From: Segher Boessenkool Date: Fri, 12 Jan 2018 20:50:52 +0000 (+0100) Subject: rs6000: Remove -mstring X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=20c89ab7c5091ee48535392cae2177aa1a1c43eb;p=gcc.git rs6000: Remove -mstring -mstring is only enabled by default on 601, and with -Os on some configurations. It is almost always slower (than not using it) and does not very often lead to smaller code. This patch disables it. If a user uses -mstring he gets a warning (but not with -mno-string). I left the target attribute in place, it just doesn't do anything anymore. The patch also deletes a whole bunch of code. The 'N' and 'O' output modifiers are now unused, but now is not the time to delete them. * config/rs6000/predicates.md (load_multiple_operation): Delete. (store_multiple_operation): Delete. * config/rs6000/rs6000-cpus.def (601): Remove MASK_STRING. * config/rs6000/rs6000-protos.h (rs6000_output_load_multiple): Delete. * config/rs6000/rs6000-string.c (expand_block_move): Delete everything guarded by TARGET_STRING. (rs6000_output_load_multiple): Delete. * config/rs6000/rs6000.c (rs6000_option_override_internal): Delete OPTION_MASK_STRING / TARGET_STRING handling. (print_operand) <'N', 'O'>: Add comment that these are unused now. (const rs6000_opt_masks) <"string">: Change mask to 0. * config/rs6000/rs6000.h (TARGET_DEFAULT): Remove MASK_STRING. (MASK_STRING): Delete. * config/rs6000/rs6000.md (*mov_string): Delete TARGET_STRING parts. Simplify. (load_multiple): Delete. (*ldmsi8): Delete. (*ldmsi7): Delete. (*ldmsi6): Delete. (*ldmsi5): Delete. (*ldmsi4): Delete. (*ldmsi3): Delete. (store_multiple): Delete. (*stmsi8): Delete. (*stmsi7): Delete. (*stmsi6): Delete. (*stmsi5): Delete. (*stmsi4): Delete. (*stmsi3): Delete. (movmemsi_8reg): Delete. (corresponding unnamed define_insn): Delete. (movmemsi_6reg): Delete. (corresponding unnamed define_insn): Delete. (movmemsi_4reg): Delete. (corresponding unnamed define_insn): Delete. (movmemsi_2reg): Delete. (corresponding unnamed define_insn): Delete. (movmemsi_1reg): Delete. (corresponding unnamed define_insn): Delete. * config/rs6000/rs6000.opt (mno-string): New. (mstring): Replace by deprecation warning stub. * doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mstring. From-SVN: r256598 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d3bd1442588..9316f568c91 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,48 @@ +2018-01-12 Segher Boessenkool + + * config/rs6000/predicates.md (load_multiple_operation): Delete. + (store_multiple_operation): Delete. + * config/rs6000/rs6000-cpus.def (601): Remove MASK_STRING. + * config/rs6000/rs6000-protos.h (rs6000_output_load_multiple): Delete. + * config/rs6000/rs6000-string.c (expand_block_move): Delete everything + guarded by TARGET_STRING. + (rs6000_output_load_multiple): Delete. + * config/rs6000/rs6000.c (rs6000_option_override_internal): Delete + OPTION_MASK_STRING / TARGET_STRING handling. + (print_operand) <'N', 'O'>: Add comment that these are unused now. + (const rs6000_opt_masks) <"string">: Change mask to 0. + * config/rs6000/rs6000.h (TARGET_DEFAULT): Remove MASK_STRING. + (MASK_STRING): Delete. + * config/rs6000/rs6000.md (*mov_string): Delete TARGET_STRING + parts. Simplify. + (load_multiple): Delete. + (*ldmsi8): Delete. + (*ldmsi7): Delete. + (*ldmsi6): Delete. + (*ldmsi5): Delete. + (*ldmsi4): Delete. + (*ldmsi3): Delete. + (store_multiple): Delete. + (*stmsi8): Delete. + (*stmsi7): Delete. + (*stmsi6): Delete. + (*stmsi5): Delete. + (*stmsi4): Delete. + (*stmsi3): Delete. + (movmemsi_8reg): Delete. + (corresponding unnamed define_insn): Delete. + (movmemsi_6reg): Delete. + (corresponding unnamed define_insn): Delete. + (movmemsi_4reg): Delete. + (corresponding unnamed define_insn): Delete. + (movmemsi_2reg): Delete. + (corresponding unnamed define_insn): Delete. + (movmemsi_1reg): Delete. + (corresponding unnamed define_insn): Delete. + * config/rs6000/rs6000.opt (mno-string): New. + (mstring): Replace by deprecation warning stub. + * doc/invoke.texi (RS/6000 and PowerPC Options): Delete -mstring. + 2018-01-12 Jakub Jelinek * regrename.c (regrename_do_replace): If replacing the same diff --git a/gcc/config/rs6000/predicates.md b/gcc/config/rs6000/predicates.md index 0055236c549..b6d18f31072 100644 --- a/gcc/config/rs6000/predicates.md +++ b/gcc/config/rs6000/predicates.md @@ -1220,85 +1220,6 @@ (and (match_operand 0 "branch_comparison_operator") (match_code "eq,lt,gt,ltu,gtu,unordered"))) -;; Return 1 if OP is a load multiple operation, known to be a PARALLEL. -(define_predicate "load_multiple_operation" - (match_code "parallel") -{ - int count = XVECLEN (op, 0); - unsigned int dest_regno; - rtx src_addr; - int i; - - /* Perform a quick check so we don't blow up below. */ - if (count <= 1 - || GET_CODE (XVECEXP (op, 0, 0)) != SET - || GET_CODE (SET_DEST (XVECEXP (op, 0, 0))) != REG - || GET_CODE (SET_SRC (XVECEXP (op, 0, 0))) != MEM) - return 0; - - dest_regno = REGNO (SET_DEST (XVECEXP (op, 0, 0))); - src_addr = XEXP (SET_SRC (XVECEXP (op, 0, 0)), 0); - - for (i = 1; i < count; i++) - { - rtx elt = XVECEXP (op, 0, i); - - if (GET_CODE (elt) != SET - || GET_CODE (SET_DEST (elt)) != REG - || GET_MODE (SET_DEST (elt)) != SImode - || REGNO (SET_DEST (elt)) != dest_regno + i - || GET_CODE (SET_SRC (elt)) != MEM - || GET_MODE (SET_SRC (elt)) != SImode - || GET_CODE (XEXP (SET_SRC (elt), 0)) != PLUS - || ! rtx_equal_p (XEXP (XEXP (SET_SRC (elt), 0), 0), src_addr) - || GET_CODE (XEXP (XEXP (SET_SRC (elt), 0), 1)) != CONST_INT - || INTVAL (XEXP (XEXP (SET_SRC (elt), 0), 1)) != i * 4) - return 0; - } - - return 1; -}) - -;; Return 1 if OP is a store multiple operation, known to be a PARALLEL. -;; The second vector element is a CLOBBER. -(define_predicate "store_multiple_operation" - (match_code "parallel") -{ - int count = XVECLEN (op, 0) - 1; - unsigned int src_regno; - rtx dest_addr; - int i; - - /* Perform a quick check so we don't blow up below. */ - if (count <= 1 - || GET_CODE (XVECEXP (op, 0, 0)) != SET - || GET_CODE (SET_DEST (XVECEXP (op, 0, 0))) != MEM - || GET_CODE (SET_SRC (XVECEXP (op, 0, 0))) != REG) - return 0; - - src_regno = REGNO (SET_SRC (XVECEXP (op, 0, 0))); - dest_addr = XEXP (SET_DEST (XVECEXP (op, 0, 0)), 0); - - for (i = 1; i < count; i++) - { - rtx elt = XVECEXP (op, 0, i + 1); - - if (GET_CODE (elt) != SET - || GET_CODE (SET_SRC (elt)) != REG - || GET_MODE (SET_SRC (elt)) != SImode - || REGNO (SET_SRC (elt)) != src_regno + i - || GET_CODE (SET_DEST (elt)) != MEM - || GET_MODE (SET_DEST (elt)) != SImode - || GET_CODE (XEXP (SET_DEST (elt), 0)) != PLUS - || ! rtx_equal_p (XEXP (XEXP (SET_DEST (elt), 0), 0), dest_addr) - || GET_CODE (XEXP (XEXP (SET_DEST (elt), 0), 1)) != CONST_INT - || INTVAL (XEXP (XEXP (SET_DEST (elt), 0), 1)) != i * 4) - return 0; - } - - return 1; -}) - ;; Return 1 if OP is valid for a save_world call in prologue, known to be ;; a PARLLEL. (define_predicate "save_world_operation" diff --git a/gcc/config/rs6000/rs6000-cpus.def b/gcc/config/rs6000/rs6000-cpus.def index b3dc3ab5b50..50e4c75e7f4 100644 --- a/gcc/config/rs6000/rs6000-cpus.def +++ b/gcc/config/rs6000/rs6000-cpus.def @@ -169,7 +169,7 @@ RS6000_CPU ("476fp", PROCESSOR_PPC476, MASK_PPC_GFXOPT | MASK_MFCRF | MASK_POPCNTB | MASK_FPRND | MASK_CMPB | MASK_MULHW | MASK_DLMZB) RS6000_CPU ("505", PROCESSOR_MPCCORE, 0) -RS6000_CPU ("601", PROCESSOR_PPC601, MASK_MULTIPLE | MASK_STRING) +RS6000_CPU ("601", PROCESSOR_PPC601, MASK_MULTIPLE) RS6000_CPU ("602", PROCESSOR_PPC603, MASK_PPC_GFXOPT) RS6000_CPU ("603", PROCESSOR_PPC603, MASK_PPC_GFXOPT) RS6000_CPU ("603e", PROCESSOR_PPC603, MASK_PPC_GFXOPT) diff --git a/gcc/config/rs6000/rs6000-protos.h b/gcc/config/rs6000/rs6000-protos.h index a6c9db92d95..1f96005c010 100644 --- a/gcc/config/rs6000/rs6000-protos.h +++ b/gcc/config/rs6000/rs6000-protos.h @@ -77,7 +77,6 @@ extern int expand_block_clear (rtx[]); extern int expand_block_move (rtx[]); extern bool expand_block_compare (rtx[]); extern bool expand_strn_compare (rtx[], int); -extern const char * rs6000_output_load_multiple (rtx[]); extern bool rs6000_is_valid_mask (rtx, int *, int *, machine_mode); extern bool rs6000_is_valid_and_mask (rtx, machine_mode); extern bool rs6000_is_valid_shift_mask (rtx, rtx, machine_mode); diff --git a/gcc/config/rs6000/rs6000-string.c b/gcc/config/rs6000/rs6000-string.c index 815c45465e7..e817f3db200 100644 --- a/gcc/config/rs6000/rs6000-string.c +++ b/gcc/config/rs6000/rs6000-string.c @@ -2234,42 +2234,6 @@ expand_block_move (rtx operands[]) mode = V4SImode; gen_func.mov = gen_movv4si; } - else if (TARGET_STRING - && bytes > 24 /* move up to 32 bytes at a time */ - && ! fixed_regs[5] - && ! fixed_regs[6] - && ! fixed_regs[7] - && ! fixed_regs[8] - && ! fixed_regs[9] - && ! fixed_regs[10] - && ! fixed_regs[11] - && ! fixed_regs[12]) - { - move_bytes = (bytes > 32) ? 32 : bytes; - gen_func.movmemsi = gen_movmemsi_8reg; - } - else if (TARGET_STRING - && bytes > 16 /* move up to 24 bytes at a time */ - && ! fixed_regs[5] - && ! fixed_regs[6] - && ! fixed_regs[7] - && ! fixed_regs[8] - && ! fixed_regs[9] - && ! fixed_regs[10]) - { - move_bytes = (bytes > 24) ? 24 : bytes; - gen_func.movmemsi = gen_movmemsi_6reg; - } - else if (TARGET_STRING - && bytes > 8 /* move up to 16 bytes at a time */ - && ! fixed_regs[5] - && ! fixed_regs[6] - && ! fixed_regs[7] - && ! fixed_regs[8]) - { - move_bytes = (bytes > 16) ? 16 : bytes; - gen_func.movmemsi = gen_movmemsi_4reg; - } else if (bytes >= 8 && TARGET_POWERPC64 && (align >= 64 || !STRICT_ALIGNMENT)) { @@ -2302,11 +2266,6 @@ expand_block_move (rtx operands[]) } } } - else if (TARGET_STRING && bytes > 4 && !TARGET_POWERPC64) - { /* move up to 8 bytes at a time */ - move_bytes = (bytes > 8) ? 