expr.c (emit_block_move_via_libcall): Export.
* expr.c (emit_block_move_via_libcall): Export.
(clear_storage_via_libcall): Rename to ...
(set_storage_via_libcall): ... this one; handle arbitrary value to set.
(clear_storage): Update to set_storage_via_libcall.
* expr.h (emit_block_move_via_libcall): Declare
* config/i386/i386.h (stringop_alg): New enum.
(MAX_STRINGOP_ALGS): New constant.
(stringop_algs): New struct.
(processor_costs): Add memcpy/memset descriptors.
(TARGET_REP_MOVEL_OPTIMAL): Remove.
* config/i386/i386.md (movsi_insv_1_rex64): New pattern.
(strmovsi, strmovdi, strsetsi, strsetdi): Update; accept all operands
for memset.
* config/i386/i386.opt (minline-stringops-dynamically,
mstringop-strategy): New
parameters.
* config/i386/i386-prostos.h (ix86_expand_movmem): Update prototype.
(ix86_expand-clrmem): Rename to ...
(ix86_expand_setmem): ... this one; update prototype.
* config/i386/i386.c (DUMMY_STRINGOP_ALGS): New constant.
(size_cost, i386_cost, i486_cost, pentium_cost, pentiumpro_cost,
geode_cost, k6_cost, athlon_cost, k8_cost, pentium4_cost,
nocona_cost, core2_cost, generic_cost, generic64_cost,
generic32_cost): Add memcpy/memset descriptors.
(x86_rep_movl_optimal): Remove.
(stringop_alg): New static variable.
(ix86_expand_aligntest): Handle predictions.
(override_options): Add strgop_alg handling.
(predict_jump): New function.
(scale_counter): New function.
(expand_set_or_movmem_via_loop): New function.
(expand_movmem_via_rep_mov): New function.
(expand_setmem_via_rep_stots): New function.
(emit_strmov): New function.
(expand_movmem_epilogue): New function.
(expand_setmem_epilogue_via_loop): New function.
(expand_setmem_epilogue): New function.
(expand_movmem_prologue): New function.
(expand_setmem_prologue): New function.
(decide_alg): New function.
(decide_alignment): New function.
(ix86_exand_movmem): Rewrite.
(promote_duplicated_reg): New function.
(ix86_expand_clrmem): Rename to ...
(ix86_expand_setmem): ... this one. Rewrite.
* invoke.texi (minline-stringops-dynamically): New command line option.
(mstringop-strategy): Likewise.
From-SVN: r119252
12 files changed: