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jlechner |
2010-02-19 Martin Walter
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* t-scarts32: migrated libgcc2 functions:
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div.c, fixfloat.c
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2010-02-17 Martin Walter
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* scarts32.h: removed stabs debugging format
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* scarts32.h: added DWARF 2 debugging format
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* scarts32.c: implemented DWARF 2 debugging format
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2009-07-16 Martin Walter
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* scarts32.h: added builtin definition "__SCARTS32__"
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* scarts32.h: prepended section names with ".section"
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* scarts32.h: changed ASM_DECLARE_FUNCTION_NAME to produce more
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ELF-ish assembler code (added .global and .type)
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* scarts32.h: added ASM_DECLARE_FUNCTION_SIZE
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* scarts32.h: defined GLOBAL_ASM_OP; its absence rendered all
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symbols local in the object file
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* scarts32.h: changed .align to .p2align in ASM_OUTPUT_ALIGN
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for the sake of clearness
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* scarts32.h: added "-lnosys" to LIB_SPEC; libnosys.a is newlib's
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syscall interface for SCARTS and needed by libc.a
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* scarts32.h: removed ENDFILE_SPEC, since all crtend0.o contained
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is now handled by linker scripts
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* scarts32.c: removed CPP-macros and C-style comments to produce
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assembly code that does not require CPP-ing
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* scarts32.c: replaced TARGET_ASM_INTEGER by proper definitions of
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TARGET_ASM_(BYTE|HI|SI|DI)_OP (both aligned and unaligned)
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* scarts32.c: fixed bug: integer comparisons against const char *
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scarts32_codesize and scarts32_datasize were relaced with
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their long integer interpretations
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* scarts32.c: changed feasible distance for branches from [-512; 511]
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to [-256; 511] since this is the maximum range that the GNU
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assembler can store in the 10-bit signed immediate of jmpi*
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instructions
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2009-06-02 Martin Walter
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* config.gcc: added GNU as/ld and newlib specific options
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2007-08-26 Wolfgang Puffitsch
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* scarts32.c: shortened loads of symbols when compiling for small
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memories; changed default value so full loads are made by default
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2007-08-22 Wolfgang Puffitsch
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* scarts32.c (scarts32_output_function_prologue): fixed handling for
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interrupt functions
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(scarts32_output_function_epilogue): same here
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2007-05-19 Wolfgang Puffitsch
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* scarts32.h (LINK_SPEC): handling this option
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* scarts32.opt (mdatasize): added option to output the Intel hex format
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2007-05-11 Wolfgang Puffitsch
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* scarts32.c (scarts32_out_movsi): catching clobbering of
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stack-pointer now
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2007-05-10 Wolfgang Puffitsch
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* scarts32.md: likewise
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* scarts32.c: likewise
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* scarts32.h: adapted to framepointers being located in the sysctrl
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module
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2007-04-03 Wolfgang Puffitsch
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* scarts32.h: removed comments, which clobbered the file
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2007-03-29 Wolfgang Puffitsch
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* scarts32.c (scarts32_out_bittest): added this function, which
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reverses also the condition which usese the result
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* scarts32.md: added a whole lot of conditional instructions
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("btstsi"): added this pattern to emit BTEST
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2007-03-28 Wolfgang Puffitsch
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* scarts32-run.c: fixing a bug with LDH and LDB
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* scarts32.c (scarts32_out_compare): introduced this function so
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compares can be split from the use of the condition code
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* scarts32.h: introduced register 16 here
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* scarts32.md ("cmpsi"): now using pseudo-hard register 16 instead
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of cc0
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* scarts32.h: dito
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* scarts32.md: defined macros for constant registers
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* scarts32.md ("b"): simplified patterns for conditional
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jumps
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* scarts32.c (out_adj_stack_ptr): fixing a flaw that limited adj to
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16 bits
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* scarts32.md ("*ld_extqisi2", "*ld_exthisi2"): added these
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patterns for signed loads from memory
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2007-03-21 Wolfgang Puffitsch
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* 32-bit version of SCARTS works reasonably stable
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2007-02-10 Wolfgang Puffitsch
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* scarts32-run.c: adapted to new ISA
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########################################################################
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# release "Zen Arcade" #
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########################################################################
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2005-11-18 Wolfgang Puffitsch
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* scarts.md ("modqi3", "umodqi3"): added these patterns again, as
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the library functions were fixed.
