Alien-LibJIT

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libjit/ChangeLog  view on Meta::CPAN

	function removed.

2011-09-03  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-cache.h, jit/jit-cache.c (_jit_cache_get_method_list):
	function removed.

2011-07-27  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-config.h: added new file as central location for all
	platform config macros deduced from ./configure and cpp.
	* jit/Makefile.am: add jit-config.h.

	* include/jit/jit-context.h, jit/jit-context.c
	(jit_context_supports_threads): removed.
	* include/jit/jit-init.h, jit/jit-init.c (jit_supports_threads):
	added function to replace jit_context_supports_threads.

	* include/jit/jit-init.h, jit/jit-init.c
	(jit_supports_virtual_memory): added new function to check if
	the jit supports virtual memory routines.

	* include/jit/jit-vmem.h, jit/jit-vmem.c (jit_vmem_init)
	(jit_vmem_page_size, jit_vmem_round_up, jit_vmem_round_down)
	(jit_vmem_reserve, jit_vmem_reserve_committed, jit_vmem_release)
	(jit_vmem_commit, jit_vmem_decommit, jit_vmem_protect): added new
	files with virtual memory routines.
	* include/jit/Makefile.am, include/jit/jit.h: add jit-vmem.h
	* jit/Makefile.am: add jit-vmem.c

	* jit/jit-init.c (jit_init): call jit_vmem_init().

2011-07-10  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.c (choose_output_register, _jit_regs_assign):
	fix handling of explicitely assigned registers.

	* jit/jit-rules-x86.c (shift_reg): remove function.
	* jit/jit-rules-x86.ins (JIT_OP_ISHL, JIT_OP_ISHR, JIT_OP_ISHR_UN):
	rewrite rules with explicit assignment to "ecx" register, don't use
	shift_reg() function.

2011-07-02  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-compile.c (compile_block): amend debug info

2010-11-28  Klaus Treichel  <ktreichel@web.de>

	* config/jit-opcodes.ops: Set the destination value type for the
	address_of_label opcode.

	* jit/jit-dump.c (jit_dump_insn): Print the destination value for
	the address_of_label opcode.

2010-11-07  Klaus Treichel  <ktreichel@web.de>

	* jit/jit-cache.h: Fix comment for _jit_cache_get_end_method.

2010-10-24  Klaus Treichel  <ktreichel@web.de>

	* jit/jit-reg-alloc.c (_jit_regs_alloc_global): Set in_global_register
	on global register assignment.

2010-10-04  Klaus Treichel  <ktreichel@web.de>

	* jit/jit-internal.h: Add missing typedef in the declaration of the
	_jit_intrinsic_signature enumaeration. (Really Noah Lavine)

2010-09-21  Klaus Treichel  <ktreichel@web.de>

	* config/jit-opcodes.ops: Add definitions for the opcode's
	intrinsics.

	* jit/Makefile.am: Add jit-opcode-apply.c to the sources.

	* jit/jit-internal.h (enum _jit_intrinsic_signature): Declare the
	various intrinsic signatures.
	(struct _jit_intrinsic_info): Declare structure to hold the intrinsic
	information for an opcode.

	* jit/jit-opcode-apply.c: Add support for constant folding.

	* tools/gen-ops-parset.y, tools/gen-ops-scanner.l: Add support for
	generating the opcode intrinsic table.

2010-09-12  Klaus Treichel  <ktreichel@web.de>

	* config/jit-opcodes.ops: Remove the *eq_inv and *ne_inv float
	compare a branch opcodes because they behave exactly the same as
	the corresponding opcodes without the _INV suffix.
	Add macros to map the removed opcodes to their counterparts without
	the _INV suffix.

	* jit/jit-insn.c (jit_insn_to_not_bool): Replace the mappings
	to *EQ_INV and *NE_INV by mappings to *EQ and *NE.
	Remove the mappings for *EQ_INV and *NE_INV.
	(jit_insn_branch_if): likwise
	(jit_insn_branch_if_not): likewise

	* jit/jit-interp.c (_jit_run_function): Remove handling of
	the *EQ_INV and *NE_INV opcodes.

	* jt/jit-rules-interp.c (_jit_gen_insn): Remove the *EQ_INV
	and *NE_INV cases.

	* jit/jit-rules-x86-64.ins.c: Remove handling of the *EQ_INV and *NE_INV
	opcodes.

2010-08-10  Klaus Treichel  <ktreichel@web.de>

	* config/jit-opcodes.ops: Fix arg1 for the address_of opcode.

2010-08-09  Klaus Treichel  <ktreichel@web.de>

	* jit/jit-gen-x86-64.h: Add macros for the cvttss2si and cvttsd2si
	instructions.

	* jit-rules-x86-64.ins  (JIT_OP_FLOAT32_TO_INT,
	JIT_OP_FLOAT32_TO_UINT, JIT_OP_FLOAT32_TO_LONG,
	JIT_OP_INT_TO_FLOAT32, JIT_OP_UINT_TO_FLOAT32,
	JIT_OP_LONG_TO_FLOAT32, JIT_OP_FLOAT64_TO_FLOAT32,
	JIT_OP_FLOAT64_TO_INT, JIT_OP_FLOAT64_TO_UINT,

libjit/ChangeLog  view on Meta::CPAN


	* jit/jit-unwind.c: fix typos.

	* jit/jit-interp.c (_jit_run_function): adjust exception_pc if
	exception is generated by a previous instruction.

2008-10-05  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-interp.c (_jit_run_function): fix implementation of the
	JIT_OP_TRUNC_INT and JIT_OP_TRUNC_UINT opcodes in interpreter.

	* jit/jit-rules-interp.c (_jit_gen_insn): add support of the
	JIT_OP_INCOMING_REG opcode, interpreter needs it for exception
	handling.

2008-08-07  Klaus Treichel  <ktreichel@web.de>

	* jit/jit-apply.c jit/jit-insn.c, jit/jit-interp.c,
	tools/gen-apply.c: Include stdlib.h if available to pick up the
	declaration of alloca on NetBSD.

2008-07-26  Klaus Treichel  <ktreichel@web.de>

	* jit/jit-rules-x86-64.c (xmm_cmp_reg_imm, xmm_cmp_setcc_reg_imm,
	xmm_cmp_brcc_reg_imm): Add functions to handle compares with an
	immediate value.

	* jit/jit-rules-x86-64.ins: Add rules for an immediate value for
	JIT_OP_FEQ, ..., JIT_OP_DEQ, ... and the float32 and float64
	conditional branch opcodes.

2008-07-19  Klaus Treichel  <ktreichel@web.de>

	* dpas/dpas-parser.y (handle_boolean_binary): Add macro for binary
	operators returning a boolean value.
	(handle_compare_binary): Use handle_boolean_binary instead of
	handle_binary for non pointer compares. Set the result type to
	dpas_type_boolean instead of the common type for pointer compares.

	* tests/cond.pas: Add float compare tests where nan values are
	involved. Add compare tests for the *_inv opcodes.
	Add the same tests using branches for all float compare opcodes.

