-21  Martin Baulig  <martin@gnome.org>

        * jit.c (mono_debug_handle): Removed this global variable.

        * debug.c (mono_debug_close): Removed.
        (mono_debug_cleanup): New global function.
        (mono_debug_add_image): New global function.
        (mono_debug_handle_from_class): New global function.
        (mono_debug_write_symbols): New global function.
        (mono_debug_add_type): Removed `MonoDebugHandle *' argument.
        (mono_debug_add_method): Likewise.

2002-05-21  Martin Baulig  <martin@gnome.org>

        Work around a hard-to-fix bug in GDB and create a single dwarf/stabs
        file for all assemblies.  Currently, the JIT doesn't put all methods
        from a single assembly into a continuous region of memory.  We were
        previously creating valid DWARF 2 files for this, but unfortunately
        GDB's symbol tables get messed up when it reads more than one such file.

        * debug-private.h (AssemblyDebugInfo): Moved `f', `producer_name',
        `next_idx', `methods', `type_hash', `source_files' and `format'
        into the MonoDebugHandle.

        * debug.c (mono_debug_get_type): This now operates on the MonoDebugHandle,
        not on the AssemblyDebugInfo.
        (mono_debug_open_file): Moved some stuff here from mono_debug_open_assembly().

        * debug-dwarf2.c (mono_debug_write_assembly_dwarf2): Renamed into
        mono_debug_write_dwarf2().
        (mono_debug_open_assembly_dwarf2): Removed.
        (mono_debug_close_assembly_dwarf2): Removed.

        * debug-stabs.c (mono_debug_write_assembly_stabs): Renamed into
        mono_debug_write_stabs().
        (mono_debug_open_assembly_stabs): Removed.
        (mono_debug_close_assembly_stabs).

        * debug-dwarf2-plus.c: This is currently broken. :-(

2002-05-20  Martin Baulig  <martin@gnome.org>

        * debug.h (mono_debug_format): New global variable.
        (MonoDebugFormat): Added MONO_DEBUG_FORMAT_NONE.

        * debug-private.h (MonoDebugHandle): Added `objfiles' field which is
        a whitespace separated list of symbol files.
        (AssemblyDebugInfo): Added `objfile' filed which is the name of the
        symbol file.

        * mono.c (main): Pass the assembly file name to mono_debug_open_file().

        * debug.c (mono_debug_make_symbols): Link all symbol files into a big
        `<assemblyname>.o' symbol file.

2002-05-20  Martin Baulig  <martin@gnome.org>

        * debug.c (debug_load_method_lines): Check whether the assembly file
        is newer than the IL file and recreate the IL file if necessary.

2002-05-20  Miguel de Icaza  <miguel@ximian.com>

        * mono.c Updated copyright years. 

2002-05-18  Miguel de Icaza  <miguel@ximian.com>

        * mono.c (usage): Relayout command line options.

2002-05-17  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg (reg): fixed array bound check

        * emit-x86.c (enter_method): print method signature

        * exception.c (arch_handle_exception): set trace info before we
        call handlers.

2002-05-16  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_find_final_block): make it work with mcs

        * x86.brg: buf fix. if exception variable is allocated to a register. 

        * jit.c (mono_find_final_block): bug fix.

2002-05-15  Dietmar Maurer  <dietmar@ximian.com>

        * delegate.c (arch_end_invoke): fix bug #24653, simplified the
        code using new runtime_invoke feature.

        * jit.c (mono_analyze_flow): try blocks are followed by handler
        blocks, so we need to add all handler blocks as succesors.
        (mono_thread_start_cb): set end_of_stack

        * exception.c (arch_handle_exception): correctly save/restore caller
        saved regs.

        * emit-x86.c (arch_emit_prologue): correctly save/restore caller
        saved regs.

        * jit.c (mono_cfg_new): allocate space for caller saved registers.

2002-05-14  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c: only use one TLS slot to store jit data

        * exception.c (arch_handle_exception): print function signature,
        use thread relative end_of_stack

2002-05-13  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (OPT_BOOL): new. opt. for boolean variables - we simply
        store them as 32 bit integers.
        (mono_analyze_stack): we need to generate a temporary var for
        SHL/SHR because the tree allocator can fail otherwise 

        * exception.c (arch_handle_exception): EIP now points to the call
        instruction, not to the instruction after the call. This fixes the
        bug reported by Linus Upson (tests/exception8.cs)

2002-05-11  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_analyze_flow): always allocate the forest array
        (mono_stack_duplicate_used_var): impl.
        (mono_copy_used_var): impl.

        * x86.brg: bug fix in SHR/SHL

        * emit-x86.c (arch_emit_prologue): check if live_in_set != NULL

2002-05-11  Sergey Chaban <serge@wildwestsoftware.com>

        * mono.c: new --fast-iconv command line option
        to enable fast FP-to-integer conversion code.
        * jit.c, jit.h: added global variable to store state
        for the above option. This optimization is disabled
        by default.
        * x86.brg: added code to emit fast FP-to-integer
        conversion sequences.

2002-05-10  Dan Lewis  <dihlewis@yahoo.co.uk>

        * emit-x86.c: simple definite assignment analysis optimization for
        uninitialized locals.

Fri May 10 15:43:53 CEST 2002 Paolo Molaro <lupus@ximian.com>

        * x86.brg, emit-x86.c: patch the branch targets with x86_patch().

2002-05-10  Dietmar Maurer  <dietmar@ximian.com>

        * linear-scan.c (mono_update_gen_set): improvement/bug fix

        * x86.brg: added additional rules to handle global allocated registers

        * mono.c (usage): the option is called --nols, and it dissables
        linear scan.

        * x86.brg: better LDIND_R4, LDIND_R8, STIND_R4, STIND_R8

2002-05-09  Dietmar Maurer  <dietmar@ximian.com>

        * linear-scan.c: linear scan reg. allocation and data flow analysis
        use Paolo's great bitset implementation.

        * jit.c (arch_allocate_var): add live range info
        (mono_cfg_add_successor): create list of successors for basic
        blocks.

        * mono.c (main): new option --ls to enable linear scan

        * exception.c (arch_handle_exception): print instruction pointer
        relative to method start address.

        * jit.c (mono_print_ctree): print register number if locals are
        allocate in registers.

        * emit-x86.c (arch_emit_prologue): initialize reg. allocated locals
        (arch_emit_epilogue): take care when restoring save registers,
        because the stack pointer may has changed.