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########################################################################
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# release "Metal Circus" #
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########################################################################
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2005-09-29 Wolfgang Puffitsch
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* scarts.c (scarts_output_function_prologue): redesigned prologues
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for signals and interrupts, now pre-decrement stack pointer so we
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are safe in case of interrupts
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(scarts_output_function_epilogue): likewise
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* scarts.md ("mulsi3", "divsi3", "udivsi3"): changed patterns so
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that stack pointer is incremented/decremented and we are safe in
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case of interrupts
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2005-08-11 Wolfgang Puffitsch
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* scarts.c: removed a few unnecessary add's when loading from
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memory with a small offset
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2005-08-06 Wolfgang Puffitsch
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* scarts.c (frame_pointer_required_p): fixed a bug with args passed
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in memory
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2005-07-31 Wolfgang Puffitsch
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* scarts-run.c (execute): fixed a little bug with overflows in
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stofX and ldofX.
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* scarts.c (frame_pointer_required_p): relaxed the requirements for
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the framepointer
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(initial_elimination_offset): adapted to new version of
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frame_pointer_required_p
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2005-06-30 Wolfgang Puffitsch
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* scarts.c (legitimate_address_p): fixed behaviour for registers
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when being strict
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2005-06-28 Wolfgang Puffitsch
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* scarts.h (RETURN_ADDR_RTX): fixed this macro
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2005-03-29 Wolfgang Puffitsch
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* scarts.md ("lshrsi1"): fixed bug that caused logical shifts to be
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done as arithmetic shifts for SImode values
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2005-03-14 Wolfgang Puffitsch
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* scarts.c (frame_pointer_required_p): now returning that frame
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pointer is always needed
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2005-02-25 Wolfgang Puffitsch
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* scarts.md: commented out modXX patterns, because the library
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functions are broken
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2005-02-24 Wolfgang Puffitsch
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* scarts.h (FUNCTION_PROFILER): added newline to output
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* scarts.c (scarts_unique_section): changed this function to avoid
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internal errors
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2005-02-23 Wolfgang Puffitsch
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* scarts.c (scarts_function_value): now returning BLKmode value
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always in memory which is less efficient but on the safe side
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regarding bugs in the compiler
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* scarts.h (ASM_OUTPUT_LABELREF): added this macro so a label
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called "data" cannot collide with the mnemonic of the same name
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(STACK_POINTER_OFFSET): changed this to fix a bug in the stack
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layout
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2005-02-19 Wolfgang Puffitsch
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* scarts.md ("*pushqi"): for some obscure reason the code for this
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insn was complete crap
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2005-02-18 Wolfgang Puffitsch
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* scarts.md: fixed typo that had caused operands of subtractions to
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be marked commutative
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* scarts.c (scarts_output_function_epilogue): now returning coorect
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value from main()
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2005-02-13 Wolfgang Puffitsch
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* scarts.c (scarts_output_function_epilogue): removed unneccessary
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code that caused "exit" always to be linked
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* scarts.md: fixed a few typos related to the argument for HImode
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shifts
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* scarts.h: same as with scarts.c, linker-specs were changed a so
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that the simplicistic linker can handle it
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* scarts.md: same as with scarts.c
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* scarts.c: changed output a little to make
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linking possible
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2005-02-11 Wolfgang Puffitsch
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* scarts.c, scarts.h: modified calling convention and its handling
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to fix a bug that appeared when running in cygwin
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2005-02-04 Wolfgang Puffitsch
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* scarts.md: fixed an off-by-one error when computing lengths of
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jumps
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("modhi3_call"): fixed severe typo that caused the libcalls to
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disappear
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* scarts.c (print_operand): added alternative for unsigned values
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as they are needed for addresses
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* scarts.md: added SImode division, unsigned division and modulo
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2005-02-01 Wolfgang Puffitsch
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* scarts.c: further simplified prologue and epilogue
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* scarts.md: added SImode multiplication
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2005-01-31 Wolfgang Puffitsch
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* scarts.c (scarts_out_movsi): fixed a typo that caused invalid
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offsets to be created. Fixed a bug with loading constant
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addresses. Cleaned up frame-pointer handling in prologue and
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epilogue a bit.
