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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@219188 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@206289 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@195098 138bc75d-0d04-0410-961f-82ee72b054a4
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git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@194903 138bc75d-0d04-0410-961f-82ee72b054a4
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Rewrite to look at comparison codes, not arithmetic codes.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@168915 138bc75d-0d04-0410-961f-82ee72b054a4
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when pushing accumulator register.
(rx_get_stack_layout): Always save call clobbered registers inside
interrupt handlers.
* config/rx/rx-modes.def: Fix descriptive comment at start of file.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@163720 138bc75d-0d04-0410-961f-82ee72b054a4
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* config/rx/rx.h (FIRST_PSEUDO_REGISTER): Increase to 17.
(CC_REGNUM): Define.
(FIXED_REGISTERS, CALL_USED_REGISTERS, REGISTER_NAMES): Add cc
register.
(CC_NO_CARRY, NOTICE_UPDATE_CC): Delete.
(SELECT_CC_MODE): Define.
* config/rx/rx.md (CC_REG): Define. Update all patterns to use
(reg:CC CC_REG) instead of (cc0).
(attr "cc"): Delete.
(cbranchsi4): Do not split compare and branch here. Instead move
it to...
(cbranchsi4_<code>): ... here. New patterns.
(cmpsi): Call rx-compare_redundant to find out if it is necessary
to emit the compare instruction.
* config/rx/rx.c (rx_gen-cond_branch_template): Remove tests of
cc_status flags.
(rx_get_stack_layout): Iterate up to before CC_REGNUM not
FIRST_PSEUDO_REGNUM.
(rx_expand_prologue, rx_expand_epilogue): Likewise.
(rx_notice_update_cc): Delete.
(rx_cc_modes_compatible): New function.
(flags_needed_for_conditional): New function.
(flags_from_mode): New function.
(rx_compare_redundant): New function - scans backwards through
insn list to find out if condition flags are already set
correctly.
(TARGET_CC_MODES_COMPATIBLE): Define.
* config/rx/rx-protos.h (rx_compare_redundant): Prototype.
* config/rx/rx.h (BRANCH_COST): Define.
(REGISTER_MOVE_COST): Define.
* config/rx/predicates (rx_source_operand): Allow all constant
types.
* config/rx/rx.md (addsi3): Add alternative for swapped operands.
(tstsi4): New pattern.
* config/rx/rx.c (rx_memory_move_cost): Define.
(TARGET_MEMORY_MOVE_COST): Define.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@161592 138bc75d-0d04-0410-961f-82ee72b054a4
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