8 : bytes; - gen_func.movmemsi = gen_movmemsi_2reg; - } else if (bytes >= 4 && (align >= 32 || !STRICT_ALIGNMENT)) { /* move 4 bytes */ move_bytes = 4; @@ -2319,11 +2278,6 @@ expand_block_move (rtx operands[]) mode = HImode; gen_func.mov = gen_movhi; } - else if (TARGET_STRING && bytes > 1) - { /* move up to 4 bytes at a time */ - move_bytes = (bytes > 4) ? 4 : bytes; - gen_func.movmemsi = gen_movmemsi_1reg; - } else /* move 1 byte at a time */ { move_bytes = 1; @@ -2376,61 +2330,3 @@ expand_block_move (rtx operands[]) return 1; } - - -/* Return a string to perform a load_multiple operation. - operands[0] is the vector. - operands[1] is the source address. - operands[2] is the first destination register. */ - -const char * -rs6000_output_load_multiple (rtx operands[3]) -{ - /* We have to handle the case where the pseudo used to contain the address - is assigned to one of the output registers. */ - int i, j; - int words = XVECLEN (operands[0], 0); - rtx xop[10]; - - if (XVECLEN (operands[0], 0) == 1) - return "lwz %2,0(%1)"; - - for (i = 0; i < words; i++) - if (refers_to_regno_p (REGNO (operands[2]) + i, operands[1])) - { - if (i == words-1) - { - xop[0] = GEN_INT (4 * (words-1)); - xop[1] = operands[1]; - xop[2] = operands[2]; - output_asm_insn ("lswi %2,%1,%0\n\tlwz %1,%0(%1)", xop); - return ""; - } - else if (i == 0) - { - xop[0] = GEN_INT (4 * (words-1)); - xop[1] = operands[1]; - xop[2] = gen_rtx_REG (SImode, REGNO (operands[2]) + 1); - output_asm_insn ("addi %1,%1,4\n\tlswi %2,%1,%0\n\tlwz %1,-4(%1)", xop); - return ""; - } - else - { - for (j = 0; j < words; j++) - if (j != i) - { - xop[0] = GEN_INT (j * 4); - xop[1] = operands[1]; - xop[2] = gen_rtx_REG (SImode, REGNO (operands[2]) + j); - output_asm_insn ("lwz %2,%0(%1)", xop); - } - xop[0] = GEN_INT (i * 4); - xop[1] = operands[1]; - output_asm_insn ("lwz %1,%0(%1)", xop); - return ""; - } - } - - return "lswi %2,%1,%N0"; -} - diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c index 840b83c6e10..09bb2d0c7bb 100644 --- a/gcc/config/rs6000/rs6000.c +++ b/gcc/config/rs6000/rs6000.c @@ -4204,34 +4204,21 @@ rs6000_option_override_internal (bool global_init_p) } /* If we are optimizing big endian systems for space, use the load/store - multiple and string instructions. */ + multiple instructions. */ if (BYTES_BIG_ENDIAN && optimize_size) - rs6000_isa_flags |= ~rs6000_isa_flags_explicit & (OPTION_MASK_MULTIPLE - | OPTION_MASK_STRING); + rs6000_isa_flags |= ~rs6000_isa_flags_explicit & OPTION_MASK_MULTIPLE; - /* Don't allow -mmultiple or -mstring on little endian systems - unless the cpu is a 750, because the hardware doesn't support the - instructions used in little endian mode, and causes an alignment - trap. The 750 does not cause an alignment trap (except when the - target is unaligned). */ + /* Don't allow -mmultiple on little endian systems unless the cpu is a 750, + because the hardware doesn't support the instructions used in little + endian mode, and causes an alignment trap. The 750 does not cause an + alignment trap (except when the target is unaligned). */ - if (!BYTES_BIG_ENDIAN && rs6000_cpu != PROCESSOR_PPC750) + if (!BYTES_BIG_ENDIAN && rs6000_cpu != PROCESSOR_PPC750 && TARGET_MULTIPLE) { - if (TARGET_MULTIPLE) - { - rs6000_isa_flags &= ~OPTION_MASK_MULTIPLE; - if ((rs6000_isa_flags_explicit & OPTION_MASK_MULTIPLE) != 0) - warning (0, "%qs is not supported on little endian systems", - "-mmultiple"); - } - - if (TARGET_STRING) - { - rs6000_isa_flags &= ~OPTION_MASK_STRING; - if ((rs6000_isa_flags_explicit & OPTION_MASK_STRING) != 0) - warning (0, "%qs is not supported on little endian systems", - "-mstring"); - } + rs6000_isa_flags &= ~OPTION_MASK_MULTIPLE; + if ((rs6000_isa_flags_explicit & OPTION_MASK_MULTIPLE) != 0) + warning (0, "%qs is not supported on little endian systems", + "-mmultiple"); } /* If little-endian, default to -mstrict-align on older processors. @@ -4812,9 +4799,7 @@ rs6000_option_override_internal (bool global_init_p) rs6000_print_isa_options (stderr, 0, "after subtarget", rs6000_isa_flags); /* For the E500 family of cores, reset the single/double FP flags to let us - check that they remain constant across attributes or pragmas. Also, - clear a possible request for string instructions, not supported and which - we might have silently queried above for -Os. */ + check that they remain constant across attributes or pragmas. */ switch (rs6000_cpu) { @@ -4826,7 +4811,6 @@ rs6000_option_override_internal (bool global_init_p) case PROCESSOR_PPCE6500: rs6000_single_float = 0; rs6000_double_float = 0; - rs6000_isa_flags &= ~OPTION_MASK_STRING; break; default: @@ -21371,7 +21355,7 @@ print_operand (FILE *file, rtx x, int code) } return; - case 'N': + case 'N': /* Unused */ /* Write the number of elements in the vector