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* scarts.md: added SImode shifts
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2005-01-29 Wolfgang Puffitsch
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* scarts.c (legitimate_address_p): fixed an error that did not
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reject pseudo-regs when being strict
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2005-01-28 Wolfgang Puffitsch
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* scarts.c: introduced scarts_out_movqi, scarts_out_movhi,
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scarts_out_movsi, scarts_out_movhf, scarts_out_movsf
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(notice_update_cc): made this function do something, which seems
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to fix the bug which occurred with optimization
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* scarts.md: removed a number of patterns related to moves (movXX,
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stXX, stofXX, ldXX, ldofXX)
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2005-01-13 Wolfgang Puffitsch
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* scarts.md: changed patterns for calls
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2004-12-23 Wolfgang Puffitsch
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* scarts.c: the handling of the stack now finally should work; some
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cleanup still needed
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2004-12-11 Wolfgang Puffitsch
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* scarts.md: fixed a few typos in SImode and SFmode
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* scarts.c: (scarts_out_branch): fixed a typo and changed signed
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comparisons for lower bytes to unsigned comparisons, which should
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be correct
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2004-12-06 Wolfgang Puffitsch
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* scarts.md ("udivqi3", "udivhi3"): added patterns for unsigned
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divisions
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* scarts.c (scarts_out_branch): fixed broken comparisons with HImode
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and SImode
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2004-12-04 Wolfgang Puffitsch
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* scarts.c: fixed handling of the stack
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2004-12-03 Wolfgang Puffitsch
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* scarts.md: added some missing (clobber)s
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2004-12-01 Wolfgang Puffitsch
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* scarts.md: fixed a bug that could cause library functions not to
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be emitted in certain situations
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2004-11-30 Wolfgang Puffitsch
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* scarts.c (scarts_output_function_prologue): fixed problems with
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interrupts, especially interruptable ones
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2004-11-27 Wolfgang Puffitsch
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* scarts.md ("andqi3", "orqi3"): fixed a flaw that did not
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recognize ~0x8000 and 0x8000 correctly.
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2004-11-24 Wolfgang Puffitsch
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* scarts.h: introduced pseudo-section for uninitialized data
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2004-11-04 Wolfgang Puffitsch
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* scarts.md ("*ldofsi"): fixed a stupid typo
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2004-10-26 Wolfgang Puffitsch
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* scarts.md: enhanced and/ior-patterns so that bclr and bset are
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engaged when possible
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2004-10-23 Wolfgang Puffitsch
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* scarts.md: added a peepholes for conditional moves; further
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tuning is still needed so that other operations and full
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if/else-constructions can be matched
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* scarts.c (scarts_jump_mode): now using constants SCARTS_NEAR_JUMP,
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SCARTS_FAR_JUMP and SCARTS_ONE_JUMP for different modes instead of
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plain numbers
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2004-10-18 Wolfgang Puffitsch
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|
| 354 |
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* scarts.c (scarts_output_function_epilogue): corrected opcode for
|
| 355 |
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returning from an interrupt function
|
| 356 |
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(scarts_output_function_prologue): removed "sei" for interrupt
|
| 357 |
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functions, because the opcode does not exist
|
| 358 |
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|
| 359 |
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2004-06-21 Wolfgang Puffitsch
|
| 360 |
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| 361 |
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* scarts.md: removed patterns for converting floating point
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| 362 |
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numbers, which seems to work now implicitly.
|
| 363 |
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|
| 364 |
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2004-06-20 Wolfgang Puffitsch
|
| 365 |
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| 366 |
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* scarts.h (CALL_USED_REGISTERS): changed RTE register to be a
|
| 367 |
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|
fixed register, as being non-fixed was complete nonsense
|
| 368 |
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|
| 369 |
|
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* scarts.md: added useful code for accessing subregs with floating
|
| 370 |
|
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point modes
|
| 371 |
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|
| 372 |
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2004-06-18 Wolfgang Puffitsch
|
| 373 |
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|
| 374 |
|
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* scarts.c: changed register allocation scheme so that the
|
| 375 |
|
|
registers are adjacent if not all registers are used
|
| 376 |
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|
| 377 |
|
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2004-05-19 Wolfgang Puffitsch
|
| 378 |
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|
| 379 |
|
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* scarts.c (scarts_override_options): added means for not using a
|
| 380 |
|
|
number of registers
|
| 381 |
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|
|
| 382 |
|
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* scarts.h (REG_ALLOC_ORDER): changed register allocation scheme to
|
| 383 |
|
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a far superior model.
|
| 384 |
|
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|
| 385 |
|
|
2004-05-04 Wolfgang Puffitsch
|
| 386 |
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|
| 387 |
|
|
* scarts.md: improved handling of condition flag and a bunch of
|
| 388 |
|
|
other small things
|
| 389 |
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|
|
| 390 |
|
|
* scarts.c: migrated from traditional to ANSI function declarations
|
| 391 |
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|
| 392 |
|
|
* scarts.h (INIT_TARGET_OPTABS): removed
|
| 393 |
|
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|
| 394 |
|
|
* scarts.c (scarts_init_once): moved code to scarts_override_options
|
| 395 |
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|
|
| 396 |
|
|
* scarts.h (OBJC_PROLOGUE): removed: poisoned and useless anyway
|
| 397 |
|
|
(MACHINE_DEPENDENT_REORG): removed: poisoned and useless anyway
|
| 398 |
|
|
|
| 399 |
|
|
* scarts.c (scarts_rtx_costs): moved (CONST_COSTS) here
|
| 400 |
|
|
(TARGET_ASM_FILE_START): moved (ASM_FILE_START) here
|
| 401 |
|
|
(TARGET_ASM_FILE_END): moved (ASM_FILE_END) here
|
| 402 |
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|
| 403 |
|
|
2004-04-16 Wolfgang Puffitsch
|
| 404 |
|
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|
| 405 |
|
|
* scarts.md ("negsi2"): fixed that code which was plain wrong.
