X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fgenemit.c;h=bd9cf364a2165d2c84d20dad92f196b5a3fec9a0;hb=6a9bcd3e9b7a532cebce25af24999b7e3d8da123;hp=93425ad35699ecf9cecc0dea356367df6d834e8d;hpb=31d3e01ca0c35fc4c059db9cf503dd2413f77ea1;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/genemit.c b/gcc/genemit.c index 93425ad3569..bd9cf364a21 100644 --- a/gcc/genemit.c +++ b/gcc/genemit.c @@ -1,6 +1,6 @@ /* Generate code from machine description to emit insns as rtl. - Copyright (C) 1987, 1988, 1991, 1994, 1995, 1997, 1998, 1999, 2000, 2001 - Free Software Foundation, Inc. + Copyright (C) 1987, 1988, 1991, 1994, 1995, 1997, 1998, 1999, 2000, 2001, + 2003, 2004, 2005 Free Software Foundation, Inc. This file is part of GCC. @@ -20,8 +20,10 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -#include "hconfig.h" +#include "bconfig.h" #include "system.h" +#include "coretypes.h" +#include "tm.h" #include "rtl.h" #include "errors.h" #include "gensupport.h" @@ -30,12 +32,11 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA static int max_opno; static int max_dup_opno; static int max_scratch_opno; -static int register_constraints; static int insn_code_number; static int insn_index_number; /* Data structure for recording the patterns of insns that have CLOBBERs. - We use this to output a function that adds these CLOBBERs to a + We use this to output a function that adds these CLOBBERs to a previously-allocated PARALLEL expression. */ struct clobber_pat @@ -55,22 +56,21 @@ struct clobber_ent struct clobber_ent *next; }; -static void max_operand_1 PARAMS ((rtx)); -static int max_operand_vec PARAMS ((rtx, int)); -static void print_code PARAMS ((RTX_CODE)); -static void gen_exp PARAMS ((rtx, enum rtx_code, char *)); -static void gen_insn PARAMS ((rtx, int)); -static void gen_expand PARAMS ((rtx)); -static void gen_split PARAMS ((rtx)); -static void output_add_clobbers PARAMS ((void)); -static void output_added_clobbers_hard_reg_p PARAMS ((void)); -static void gen_rtx_scratch PARAMS ((rtx, enum rtx_code)); -static void output_peephole2_scratches PARAMS ((rtx)); +static void max_operand_1 (rtx); +static int max_operand_vec (rtx, int); +static void print_code (RTX_CODE); +static void gen_exp (rtx, enum rtx_code, char *); +static void gen_insn (rtx, int); +static void gen_expand (rtx); +static void gen_split (rtx); +static void output_add_clobbers (void); +static void output_added_clobbers_hard_reg_p (void); +static void gen_rtx_scratch (rtx, enum rtx_code); +static void output_peephole2_scratches (rtx); static void -max_operand_1 (x) - rtx x; +max_operand_1 (rtx x) { RTX_CODE code; int i; @@ -82,10 +82,6 @@ max_operand_1 (x) code = GET_CODE (x); - if (code == MATCH_OPERAND && XSTR (x, 2) != 0 && *XSTR (x, 2) != '\0') - register_constraints = 1; - if (code == MATCH_SCRATCH && XSTR (x, 1) != 0 && *XSTR (x, 1) != '\0') - register_constraints = 1; if (code == MATCH_OPERAND || code == MATCH_OPERATOR || code == MATCH_PARALLEL) max_opno = MAX (max_opno, XINT (x, 0)); @@ -110,9 +106,7 @@ max_operand_1 (x) } static int -max_operand_vec (insn, arg) - rtx insn; - int arg; +max_operand_vec (rtx insn, int arg) { int len = XVECLEN (insn, arg); int i; @@ -128,8 +122,7 @@ max_operand_vec (insn, arg) } static void -print_code (code) - RTX_CODE code; +print_code (RTX_CODE code) { const char *p1; for (p1 = GET_RTX_NAME (code); *p1; p1++) @@ -137,9 +130,7 @@ print_code (code) } static void -gen_rtx_scratch (x, subroutine_type) - rtx x; - enum rtx_code subroutine_type; +gen_rtx_scratch (rtx x, enum rtx_code subroutine_type) { if (subroutine_type == DEFINE_PEEPHOLE2) { @@ -155,10 +146,7 @@ gen_rtx_scratch (x, subroutine_type) substituting any operand references appearing within. */ static void -gen_exp (x, subroutine_type, used) - rtx x; - enum rtx_code subroutine_type; - char *used; +gen_exp (rtx x, enum rtx_code subroutine_type, char *used) { RTX_CODE code; int i; @@ -190,7 +178,10 @@ gen_exp (x, subroutine_type, used) return; case MATCH_OP_DUP: - printf ("gen_rtx (GET_CODE (operand%d), ", XINT (x, 0)); + printf ("gen_rtx_fmt_"); + for (i = 0; i < XVECLEN (x, 1); i++) + printf ("e"); + printf (" (GET_CODE (operand%d), ", XINT (x, 0)); if (GET_MODE (x) == VOIDmode) printf ("GET_MODE (operand%d)", XINT (x, 0)); else @@ -204,7 +195,10 @@ gen_exp (x, subroutine_type, used) return; case MATCH_OPERATOR: - printf ("gen_rtx (GET_CODE (operand%d)", XINT (x, 0)); + printf ("gen_rtx_fmt_"); + for (i = 0; i < XVECLEN (x, 2); i++) + printf ("e"); + printf (" (GET_CODE (operand%d)", XINT (x, 0)); printf (", %smode", GET_MODE_NAME (GET_MODE (x))); for (i = 0; i < XVECLEN (x, 2); i++) { @@ -229,6 +223,14 @@ gen_exp (x, subroutine_type, used) case PC: printf ("pc_rtx"); return; + case CLOBBER: + if (REG_P (XEXP (x, 0))) + { + printf ("gen_hard_reg_clobber (%smode, %i)", GET_MODE_NAME (GET_MODE (XEXP (x, 0))), + REGNO (XEXP (x, 0))); + return; + } + break; case CC0: printf ("cc0_rtx"); @@ -241,12 +243,16 @@ gen_exp (x, subroutine_type, used) printf ("const1_rtx"); else if (INTVAL (x) == -1) printf ("constm1_rtx"); + else if (-MAX_SAVED_CONST_INT <= INTVAL (x) + && INTVAL (x) <= MAX_SAVED_CONST_INT) + printf ("const_int_rtx[MAX_SAVED_CONST_INT + (%d)]", + (int) INTVAL (x)); else if (INTVAL (x) == STORE_FLAG_VALUE) printf ("const_true_rtx"); else { printf ("GEN_INT ("); - printf (HOST_WIDE_INT_PRINT_DEC, INTVAL (x)); + printf (HOST_WIDE_INT_PRINT_DEC_C, INTVAL (x)); printf (")"); } return; @@ -254,7 +260,7 @@ gen_exp (x, subroutine_type, used) case CONST_DOUBLE: /* These shouldn't be written in MD files. Instead, the appropriate routines in varasm.c should be called. */ - abort (); + gcc_unreachable (); default: break; @@ -271,35 +277,44 @@ gen_exp (x, subroutine_type, used) if (fmt[i] == '0') break; printf (",\n\t"); - if (fmt[i] == 'e' || fmt[i] == 'u') - gen_exp (XEXP (x, i), subroutine_type, used); - else if (fmt[i] == 'i') - printf ("%u", XINT (x, i)); - else if (fmt[i] == 's') - printf ("\"%s\"", XSTR (x, i)); - else if (fmt[i] == 'E') + switch (fmt[i]) { - int j; - printf ("gen_rtvec (%d", XVECLEN (x, i)); - for (j = 0; j < XVECLEN (x, i); j++) - { - printf (",\n\t\t"); - gen_exp (XVECEXP (x, i, j), subroutine_type, used); - } - printf (")"); + case 'e': case 'u': + gen_exp (XEXP (x, i), subroutine_type, used); + break; + + case 'i': + printf ("%u", XINT (x, i)); + break; + + case 's': + printf ("\"%s\"", XSTR (x, i)); + break; + + case 'E': + { + int j; + printf ("gen_rtvec (%d", XVECLEN (x, i)); + for (j = 0; j < XVECLEN (x, i); j++) + { + printf (",\n\t\t"); + gen_exp (XVECEXP (x, i, j), subroutine_type, used); + } + printf (")"); + break; + } + + default: + gcc_unreachable (); } - else - abort (); } printf (")"); -} +} /* Generate the `gen_...' function for a DEFINE_INSN. */ static void -gen_insn (insn, lineno) - rtx insn; - int lineno; +gen_insn (rtx insn, int lineno) { int operands; int i; @@ -317,7 +332,7 @@ gen_insn (insn, lineno) if (GET_CODE (XVECEXP (insn, 1, i)) != CLOBBER) break; - if (GET_CODE (XEXP (XVECEXP (insn, 1, i), 0)) == REG) + if (REG_P (XEXP (XVECEXP (insn, 1, i), 0))) has_hard_reg = 1; else if (GET_CODE (XEXP (XVECEXP (insn, 1, i), 0)) != MATCH_SCRATCH) break; @@ -326,8 +341,7 @@ gen_insn (insn, lineno) if (i != XVECLEN (insn, 1) - 1) { struct clobber_pat *p; - struct clobber_ent *link - = (struct clobber_ent *) xmalloc (sizeof (struct clobber_ent)); + struct clobber_ent *link = xmalloc (sizeof (struct clobber_ent)); int j; link->code_number = insn_code_number; @@ -347,24 +361,24 @@ gen_insn (insn, lineno) rtx new = XEXP (XVECEXP (insn, 1, j), 0); /* OLD and NEW are the same if both are to be a SCRATCH - of the same mode, + of the same mode, or if both are registers of the same mode and number. */ if (! (GET_MODE (old) == GET_MODE (new) && ((GET_CODE (old) == MATCH_SCRATCH && GET_CODE (new) == MATCH_SCRATCH) - || (GET_CODE (old) == REG && GET_CODE (new) == REG + || (REG_P (old) && REG_P (new) && REGNO (old) == REGNO (new))))) break; } - + if (j == XVECLEN (insn, 1)) break; } if (p == 0) { - p = (struct clobber_pat *) xmalloc (sizeof (struct clobber_pat)); - + p = xmalloc (sizeof (struct clobber_pat)); + p->insns = 0; p->pattern = insn; p->first_clobber = i + 1; @@ -386,26 +400,25 @@ gen_insn (insn, lineno) printf ("/* %s:%d */\n", read_rtx_filename, lineno); - /* Find out how many operands this function has, - and also whether any of them have register constraints. */ - register_constraints = 0; + /* Find out how many operands this function has. */ operands = max_operand_vec (insn, 1); if (max_dup_opno >= operands) fatal ("match_dup operand number has no match_operand"); /* Output the function name and argument declarations. */ printf ("rtx\ngen_%s (", XSTR (insn, 0)); - for (i = 0; i < operands; i++) - if (i) - printf (", operand%d", i); - else - printf ("operand%d", i); + if (operands) + for (i = 0; i < operands; i++) + if (i) + printf (",\n\trtx operand%d ATTRIBUTE_UNUSED", i); + else + printf ("rtx operand%d ATTRIBUTE_UNUSED", i); + else + printf ("void"); printf (")\n"); - for (i = 0; i < operands; i++) - printf (" rtx operand%d;\n", i); printf ("{\n"); - /* Output code to construct and return the rtl for the instruction body */ + /* Output code to construct and return the rtl for the instruction body. */ if (XVECLEN (insn, 1) == 1) { @@ -430,8 +443,7 @@ gen_insn (insn, lineno) /* Generate the `gen_...' function for a DEFINE_EXPAND. */ static void -gen_expand (expand) - rtx expand; +gen_expand (rtx expand) { int operands; int i; @@ -441,22 +453,20 @@ gen_expand (expand) if (XVEC (expand, 1) == 0) fatal ("define_expand for %s lacks a pattern", XSTR (expand, 0)); - /* Find out how many operands this function has, - and also whether any of them have register constraints. */ - register_constraints = 0; - + /* Find out how many operands this function has. */ operands = max_operand_vec (expand, 1); /* Output the function name and