        * x86.brg: s/VAROFFSET/VARINFO/
        modified to support global register allocation

Mon May 6 15:38:15 CEST 2002 Paolo Molaro <lupus@ximian.com>

        * jit.h, jit.c, emit-x86.c: x86 cpu detection code from Sergey.

2002-05-03  Sergey Chaban <serge@wildwestsoftware.com>

        * x86.brg: more coni4 optimizations
        MUL: generate optimized code for some consts other
        than powers of 2 (hardcoded impl. for 3, 5, 10 etc.);
        DIV_UN: multiply with reciprocal instead of dividing;

2002-05-03  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: use VAROFFSET macro

        * emit-x86.c (tree_emit): allocate space for spilled regs in
        activation frame instead of pushing them to the stack.

        * x86.brg: replace BXX with CBRANCH/COMPARE
        replaced CXX CSET/COMPARE

        * emit-x86.c (arch_allocate_regs): improved register allocation

2002-05-02  Dietmar Maurer  <dietmar@ximian.com>

        * delegate.c (mono_delegate_cleanup): signal semaphore in order to
        exit threads.

2002-04-30  Dick Porter  <dick@ximian.com>

        * mono.c (main): Tell glib to not abort when g_log() etc print
        recursively

2002-04-30  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: opt. LDELEMA impl.
        (MUL) use shift when possible.
        (DIV) use shift when possible.
        impl. various opt. with coni4

        * exception.c (arch_handle_exception): use ctx->SC_EBP in
        end_of_stack check as suggested by Linus Upson <linus@linus.com>

2002-04-29  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg (LDLEN, UNBOX): removed unnecessary NULL check.  

        * exception.c: included the Freebsd patch from Sandro Tolaini
        <sandro@focuseek.com>

Mon Apr 29 15:18:00 CEST 2002 Paolo Molaro <lupus@ximian.com>

        * mono.c, jit.c: use mono_runtime_run_main ().

2002-04-29  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_analyze_stack): dont call methods on Object with
        METHOD_ATTRIBUTE_FINAL directly because it breaks remoting.

        * x86.brg: added more CONV_U rules

        * jit.c (mono_analyze_stack): avoid recursive call of virtual
        methods: fixes Bug #23778 
        (mono_analyze_stack): emit right CONV_UX opcodes: fixes bug 23547

        * exception.c (arch_handle_exception): only g_assert(cleanup) if
        we really need it.

2002-04-27      Patrik Torstensson <patrik.torstensson@intel.com>

        * x86.brg: fixed bug in CONV_I8 (invalid stack correction)

2002-04-27  Martin Baulig  <martin@gnome.org>

        * jit.h (MonoFlowGrap): Renamed `epilogue_begin' to `epilogue_end',
        there's already `epilog' so we don't need `epilogue_begin'.

        * debug.c (mono_debug_add_method): Use `cfg->epilogue_end' to get the
        size of the method's code.

2002-04-25  Martin Baulig  <martin@gnome.org>

        * debug-dwarf2.c (dwarf2_write_string_type): Reflect latest MonoString
        changes.

2002-04-25  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: enable stmt: STIND_I4 (addr, coni4) again,
        added CONV_OVF_I4 (fix bug #23808)

2002-04-23  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: code cleanup - use x86_patch ()

        * jit.c (mono_analyze_stack): only use MB_TERM_CHECKTHIS when necessary
        (mono_analyze_stack): don't store constants in temp. variables for CEE_DUP

        * x86.brg (stmt): removed stmt: STIND_I4 (addr, coni4) rule
        because it slows down performance.

2002-04-21  Dan Lewis  <dihlewis@yahoo.co.uk>

        * emit-x86.c: enter_method handles 8-byte aligned parameters.

2002-04-20  Dan Lewis  <dihlewis@yahoo.co.uk>

        * jit,h, jit.c, x86.brg: NEWOBJ_SPEC and NEWARR_SPEC terminals for
        non-shared code.

2002-04-20  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (check_inlining): added statistics about inlineing

        * mono.c (usage): new switch --noinline to disable inlining

        * jit.c (mono_analyze_stack): added a check for (this!=NULL) if we
        inline methods (to keep semantics)

        * x86.brg: added constant folding for inegers 

        * emit-x86.c (tree_allocate_regs): handle the special case when
        chain rules need a register.

2002-04-19  Dietmar Maurer  <dietmar@ximian.com>

        * invoke.c (arch_create_native_wrapper): do not save LMF for Strings

        * jit.c (check_inlining): better inlining support

2002-04-19  Dan Lewis  <dihlewis@yahoo.co.uk>
        
        * x86.brg: LDLEN uses max_length instead of bounds[0]
        * jit.c: support for new szarray format

2002-04-18  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (check_inlining): added inlining support

2002-04-17  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: optimized version of castclass and isinst

Wed Apr 17 12:34:56 CEST 2002 Paolo Molaro <lupus@ximian.com>

        * emit-x86.c, invoke.c: track time spent compiling.

Wed Apr 17 10:58:37 CEST 2002 Paolo Molaro <lupus@ximian.com>

        * emit-x86.c, invoke.c: call profile callbacks if needed.
        * jit.c, jit.h, mono.c: add --profile command line option.

2002-04-16  Gonzalo Paniagua Javier <gonzalo@ximian.com>

        * jit.h: included mono/io-layer/io-layer.h to avoid breaking
        compilation under windows when upgrading mingw and w32api to 
        version 1.3 (thanks Dick!).

2002-04-15  Patrik Torstensson <patrik.torstensson@labs2.com>

        * jit.c: changed the array icalls to use full names

2002-04-15  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: check the this pointer before calling
        non-virtual functions

        * emit-x86.c (arch_emit_prologue): initialize local vars.

        * x86.brg: removed incredible clumsy code

2002-04-13  Martin Baulig  <martin@gnome.org>

        * debug-dwarf2.c (dwarf2_write_variable_location): New static func to write
        the location of a variable.
        (dwarf2_write_variable, dwarf2_write_parameter): Take a MonoDebugVarInfo
        instead of a stack offset and use dwarf2_write_variable_location() to write
        the location.

2002-04-13  Martin Baulig  <martin@gnome.org>

        * debug.c, debug-stabs.c, debug-dwarf2.c: Reflect latest debug-symfile.h
        API changes.