times 4. */ if (GET_CODE (x) != PARALLEL) output_operand_lossage ("invalid %%N value"); @@ -21379,7 +21363,7 @@ print_operand (FILE *file, rtx x, int code) fprintf (file, "%d", XVECLEN (x, 0) * 4); return; - case 'O': + case 'O': /* Unused */ /* Similar, but subtract 1 first. */ if (GET_CODE (x) != PARALLEL) output_operand_lossage ("invalid %%O value"); @@ -36633,7 +36617,7 @@ static struct rs6000_opt_mask const rs6000_opt_masks[] = { "quad-memory-atomic", OPTION_MASK_QUAD_MEMORY_ATOMIC, false, true }, { "recip-precision", OPTION_MASK_RECIP_PRECISION, false, true }, { "save-toc-indirect", OPTION_MASK_SAVE_TOC_INDIRECT, false, true }, - { "string", OPTION_MASK_STRING, false, true }, + { "string", 0, false, true }, { "toc-fusion", OPTION_MASK_TOC_FUSION, false, true }, { "update", OPTION_MASK_NO_UPDATE, true , true }, { "vsx", OPTION_MASK_VSX, false, true }, @@ -36660,7 +36644,7 @@ static struct rs6000_opt_mask const rs6000_opt_masks[] = { "strict-align", OPTION_MASK_STRICT_ALIGN, false, false }, #endif { "soft-float", OPTION_MASK_SOFT_FLOAT, false, false }, - { "string", OPTION_MASK_STRING, false, false }, + { "string", 0, false, false }, }; /* Builtin mask mapping for printing the flags. */ diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h index 3bffa298355..77b75dd756c 100644 --- a/gcc/config/rs6000/rs6000.h +++ b/gcc/config/rs6000/rs6000.h @@ -380,7 +380,7 @@ extern const char *host_detect_local_cpu (int argc, const char **argv); /* The option machinery will define this. */ #endif -#define TARGET_DEFAULT (MASK_MULTIPLE | MASK_STRING) +#define TARGET_DEFAULT (MASK_MULTIPLE) /* FPU operations supported. Each use of TARGET_SINGLE_FLOAT or TARGET_DOUBLE_FLOAT must @@ -658,7 +658,6 @@ extern int rs6000_vector_align[]; #define MASK_RECIP_PRECISION OPTION_MASK_RECIP_PRECISION #define MASK_SOFT_FLOAT OPTION_MASK_SOFT_FLOAT #define MASK_STRICT_ALIGN OPTION_MASK_STRICT_ALIGN -#define MASK_STRING OPTION_MASK_STRING #define MASK_UPDATE OPTION_MASK_UPDATE #define MASK_VSX OPTION_MASK_VSX diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md index 6b9de4262b6..b2e4bad6c35 100644 --- a/gcc/config/rs6000/rs6000.md +++ b/gcc/config/rs6000/rs6000.md @@ -8765,37 +8765,11 @@ && (mode != TImode || VECTOR_MEM_NONE_P (TImode)) && (gpc_reg_operand (operands[0], mode) || gpc_reg_operand (operands[1], mode))" - "* -{ - switch (which_alternative) - { - default: - gcc_unreachable (); - case 0: - if (TARGET_STRING) - return \"stswi %1,%P0,16\"; - /* FALLTHRU */ - case 1: - return \"#\"; - case 2: - /* If the address is not used in the output, we can use lsi. Otherwise, - fall through to generating four loads. */ - if (TARGET_STRING - && ! reg_overlap_mentioned_p (operands[0], operands[1])) - return \"lswi %0,%P1,16\"; - /* fall through */ - case 3: - case 4: - case 5: - return \"#\"; - } -}" + "#" [(set_attr "type" "store,store,load,load,*,*") (set_attr "update" "yes") (set_attr "indexed" "yes") - (set (attr "cell_micro") (if_then_else (match_test "TARGET_STRING") - (const_string "always") - (const_string "conditional")))]) + (set_attr "cell_micro" "conditional")]) (define_insn "*mov_ppc64" [(set (match_operand:TI2 0 "nonimmediate_operand" "=wQ,Y,r,r,r,r") @@ -8847,337 +8821,6 @@ [(pc)] { rs6000_split_multireg_move (operands[0], operands[1]); DONE; }) -(define_expand "load_multiple" - [(match_par_dup 3 [(set (match_operand:SI 0 "" "") - (match_operand:SI 1 "" "")) - (use (match_operand:SI 2 "" ""))])] - "TARGET_STRING && !TARGET_POWERPC64" - " -{ - int regno; - int count; - rtx op1; - int i; - - /* Support only loading a constant number of fixed-point registers from - memory and only bother with this if more than two; the machine - doesn't support more than eight. */ - if (GET_CODE (operands[2]) != CONST_INT - || INTVAL (operands[2]) <= 2 - || INTVAL (operands[2]) > 8 - || GET_CODE (operands[1]) != MEM - || GET_CODE (operands[0]) != REG - || REGNO (operands[0]) >= 32) - FAIL; - - count = INTVAL (operands[2]); - regno = REGNO (operands[0]); - - operands[3] = gen_rtx_PARALLEL (VOIDmode, rtvec_alloc (count)); - op1 = replace_equiv_address (operands[1], - force_reg (SImode, XEXP (operands[1], 0))); - - for (i = 0; i < count; i++) - XVECEXP (operands[3], 0, i) - = gen_rtx_SET (gen_rtx_REG (SImode, regno + i), - adjust_address_nv (op1, SImode, i * 4)); -}") - -(define_insn "*ldmsi8" - [(match_parallel 0 "load_multiple_operation" - [(set (match_operand:SI 2 "gpc_reg_operand" "") - (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b"))) - (set (match_operand:SI 3 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 4)))) - (set (match_operand:SI 4 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 8)))) - (set (match_operand:SI 5 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 12)))) - (set (match_operand:SI 6 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 