	* jit/jit-rules-x86-64.c (xmm_setcc, xmm_cmp_setcc_reg_reg,
	xmm_brcc, xmm_cmp_brcc_reg_reg, xmm_cmp_brcc_reg_membase): Add
	functions to handle float compares with consideration of nan values.

	* jit/jit-rules-x66-64.ins: Rewrite the float32 and float64 compare
	and branch rules using the new functions in jit-rules-x86-64.c.
	Add the corresponding *_inv rules.

2008-07-06  Klaus Treichel  <ktreichel@web.de>

	* jit/jit-rules-x86-64.ins: Replace the check if an immediate value
	is a signed 32bit value by using an if clause the new imms32 clause.
	Flag rules for branch opcodes with the branch option and add the
	commutative option where appropriate.

2008-07-06  Juan Jesus Garcia de Soria  <juanj.g_soria@grupobbva.com>

	* jit/jit-reg-alloc.c (choose_input_order): take into account global
	registers to see if it is suitable to exchange input values. This
	fixes a problem that took place when a commutative op is applied to
	a value that resides in a global register and is both the dest and
	the second source value of the op.

2008-05-30  Aleksey Demakov  <ademakov@gmail.com>

	* include/jit/jit-common.h: remove unused jit_function_compiled_t
	type.

	* include/jit/jit-except.h, include/jit/jit-common.h: move
	JIT_NO_OFFSET from jit-except.h to jit-common.h.

	* include/jit/jit-unwind.h, jit/jit-unwind.c: new files.
	* include/jit/jit.h, include/jit/Makefile.am: add jit-unwind.h.
	* jit/Makefile.am: add jit-unwind.c.

	* jit/jit-except.c (jit_exception_get_stack_trace): re-implement
	using unwind routines.

2008-05-28  Juan Jesus Garcia de Soria  <juanj.g_soria@grupobbva.com>

	* jit/jit-alloc.c (jit_free_exec): fix VirtualFree arguments.

	* jit/jit-function.c (_jit_function_destroy): free signature on the
	function destruction.

2008-05-27  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-internal.h (jit_builder_t):
	* jit/jit-insn.c (initialize_setjmp_block): remove longjmp_label
	field as useless.

2008-05-26  Klaus Treichel  <ktreichel@web.de>

	* tools/gen-rules-parser.y, tools/gen-rules-scanner.l: Add the imms32
	and immu32 keywords for 32bit signed and unsigned immediate values.

	* tools/gen-apply.c: Add support for apply return structs where
	different float types are at different offsets in the return struct.

	* jit/jit-apply.c (closure_handler): Handle return of different float
	types with different macros.

	* jit/jit-apply-x86.h (jit_builtin_return_float): Adjust macro to
	the new apply return struct layout.
	Add the new jit_builtin_return_double and jit_builtin_return_nfloat
	macros.
	Fix jit_builtin_return_float macro for MS cl.

	* jit/jit-apply-x86-64.h (jit_builtin_return_float): Adjust macro
	to the new apply return struct layout.
	Add the new jit_builtin_return_double and jit_builtin_return_nfloat
	macros.

	* jit/jit-apply-func.h: Add the new jit_builtin_return_double,
	jit_builtin_return_nfloat and jit_builtin_return_long macros.

2008-05-26  Juan Jesus Garcia de Soria  <juanj.g_soria@grupobbva.com>

	* include/jit/jit-defs.h.in: define JIT_EXPORT_DATA macro to support
	win32 DLL symbol import/export idiosyncrasy. On non-win32 this macro
	is simply "extern".

libjit/ChangeLog  view on Meta::CPAN

2007-01-17  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.h, jit/jit-reg-alloc.c: complete special x87
	arithmetic support, for other x87 instructions reverse the order of
	arguments on the stack.

	* jit/jit-rules-x86.ins: take advantage of regalloc's x87 arithmetic
	support. Also do not clobber the entire x87 stack for atan, sin, and
	cos rules.

2007-01-12  Heiko Weiss <heiko.weiss@de.trumpf-laser.com>

	* jit/jit-function.c: Fix a typo in jit_function_from_vtable_pointer
	which breaks the build if libjit is built in interpreter mode.

2007-01-04  Thomas Cort  <linuxgeek@gmail.com>

	* jit/jit-rules-alpha.c: register class should not include FIXED
	registers.

	* .cvsignore, tools/.cvsignore, tutorial/.cvsignore: updated
	the .cvsignore files to ignore some generated files.

2007-01-03  Thomas Cort  <linuxgeek@gmail.com>

	* jit/jit-rules-alpha.c: initialize alpha register classes.
	Fix signed-ness warnings.

2007-01-02  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-rules-x86.ins: add JIT_OP_IMIN_UN rule (based on the
	  patch #5540 by Kirill Kononenko).

	* jit/jit-reg-alloc.c (set_regdesc_value, set_regdesc_register)
	(choose_output_register): handle EARLY_CLOBBER flag for dest value.

2006-12-30  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-class.c, jit/jit-reg-class.h, jit/Makefile.am: add
	register classes.

	* jit/jit-rules-x86.c (_jit_init_backend): initialize x86 register
	classes.

	* jit/jit-reg-alloc.h, jit/jit-reg-alloc.c: specify register class
	for each value and scratch register. Clean up interface.

	* tools/gen-rules-scanner.l, tools/gen-rules-parser.y: add register
	class declaration; "reg", "lreg", "freg" are not keywords anymore.
	"scratch" requires register class specification. "clobber" accepts
	register class which means all registers in the class are clobbered.
	Remove "only", "spill_before", "unary", and "binary" keywords.
	Replace "unary_note" and "binary_note" with "note". Also replace
	"unary_branch" and "binary_branch" with "branch".

	* jit/jit-rules-alpha.ins, jit/jit-rules-x86.ins: update according
	to the new rule syntax.

2006-12-20  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-thread.h, jit/jit-thread.c: add _jit_global_lock mutex.
	* jit/jit-init.c (jit_init): make sure that initialization is done
	  only once.

2006-12-17  Klaus Treichel  <ktreichel@web.de>

	* include/jit/jit-function.h, jit/jit-function.c: Add the function
	jit_function_from_vtable_pointer to convert a vtable pointer back to
	the jit_function_t.

2006-11-29  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.c (save_value): fix bug freeing stack register
	that is not on the stack top.

2006-11-27  Kirill Kononenko  <Kirill.Kononenko@gmail.com>

	* jit/jit-rules-x86.c (throw_builtin):
	* jit/jit-rules-x86.ins (JIT_OP_THROW, JIT_OP_LOAD_PC): directly use
	the inst variable to get current PC value for the position-dependent
	code case (patch #5503).

2006-11-27  Aleksey Demakov  <ademakov@gmail.com>

	* include/jit/jit-context.h: add JIT_OPTION_POSITION_INDEPENDENT
	option.
	* jit/jit-internal.h (struct _jit_builder): add position_independent
	field.
	* jit/jit-function.c (_jit_function_ensure_builder): initialize
	position_independent field.