|
| 406 |
|
|
Fixed clobbering with multiplication, division and modulo.
|
| 407 |
|
|
|
| 408 |
|
|
2004-03-19 Wolfgang Puffitsch
|
| 409 |
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|
| 410 |
|
|
* scarts.c (scarts_output_function_prologue): starting stack now one
|
| 411 |
|
|
below, which seems to work better.
|
| 412 |
|
|
|
| 413 |
|
|
* t-scarts: changed so that compilation and installation run
|
| 414 |
|
|
smoothly.
|
| 415 |
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|
|
| 416 |
|
|
2004-03-15 Wolfgang Puffitsch
|
| 417 |
|
|
|
| 418 |
|
|
* scarts.md ("xorxx3"): changed name from "eorxx3" to "xorxx3",
|
| 419 |
|
|
because the first cause very bad code to be generated
|
| 420 |
|
|
(shifts): simplified generation of move-patterns
|
| 421 |
|
|
|
| 422 |
|
|
2004-03-13 Wolfgang Puffitsch
|
| 423 |
|
|
|
| 424 |
|
|
* scarts.c: fixed problems with the stack
|
| 425 |
|
|
|
| 426 |
|
|
* scarts.md: got rid of an obscure internal bug introduced by the
|
| 427 |
|
|
better shift patterns; fixed a few typos.
|
| 428 |
|
|
|
| 429 |
|
|
2004-03-12 Wolfgang Puffitsch
|
| 430 |
|
|
|
| 431 |
|
|
* scarts.c (print_operand): added T, U, V and W to fix loading of
|
| 432 |
|
|
64-bit constants
|
| 433 |
|
|
|
| 434 |
|
|
* scarts.md: added better shift-handling for HImode
|
| 435 |
|
|
|
| 436 |
|
|
2004-03-11 Wolfgang Puffitsch
|
| 437 |
|
|
|
| 438 |
|
|
* scarts.md: added code and patterns so that shifts by constants
|
| 439 |
|
|
are handled better
|
| 440 |
|
|
|
| 441 |
|
|
2004-03-10 Wolfgang Puffitsch
|
| 442 |
|
|
|
| 443 |
|
|
* scarts.c (scarts_jump_mode): jumping offset was computed
|
| 444 |
|
|
inversely, fixed this
|
| 445 |
|
|
(asm_file_end): added guarding to the include of libgcc.s so it
|
| 446 |
|
|
works always
|
| 447 |
|
|
|
| 448 |
|
|
2004-03-09 Wolfgang Puffitsch
|
| 449 |
|
|
|
| 450 |
|
|
* scarts.c (scarts_out_branch): changed prefix for labels which are
|
| 451 |
|
|
generated within insns, so that the convention now is the following:
|
| 452 |
|
|
"." for insn-generated labels, ".L" for normal
|
| 453 |
|
|
generated labels, "._" for labels from static
|
| 454 |
|
|
variables
|
| 455 |
|
|
|
| 456 |
|
|
* scarts.md: fixed allowable offsets for loading long and long long
|
| 457 |
|
|
values
|
| 458 |
|
|
Fixed a few typos that generated invalid memnonics.
|
| 459 |
|
|
|
| 460 |
|
|
* scarts.h (BASE_REG_CLASS): after fiddling around to get away the
|
| 461 |
|
|
"cannot find spill register" error, I changed this to
|
| 462 |
|
|
GENERAL_REGS, and it seems to work, but further checking has to be
|
| 463 |
|
|
done
|
| 464 |
|
|
|
| 465 |
|
|
2004-03-08 Wolfgang Puffitsch
|
| 466 |
|
|
|
| 467 |
|
|
* scarts.md: added patterns for moving floating point values (only
|
| 468 |
|
|
between already floating point items)
|
| 469 |
|
|
|
| 470 |
|
|
* scarts.h: tweaked costs for moves, so that HFmode is handled now
|
| 471 |
|
|
too
|
| 472 |
|
|
|
| 473 |
|
|
* scarts.md: (subxx3) Simplified subxx3 patterns because there is
|
| 474 |
|
|
no need for supporting constants due to canonicalisation.
|
| 475 |
|
|
(general) Substituted "nonmemory_operand" with "register_operand"
|
| 476 |
|
|
in some patterns that really support registers only.
|