16)))) - (set (match_operand:SI 7 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 20)))) - (set (match_operand:SI 8 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 24)))) - (set (match_operand:SI 9 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 28))))])] - "TARGET_STRING && XVECLEN (operands[0], 0) == 8" - "* -{ return rs6000_output_load_multiple (operands); }" - [(set_attr "type" "load") - (set_attr "update" "yes") - (set_attr "indexed" "yes") - (set_attr "length" "32")]) - -(define_insn "*ldmsi7" - [(match_parallel 0 "load_multiple_operation" - [(set (match_operand:SI 2 "gpc_reg_operand" "") - (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b"))) - (set (match_operand:SI 3 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 4)))) - (set (match_operand:SI 4 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 8)))) - (set (match_operand:SI 5 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 12)))) - (set (match_operand:SI 6 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 16)))) - (set (match_operand:SI 7 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 20)))) - (set (match_operand:SI 8 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 24))))])] - "TARGET_STRING && XVECLEN (operands[0], 0) == 7" - "* -{ return rs6000_output_load_multiple (operands); }" - [(set_attr "type" "load") - (set_attr "update" "yes") - (set_attr "indexed" "yes") - (set_attr "length" "32")]) - -(define_insn "*ldmsi6" - [(match_parallel 0 "load_multiple_operation" - [(set (match_operand:SI 2 "gpc_reg_operand" "") - (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b"))) - (set (match_operand:SI 3 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 4)))) - (set (match_operand:SI 4 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 8)))) - (set (match_operand:SI 5 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 12)))) - (set (match_operand:SI 6 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 16)))) - (set (match_operand:SI 7 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 20))))])] - "TARGET_STRING && XVECLEN (operands[0], 0) == 6" - "* -{ return rs6000_output_load_multiple (operands); }" - [(set_attr "type" "load") - (set_attr "update" "yes") - (set_attr "indexed" "yes") - (set_attr "length" "32")]) - -(define_insn "*ldmsi5" - [(match_parallel 0 "load_multiple_operation" - [(set (match_operand:SI 2 "gpc_reg_operand" "") - (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b"))) - (set (match_operand:SI 3 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 4)))) - (set (match_operand:SI 4 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 8)))) - (set (match_operand:SI 5 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 12)))) - (set (match_operand:SI 6 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 16))))])] - "TARGET_STRING && XVECLEN (operands[0], 0) == 5" - "* -{ return rs6000_output_load_multiple (operands); }" - [(set_attr "type" "load") - (set_attr "update" "yes") - (set_attr "indexed" "yes") - (set_attr "length" "32")]) - -(define_insn "*ldmsi4" - [(match_parallel 0 "load_multiple_operation" - [(set (match_operand:SI 2 "gpc_reg_operand" "") - (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b"))) - (set (match_operand:SI 3 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 4)))) - (set (match_operand:SI 4 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 8)))) - (set (match_operand:SI 5 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 12))))])] - "TARGET_STRING && XVECLEN (operands[0], 0) == 4" - "* -{ return rs6000_output_load_multiple (operands); }" - [(set_attr "type" "load") - (set_attr "update" "yes") - (set_attr "indexed" "yes") - (set_attr "length" "32")]) - -(define_insn "*ldmsi3" - [(match_parallel 0 "load_multiple_operation" - [(set (match_operand:SI 2 "gpc_reg_operand" "") - (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b"))) - (set (match_operand:SI 3 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 4)))) - (set (match_operand:SI 4 "gpc_reg_operand" "") - (mem:SI (plus:SI (match_dup 1) (const_int 8))))])] - "TARGET_STRING && XVECLEN (operands[0], 0) == 3" - "* -{ return rs6000_output_load_multiple (operands); }" - [(set_attr "type" "load") - (set_attr "update" "yes") - (set_attr "indexed" "yes") - (set_attr "length" "32")]) - -(define_expand "store_multiple" - [(match_par_dup 3 [(set (match_operand:SI 0 "" "") - (match_operand:SI 1 "" "")) - (clobber (scratch:SI)) - (use (match_operand:SI 2 "" ""))])] - "TARGET_STRING && !TARGET_POWERPC64" - " -{ - int regno; - int count; - rtx to; - rtx op0; - int i; - - /* Support only storing a constant number of fixed-point registers to - memory and only bother with this if more than two; the machine - doesn't support more than eight. */ - if (GET_CODE (operands[2]) != CONST_INT - || INTVAL (operands[2]) <= 2 - || INTVAL (operands[2]) > 8 - || GET_CODE (operands[0]) != MEM - || GET_CODE (operands[1]) != REG - || REGNO (operands[1]) >= 32) - FAIL; - - count = INTVAL (operands[2]); - regno = REGNO (operands[1]); - - operands[3] = gen_rtx_PARALLEL (VOIDmode, rtvec_alloc (count + 1)); - to = force_reg (SImode, XEXP (operands[0], 0)); - op0 = replace_equiv_address (operands[0], to); - - XVECEXP (operands[3], 0, 0) - = gen_rtx_SET (adjust_address_nv (op0, SImode, 0), operands[1]); - XVECEXP (operands[3], 0, 1) = gen_rtx_CLOBBER (VOIDmode, - gen_rtx_SCRATCH (SImode)); - - for (i = 1; i < count; i++) - XVECEXP (operands[3], 0, i + 1) - = gen_rtx_SET (adjust_address_nv (op0, SImode, i * 4), - gen_rtx_REG (SImode, regno + i)); -}") - -(define_insn "*stmsi8" - [(match_parallel 0 "store_multiple_operation" - [(set (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b")) - (match_operand:SI 2 "gpc_reg_operand" "r")) - (clobber (match_scratch:SI 3 "=X")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 4))) - (match_operand:SI 4 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 8))) - (match_operand:SI 5 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 12))) - (match_operand:SI 6 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 16))) - (match_operand:SI 7 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 20))) - (match_operand:SI 8 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 24))) - (match_operand:SI 9 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 28))) - (match_operand:SI 10 "gpc_reg_operand" "r"))])] - "TARGET_STRING && XVECLEN (operands[0], 0) == 9" - "stswi %2,%1,%O0" - [(set_attr "type" "store") - (set_attr "update" "yes") - (set_attr "indexed" "yes") - (set_attr "cell_micro" "always")]) - -(define_insn "*stmsi7" - [(match_parallel 0 "store_multiple_operation" - [(set (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b")) - (match_operand:SI 2 "gpc_reg_operand" "r")) - (clobber (match_scratch:SI 3 "=X")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 4))) - (match_operand:SI 4 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 8))) - (match_operand:SI 5 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 12))) - (match_operand:SI 6 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 16))) - (match_operand:SI 7 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 20))) - (match_operand:SI 8 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 24))) - (match_operand:SI 9 "gpc_reg_operand" "r"))])] - "TARGET_STRING && XVECLEN (operands[0], 0) == 8" - "stswi %2,%1,%O0" - [(set_attr "type" "store") - (set_attr "update" "yes") - (set_attr "indexed" "yes") - (set_attr "cell_micro" "always")]) - -(define_insn "*stmsi6" - [(match_parallel 0 "store_multiple_operation" - [(set (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b")) - (match_operand:SI 2 "gpc_reg_operand" "r")) - (clobber (match_scratch:SI 3 "=X")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 4))) - (match_operand:SI 4 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 8))) - (match_operand:SI 5 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 12))) - (match_operand:SI 6 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 16))) - (match_operand:SI 7 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 20))) - (match_operand:SI 8 "gpc_reg_operand" "r"))])] - "TARGET_STRING && XVECLEN (operands[0], 0) == 7" - "stswi %2,%1,%O0" - [(set_attr "type" "store") - (set_attr "update" "yes") - (set_attr "indexed" "yes") - (set_attr "cell_micro" "always")]) - -(define_insn "*stmsi5" - [(match_parallel 0 "store_multiple_operation" - [(set (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b")) - (match_operand:SI 2 "gpc_reg_operand" "r")) - (clobber (match_scratch:SI 3 "=X")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 4))) - (match_operand:SI 4 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 8))) - (match_operand:SI 5 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 12))) - (match_operand:SI 6 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 16))) - (match_operand:SI 7 "gpc_reg_operand" "r"))])] - "TARGET_STRING && XVECLEN (operands[0], 0) == 6" - "stswi %2,%1,%O0" - [(set_attr "type" "store") - (set_attr "update" "yes") - (set_attr "indexed" "yes") - (set_attr "cell_micro" "always")]) - -(define_insn "*stmsi4" - [(match_parallel 0 "store_multiple_operation" - [(set (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b")) - (match_operand:SI 2 "gpc_reg_operand" "r")) - (clobber (match_scratch:SI 3 "=X")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 4))) - (match_operand:SI 4 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 8))) - (match_operand:SI 5 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 12))) - (match_operand:SI 6 "gpc_reg_operand" "r"))])] - "TARGET_STRING && XVECLEN (operands[0], 0) == 5" - "stswi %2,%1,%O0" - [(set_attr "type" "store") - (set_attr "update" "yes") - (set_attr "indexed" "yes") - (set_attr "cell_micro" "always")]) - -(define_insn "*stmsi3" - [(match_parallel 0 "store_multiple_operation" - [(set (mem:SI (match_operand:SI 1 "gpc_reg_operand" "b")) - (match_operand:SI 2 "gpc_reg_operand" "r")) - (clobber (match_scratch:SI 3 "=X")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 4))) - (match_operand:SI 4 "gpc_reg_operand" "r")) - (set (mem:SI (plus:SI (match_dup 1) (const_int 8))) - (match_operand:SI 5 "gpc_reg_operand" "r"))])] - "TARGET_STRING && XVECLEN (operands[0], 0) == 4" - "stswi %2,%1,%O0" - [(set_attr "type" "store") - (set_attr "update" "yes") - (set_attr "indexed" "yes") - (set_attr "cell_micro" "always")]) - (define_expand "setmemsi" [(parallel [(set (match_operand:BLK 0 "" "") (match_operand 2 "const_int_operand" "")) @@ -9282,186 +8925,6 @@ else FAIL; }") - -;; Move up to 32 bytes at a time. The fixed registers are needed because the -;; register allocator doesn't have a clue about allocating 8 word registers. -;; rD/rS = r5 is preferred, efficient form. -(define_expand "movmemsi_8reg" - [(parallel [(set (match_operand 0 "" "") - (match_operand 1 "" "")) - (use (match_operand 2 "" "")) - (use (match_operand 3 "" "")) - (clobber (reg:SI 5)) - (clobber (reg:SI 6)) - (clobber (reg:SI 7)) - (clobber (reg:SI 8)) - (clobber (reg:SI 9)) - (clobber (reg:SI 10)) - (clobber (reg:SI 11)) - (clobber (reg:SI 12)) - (clobber (match_scratch:SI 4 ""))])] - "TARGET_STRING" - "") - -(define_insn "" - [(set (mem:BLK (match_operand:P 0 "gpc_reg_operand" "b")) - (mem:BLK (match_operand:P 1 "gpc_reg_operand" "b"))) - (use (match_operand:SI 2 "immediate_operand" "i")) - (use (match_operand:SI 3 "immediate_operand" "i")) - (clobber (match_operand:SI 4 "gpc_reg_operand" "=&r")) - (clobber (reg:SI 6)) - (clobber (reg:SI 7)) - (clobber (reg:SI 8)) - (clobber (reg:SI 9)) - (clobber (reg:SI 10)) - (clobber (reg:SI 11)) - (clobber (reg:SI 12)) - (clobber (match_scratch:SI 5 "=X"))] - "TARGET_STRING - && ((INTVAL (operands[2]) > 24 && INTVAL (operands[2]) < 32) - || INTVAL (operands[2]) == 0) - && (REGNO (operands[0]) < 5 || REGNO (operands[0]) > 12) - && (REGNO (operands[1]) < 5 || REGNO (operands[1]) > 12) - && REGNO (operands[4]) == 5" - "lswi %4,%1,%2\;stswi %4,%0,%2" - [(set_attr "type" "store") - (set_attr "update" "yes") - (set_attr "indexed" "yes") - (set_attr "cell_micro" "always") - (set_attr "length" "8")]) - -;; Move up to 24 bytes at a time. The fixed registers are needed because the -;; register allocator doesn't have a clue about allocating 6 word registers. -;; rD/rS = r5 is preferred, efficient form. -(define_expand "movmemsi_6reg" - [(parallel [(set (match_operand 0 "" "") - (match_operand 1 "" "")) - (use (match_operand 2 "" "")) - (use (match_operand 3 "" "")) - (clobber (reg:SI 5)) - (clobber (reg:SI 6)) - (clobber (reg:SI 7)) - (clobber (reg:SI 8)) - (clobber (reg:SI 9)) - (clobber (reg:SI 10)) - (clobber (match_scratch:SI 4 ""))])] - "TARGET_STRING" - "") - -(define_insn "" - [(set (mem:BLK (match_operand:P 0 "gpc_reg_operand" "b")) - (mem:BLK (match_operand:P 1 "gpc_reg_operand" "b"))) - (use (match_operand:SI 2 "immediate_operand" "i")) - (use (match_operand:SI 3 "immediate_operand" "i")) - (clobber (match_operand:SI 4 "gpc_reg_operand" "=&r")) - (clobber (reg:SI 6)) - (clobber (reg:SI 7)) - (clobber (reg:SI 8)) - (clobber (reg:SI 9)) - (clobber (reg:SI 10)) - (clobber (match_scratch:SI 5 "=X"))] - "TARGET_STRING - && INTVAL (operands[2]) > 16 && INTVAL (operands[2]) <= 32 - && (REGNO (operands[0]) < 5 || REGNO (operands[0]) > 10) - && (REGNO (operands[1]) < 5 || REGNO (operands[1]) > 10) - && REGNO (operands[4]) == 5" - "lswi %4,%1,%2\;stswi %4,%0,%2" - [(set_attr "type" "store") - (set_attr "update" "yes") - (set_attr "indexed" "yes") - (set_attr "cell_micro" "always") - (set_attr "length" "8")]) - -;; Move up to 16 bytes at a time, using 4 fixed registers to avoid spill -;; problems with TImode. -;; rD/rS = r5 is preferred, efficient form. -(define_expand "movmemsi_4reg" - [(parallel [(set (match_operand 0 "" "") - (match_operand 1 "" "")) - (use (match_operand 2 "" "")) - (use (match_operand 3 "" "")) - (clobber (reg:SI 5)) - (clobber (reg:SI 6)) - (clobber (reg:SI 7)) - (clobber (reg:SI 8)) - (clobber (match_scratch:SI 4 ""))])] - "TARGET_STRING" - "") - -(define_insn "" - [(set (mem:BLK (match_operand:P 0 "gpc_reg_operand" "b")) - (mem:BLK (match_operand:P 1 "gpc_reg_operand" "b"))) - (use (match_operand:SI 2 "immediate_operand" "i")) - (use (match_operand:SI 3 "immediate_operand" "i")) - (clobber (match_operand:SI 4 "gpc_reg_operand" "=&r")) - (clobber (reg:SI 6)) - (clobber (reg:SI 7)) - (clobber (reg:SI 8)) - (clobber (match_scratch:SI 5 "=X"))] - "TARGET_STRING - && INTVAL (operands[2]) > 8 && INTVAL (operands[2]) <= 