	* jit/jit-rules-x86.c (throw_builtin):
	* jit/jit-rules-x86.ins (JIT_OP_ADDRESS_OF_LABEL, JIT_OP_JUMP_TABLE)
	(JIT_OP_THROW, JIT_OP_LOAD_PC): add position_independent check and
	stub missing cases.

2006-11-26  Kirill Kononenko  <Kirill.Kononenko@gmail.com>

	* jit/jit-rules-x86.ins: if JIT_USE_SIGNALS is defined do not emit
	explicit division by zero check (patch #5278).

2006-11-26  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.c (choose_output_register): fix global register
	use cost computation.

	* jit/jit-rules-x86.ins: mark as commutative JIT_OP_IADD,
	JIT_OP_IMUL, JIT_OP_LADD, JIT_OP_IAND, JIT_OP_IOR, JIT_OP_IXOR,
	JIT_OP_LAND, JIT_OP_LOR, JIT_OP_XOR rules.

2006-11-25  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.c (exch_stack_top, free_value): fix freeing
	stack registers.

2006-11-25  Kirill Kononenko  <Kirill.Kononenko@gmail.com>

	* jit/jit-rules-x86.ins: add JIT_OP_ISIGN and JIT_OP_LSIGN rules
	(patch #5533), optimize JIT_OP_LNEG rule (patch #5555). [with
	some modifications by Aleksey Demakov.]

2006-11-11  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-rules-x86.ins: add JIT_OP_IABS and JIT_OP_LABS rules.

2006-11-04  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-rules-x86.ins: make comparison opcodes use three-address
	patterns.

2006-11-01  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.c (commit_input_value, commit_output_value):
	do not increment/decrement the top of the register stack in case of
	fp-value coalescing.

2006-10-23  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-rules-x86.ins: JIT_OP_EXPAND_INT and JIT_OP_EXPAND_UINT
	rules were broken for local byte or short values. Fixed by removing
	the local pattern altogether as the reg pattern produces the same
	code but without the bug.

2006-10-18  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.c (clobbers_register, bind_value): enable
	coalescing of the destination value of a copy operation with the
	source value in a single register.

	* jit/jit-rules-x86.ins: tag COPY rules with the "copy" keyword
	and change patterns of TRUNC rules to have a separate destination
	register.

2006-10-16  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-interp.h, jit/jit-interp.c (_jit_run_function): 
	* jit/jit-opcode.c, jit/jit-rules-interp.c (_jit_gen_insn): Repair
	struct handling broken since the last interpreter reorganization,
	remove unused interpreter opcodes.

	* jit/jit-rules-interp.c (_jit_gen_start_block): check if the fixup
	position is before the cache end. This prevents segmentation fault
	when the end of cache block is reached and jit_function_compile()
	attempts to generate more code (it checks for the cache end way too

libjit/ChangeLog  view on Meta::CPAN

	previously it was always assigned to a separate register. Also
	restructure the code that will be used for better selection of x87
	instructions (this code was not used before and still is not but
	this is about to change).

	* jit/jit-rules-x86.ins: rewrite all LOAD_RELATIVE and LOAD_ELEMENT
	ops for x86 as three-address. Adjust IREM ops so that they work
	correctly together with the latest allocator changes.

2006-08-22  Klaus Treichel  <ktreichel@web.de>

	* jit/jit-alloc.c: Use mmap and munmap to allocate executable memory
	where available because memory allocated with malloc is not executable
	on some archs/distros.

2006-08-21  Thomas Cort  <linuxgeek@gmail.com>

	* jit/jit-rules-alpha.c jit/jit-gen-alpha.h: Add macros for
	int to fp and fp to int conversions. Use _jit_pad_bufer.

2006-08-20  Thomas Cort  <linuxgeek@gmail.com>

	* jit/jit-apply-alpha.c jit/jit-apply-alpha.h jit/jit-rules-alpha.h
	jit/jit-rules-alpha.ins jit/jit-rules-alpha.c jit/jit-gen-alpha.h:
	Remove unnecessary code from the prolog, epilog, redirector, and
	closure. Implement > and >= opcodes for signed and unsigned values.

2006-08-19  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.c (set_regdesc_flags): fix a problem with the
	clobber	flag being ignored. The problem was introduced by the patch
	from 2006-06-17.

2006-08-15  Thomas Cort  <linuxgeek@gmail.com>

	* jit/jit-rules-alpha.c jit/jit-rules-alpha.h jit/jit-rules-alpha.ins
	Add a TODO() macro to print unimplemented warnings. Fix some 
	casting warnings. Implement _jit_gen_redirector(...). Fix
	JIT_CDECL_WORD_REG_PARAMS to use the correct parameter 
	registers. Add some stack push and pop instructions.

2006-08-15  Kirill Kononenko  <Kirill.Kononenko@gmail.com>

	* configure.in: add --enable-signals option;
	* jit/Makefile.am: add jit/jit-signal.c;
	* jit/jit-signal.c, jit/jit-internal.h: add _jit_signal_init();
	* jit/jit-init.c: call _jit_signal_init() if JIT_USE_SIGNALS is
	defined. (patch #5278.)

2006-08-11  Thomas Cort  <linuxgeek@gmail.com>

	* jit/jit-rules-alpha.c jit/jit-rules-alpha.ins Properly handle
	fixups on alpha. Implement JIT_OP_CALL_EXTERNAL for alpha.

2006-07-29  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.c (use_cheapest_register): allow a register that
	contains an input value to be used as a scratch register. The input
	value in this case is copied to another register. This resolves the
	problem with JIT_OP_IREM rule that failed to allocate a scratch reg
	in a very specific case (all EBX, ESI, EDI regs are used as global,
	dividend is initially in ECX and copied to EAX:EDX pair where x86
	idiv expects it to be).

	* jit/jit-reg-alloc.c (set_regdesc_flags): fix a bug.

2006-07-23  Thomas Cort  <linuxgeek@gmail.com>

	* jit/jit-apply-alpha.c jit/jit-apply-alpha.h jit/jit-apply-func.h
	jit/jit-gen-alpha.h jit/jit-rules-alpha.c jit/jit-rules-alpha.h
	jit/jit-rules-alpha.ins Implement the redirector for alpha. 
	Continue to implement more functions in jit/jit-rules-alpha.c.

2006-07-15  Thomas Cort  <linuxgeek@gmail.com>

	* jit/jit-apply-alpha.c jit/jit-gen-alpha.h jit/jit-rules-alpha.h
	jit/jit-rules-alpha.c: Implement closure for alpha. Use jsr 
	instead of bsr in alpha_call. Clean up prolog and epilog 
	generation for alpha to be more readable.

2006-07-13  Thomas Cort  <linuxgeek@gmail.com>

	* jit/jit-gen-alpha.h jit/jit-rules-alpha.c jit/jit-rules-alpha.h:
	Added trap barrier macro alpha_trapb. Implemented 
	_jit_gen_prolog and _jit_gen_epilog for alpha.

2006-07-12  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-insn.c (jit_insn_move_blocks_to_start): fix problem with
	wrong order of blocks that were moved from the position just after
	the init_block and with disappearance of blocks after the empty
	init_block.

2006-07-12  Thomas Cort  <linuxgeek@gmail.com>

	* README.alpha jit/Makefile.am jit/jit-apply-alpha.c 
	jit/jit-apply-alpha.h jit/jit-elf-defs.h jit/jit-gen-alpha.h
	jit/jit-rules-alpha.c jit/jit-rules-alpha.h 
	jit/jit-rules-alpha.ins /jit/jit-rules.h: Initial import of the
	code for the alpha port.

2006-07-06  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-rules-x86.ins: fix division by power of two.

2006-07-05  Aleksey Demakov  <ademakov@gmail.com>

	* configure.in: make new register allocator the default.

	* jit/jit-reg-alloc.c (is_register_alive, compute_spill_cost): fix
	problem with destroying the end register of a long pair.

2006-07-03  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-rules-x86.ins: add JIT_OP_LOW_WORD, JIT_OP_EXPAND_INT,
	JIT_OP_EXPAND_UINT, JIT_OP_INT_TO_NFLOAT, JIT_OP_UINT_TO_NFLOAT,
	JIT_OP_LONG_TO_NFLOAT, JIT_OP_ULONG_TO_NFLOAT and rewrite
	JIT_OP_TRUNC_SBYTE, JIT_OP_TRUNC_UBYTE, JIT_OP_LOAD_PC rules.

	* jit/jit-rules-x86.c (_jit_opcode_is_supported): include .inc file
	instead of .slc if USE_NEW_REG_ALLOC is defined.

libjit/ChangeLog  view on Meta::CPAN

	may be used by the code generator as a hint. However currently the
	code generator does not use such a hint. The old code is kept for
	reference #ifdefed out.

2006-06-17  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.h, jit/jit-reg-alloc.c: implement support of the
	JIT_REGS_FREE_DEST flag for 3-argument instructions. Tweak reg alloc
	API.

	* tools/gen-rules-parser.y: adjust for reg alloc API changes. Use
	'$0' pattern element to refer to destination register in 3-argument
	instructions.

	* jit/jit-rules-x86.ins: rewrite JIT_OP_IDIV, JIT_OP_IDIV_UN,
	JIT_OP_IREM, JIT_OP_IREM_UN, JIT_OP_ADDRESS_OF_LABEL,
	JIT_OP_LOAD_RELATIVE_FLOAT32, JIT_OP_LOAD_RELATIVE_FLOAT32,
	JIT_OP_LOAD_RELATIVE_NFLOAT, JIT_OP_LOAD_ELEMENT_FLOAT32,
	JIT_OP_LOAD_ELEMENT_FLOAT64, JIT_OP_LOAD_ELEMENT_NFLOAT rules.

2006-06-16  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-rules-x86.sel, jit/jit-rules-x86.ins: fix JIT_OP_IDIV	and
	JIT_OP_IREM rules for the divisor value of -1.

2006-06-09  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-rules-x86.ins: rewrite JIT_OP_STORE_RELATIVE_BYTE,
	JIT_OP_STORE_RELATIVE_SHORT, JIT_OP_STORE_RELATIVE_LONG,
	JIT_OP_STORE_RELATIVE_FLOAT32, JIT_OP_STORE_RELATIVE_FLOAT64,
	JIT_OP_STORE_RELATIVE_NFLOAT, JIT_OP_STORE_ELEMENT_LONG,
	JIT_OP_STORE_ELEMENT_NFLOAT rules to use regular pattern
	syntax instead of manual.

2006-06-03  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-rules-x86.ins: remove _jit_regs_free_reg() call from
	JIT_OP_RETURN_FLOAT32, JIT_OP_PUSH_FLOAT32, JIT_OP_RETURN_FLOAT64,
	JIT_OP_RETURN_NFLOAT, JIT_OP_PUSH_FLOAT64, and JIT_OP_PUSH_NFLOAT
	rules. With new ``gen-rules'' tool it frees wrong register and
	the right register is anyway freed automatically by the new
	allocator.

	* jit/jit-reg-alloc.h, jit/jit-reg-alloc.c (_jit_regs_abort): add
	function to unbind values from registers if the code generation
	failed. This is required because new allocator may temporary bind
	constants to registers and if neither _jit_regs_commit() nor
	_jit_regs_abort() is called the constant value will be left in
	inconsistent state. The problem shows up when the end of a cache
	block has been reached and the compilation is restarted with a new
	block.

	* jit/jit-reg-alloc.c (_jit_regs_begin, _jit_regs_end):	add
	convenience functions.

	* tools/gen-rules-parser.y (gensel_output_clauses): make generated
	code more readable by using _jit_regs_begin() and _jit_regs_end()
	where appropriate.

	* jit/jit-reg-alloc.c: allow to load the second part of a register
	pair to a global register. This is because x86 long arithmetics
	use 4 registers at once: EAX:EDX and ECX:EBX. At the same time
	EBX is the global register candidate. If the instruction clobbers
	the global register, the new allocator automatically pushes it on
	the stack before and pops after the instruction.

	* jit/jit-function.c (compile_block): modify trace messages.

2006-05-28  Klaus Treichel  <ktreichel@web.de>

	* jit/jit-insn.c: Add a code_label in initialize_setjmp_block just
	before the end_label that is moved with the block to the start of
	the function as jump target to the code. Otherwise other blocks
	moved to the start after this block will never be executed.

2006-05-27  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.c (free_value, save_value): the value that has
	a global register and is also associated with a local register
	needs to be unbound from the local one.

	* jit/jit-reg-alloc.c (compute_spill_cost): assume that the spill
	cost for clean values is not zero. This keeps them in registers
	as long as there are free registers and thus reduces the number of
	loads.
	
2006-05-25  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.c (use_cheapest_register): fix cost calculation
	again for 'spill_before' rules. The last patch did not work for
	values stored in global registers. Now both global and non-global
	values should be copied to EAX.

2006-05-25  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.c (use_cheapest_register): fix cost calculation
	that sometimes caused overlooking free registers. This was a serious
	problem as there are some 'spill_before' rules that assume that the
	allocator will always choose EAX as the first free register.

2006-05-21  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.h: add _JIT_REGS_FREE_DEST flag to be used in
	cases when the destination register is independent of any input
	register.
	* tools/gen-rules-parser.y: allow specification	of independent
	destination register with '=reg' pattern syntax. (But the allocator
	does not yet handle this.)

2006-05-20  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-rules-x86.c (_jit_gen_exch_top): fix computation of stack
	register index.

	* jit/jit-reg-alloc.c (_jit_regs_assign): micro optimization by
	changing nesting order of for and if statements.

2006-05-19  Aleksey Demakov  <ademakov@gmail.com>

	* jit-reg-alloc.h, jit/jit-reg-alloc.c: determine if input values
	need to be saved and evicted from registers to stack frame at the
	_jit_regs_assign() time. Uniformly save input values that need to
	in _jit_regs_gen(), do not save them in _jit_regs_commit(). This
	simplifies handling of stack registers. Remove initial_stack_top,
	exchanges, num_exchages fields from the _jit_regs_t struct. Add
	save and kill bit fields to the _jit_regdesc_t struct. Refactor
	and clean up code.