2002-04-12  Gonzalo Paniagua Javier <gonzalo@ximian.com>

        * Makefile.am: use of the new '-s' option in monoburg.

2002-04-12  Martin Baulig  <martin@gnome.org>

        * debug-dwarf2.c (dwarf2_write_variable): Emit info about the variable's
        lifetime.

2002-04-10  Sergey Chaban <serge@wildwestsoftware.com>
        * win32-exception: added Win32 SEH exception filter that translates
        CONTEXT to sigcontext;

        * jit.c: added Win32 SEH init/reset calls, compute sigcontext address
        in a platfrom-dependent way;

        * jit.h: use win32-exception instead of signal if PLATFORM_WIN32
        and avoid io-layer includes;

        * delegate.c: do not include io-layer stuff if PLATFORM_WIN32
        is defined;

2002-04-09  Dietmar Maurer  <dietmar@ximian.com>

        * delegate.c (arch_end_invoke): restore output arguments

Mon Apr 8 17:16:40 CEST 2002 Paolo Molaro <lupus@ximian.com>

        * jit.c: call mono_runtime_init ().

2002-04-08  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_jit_cleanup): added more statistics

        * invoke.c (arch_create_native_wrapper): special case EndInvoke -
        we need to pass the MonoMethod pointer as first argument.

        * delegate.c (mono_async_invoke): notify all listeners, not only a
        single one.
        (arch_end_invoke): we now pass a MonoMethod as first parameter and
        use arch_method_call_message_new() to access the stack.
        (arch_end_invoke): wait until we really finished processing
        (async_invoke_abort): notify all listeners, not only a
        single one.

2002-04-06  Dietmar Maurer  <dietmar@ximian.com>

        * message.c (arch_return_value): impl.
        (arch_method_return_message_restore): consider delegate BeginInvoke

        * jit.c: removed jit_exec_main()

        * delegate.c (arch_begin_invoke): use the message builder to make
        it architecture independent - still needs more cleanup.

2002-04-05  Dietmar Maurer  <dietmar@ximian.com>

        * delegate.c (mono_delegate_ctor): support for transparent proxy

        * x86.brg (freg): bug fix in CONV_R* opcodes

2002-04-04  Dietmar Maurer  <dietmar@ximian.com>

        * message.c: added documentation

2002-04-03  Dietmar Maurer  <dietmar@ximian.com>

        * mono.c (main): use --trace instead of --trace-calls

        * x86.brg: impl. REMOTE_STIND_XX

        * message.c (mono_store_remote_field): impl.

2002-03-30  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: impl. REMOTE_FIELD (load fields of remote objects)

        * message.c (mono_load_remote_field): impl.

        * jit.c (mono_analyze_stack): only call marshalbyref methods
        through the vtable.
        (mono_analyze_stack): consider marshalbyref objects in LDFLD

Fri Mar 29 16:00:27 CET 2002 Paolo Molaro <lupus@ximian.com>

        * x86.brg: kill pointer arithmetric.

2002-03-28  Martin Baulig  <martin@gnome.org>

        * jit.c (mono_debug_insert_breakpoint): New global variable.
        (mono_debug_last_breakpoint_address): New global variable.

        * emit-x86.c (arch_compile_method): If `mono_debug_insert_breakpoint' is
        non-zero, insert a breakpoint; if it's positive, decrement it when done.
        Set `mono_debug_last_breakpoint_address' to the address of the last inserted
        breakpoint.

        * debug.h: Provide external declaration of `mono_debug_insert_breakpoint' and
        `mono_debug_last_breakpoint_address', also documented them here.

2002-03-28  Martin Baulig  <martin@gnome.org>

        * debug-private.h (MonoDebugHandle): Renamed `format' to `default_format'.
        (AssemblyDebugInfo): Added `format'.

        * debug.c: Use the AssemblyDebugInfo's `format' field to determine the format,
        this allows us choose the format on a per-assembly basis.
        (mono_debug_open_assembly): When using MONO_DEBUG_FORMAT_DWARF2_PLUS, fall back
        to MONO_DEBUG_FORMAT_DWARF2 if the symbol file does not exist, but the IL file
        exists.
        (debug_generate_method_lines): Generate correct IL offsets.

2002-03-28  Martin Baulig  <martin@gnome.org>

        * jit.h (MonoFlowGraph): Added `prologue_end' and `epilogue_start' fields.

        * emit-x86.c (arch_compile_method): Set prologue_end and epilogue_start.

        * debug-private.h (DebugMethodInfo): Renamed `frame_start_offset' to
        `prologue_end_offset', added `epilogue_begin_offset' and `last_line'.

        * debug.c (debug_generate_method_lines): Don't return if we don't have line
        numbers, we still need to generate the IL offsets here. Emit line numbers
        for `prologue_end_offset' (the first line of actual code) and 
        `epilogue_begin_offset' (the line of the method's closing brace).
        Don't crash if cfg->bblocks [i].forest is NULL.
        (mono_debug_add_method): Don't crash if we don't have line numbers.
        Initialize the newly added fields.

        * debug-stabs.c: Record first and last line, emit filename info at the
        beginning of the stab file, gdb ignores the types otherwise.

        * debug-dwarf2.c: Use the new prologue_end_offset instead of guessing it;
        emit line number info for the first and last line.

2002-03-28  Dietmar Maurer  <dietmar@ximian.com>

        * invoke.c (arch_create_delegate_trampoline): impl.

Thu Mar 28 11:58:53 CET 2002 Paolo Molaro <lupus@ximian.com>

        * Makefile.am, mono.c, jit.h, jit.c: build the libmono library
        with the jit runtime to easy embedding. main() is moved to mono.c, now.
        * jit.c: use opcode names from libmetadata.
        * debug.h, debug.c: constify char* argument.

2002-03-28  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c: catching SIGSEGV again, added proxy support

2002-03-21  Dietmar Maurer  <dietmar@ximian.com>

        * delegate.c (mono_delegate_init): remove unused worker threads

2002-03-27  Mike Kestner <mkestner@speakeasy.net>

        * delegate.c (arch_get_delegate_invoke): malloc a bigger area

Tue Mar 26 19:54:45 CET 2002 Paolo Molaro <lupus@ximian.com>

        * jit.c: remove glib mem vtable code.

2002-03-26  Martin Baulig  <martin@gnome.org>

        * debug-dwarf2.c (write_method_lines_dwarf2): Don't generate method
        lines if we don't have line number information.
        (write_method_dwarf2): Use `minfo->method_info.this_offset' instead
        of hardcoding 8.

