(zero_extendhisi2, extendhisi2): Expand to suitable byte sequence when
TARGET_SHORT_BYTES and loading a mem.
(movhi_bytes, extendhisi2_mem): New expands.
(movhi): Call movhi_bytes to load a short from memory if
TARGET_SHORT_BY_BYTES.
(all matchers loading a short from memory): Don't match if
TARGET_SHORT_BY_BYTES.
(matcher for movhi when TARGET_SHORT_BY_BYTES): New pattern to cover
remaining legal cases.
From-SVN: r8202
(TARGET_SWITCHES): Recognize switches -m[no-]short-load-bytes.
(TARGET_DEFAULT): Only define if not already done so.
(PROMOTE_MODE): Promote HImode unsigned if TARGET_SHORT_BY_BYTES.
(SECONDARY_INPUT_RELOAD_CLASS): Need a scratch for reloading HImode if
TARGET_SHORT_BY_BYTES.
From-SVN: r8200
(matchers for {store-flag, not-store-flag, neg-store-flag}): Output
if-false instruction first before if-true instruction.
(matcher for (AND store-flag x)): Only match if reversible_cc_register.
(matcher for (IF-THEN-ELSE reg (NOT reg))): Likewise.
From-SVN: r7741
include tree.h
(const_ok_for_arm): Add fast return for 0 or just a single non-zero bit.
(const_ok_for_op): New function.
(arm_split_constant): New function.
(arm_rtx_costs): New function.
(reg_or_int_operand): New function.
(shift_operator): Accept ROTATERT.
(multi_register_push): New function.
(shift_op): Don't abort if a constant is outside the acceptable range, but
convert the whole shift expression into something legal. If the shift is
zero, then return NULL.
(output_return_instruction): Output a call to abort if the function is
volatile.
(arm_volatile_func): New function.
(get_prologue_size): Remove all adjustments for insns that are now output as
rtx.
(output_func_prologue): Remove all code that outputs instructions, just print
a few comments.
(output_func_epilogue): Output a call to abort if a volatile function tries
to return.
(emit_multi_reg_push): New function.
(arm_expand_prologue): New function. Don't bother to push call-saved regs
if we will never return.
(arm_print_operand, case 'S'): If shift_op returns NULL, then no shift is
required.
From-SVN: r7537
(MODES_TIEABLE_P): All modes of the same class are tieable.
(CONST_OK_FOR_LETTER_P): Add 'M' for constants valid in a shift.
(FUNCTION_PROFILER): Don't call arm_increase_location.
(INITIAL_ELIMINATION_OFFSET): Call saved regs are no-longer pushed for
functions that don't return.
(LEGITIMIZE_ADDRESS): Push constants that will never be legitimate -- symbols
and labels -- into registers. Handle DImode better.
(DEFAULT_SIGNED_CHAR): Use unsigned unless already defined.
(RTX_COSTS): Call arm_rtx_costs.
(ADDRESS_COST): Since most operations have the same rtx cost, make the
more complex addresses cheaper.
(PREDICATE_CODES): Add ROTATERT to shift_operator; and new predicates for
reg_or_int_operand and multi_register_push.
(DBX_CONTIN_LENGTH): Only define if not already done.
(PRINT_OPERAND_ADDRESS): Let arm_print operand output the ", " for shifts.
From-SVN: r7536
(STARTFILE_SPEC): Look in the correct places for start files.
(LIB_SPEC): Define.
(LINK_SPEC): Define.
(TARGET_WHEN_DEBUGGING): Delete.
(DEFAULT_SIGNED_CHAR): Set to unsigned.
(SIZE_TYPE, PTRDIFF_TYPE, TARGET_EDOM): Define.
From-SVN: r7535