argument declarations. */ printf ("rtx\ngen_%s (", XSTR (expand, 0)); - for (i = 0; i < operands; i++) - if (i) - printf (", operand%d", i); - else - printf ("operand%d", i); + if (operands) + for (i = 0; i < operands; i++) + if (i) + printf (",\n\trtx operand%d", i); + else + printf ("rtx operand%d", i); + else + printf ("void"); printf (")\n"); - for (i = 0; i < operands; i++) - printf (" rtx operand%d;\n", i); printf ("{\n"); /* If we don't have any C code to write, only one insn is being written, @@ -499,6 +509,7 @@ gen_expand (expand) /* Output the special code to be executed before the sequence is generated. */ + print_rtx_ptr_loc (XSTR (expand, 3)); printf ("%s\n", XSTR (expand, 3)); /* Output code to copy the arguments back out of `operands' @@ -524,8 +535,9 @@ gen_expand (expand) rtx next = XVECEXP (expand, 1, i); if ((GET_CODE (next) == SET && GET_CODE (SET_DEST (next)) == PC) || (GET_CODE (next) == PARALLEL - && GET_CODE (XVECEXP (next, 0, 0)) == SET - && GET_CODE (SET_DEST (XVECEXP (next, 0, 0))) == PC) + && ((GET_CODE (XVECEXP (next, 0, 0)) == SET + && GET_CODE (SET_DEST (XVECEXP (next, 0, 0))) == PC) + || GET_CODE (XVECEXP (next, 0, 0)) == RETURN)) || GET_CODE (next) == RETURN) printf (" emit_jump_insn ("); else if ((GET_CODE (next) == SET && GET_CODE (SET_SRC (next)) == CALL) @@ -536,7 +548,7 @@ gen_expand (expand) || (GET_CODE (next) == PARALLEL && GET_CODE (XVECEXP (next, 0, 0)) == CALL)) printf (" emit_call_insn ("); - else if (GET_CODE (next) == CODE_LABEL) + else if (LABEL_P (next)) printf (" emit_label ("); else if (GET_CODE (next) == MATCH_OPERAND || GET_CODE (next) == MATCH_DUP @@ -566,8 +578,7 @@ gen_expand (expand) /* Like gen_expand, but generates insns resulting from splitting SPLIT. */ static void -gen_split (split) - rtx split; +gen_split (rtx split) { int i; int operands; @@ -593,18 +604,16 @@ gen_split (split) /* Output the prototype, function name and argument declarations. */ if (GET_CODE (split) == DEFINE_PEEPHOLE2) { - printf ("extern rtx gen_%s_%d PARAMS ((rtx, rtx *));\n", + printf ("extern rtx gen_%s_%d (rtx, rtx *);\n", name, insn_code_number); - printf ("rtx\ngen_%s_%d (curr_insn, operands)\n", - name, insn_code_number); - printf (" rtx curr_insn ATTRIBUTE_UNUSED;\n"); - printf (" rtx *operands%s;\n", unused); + printf ("rtx\ngen_%s_%d (rtx curr_insn ATTRIBUTE_UNUSED, rtx *operands%s)\n", + name, insn_code_number, unused); } else { - printf ("extern rtx gen_split_%d PARAMS ((rtx *));\n", insn_code_number); - printf ("rtx\ngen_%s_%d (operands)\n", name, insn_code_number); - printf (" rtx *operands%s;\n", unused); + printf ("extern rtx gen_split_%d (rtx, rtx *);\n", insn_code_number); + printf ("rtx\ngen_split_%d (rtx curr_insn ATTRIBUTE_UNUSED, rtx *operands%s)\n", + insn_code_number, unused); } printf ("{\n"); @@ -622,7 +631,10 @@ gen_split (split) before the actual construction. */ if (XSTR (split, 3)) - printf ("%s\n", XSTR (split, 3)); + { + print_rtx_ptr_loc (XSTR (split, 3)); + printf ("%s\n", XSTR (split, 3)); + } /* Output code to copy the arguments back out of `operands' */ for (i = 0; i < operands; i++) @@ -649,7 +661,7 @@ gen_split (split) || (GET_CODE (next) == PARALLEL && GET_CODE (XVECEXP (next, 0, 0)) == CALL)) printf (" emit_call_insn ("); - else if (GET_CODE (next) == CODE_LABEL) + else if (LABEL_P (next)) printf (" emit_label ("); else if (GET_CODE (next) == MATCH_OPERAND || GET_CODE (next) == MATCH_OPERATOR @@ -682,14 +694,13 @@ gen_split (split) the end of the vector. */ static void -output_add_clobbers () +output_add_clobbers (void) { struct clobber_pat *clobber; struct clobber_ent *ent; int i; - printf ("\n\nvoid\nadd_clobbers (pattern, insn_code_number)\n"); - printf (" rtx pattern ATTRIBUTE_UNUSED;\n int insn_code_number;\n"); + printf ("\n\nvoid\nadd_clobbers (rtx pattern ATTRIBUTE_UNUSED, int insn_code_number)\n"); printf ("{\n"); printf (" switch (insn_code_number)\n"); printf (" {\n"); @@ -711,24 +722,24 @@ output_add_clobbers () } printf (" default:\n"); - printf (" abort ();\n"); + printf (" gcc_unreachable ();\n"); printf (" }\n"); printf ("}\n"); } -/* Write a function, `added_clobbers_hard_reg_p' this is given an insn_code - number that needs clobbers and returns 1 if they include a clobber of a - hard reg and 0 if they just clobber SCRATCH. */ +/* Write a function, `added_clobbers_hard_reg_p' that is given an insn_code + number that will have clobbers added (as indicated by `recog') and returns + 1 if those include a clobber of a hard reg or 0 if all of them just clobber + SCRATCH. */ static void -output_added_clobbers_hard_reg_p () +output_added_clobbers_hard_reg_p (void) { struct clobber_pat *clobber; struct clobber_ent *ent; int clobber_p, used; - printf ("\n\nint\nadded_clobbers_hard_reg_p (insn_code_number)\n"); - printf (" int insn_code_number;\n"); + printf ("\n\nint\nadded_clobbers_hard_reg_p (int insn_code_number)\n"); printf ("{\n"); printf (" switch (insn_code_number)\n"); printf (" {\n"); @@ -749,7 +760,7 @@ output_added_clobbers_hard_reg_p () } printf (" default:\n"); - printf (" abort ();\n"); + printf (" gcc_unreachable ();\n"); printf (" }\n"); printf ("}\n"); } @@ -758,8 +769,7 @@ output_added_clobbers_hard_reg_p () scratch registers used by the peephole2 pattern in SPLIT. */ static void -output_peephole2_scratches (split) - rtx split; +output_peephole2_scratches (rtx split) { int i; int insn_nr = 0; @@ -785,7 +795,7 @@ output_peephole2_scratches (split) cur_insn_nr++; printf (" if ((operands[%d] = peep2_find_free_register (%d, %d, \"%s\", %smode, &_regs_allocated)) == NULL_RTX)\n\ - return NULL;\n", + return NULL;\n", XINT (elt, 0), insn_nr, last_insn_nr, XSTR (elt, 1), @@ -797,20 +807,13 @@ output_peephole2_scratches (split) } } -extern int main PARAMS ((int, char **)); - int -main (argc, argv) - int argc; - char **argv; +main (int argc, char **argv) { rtx desc; progname = "genemit"; - if (argc <= 1) - fatal ("no input file name"); - if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE) return (FATAL_EXIT_CODE); @@ -825,6 +828,8 @@ from the machine description file `md'. */\n\n"); printf ("#include \"config.h\"\n"); printf ("#include \"system.h\"\n"); + printf ("#include \"coretypes.h\"\n"); + printf ("#include \"tm.h\"\n"); printf ("#include \"rtl.h\"\n"); printf ("#include \"tm_p.h\"\n"); printf ("#include \"function.h\"\n"); @@ -891,8 +896,7 @@ from the machine description file `md'. */\n\n"); /* Define this so we can link with print-rtl.o to get debug_rtx function. */ const char * -get_insn_name (code) - int code ATTRIBUTE_UNUSED; +get_insn_name (int code ATTRIBUTE_UNUSED) { return NULL; }