        * debug-stabs.c (write_method_stabs): Don't generate method lines if
        we don't have line number information. Use `minfo->method_info.this_offset'
        instead of hardcoding 8.

        * debug.c (debug_generate_method_lines): Don't crash if we don't have
        line number information.
        (mono_debug_open_assembly): Don't generate line numbers for
        MONO_DEBUG_FORMAT_DWARF2_PLUS.
        (mono_debug_add_method): Don't store the 'this' offset in `param_offsets',
        but it in the new `this_offset' field.
        
Mon Mar 25 13:03:35 CET 2002 Paolo Molaro <lupus@ximian.com>

        * debug.c (debug_generate_method_lines): Use correct addresses for
        record_il_offset().

Mon Mar 25 13:03:35 CET 2002 Paolo Molaro <lupus@ximian.com>

        * jit.c: do not set the glib mem vtable anymore.
        * Makefile.am: link to libmonoutils.

2002-03-25  Martin Baulig  <martin@gnome.org>

        * debug.h (mono_debug_make_symbols): Documented this function.

2002-03-24  Martin Baulig  <martin@gnome.org>

        * debug.c (mono_debug_add_method): Include the `this' offset in
        the `minfo->method_info.param_offsets' array.

2002-03-23  Martin Baulig  <martin@gnome.org>

        * x86.brg (lreg: CONV_I8 (reg)): X86_XOR modifies the flags, so we need
        to do it before the X86_CMP.
        (reg: CLT (lreg, lreg)): Use correct x86_branch8() targets.
        (reg: CLT (lreg, lreg)): Likewise.
        (reg: CLT_UN (lreg, lreg)): Likewise.
        (reg: CLT_UN (lreg, lreg)): Likewise.
        (reg: CGT (lreg, lreg)): Likewise.
        (reg: CGT (lreg, lreg)): Likewise.
        (reg: CGT_UN (lreg, lreg)): Likewise.
        (reg: CGT_UN (lreg, lreg)): Likewise.

2002-03-23  Martin Baulig  <martin@gnome.org>

        * debug-private.h (AssemblyDebugInfo): Added `_priv'.

        * debug-dwarf2-plus.c
        (mono_debug_open_assembly_dwarf2_plus): Open the symbol file here.
        (mono_debug_close_assembly_dwarf2_plus): Close the symbol file here.
        (mono_debug_write_assembly_dwarf2_plus): Only call
        mono_debug_update_symbol_file() here.

Thu Mar 21 17:35:48 CET 2002 Paolo Molaro <lupus@ximian.com>

        * jit.c: inter strings before executing a method.
        Do not intern command line arguments anymore.

2002-03-21  Martin Baulig  <martin@gnome.org>

        * debug.h (MonoDebugFormat): Added MONO_DEBUG_FORMAT_DWARF2_PLUS.

        * debug-dwarf2-plus.c: This debugging format reads a symbol file which has
        been created by MCS and fills in all machine dependent stuff.

        * debug-private.h (DebugMethodInfo): Added `MonoDebugMethodInfo method_info',
        removed everything which is already in MonoDebugMethodInfo.

        * debug.c (debug_generate_method_lines): Generate the MonoILOffsetInfo array.
        (mono_debug_make_symbols): Don't open the file or call as, this is done in the
        backend code.

        * jit.c (main): Added "--dwarf-plus" command line option to use the new
        MONO_DEBUG_FORMAT_DWARF2_PLUS debugging format.

2002-03-21  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (usage): new option to specify maximum number of worker threads
        (mono_analyze_stack): avoid cyclic dependency in CEE_LDFTN

        * delegate.c (async_invoke_abort): added support for asynchronous exceptions
        (arch_get_async_invoke): notify listeners before we call the
        asynchronous callback

2002-03-20  Dietmar Maurer  <dietmar@ximian.com>

        * delegate.c (async_invoke_thread): support for domains
        (async_invoke_thread): create workers only when needed

2002-03-19  Dietmar Maurer  <dietmar@ximian.com>

        * delegate.c (async_invoke_thread): initial support for BeginInvoke/EndInvoke

2002-03-18  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: impl. lreg: XOR (lreg, lreg)
        impl. REM (freg, freg)

2002-03-17  Martin Baulig  <martin@gnome.org>

        * debug.c (mono_debug_open_assembly): Call mono_debug_get_type() on all
        base types.

        * debug-dwarf2.c: Added support for strings and arrays.

2002-03-17  Martin Baulig  <martin@gnome.org>

        * debug.c (mono_debug_get_type): Recursively call this for all function members
        of a class type.
        (mono_debug_add_method): Don't mangle function names, this must be done by the
        debugger backend if the debugging format needs mangled names.

        * debug-dwarf2.c: Improved support for classes, added member functions.

2002-03-16  Martin Baulig  <martin@gnome.org>

        * debug.c (mono_debug_get_type): Recursively call this for all members and
        parent classes of a class type.

        * debug-dwarf2.c: Added basic support for classes. Set source language to C++
        since GDB doesn't like Java very much.

2002-03-16  Martin Baulig  <martin@gnome.org>

        * debug-dwarf2.c: Added support for enums.

2002-03-15  Martin Baulig  <martin@gnome.org>

        * debug.c (mono_debug_get_type): Recursively call this for all members
        of a struct type.

        * debug-dwarf2.c: Added support for structs.

2002-03-15  Dietmar Maurer  <dietmar@ximian.com>

        * emit-x86.c (arch_create_jit_trampoline): adapt save/restore LMF
        to new MonoLMF layout

2002-03-14  Dietmar Maurer  <dietmar@ximian.com>

        * emit-x86.c (arch_create_native_wrapper): new code to generate
        wrappers for calling native functions.
        (arch_create_native_wrapper): free allocated strings
        (arch_handle_exception): made mono_jit_info_table domain dependent

2002-03-14  Martin Baulig  <martin@gnome.org>

        * debug.c (MonoDebugFormat): New public enums specifying which debugging
        format to use.
        (mono_debug_open_file): Added MonoDebugFormat argument.
        (mono_debug_make_symbols): Don't take an argument to make it easier to call
        this function from GDB. It's now safe to call this function multiple times;
        it'll always write a complete debugging file.