2006-05-10  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.c (use_cheapest_register): check if the other
	part of a register pair clobbers global registers.

	* jit/jit-reg-alloc.c (exch_stack_top): run value exchange loop
	for all values in both registers.

	* jit/jit-reg-alloc.h, jit/jit-reg-alloc.c: delete on_stack field
	from the _jit_regdesc_t struct.

	* jit/jit-reg-alloc.c (_jit_regs_gen): handle instructions that have
	both stack and flat registers.

	* jit/jit-reg-alloc.c (spill_value): spilling an input value remember
	if we do register exchanges for other values.

	* jit/jit-reg-alloc.c: set touched registers more accurately.

2006-05-08  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.c (commit_input_value, commit_output_value):
	fix extra spills introduced at 2006-05-05.

	* jit/jit-rules-x86.c (_jit_gen_spill_top): add missing
	jit_cache_end_output().

2006-05-05  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.h, jit/jit-reg-alloc.c: fix spilling and many
	problems with stack registers.

2006-05-04  Radek Polak  <psonek2@seznam.cz>

	* jit/jit-dump.c (dump_object_code): Now can dump to any stream
	not just stdout and stderr.

2006-05-01  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-rules-x86.sel, jit/jit-rules-x86.ins: fix problem with
	spilling dest register in JIT_OP_ADDRESS_OF rule.

	* jit/jit-rules-x86.ins: rewrite JIT_OP_STORE_RELATIVE_INT rule.

2006-04-23  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.h, jit/jit-reg-alloc.c: register allocator now
	supports register sets that constrain the register assignment.

	* tools/gen-rules-parser.y: extend grammar to support register sets.
	Fix bugs.

	* jit/jit-rules-x86.ins: take advantage of new register allocator
	for JIT_OP_MEMORY, JIT_OP_MEMOVE, JIT_OP_MEMESET rules.

2006-04-20  Aleksey Demakov  <ademakov@gmail.com>

	* tools/gen-rules-parser.y: fix generation of `if' pattern code.

2006-04-19  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-rules-x86.c (_jit_gen_load_value): fix compiler warning.

	* tools/gen-rules-parser.y (gensel_output_clauses): fix generation
	of clobber and scratch code.

	* tools/gen-rules-scanner.l, tools/gen-rules-parser.y: add `any'
	keyword.

2006-04-18  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-rules-x86.ins: add instruction selection rules for new
	register allocator.
	* jit/Makefile.am: build new instruction selection rules.
	* configure.in: add --enable-new-reg-alloc option.

2006-04-14  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.h, jit/jit-reg-alloc.c: new register allocator
	improved and extended to support stack registers.

	* jit/jit-internal.h (struct _jit_builder): 
	* jit/jit-function.c (compile_block, jit_function_compile): add
	some tracing.

	* jit/jit-rules.h:
	* jit/jit-rules-arm.c:
	* jit/jit-rules-interp.c: 
	* jit/jit-rules-x86.c: add _jit_gen_exch_top and _jit_gen_spill_top
	functions used by new allocator to handle stack registers. Add reg
	argument to _jit_gen_spill_global and_jit_gen_load_global
	functions.

2006-04-11  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-insn.c (jit_insn_start_catcher): initialize
	thrown_exception (the problem was found by Klaus).

2006-04-08  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-opcode.c: add jump table into jit_opcodes array.

	* tools/gen-rules-parser.y: extend pattern syntax to allow mark
	  registers as clobbered. Fix bugs.

2006-04-07  Klaus Treichel  <ktreichel@web.de>

	* jit/jit-internal.h (struct _jit_function): add indirector field.
	* jit/jit-function.c (jit_function_compile, jit_function_create):
	  use indirector.
	* jit/jit-apply-x86.h: define jit_indirector_size.
	* jit/jit-apply-func.h, jit/jit-apply-x86.c (_jit_create_indirector):
	  add function that emits indirector code.

2006-04-07  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-insn.c (create_call_setup_insns): zero struct_return
	in case of tail calls (the problem was found by Klaus).

2006-04-03  Aleksey Demakov  <ademakov@gmail.com>

	* tools/gen-rules-scanner.l:
	* tools/gen-rules-parser.y: add `reversible', `x87arith',
	  and `copy' keywords. Fix bugs.

2006-03-23  Klaus Treichel  <ktreichel@web.de>

	* jit/jitc-except.c: Walk the stack to build the stack trace in
	jit_exception_get_stack_trace when the frame is not broken.

2006-03-23  Aleksey Demakov  <ademakov@gmail.com>

	* tools/Makefile.am: 
	* tools/gen-rules-parser.y, tools/gen-rules-scanner.l: add
	"gen-rules" tool that is similar to "gen-sel" but uses new
	register allocator.

2006-03-12  Klaus Treichel  <ktreichel@web.de>

	* jit/jit-insn.c: Pop the setjump context on return from functions
	with a catcher.

2006-03-11  Kirill Kononenko  <Kirill.Kononenko@gmail.com>

	* jit/jit-insn.c (create_call_setup_insn): fix tail calls, work
	if the called function is not the callee function
	(thanks klausT for finding the bug).

2006-02-27  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-insn.c (jit_insn_convert): fix int->uint and uint->int
	conversion.

2006-02-26  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-rules-x86.sel: fix JIT_OP_STORE_RELATIVE_LONG.

	* jit/jit-gen-x86.h (x86_pop_mem, x86_pop_membase): fix opcode --
	  it was 0x87 (xchg) instead of 0x8f (pop).

2006-02-24  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-insn.c (jit_insn_address_of_label): fix a typo.
	* jit/jit-rules-x86.sel: fix JIT_OP_ADDRESS_OF_LABEL rule.

2006-02-20  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-rules-x86.c (_jit_create_call_return_insns): fix return
	code in case of no return value or struct returned via pointer.

2006-02-19  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-reg-alloc.h: 
	* jit/jit-reg-alloc.c: Initial version of new local register
	  allocator.

	* jit/jit-rules.h: 
	* jit/jit-rules-arm.c (_jit_gen_spill_global): 
	* jit/jit-rules-interp.c (_jit_gen_spill_global): 
	* jit/jit-rules-x86.c (_jit_gen_spill_global): add function for
	spilling global registers. Used by the new allocator. Only x86
	version is really implemented.

2006-02-13  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-internal.h (struct _jit_value): add index field.
	* jit/jit-value.c (alloc_value): initialize index field;
	* jit/Makefile.am (libjit_la_SOURCES): add jit-bitset.c and jit-cfg.c.

2006-02-12  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-rules-x86.sel: fix JIT_OP_CALL_FINALLY.

2006-02-10  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-bitset.c: 
	* jit/jit-bitset.h: 
	* jit/jit-cfg.c:
	* jit/jit-cfg.h: initial code drop for a more precise liveness
	analysis based on control flow graph.