16 - && (REGNO (operands[0]) < 5 || REGNO (operands[0]) > 8) - && (REGNO (operands[1]) < 5 || REGNO (operands[1]) > 8) - && REGNO (operands[4]) == 5" - "lswi %4,%1,%2\;stswi %4,%0,%2" - [(set_attr "type" "store") - (set_attr "update" "yes") - (set_attr "indexed" "yes") - (set_attr "cell_micro" "always") - (set_attr "length" "8")]) - -;; Move up to 8 bytes at a time. -(define_expand "movmemsi_2reg" - [(parallel [(set (match_operand 0 "" "") - (match_operand 1 "" "")) - (use (match_operand 2 "" "")) - (use (match_operand 3 "" "")) - (clobber (match_scratch:DI 4 "")) - (clobber (match_scratch:SI 5 ""))])] - "TARGET_STRING && ! TARGET_POWERPC64" - "") - -(define_insn "" - [(set (mem:BLK (match_operand:SI 0 "gpc_reg_operand" "b")) - (mem:BLK (match_operand:SI 1 "gpc_reg_operand" "b"))) - (use (match_operand:SI 2 "immediate_operand" "i")) - (use (match_operand:SI 3 "immediate_operand" "i")) - (clobber (match_scratch:DI 4 "=&r")) - (clobber (match_scratch:SI 5 "=X"))] - "TARGET_STRING && ! TARGET_POWERPC64 - && INTVAL (operands[2]) > 4 && INTVAL (operands[2]) <= 8" - "lswi %4,%1,%2\;stswi %4,%0,%2" - [(set_attr "type" "store") - (set_attr "update" "yes") - (set_attr "indexed" "yes") - (set_attr "cell_micro" "always") - (set_attr "length" "8")]) - -;; Move up to 4 bytes at a time. -(define_expand "movmemsi_1reg" - [(parallel [(set (match_operand 0 "" "") - (match_operand 1 "" "")) - (use (match_operand 2 "" "")) - (use (match_operand 3 "" "")) - (clobber (match_scratch:SI 4 "")) - (clobber (match_scratch:SI 5 ""))])] - "TARGET_STRING" - "") - -(define_insn "" - [(set (mem:BLK (match_operand:P 0 "gpc_reg_operand" "b")) - (mem:BLK (match_operand:P 1 "gpc_reg_operand" "b"))) - (use (match_operand:SI 2 "immediate_operand" "i")) - (use (match_operand:SI 3 "immediate_operand" "i")) - (clobber (match_scratch:SI 4 "=&r")) - (clobber (match_scratch:SI 5 "=X"))] - "TARGET_STRING && INTVAL (operands[2]) > 0 && INTVAL (operands[2]) <= 4" - "lswi %4,%1,%2\;stswi %4,%0,%2" - [(set_attr "type" "store") - (set_attr "update" "yes") - (set_attr "indexed" "yes") - (set_attr "cell_micro" "always") - (set_attr "length" "8")]) ;; Define insns that do load or store with update. Some of these we can ;; get by using pre-decrement or pre-increment, but the hardware can also diff --git a/gcc/config/rs6000/rs6000.opt b/gcc/config/rs6000/rs6000.opt index ed6a9bdd0e5..54643802f8f 100644 --- a/gcc/config/rs6000/rs6000.opt +++ b/gcc/config/rs6000/rs6000.opt @@ -180,9 +180,12 @@ mmultiple Target Report Mask(MULTIPLE) Var(rs6000_isa_flags) Generate load/store multiple instructions. +;; This option existed in the past, but now is always off. +mno-string +Target RejectNegative Undocumented Ignore + mstring -Target Report Mask(STRING) Var(rs6000_isa_flags) -Generate string instructions for block moves. +Target RejectNegative Undocumented Warn(%<-mstring%> is deprecated) msoft-float Target Report RejectNegative Mask(SOFT_FLOAT) Var(rs6000_isa_flags) diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index a9449a86064..89a4727ecdf 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -1018,7 +1018,7 @@ See RS/6000 and PowerPC Options. -malign-power -malign-natural @gol -msoft-float -mhard-float -mmultiple -mno-multiple @gol -msingle-float -mdouble-float -msimple-fpu @gol --mstring -mno-string -mupdate -mno-update @gol +-mupdate -mno-update @gol -mavoid-indexed-addresses -mno-avoid-indexed-addresses @gol -mfused-madd -mno-fused-madd -mbit-align -mno-bit-align @gol -mstrict-align -mno-strict-align -mrelocatable @gol @@ -22292,7 +22292,7 @@ following options: @gccoptlist{-maltivec -mfprnd -mhard-float -mmfcrf -mmultiple @gol -mpopcntb -mpopcntd -mpowerpc64 @gol -mpowerpc-gpopt -mpowerpc-gfxopt -msingle-float -mdouble-float @gol --msimple-fpu -mstring -mmulhw -mdlmzb -mmfpgpr -mvsx @gol +-msimple-fpu -mmulhw -mdlmzb -mmfpgpr -mvsx @gol -mcrypto -mdirect-move -mhtm -mpower8-fusion -mpower8-vector @gol -mquad-memory -mquad-memory-atomic -mfloat128 -mfloat128-hardware} @@ -22689,19 +22689,6 @@ PowerPC systems, since those instructions do not work when the processor is in little-endian mode. The exceptions are PPC740 and PPC750 which permit these instructions in little-endian mode. -@item -mstring -@itemx -mno-string -@opindex mstring -@opindex mno-string -Generate code that uses (does not use) the load string instructions -and the store string word instructions to save multiple registers and -do small block moves. These instructions are generated by default on -POWER systems, and not generated on PowerPC systems. Do not use -@option{-mstring} on little-endian PowerPC systems, since those -instructions do not work when the processor is in little-endian mode. -The exceptions are PPC740 and PPC750 which permit these instructions -in little-endian mode. - @item -mupdate @itemx -mno-update @opindex mupdate