        * debug.c: Splitted this file into a general part which remains in this file
        and the debugging format specific parts debug-stabs.c and debug-dwarf2.c.
        All public functions now call a corresponding format specific function.

        * debug.c: The following changes are private to debug.c:
        (AssemblyDebugInfo, MonoDebugHandle): Moved declarations to debug-private.h.
        (record_line_number, debug_generate_method_lines): New private functions.
        (mono_debug_open_ass): Renamed to mono_debug_open_assembly; this function now
        calls a debugging-format-specific function (mono_debug_open_assembly_stabs or
        mono_debug_open_assembly_dwarf2).
        (mono_debug_make_symbols): Calls mono_debug_write_assembly_stabs/dwarf2(). It's
        now safe to call this function multiple times.
        (mono_debug_get_type): New public function. This takes a `MonoClass *' and
        returns an unique index for this type. It's used to ensure that we only write
        each class once to the debugging file.
        (mono_debug_add_method, mono_debug_add_type): Store all the data in an internal
        data structure, but don't directly write to the debugging file. This is done
        later from mono_debug_write_assembly().

        * jit.c (main): Added "--dwarf" command line argument to generate DWARF 2
        debugging output. Call mono_debug_close() on cleanup if necessary.

2002-03-14  Martin Baulig  <martin@gnome.org>

        * debug-private.h: New private header file.

        * debug-stabs.c: Added the stabs type generation stuff which was
        previously in debug.c.

        * debug-dwarf.c: Started to implement type support. We're currently
        only writing this most basic types to the dwarf file, but this will
        change soon.

2002-03-13  Martin Baulig  <martin@gnome.org>

        * debug-stabs.c, debug-dwarf2.c: New files containing my new
        debugging code. They're now in CVS, but not yet used anywhere.

2002-03-11  Dietmar Maurer  <dietmar@ximian.com>

        * emit-x86.c (mono_delegate_ctor): use C impl. instead of x86_*
        macros, included new delegate code from Daniel Stodden. 
        
        
Mon Mar 11 14:47:21 CET 2002 Paolo Molaro <lupus@ximian.com>

        * jit.c: verify that corlib and runtime are in sync.

Mon Mar 11 11:30:56 CET 2002 Paolo Molaro <lupus@ximian.com>

        * emit-x86.c, jit.c: use the debug-helpers facilities to
        describe and match a method when debugging.

2002-03-10  Martin Baulig  <martin@gnome.org>

        * emit-x86.c (arch_compile_method): When emitting stabs debugging
        output, put a nop instruction at the start of all functions so that
        the adresses won't change when using --debug.

        * debug.c (mono_debug_add_method): `tree->cli_addr' is an offset into
        the bytecode area, stabs needs a line number in the .il file. Use the
        new info->moffsets to get the line number.
        (AssemblyDebugInfo): Added `total_lines' and `moffsets' fields.
        `moffsets' is an array of `total_lines' fields (total number of lines
        in the .il file); for each line in the .il field, this array contains
        the bytecode offset if it's an "IL_xxxx" line, -1 if it's the last line
        of a method and 0 otherwise.
        (debug_load_method_lines): Read the whole .il file and initialize the
        info->moffsets field.

2002-03-09  Martin Baulig  <martin@gnome.org>

        * x86.brg (DIV_UN): Clear EDX before performing the division and remove
        the unnecessary CDQ instruction.

2002-03-07  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_analyze_stack): only load addresses of value types
        on the runtime stack.

2002-03-07  Duncan Mak  <duncan@ximian.com>

        * Makefile.am: A small patch fixing errors in vpath-based builds
        (make clean failing to rerun monoburg due to BUILT_SOURCES usage),
        committed for Daniel Stodden <stodden@in.tum.de>. 

Thu Mar 7 17:22:52 CET 2002 Paolo Molaro <lupus@ximian.com>

        * jit.c: Boehm-GC enable.

2002-03-07  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg (SAVE_LFM): bug fix: patch the saved IP because we
        realloc that code sometimes!

        * emit-x86.c (mono_compute_branches): support several types of
        jump infos

2002-03-06  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: impl. MUL_OVF_UN (reg, reg)

        * jit.c (mono_find_final_block): find correct finally handler.

        * emit-x86.c (arch_create_jit_trampoline): bug fix: preserve
        caller saved registers.  

2002-03-05  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: use x86_widen_reg for CONV opcodes

2002-03-01  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (MAKE_SPILLED_BI_ALU): remove unnecessary assertions

        * emit-x86.c (arch_handle_exception): big fix - dont use
        uninitialized next_bp
        (arch_compile_method): make the jit thread save
        (x86_magic_trampoline): moved lock/unlock to x86_magic_trampoline
        to avoid need of recursive mutexes

        * x86.brg: use new mono_assert macros

2002-02-28  Dietmar Maurer  <dietmar@ximian.com>

        * emit-x86.c (arch_create_jit_trampoline): save/restore LMF before
        calling into unmanaged code (arch_compile_method).

        * x86.brg: impl. CONV_I4 (freg) with correct rounding
        (lreg): impl CALL_I8(INTF_ADDR)
        impl. CONV_R_UN (reg)
        bug fix im REM_UN

2002-02-27  Dietmar Maurer  <dietmar@ximian.com>

        * emit-x86.c (arch_runtime_invoke): impl. runtime invoke for the jit.

2002-02-26  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: bug fix in CLT(lreg,lreg)
        (reg): bug fix in CONV_OVF_I4(lreg)
        (lreg): replaced x86_call_reg with x86_call_code

        * emit-x86.c (mono_add_jump_info): impl.
        (mono_compute_branches): patch real jump address (instead of
        emitting code twice)

Tue Feb 26 11:56:03 CET 2002 Paolo Molaro <lupus@ximian.com>

        * x86.brg: optimize cmp reg,0 -> test reg.

Sun Feb 24 13:58:34 CET 2002 Paolo Molaro <lupus@ximian.com>

        * jit.h, jit.c, emit-x86.c: Added a few statistics counters
        and the --stats command line option to print them.
        Fixed memory leak in arch_compile_method () when a method's code is
        found in the cache. Fix magic trampoline to deal with static calls.