2006-02-04  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-rules-x86.sel: fix a typo in JIT_OP_JUMP_TABLE.

2006-01-30  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-rules-x86.c (_jit_gen_load_value): optimize loading
	of zero constants. Allow to move a value from one register to
	another.

2006-01-15  Rhys Weatherley  <rweather@southern-storm.com.au>

	* configure.in, NEWS: update version for the "0.0.6" release.

	* configure.in: updating working version to "0.0.7".

2006-01-14  Aleksey Demakov  <ademakov@gmail.com>

	* tools/gen-sel-parser.y: spilling a register which is the first
	part of a register pair spill the other part too.

	* jit/jit-reg-alloc.c (free_register_for_value):
	* jit/jit-rules-x86.sel: if a register is the second part of a
	register pair do not consider it free.

2006-01-13  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-insn.c: fix all descriptors of intrinsic functions that
	return an exception code to have return_type equal to
	_jit_type_int_def.

	* jit/jit-dump.c (dump_object_code): fix object file extension.

2006-01-11  Aleksey Demakov  <ademakov@gmail.com>

	* jit/jit-gen-x86.h (x86_jump_memindex): add macro for indirect
	jumps.
	* jit/jit-internal.h, jit/jit-function.c, jiy/jit-rules-x86.c:
	add fixup_absolute_list field to _jit_block struct for fixing up
	absolute address references to a block.

libjit/ChangeLog  view on Meta::CPAN

2004-06-21  Rhys Weatherley  <rweather@southern-storm.com.au>

	* jit/jit-rules-x86.c, jit/jit-rules-x86.sel: move the code
	for loading/storing small structures into a central location.

2004-06-18  Rhys Weatherley  <rweather@southern-storm.com.au>

	* jit/jit-dump.c, jit/jit-reg-alloc.c, jit/jit-rules-arm.c,
	jit/jit-rules-arm.h, jit/jit-rules-x86.c, jit/jit-rules-x86.h,
	jit/jit-rules-x86.sel, jit/jit-rules.c, jit/jit-rules.h,
	tests/param.pas: rewrite the x86 and ARM parameter handling
	routines to centralise the code and fix several bugs; add new
	tests for fastcall and stdcall conventions.

2004-06-17  Rhys Weatherley  <rweather@southern-storm.com.au>

	* jit/jit-reg-alloc.c (_jit_regs_set_outgoing): pass 64-bit "fastcall"
	parameters in ECX:EDX, not in ECX:EBX.

	* tools/gen-apply.c: allow floating-point values to be passed
	in "fastcall" registers.

2004-06-16  Rhys Weatherley  <rweather@southern-storm.com.au>

	* tools/gen-sel-parser.y: add a missing semi-colon.

2004-06-14  Rhys Weatherley  <rweather@southern-storm.com.au>

	* dpas/dpas-internal.h, dpas/dpas-parser.y, dpas/dpas-scanner.l,
	jit/jit-rules-x86.c, jit/jit-rules-x86.sel, tests/Makefile.am,
	tests/param.pas, tools/gen-apply.c: add some test cases for
	parameter passing; fix fastcall/stdcall conventions for x86.

	* jit/jit-rules-arm.h, jit/jit-rules-arm.sel, jit/jit-rules-x86.h,
	jit/jit-rules-x86.sel, tools/gen-sel-parser.y: enable register
	allocation for 64-bit values under x86 and ARM; expand some
	64-bit opcodes in the instruction selectors.

2004-06-12  Rhys Weatherley  <rweather@southern-storm.com.au>

	* jit/jit-insn.c, jit/jit-rules-x86.c, jit/jit-rules-x86.sel:
	implement or stub missing x86 instruction selection rules.

	* include/jit/jit-insn.h, include/jit/jit-opcode.h,
	include/jit/jit-plus.h, jit/jit-function.c, jit/jit-insn.c,
	jit/jit-interp.c, jit/jit-opcode.c, jit/jit-rules-interp.c,
	jitplus/jit-plus-function.cpp: add the "outgoing_frame_posn"
	instruction, to support tail calls.

2004-06-11  Rhys Weatherley  <rweather@southern-storm.com.au>

	* doc/libjit.texi, jit/jit-insn.c, jit/jit-internal.h,
	jit/jit-reg-alloc.c, jit/jit-rules-arm.c, jit/jit-rules-arm.sel,
	jit/jit-rules-interp.c, jit/jit-rules-x86.c, jit/jit-rules-x86.sel,
	jit/jit-rules.h, jit/jit-value.c, tutorial/Makefile.am,
	tutorial/t2.c, tutorial/t5.c: implement tail calls from a
	function to itself.

	* jit/jit-function.c, jit/jit-reg-alloc.c, jit/jit-rules-arm.c,
	jit/jit-rules-interp.c, jit/jit-rules-x86.c, jit/jit-rules.h:
	implement global register allocation for parameters in stack slots.

	* jit/jit-rules-x86.c, jit/jit-rules-x86.sel, jit/jit-rules.h:
	optimize the x86 function epilog when we are certain that the
	stack height doesn't change between entry and exit (i.e. the
	function is a leaf and there are no alloca's).

2004-06-10  Rhys Weatherley  <rweather@southern-storm.com.au>

	* jit/jit-apply-arm.c, jit/jit-gen-arm.c, jit/jit-gen-arm.h,
	jit/jit-rules-arm.c, jit/jit-rules-arm.h, jit/jit-rules-arm.sel,
	tools/gen-sel-parser.y: redesign the ARM code generation macros
	so that they have stronger protection against buffer overruns.

	* jit/jit-rules-arm.sel: flush the constant pool after unconditional
	branches, to try to minimize the probability that the pool will
	be flushed in the middle of a loop body.

	* jit/jit-dump.c: dump the hex address of external functions,
	to aid with debugging native disassembly dumps.

	* include/jit/jit-insn.h, include/jit/jit-opcode.h,
	include/jit/jit-plus.h, jit/jit-insn.c, jit/jit-internal.h,
	jit/jit-interp.c, jit/jit-opcode.c, jit/jit-rules-arm.c,
	jit/jit-rules-arm.sel, jitplus/jit-plus-function.cpp:
	add support for outgoing parameter areas, which should reduce
	the overhead of function calls that involve stacked arguments
	on non-x86 platforms; use parameter areas in the ARM back end.

	* include/jit/jit-plus.h, include/jit/jit-value.h, jit/jit-insn.c,
	jit/jit-internal.h, jit/jit-reg-alloc.c, jit/jit-rules-x86.c,
	jit/jit-value.c: don't over-allocate x86 stack frames if
	EBX, ESI, and EDI don't need to be saved; don't perform global
	register allocation on stacked parameters because it confuses
	the register spill logic.

	* jit/jit-reg-alloc.c (_jit_regs_load_value): avoid unnecessary
	spills if a temporary value won't be used again in the current block.

2004-06-09  Rhys Weatherley  <rweather@southern-storm.com.au>

	* jit/jit-rules-arm.c (flush_constants): update the instruction
	location after flushing the constant table.

