Hi, This patch moves sh to TARGET_USE_BY_PIECES_INFRASTRUCTURE_P.
For sh, STORE_BY_PIECES and SET_BY_PIECES share an implementation, MOVE_BY_PIECES is different. Implement as so, and use the default implementation for CLEAR_BY_PIECES. I tried building a compiler and there were no fires, but otherwise, I have no reasonable way to test this patch. If one of the sh maintainers wants to pick it up and test it, that would be much appreciated. Thanks, James --- gcc/ 2014-10-31 James Greenhalgh <james.greenha...@arm.com> * config/sh/sh.c (TARGET_USE_BY_PIECES_INFRASTRUCTURE_P): New. (sh_use_by_pieces_infrastructure_p): Likewise. * config/sh/sh.h (MOVE_BY_PIECES_P): Remove. (STORE_BY_PIECES_P): Likewise. (SET_BY_PIECES_P): Likewise.
diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c index 1dc1bf4..3bbbd23 100644 --- a/gcc/config/sh/sh.c +++ b/gcc/config/sh/sh.c @@ -338,6 +338,10 @@ static void sh_conditional_register_usage (void); static bool sh_legitimate_constant_p (machine_mode, rtx); static int mov_insn_size (machine_mode, bool); static int mov_insn_alignment_mask (machine_mode, bool); +static bool sh_use_by_pieces_infrastructure_p (unsigned int, + unsigned int, + enum by_pieces_operation, + bool); static bool sequence_insn_p (rtx_insn *); static void sh_canonicalize_comparison (int *, rtx *, rtx *, bool); static void sh_canonicalize_comparison (enum rtx_code&, rtx&, rtx&, @@ -640,6 +644,10 @@ static const struct attribute_spec sh_attribute_table[] = #undef TARGET_FIXED_CONDITION_CODE_REGS #define TARGET_FIXED_CONDITION_CODE_REGS sh_fixed_condition_code_regs +#undef TARGET_USE_BY_PIECES_INFRASTRUCTURE_P +#define TARGET_USE_BY_PIECES_INFRASTRUCTURE_P \ + sh_use_by_pieces_infrastructure_p + /* Machine-specific symbol_ref flags. */ #define SYMBOL_FLAG_FUNCVEC_FUNCTION (SYMBOL_FLAG_MACH_DEP << 0) @@ -13674,4 +13682,27 @@ sh_mode_priority (int entity ATTRIBUTE_UNUSED, int n) return ((TARGET_FPU_SINGLE != 0) ^ (n) ? FP_MODE_SINGLE : FP_MODE_DOUBLE); } +/* Implement TARGET_USE_BY_PIECES_INFRASTRUCTURE_P. */ + +static bool +sh_use_by_pieces_infrastructure_p (unsigned int size, + unsigned int align, + enum by_pieces_operation op, + bool speed_p) +{ + switch (op) + { + case MOVE_BY_PIECES: + return move_by_pieces_ninsns (size, align, MOVE_MAX_PIECES + 1) + < (!speed_p ? 2 : (align >= 32) ? 16 : 2); + case STORE_BY_PIECES: + case SET_BY_PIECES: + return move_by_pieces_ninsns (size, align, STORE_MAX_PIECES + 1) + < (!speed_p ? 2 : (align >= 32) ? 16 : 2); + default: + return default_use_by_pieces_infrastructure_p (size, align, + op, speed_p); + } +} + #include "gt-sh.h" diff --git a/gcc/config/sh/sh.h b/gcc/config/sh/sh.h index 5b8b4a1..92835d7 100644 --- a/gcc/config/sh/sh.h +++ b/gcc/config/sh/sh.h @@ -1591,16 +1591,6 @@ struct sh_args { #define USE_STORE_PRE_DECREMENT(mode) ((mode == SImode || mode == DImode) \ ? 0 : TARGET_SH1) -#define MOVE_BY_PIECES_P(SIZE, ALIGN) \ - (move_by_pieces_ninsns (SIZE, ALIGN, MOVE_MAX_PIECES + 1) \ - < (optimize_size ? 2 : ((ALIGN >= 32) ? 16 : 2))) - -#define STORE_BY_PIECES_P(SIZE, ALIGN) \ - (move_by_pieces_ninsns (SIZE, ALIGN, STORE_MAX_PIECES + 1) \ - < (optimize_size ? 2 : ((ALIGN >= 32) ? 16 : 2))) - -#define SET_BY_PIECES_P(SIZE, ALIGN) STORE_BY_PIECES_P(SIZE, ALIGN) - /* If a memory clear move would take CLEAR_RATIO or more simple move-instruction pairs, we will do a setmem instead. */