2002-02-21  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: impl. SHR_UN for lreg, added new test, bug fix for BNE_UN 

2002-02-19  Dietmar Maurer  <dietmar@ximian.com>

        * emit-x86.c (arch_compile_method): add shared code to mono_root_domain
        (arch_create_jit_trampoline): cache trampoline code

2002-02-18  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_analyze_stack): optimize LDSFLD/STSFLD for domain
        specific code.
        (mono_analyze_stack): use MB_TERM_LDELEMA to perform bound check

        * x86.brg: do not encode exception objects into the instruction
        stream, because they are domain dependend. Use
        arch_get_throw_exception_by_name() instead;

Mon Feb 18 15:51:40 CET 2002 Paolo Molaro <lupus@ximian.com>

        * jit.c: intern command line arguments.

2002-02-18  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_analyze_stack): use the magic trampoline for all
        calls (since we cant store the address of compiled code in
        method->addr).
        (mono_analyze_stack): imp. LDSTR for shared code

        * emit-x86.c (x86_magic_trampoline): handle x86_call_code().
        (arch_compile_method): add a cache for compiled methods to avoid
        recompilation. dont use method->addr to store domain dependent
        code address.

2002-02-15  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: impl. BLE,BGT for freg

Sat Feb 16 16:27:42 CET 2002 Paolo Molaro <lupus@ximian.com>

        * emit-x86.c: handle unreachable code. Eliminate some unneeded
        malloc() calls.
        * jit.c: handle unreachable code. Move setting of mono_end_of_stack to
        main(). Add --compile classname and --ncompile num command line
        options to do performance evaluation of the jitter (and help
        debugging).

2002-02-15  Dietmar Maurer  <dietmar@ximian.com>

        * emit-x86.c (arch_compile_method): bug fix in static delegate
        Invoke code.

2002-02-14  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_analyze_stack): do a LDIND after NEWOBJ for value types.

2002-02-13  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_analyze_stack): impl. CEE_SIZEOF

2002-02-13  Miguel de Icaza  <miguel@ximian.com>

        * jit.c (arch_allocate_var): Only assert that the alignment is
        at least 32-bits aligned, not always 32-bits aligned (for I8 for example).

Mon Feb 11 11:20:57 CET 2002 Paolo Molaro <lupus@ximian.com>

        * x86.brg: fix invalid cast check in unbox. Pack MBTree structure.

Sun Feb 10 12:54:05 CET 2002 Paolo Molaro <lupus@ximian.com>

        * emit-x86.c: make x86_magic_trampoline() handle call instructions
        with an imm8 displacement. x86.brg not yet changed to take advantage
        of it.

Sun Feb 10 11:47:30 CET 2002 Paolo Molaro <lupus@ximian.com>

        * jit.c: use opcode info from libmetadata to do flow analysis
        and simplify code.

2002-02-06  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (MAKE_LDELEM, MAKE_STELEM): added bound checking 

2002-02-05  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: use element_class for type check

2002-02-04  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (main): impl. __array_Address icall

        * mempool.c (mono_mempool_alloc): handle large block allocation

2002-02-01  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: impl. SHL/SHR/CLT for 64 bit values

2002-01-31  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: impl. CEQ(lreg,lreg)

        * jit.c (mono_analyze_stack): impl. LDVIRTFTN
        (mono_analyze_stack): handle MONO_TABLE_MEMBERREF in LDSFLD/STSFLD

        * x86.brg: removed some dead code.

2002-01-18  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (arch_allocate_var): fixed alignment bugs

2002-01-17  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_analyze_stack): use LDIND_REF/STIND_REF

2002-01-16  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (main): install the trampoline before we start to create
        objects.

        * x86.brg: impl. CLT_UN, CGT_UN

        * emit-x86.c (leave_method): added check for null object
        (enter_method): consider byref arguments

2002-01-14  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: bug fix in CONV_OVF_I1_UN
        impl. ADD_OVF, MUL_OVF
        impl. ADD_OVF_UN, SUB_OVF, SUB_OVF_UN
        (SUB (lreg, lreg)): bug fix - use SBB instead of SUB
        (EMIT_COND_EXCEPTION): added signed flag

Fri Jan 11 20:06:22 CET 2002 Paolo Molaro <lupus@ximian.com>

        * jit.c: implement stloc, ldloc, ldloca.

2002-01-11  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_analyze_stack): fixed calculation of last_instr

        * x86.brg (LDLEN): emit null_reference exception
        (BLE_UN): bug fix. 
        (RET, RET_VOID, RET_OBJ, ...) fixed jump to epilog

2002-01-04  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: bug fix in CASTCLASS

2001-12-21  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_analyze_stack): spill MUL to avoid problem with
        register allocation.

        * emit-x86.c (arch_compile_method): fixed static delegate bug

2001-12-16  Miguel de Icaza  <miguel@ximian.com>

        * x86.brg, jit.c: Split up the nodes that we used to share on
        CONV_OVF.  They were sharing the nodes because they are the same
        on 32-bit machines, but on 64-bit machines you need different
        code for them.

2001-12-17  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: removed prerequisite that (tree->left->reg1 <
        tree->right->reg1) to make register allocation easier.

2001-12-16  Dietmar Maurer  <dietmar@ximian.com>

        * emit-x86.c (arch_handle_exception): new code to handle
        exceptions inside unmanaged code.

        * x86.brg: impl. SAVE_LMF, RESTORE_LMF, pass implizit valuetype
        address as first argument.

2001-12-15  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: pass exceptions on the stack

        * jit.h (ISSTRUCT): new macro to check for real value types
        (return false for enum types). 

2001-12-11  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: use position indepentent code if possible. 

        * x86.brg (EMIT_COND_EXCEPTION): new macro.

        * emit-x86.c (mono_emit_cfg): impl. variable code buffer size

2001-12-10  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_analyze_flow): use g_malloc0 o allocate large bcinfo
        blocks.
        (mono_analyze_flow): use g_malloc0 o allocate large bblocks array.

        * x86.brg (stmt): added opt. for STIND_R4/STIND_R8

2001-12-07  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_allocate_intvar): bug fix.

        * emit-x86.c (get_unbox_trampoline): impl.

        * jit.c (mono_analyze_stack): impl STOBJ, LEAVE

2001-12-06  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: raise exceptions.

2001-12-05  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: impl. CEQ for freg, NEWSTRUCT now allocates valuetypes on
        the stack. 