	* jit/jit-gen-arm.h: fix some bugs in the encoding of floating-point
	load and store instructions.

	* jit/jit-gen-arm.c (_arm_alu_reg_imm): forgot to update the
	instruction pointer when loading the immediate value.

	* jit/jit-gen-arm.c: optimize the use of rotated immediate values.

	* jit/jit-rules-arm.c (_jit_gen_load_value): use ARM register pairs
	properly for "long" and "float64" values.

2004-06-08  Rhys Weatherley  <rweather@southern-storm.com.au>

	* jit/Makefile.am, jit/jit-cpuid-x86.c, jit/jit-cpuid-x86.h:
	add an API for querying the x86 "cpuid" information.

	* include/jit/jit-opcode.h, jit/jit-interp.c, jit/jit-opcode.c:
	remove obsolete opcodes which violate "_jit_load_opcode"'s rules.

	* jit/jit-reg-alloc.c, jit/jit-rules-x86.c, jit/jit-rules-x86.sel:
	more x86 instruction selection rules.

	* jit/jit-reg-alloc.c (_jit_regs_set_outgoing): implement
	missing function.

	* jit/jit-gen-arm.h (arm_call): use a more efficient form of
	call for offsets beyond the simple target range.

	* jit/jit-rules-arm.sel, tools/gen-sel-parser.y,
	tools/gen-sel-scanner.l: introduce conditional rules into "gen-sel"
	so that we can disable certain rules on ARM platforms that lack
	floating-point support.

	* jit/jit-rules-arm.c (_jit_gen_spill_reg): spill properly to
	global registers for ARM.

	* jit/jit-reg-alloc.c, jit/jit-rules-arm.c, jit/jit-rules-arm.sel,
	jit/jit-rules-x86.sel: minor register assignment bugs.

	* jit/jit-rules-arm.c: ARM parameters cannot be split between
	registers and the stack.

	* jit/jit-gen-arm.c, jit/jit-gen-arm.h, jit/jit-rules-arm.c,
	jit/jit-rules-arm.h, jit/jit-rules-arm.sel: implement a
	constant pool for ARM, which gets complicated constants out
	of the main stream of execution.

2004-06-08  Miroslaw Dobrzanski-Neumann  <mne@mosaic-ag.com>

	* jit/jit-alloc.c: fix ROUND_END_PTR so that it adds the size
	after casting to jit_nuint.

2004-06-07  Thong Nguyen  <tim@veridicus.com>

	* configure.in, jit/jit-insn.c: add "_setjmp" to the list of
	names to try to work around the "setjmp" macro (needed for Win32).

2004-06-07  Rhys Weatherley  <rweather@southern-storm.com.au>

	* tools/gen-apply.c: gen-apply fixes for Alpha platforms.

	* jit/jit-interp.c: alignment problem with "push_const_float32"
	on 64-bit platforms.

	* jit/jit-intrinsic.c: work around a SIGFPE for sqrt(-1) on Alpha;
	it should return NaN instead.

	* jit/jit-value.c: fix a warning.

	* configure.in, jit/jit-insn.c: use "sigsetjmp" instead of
	"setjmp", because "setjmp" may be a macro on some systems.

	* jit-gen-arm.h: add floating-point instruction macros.

	* jit/jit-gen-arm.h, jit/jit-rules-arm.c, jit/jit-rules-arm.h,
	jit/jit-rules-arm.sel: expand floating-point instructions for ARM.

	* jit/jit-rules-x86.c: fix misnaming of jit_type_get_abi,
	jit_abi_stdcall, and jit_abi_fastcall.

	* tools/gen-apply-macosx.h, tools/gen-apply.c: bypass the
	auto-detection logic in gen-apply under MacOSX because
	it doesn't work with Apple's version of gcc.

	* tools/gen-apply.c: gen-apply fix for ia64.

	* jit/jit-alloc.c (jit_flush_exec): warning fix for ia64.

2004-06-06  Miroslaw Dobrzanski-Neumann  <mne@mosaic-ag.com>

	* jit/jit-alloc.c (jit_flush_exec): flush cache lines properly
	if the start is not on a line boundary.

2004-06-06  Rhys Weatherley  <rweather@southern-storm.com.au>

	* jit/jit-reg-alloc.c, jit/jit-reg-alloc.h, jit/jit-rules-arm.c,
	jit/jit-rules-arm.sel, jit/jit-rules-x86.c, jit/jit-rules-x86.sel:
	add some more instructions to the ARM back end; split some x86
	back end code out into common code for ARM to use as well.

2004-06-02  Rhys Weatherley  <rweather@southern-storm.com.au>

	* jit/jit-function.c, jit/jit-insn.c, jit/jit-internal.h,
	jit/jit-reg-alloc.c, jit/jit-reg-alloc.h, jit/jit-rules-arm.c,
	jit/jit-rules-arm.h, jit/jit-rules-interp.c, jit/jit-rules-interp.h,
	jit/jit-rules-x86.c, jit/jit-rules-x86.h, jit/jit-rules.h,
	jit/jit-value.c, tools/gen-sel-parser.y: implement a simple global
	register allocation policy, based on usage counts.

	* jit/jit-reg-alloc.c (_jit_regs_load_value): if a value is in a
	global register and it is not going to be destroyed by an instruction,
	then use the global register as the operand.

	* jit/jit-insn.c: recognise "t = a op b; a = t" and turn it
	into "a = a op b" to make it easier for back ends to recognise
	special idioms such as increments and decrements.

2004-06-01  Rhys Weatherley  <rweather@southern-storm.com.au>

	* jit/jit-cache.c, jit/jit-elf-read.c, tools/gen-apply.c:
	fix some gcc 3.x compile warnings.

	* jit/jit-rules-arm.c, jit/jit-rules-arm.sel: more instruction
	selection rules for ARM.

	* configure.in, jit/jit-rules.h: enable the x86 back end by
	default on platforms where it makes sense, and add the option
	"--enable-interpreter" to "configure".

2004-05-31  Rhys Weatherley  <rweather@southern-storm.com.au>

	* jit/jit-rules-x86.sel: optimize multiplications for x86.

	* jit/jit-rules-x86.c, jit/jit-rules-x86.sel, tools/gen-sel-parser.y,
	tools/gen-sel-scanner.l: inline and optimize divisions for x86.

	* jit/jit-rules-x86.sel: throw exceptions correctly for "check_null".

2004-05-30  Rhys Weatherley  <rweather@southern-storm.com.au>

	* doc/libjit.texi: clarify the text that describes LLVM, at the
	request of Chris Lattner, LLVM's author.

	* jit/jit-insn.c (jit_insn_convert): use intrinsic functions
	for conversions when the back end doesn't support the opcode.

	* jit/jit-rules-x86.sel, tools/gen-sel-parser.y,
	tools/gen-sel-scanner.l: improve instruction selection for
	floating-point "push" operations.

	* include/jit/jit-insn.h, jit/jit-insn.c, jit/jit-internal.h,
	jit/jit-rules-x86.c: add "jit_insn_defer_pop_stack" and
	"jit_insn_flush_defer_pop", to defer the popping of function
	call arguments as long as possible.