2001-12-06  Miguel de Icaza  <miguel@ximian.com>

        * jit.c (mono_analyze_stack), x86.brg: Implement CONV.OVF.I1,
        CONV.OVF.I4, CONV.OVF.I1.UN, CONV.OVF.U1, CONV.OVF.U1.UN,
        CONV.OVF.I2.UN, CONV.OVF.I8.UN

2001-12-04  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: impl. UNBOX, NEWSTRUCT, removed VTYPE, bug fixes,
        removed the locaddr nonterminal, reimplemented value types
        
        * jit.c: reimplemented value type support, better support for
        enumeration types. 

2001-12-03  Miguel de Icaza  <miguel@ximian.com>

        * x86.brg, jit.c: Implement conv.ovf.u4, conv.ovf.u2, conv.ovf.i2,
        conv.ovf.u8 

Mon Dec 3 17:16:36 CET 2001 Paolo Molaro <lupus@ximian.com>

        * jit.c: call mono_init() after registering internal calls.

2001-11-30  Dietmar Maurer  <dietmar@ximian.com>

        * emit-x86.c (tree_preallocate_regs): improved register allocation

        * x86.brg: impl. ISINST, CASTCLASS

Fri Nov 30 12:02:24 CET 2001 Paolo Molaro <lupus@ximian.com>

        * x86.brg: rearrange fields to reduce struct size.
        * jit.c: use signature->param_count, not signature->params_size.
        * debug.c: off-by-one error fix.

2001-11-29  Radek Doulik  <rodo@ximian.com>

        * Makefile.am: build mono only for X86 architecture, compilation
        fails for ppc now because of accessing registers in sigcontext
        structure

2001-11-29  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_analyze_stack): bug fix in DUP

Thu Nov 29 12:32:01 CET 2001 Paolo Molaro <lupus@ximian.com>

        * debug.c: fix type handling. Position function position at start of
        IL code. Output more fine-grained stepping information.

2001-11-28  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg (LDIND_I1, LDIND_I2): use x86_widen_ instead of x86_mov_

        * jit.c (mono_analyze_stack): record the cli_address for later use
        with gdb.
        (sigsegv_signal_handler): translate sigsegv into "Internal error"
        exception.

Tue Nov 27 16:32:41 CET 2001 Paolo Molaro <lupus@ximian.com>

        * debug.c, debug.h: added support for generating stabs.
        Stabs can be compiled with as and the resulting object file can be
        loaded in a gdb session with add-symbol-file object.o.
        * jit.c, jit.h: add --stabs and --debug command line arguments. Keep track
        where locals and arguments are stored in the stack. Add support for
        passing command line arguments to CLR programs.
        * emit-x86.c: insert a breakpoint at method invocation if needed.

2001-11-27  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c: exception support

        * emit-x86.c (arch_emit_epilogue): bug fix: restore the regs in
        the right order.

2001-11-26  Dick Porter  <dick@ximian.com>

        * Makefile.am (mono_LDADD): Add io-layer library

2001-11-19  Dietmar Maurer  <dietmar@ximian.com>

        * jit.c (mono_analyze_stack): impl. LDFTN
        (MAKE_SPILLED_BI_ALU): always spill DIV/REM results to memory to
        make register allocation easier on x86

        * emit-x86.c (enter_method): more debugging output for Strings
        (arch_compile_method): added delegate support
        (arch_compile_method): align EBP to 8 byte boundary

Mon Nov 19 11:36:22 CET 2001 Paolo Molaro <lupus@ximian.com>

        * jit.c: use mono_install_trampoline (), instead of exporting
        a function to a lower-level library.

2001-11-16  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg (STRING_ARG): impl. a way to marshal strings. This
        will be extensible to handle all possible kinds of marshalling
        requirements. 

        * jit.c (map_call_type): added MB_TERM_CALL_VOID
        (mono_analyze_stack): impl. LDELEMA, reimplemented CALL
        instructions to handle this arguments more effectively.

2001-11-15  Dietmar Maurer  <dietmar@ximian.com>

        * Makefile.am (mono_SOURCES): renamed testjit to mono

        * x86.brg: added debugging support 

        * testjit.c: added support for value types, CFG improvements

        * emit-x86.c (enter_method): handle value types
        (tree_allocate_regs): impl. a better way to handle chain rules

2001-11-10  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg (INITOBJ): bug fix: initialize data before use,
        simplified the code.

2001-11-09  Miguel de Icaza  <miguel@ximian.com>

        * testjit.c (mono_analyze_stack): Remove compiler warning by
        testing against NULL.

2001-11-09  Dick Porter  <dick@ximian.com>

        * Makefile.am (testjit_LDADD): Don't need THREAD_LIBS any more

2001-11-09  Dietmar Maurer  <dietmar@ximian.com>

        * testjit.c (mono_analyze_stack): new BOX impl.

        * x86.brg: implemented INITOBJ

        * testjit.c (mono_analyze_stack): finished array support
        (mono_analyze_stack): reimplemented DUP instruction

2001-11-08  Dietmar Maurer  <dietmar@ximian.com>

        * testjit.c (MAKE_STELEM, MAKE_LDELEM): we build a tree which
        represents the address of the element. This way we can emit highly
        optimized x86 instructions to access elements (using base+index+offset
        adressing mode)

2001-11-07  Miguel de Icaza  <miguel@ximian.com>

        * mempool.c: Include string.h to kill warning.

        * testjit.c: Add typecast to kill warning.

        * x86.brg: Include string.h to eliminate warning.

        * emit-x86.c (tree_allocate_regs): Fix arguments to g_warning to
        kill warning.

2001-11-07  Dietmar Maurer  <dietmar@ximian.com>

        * emit-x86.c (enter_method): print out all method arguments
        (x86_magic_trampoline): impl.
        (arch_create_simple_jit_trampoline): we use different trampolines
        for static methods (no need to write the address back into to
        vtable).

2001-11-06  Dietmar Maurer  <dietmar@ximian.com>

        * emit-x86.c (arch_create_jit_trampoline): optimised trampoline to
        use less the 16 bytes.

        * x86.brg: code cleanup

2001-11-05  Dietmar Maurer  <dietmar@ximian.com>

        * testjit.c: bug fixes.

        * emit-x86.c (leave_method): print result values

2001-11-03  Dietmar Maurer  <dietmar@ximian.com>

        * emit-x86.c (enter_method): new debugging code
        (leave_method): new debbuging code, this functions are called
        when you use the new option --trace-calls

2001-11-02  Dietmar Maurer  <dietmar@ximian.com>

        * testjit.c: impl. STELEM_XX, STELEM_XX

        * x86.brg: impl. LDLEN, LDELEMA
        

2001-10-15  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: added some experimental code for CALL
        instructions - still not found the optimal way to do it.