	* jit/jit-rules-x86.sel: fix a cpu vs non-cpu register problem
	in the floating-point "push" operations for x86.

2004-05-29  Rhys Weatherley  <rweather@southern-storm.com.au>

	* jit/jit-insn.c, jit/jit-reg-alloc.c, jit/jit-reg-alloc.h,
	jit/jit-rules-x86.c, jit/jit-rules-x86.sel: continue the
	x86 back end; particularly byte/short stores.

	* jit/jit-rules-x86.sel: stub out JIT_OP_RETURN_REG, which
	doesn't need any special handling for x86.

2004-05-27  Rhys Weatherley  <rweather@southern-storm.com.au>

	* tools/gen-apply.c: split "detect_struct_conventions" up a bit
	more to (hopefully) prevent problems under MacOSX; fix a bug in
	the generation of "jit_apply_builder_align_regs" that affected

libjit/ChangeLog  view on Meta::CPAN

	* dpas/dpas-parser.y, dpas/dpas-types.c, dpas/dpas-types.h:
	put some infrastructure (incomplete) in place to support array
	index expressions.

	* configure.in, NEWS: update version for the "0.0.2" release.

	* configure.in: updating working version to "0.0.3".

2004-05-12  Rhys Weatherley  <rweather@southern-storm.com.au>

	* jitdynamic/Makefile.am, jitplus/Makefile.am: use both .libs and
	non.libs versions of the so paths, because some versions of libtool
	add .libs implicitly and others don't.

	* dpas/dpas-builtin.c, dpas/dpas-parser.y, dpas/dpas-types.c,
	dpas/dpas-types.h: add the "SameType" and "SameShape" builtins,
	to assist with unit testing type coercions.

	* dpas/dpas-parser.y (IfTail): fix a bug that caused the "then"
	case of an "if" to fall through to the "else".

	* dpas/dpas-parser.y: resolve ea-based lvalues in operators.

	* include/jit/jit-defs.h.in: incorrect values for jit_max_int
	and jit_max_long.

	* dpas/dpas-scanner.l (dpas_parse_hex): ignore the 'H' on the
	end of a hexadecimal constant.

	* Makefile.am, configure.in, tests/.cvsignore, tests/Makefile.am,
	tests/coerce.pas: check in some initial infrastructure for the
	dpas-based test suite.

	* jit/jit-type.c (jit_type_promote_int): promote ubyte and ushort
	to uint, not int.

	* jit/jit-insn.c, tests/coerce.pas: more coercion test cases and fixes.

	* dpas/dpas-builtin.c, jit/jit-dump.c, jit/jit-value.c: add builtins
	for mathematical operations.

	* dpas/dpas-parser.y, jit/jit-interp.cpp, tests/Makefile.am,
	tests/math.pas: test cases and bug fixes for mathematical operations.

	* dpas/dpas-main.c, include/jit/jit-context.h, jit/jit-context.c,
	jit/jit-insn.c, tests/Makefile.am: add the "--dont-fold" option
	to Dynamic Pascal, so that we can run the test cases without folding.

	* tests/README: add a README file to describe how to write test cases.

2004-05-11  Rhys Weatherley  <rweather@southern-storm.com.au>

	* include/jit/jit-insn.h, jit/jit-insn.c, jit/jit-interp.cpp,
	jit/jit-interp.h, jit/jit-opcode.c, jit/jit-rules-interp.c:
	round out the function call handling opcodes for the interpreter.

	* jit/jit-rules-interp.c, jit/jit-rules-interp.h: implement
	the exception-handling opcodes for the interpreter.

	* dpas/dpas-parser.y, dpas/dpas-scope.c, dpas/dpas-scope.h:
	fix a bug that caused global variables in Dynamic Pascal
	to be incorrectly allocated as locals.

	* jit/jit-reg-alloc.c (_jit_regs_load_to_top_two): handle the
	case where the second value is on the stack but not the first.

	* dpas/dpas-parser.y, dpas/dpas-types.c, dpas/dpas-types.h:
	report errors for unimplemented expressions and statements,
	so that users are not "surprised" when things silently fail.

	* .cvsignore, auto_gen.sh, configure.in, doc/.cvsignore,
	dpas/.cvsignore, dpas/Makefile.am, include/.cvsignore,
	jit/.cvsignore, jit/Makefile.am, jitdynamic/.cvsignore,
	jitdynamic/Makefile.am, jitplus/.cvsignore, jitplus/Makefile.am,
	tools/.cvsignore, tutorial/.cvsignore, tutorial/Makefile.am:
	modify the autoconf/automake build system to use libtool.

2004-05-10  Rhys Weatherley  <rweather@southern-storm.com.au>

	* jit/jit-reg-alloc.c, jit/jit-reg-alloc.h, jit/jit-rules-interp.c:
	interpreter code conversion for relative pointer and copy opcodes;
	fix some bugs in stack-based register allocation.

	* dpas/dpas-parser.y, dpas/dpas-types.c, dpas/dpas-types.h:
	loading and storing record fields in Dynamic Pascal.

	* dpas/dpas-builtin.c: implement the "New" and "Dispose" builtins.

2004-05-08  Rhys Weatherley  <rweather@southern-storm.com.au>

	* jit/jit-cache.c, jit/jit-cache.h, jit/jit-dump.c, jit/jit-interp.h,
	jit/jit-rules-interp.c: add "_jit_cache_get_end_method", to allow
	the end of a method's code to be located without explicit marking.

	* configure.in, include/jit/jit-util.h, jit/jit-string.c:
	remove the locale-sensitive string comparison routines because
	they aren't used in libjit, and front ends will normally have
	their own functions for this purpose.

	* Makefile.am, configure.in, doc/Makefile.am, doc/libjit.texi,
	include/jit/Makefile.am, include/jit/jit-dynamic.h,
	include/jit/jit-util.h, jit/Makefile.am, jit/jit-dynlib.c,
	jit/jit-mangle.c, jitdynamic/.cvsignore, jitdynamic/Makefile.am,
	jitdynamic/jit-cpp-mangle.c, jitdynamic/jit-dynlib.c:
	move the dynlib and C++ name mangling routines into a separate
	"jitdynamic" library, which will handle all of the cross-language
	naming and dynamic invocation logic.

	* include/jit/jit-type.h, jit/jit-internal.h, jit/jit-type.c,
	jitdynamic/jit-cpp-mangle.c: move the "JIT_TYPE_xxx" constants
	into the public headers and add "jit_type_get_kind" so that
	front end code can classify types quickly.

	* jit/jit-dump.c: use "objdump" to dump compiled native code.

2004-05-07  Rhys Weatherley  <rweather@southern-storm.com.au>

	* dpas/dpas-function.c, dpas/dpas-internal.h, dpas/dpas-main.c,
	dpas/dpas-parser.y, jit/jit-interp.cpp, jit/jit-interp.h,
	jit/jit-opcode.c, jit/jit-rules-interp.c: execute the "main"
	method once a Dynamic Pascal program has been compiled;



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