        * testjit.c (map_stind_type): add support for value types with
        a size of 1, 2 or 4 bytes, implemented CEE_UNBOX, CEE_LDOBJ,
        CEE_LDSTR, CEE_LDFLD, CEE_LDFLDA, CEE_STFLD, CEE_NEWOBJ, CEE_CEQ
        (ctree_create_newobj): impl.
        

        * emit-x86.c (tree_allocate_regs): removed allocation code for
        addr nonterminal.
        (get_address): use a simple, but bug free search instead of the
        buggy binary search.

2001-10-12  Dietmar Maurer  <dietmar@ximian.com>

        * testjit.c: support virtual functions

        * x86.brg: support different addressing modes for calls

2001-10-11  Dietmar Maurer  <dietmar@ximian.com>

        * testjit.c: impl. STFLD

2001-10-10  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: impl. CEQ

2001-10-04  Dick Porter  <dick@ximian.com>

        * testjit.c:
        * emit-x86.c: include mono-endian.h not endian.h

2001-10-02  Dietmar Maurer  <dietmar@ximian.com>

        * testjit.c (ctree_create_dup): really duplicate the tree.
        attach the arguments to the CALL node. Added a new macro to
        make argument order configurable (ARCH_ARGS_RIGHT_TO_LEFT).

2001-10-01  Dietmar Maurer  <dietmar@ximian.com>

        * interp.brg: the burm based interpreter: added the file as example.

2001-09-27  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: cleanup

        * testjit.c: impl. LDIND/STIND/LDLOCA, use g_malloc to alloc static
        data.
        (map_stind_type): support enum types
        (map_ldind_type): support enum types

        * emit-x86.c (tree_allocate_regs): added code to support
        register allocation for addressing modes trees.
        (tree_emit): bug fix: we have to emit all mono_burg_functins. The
        previous impl. did not work for chain rules.
        (compute_branches): support for SWITCH statements

        * x86.brg: added rules to model x86 addressing modes

2001-09-26  Dietmar Maurer  <dietmar@ximian.com>

        * emit-x86.c (compute_branches): implemented SWITCH

        * testjit.c (mono_create_forest): implemented LDIND/STIND opcodes
        (map_ldind_type): add enumeration types.
        (map_stind_type): add enumeration types.

        * emit-x86.c (arch_compile_method): more documentation.

        * testjit.c: moved the architecture specific things to emit-x86.c
        and x86.brg. Added more documentation. code cleanup.

2001-09-25  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: we now have different types of addresses: ADDR_L for local
        values, ADDR_A for arguments and ADDR_G for global addresses. We
        also use LDIND_XX token to load values from a specific address
        instead of LDLOC/STLOC. 

        * testjit.c: use the new adressing scheme everywhere:
        LDIND _XX (ADDR_X), and STIND_XX (ADDR_X, tree)  

2001-09-24  Dietmar Maurer  <dietmar@ximian.com>

        * testjit.c (main): fix bug in parameter parsing

        * x86.brg: impl. more opcodes

2001-09-23  Dick Porter  <dick@ximian.com>

        * Makefile.am (testjit_LDADD): rename PTHREAD_LIBS to THREAD_LIBS

2001-09-23  Dietmar Maurer  <dietmar@ximian.com>

        * testjit.c: use the memory pool to avoid memory leaks

2001-09-22  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: increment the stack pointer after function calls

2001-09-21  Dick Porter  <dick@ximian.com>

        * Makefile.am (testjit_LDADD): Added PTHREAD_LIBS to the link line

2001-09-21  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: implemented long MUL/DIV
        (MB_OPT_LEVEL): define optimisation level macro

        * testjit.c (tree_allocate_regs): added a way to prevent EDX usage
        for operations like idiv. it is also possible to assign specific registers.

2001-09-20  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: added basic support for long

        * testjit.c (mono_compile_method): implemented POP

2001-09-19  Miguel de Icaza  <miguel@ximian.com>

        * testjit.c (usage): Added a couple of more usage options.

2001-09-19  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: added more floating point grammar 

        * testjit.c (mono_compile_method): make local offsets negative

        * x86.brg: added some floating point trees

        * testjit.c (mono_compile_method): arguments on the runtime 
        stack are at least 4 bytes

        * x86.brg: partly implemented 8,16 bit integers

        * testjit.c (get_address): mark basic blocks

2001-09-18  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: added some rules to optimize code

        * testjit.c (get_address): use a binary search to get the address
        (main): added an option to debug the jit (-d)

Tue Sep 18 13:19:16 CEST 2001 Paolo Molaro <lupus@ximian.com>

        * testjit.c: better/faster align code. Handle ldloc.s and stloc.s.

2001-09-17  Miguel de Icaza  <miguel@ximian.com>

        * testjit.c (mono_compile_method): Provide better error reporting.

2001-09-17  Dietmar Maurer  <dietmar@ximian.com>

        * testjit.c (tree_get_address): impl. to fix address bug
        (tree_get_address): make sure that we can only jump to the first
        instruction of a tree.

        * x86.brg: emit real code for calls

        * testjit.c (create_jit_trampoline): creates a function to trigger jit
        compilation.
        (mono_compile_method): reversed argument order

2001-09-15  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg (stmt): don't emit unnecessary register moves

        * testjit.c (tree_allocate_regs): free registers earlier

2001-09-14  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: branch addresses are now resolved

        * testjit.c (compute_branches): compute address of branches

        * x86.brg: emit real x86 instructions

        * testjit.c: call objdump to disassemble the output

2001-09-13  Dietmar Maurer  <dietmar@ximian.com>

        * x86.brg: use the right offsets to access local variables
        and arguments.

        * emit-x86.c: only save/restore callee saved registers if they are
        really modified.

        * testjit.c (tree_allocate_regs): use the new MonoRegSet to
        allocate registers.
        (mono_compile_method): changed the tree for mothod calls

        * regset.h: impl.
        
        * regset.c: impl.
        

2001-09-10  Miguel de Icaza  <miguel@ximian.com>

        * x86.brg: Use Unix assembly syntax.

        * emit-x86.c: support code, should be moved

        * testjit.c: Use GPtrArrays instead of GLists, as those are very
        inefficient at appends.

        * Renamed `create_new_leave' to `create_new_leaf'