X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fgenemit.c;h=9df559b5705c370b538b774cc98c3461c0304d05;hb=2b4c4ba72e9d18ae01a20c9b95f70868b6d338e3;hp=2b7d414388aaf366cd31891dabbcd9a1c7298e37;hpb=c18bfb9c0edf5243b97bf89c0f2c9f7921c86e0b;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/genemit.c b/gcc/genemit.c index 2b7d414388a..9df559b5705 100644 --- a/gcc/genemit.c +++ b/gcc/genemit.c @@ -1,12 +1,12 @@ /* Generate code from machine description to emit insns as rtl. Copyright (C) 1987, 1988, 1991, 1994, 1995, 1997, 1998, 1999, 2000, 2001, - 2003 Free Software Foundation, Inc. + 2003, 2004, 2005, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free -Software Foundation; either version 2, or (at your option) any later +Software Foundation; either version 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY @@ -15,9 +15,8 @@ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License -along with GCC; see the file COPYING. If not, write to the Free -Software Foundation, 59 Temple Place - Suite 330, Boston, MA -02111-1307, USA. */ +along with GCC; see the file COPYING3. If not see +. */ #include "bconfig.h" @@ -178,7 +177,10 @@ gen_exp (rtx x, enum rtx_code subroutine_type, char *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 @@ -192,7 +194,10 @@ gen_exp (rtx x, enum rtx_code subroutine_type, char *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++) { @@ -217,6 +222,14 @@ gen_exp (rtx x, enum rtx_code subroutine_type, char *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"); @@ -229,6 +242,10 @@ gen_exp (rtx x, enum rtx_code subroutine_type, char *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 @@ -240,9 +257,10 @@ gen_exp (rtx x, enum rtx_code subroutine_type, char *used) return; case CONST_DOUBLE: + case CONST_FIXED: /* These shouldn't be written in MD files. Instead, the appropriate routines in varasm.c should be called. */ - abort (); + gcc_unreachable (); default: break; @@ -259,25 +277,36 @@ gen_exp (rtx x, enum rtx_code subroutine_type, char *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 (")"); } @@ -303,7 +332,7 @@ gen_insn (rtx insn, int 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; @@ -312,7 +341,7 @@ gen_insn (rtx insn, int lineno) if (i != XVECLEN (insn, 1) - 1) { struct clobber_pat *p; - struct clobber_ent *link = xmalloc (sizeof (struct clobber_ent)); + struct clobber_ent *link = XNEW (struct clobber_ent); int j; link->code_number = insn_code_number; @@ -328,17 +357,17 @@ gen_insn (rtx insn, int lineno) for (j = i + 1; j < XVECLEN (insn, 1); j++) { - rtx old = XEXP (XVECEXP (p->pattern, 1, j), 0); - rtx new = XEXP (XVECEXP (insn, 1, j), 0); + rtx old_rtx = XEXP (XVECEXP (p->pattern, 1, j), 0); + rtx new_rtx = XEXP (XVECEXP (insn, 1, j), 0); - /* OLD and NEW are the same if both are to be a SCRATCH + /* OLD and NEW_INSN are the same if both are to be a SCRATCH 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 - && REGNO (old) == REGNO (new))))) + if (! (GET_MODE (old_rtx) == GET_MODE (new_rtx) + && ((GET_CODE (old_rtx) == MATCH_SCRATCH + && GET_CODE (new_rtx) == MATCH_SCRATCH) + || (REG_P (old_rtx) && REG_P (new_rtx) + && REGNO (old_rtx) == REGNO (new_rtx))))) break; } @@ -348,7 +377,7 @@ gen_insn (rtx insn, int lineno) if (p == 0) { - p = xmalloc (sizeof (struct clobber_pat)); + p = XNEW (struct clobber_pat); p->insns = 0; p->pattern = insn; @@ -389,7 +418,7 @@ gen_insn (rtx insn, int lineno) printf (")\n"); 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) { @@ -399,15 +428,18 @@ gen_insn (rtx insn, int lineno) } else { + char *used = XCNEWVEC (char, operands); + printf (" return gen_rtx_PARALLEL (VOIDmode, gen_rtvec (%d", XVECLEN (insn, 1)); for (i = 0; i < XVECLEN (insn, 1); i++) { printf (",\n\t\t"); - gen_exp (XVECEXP (insn, 1, i), DEFINE_INSN, NULL); + gen_exp (XVECEXP (insn, 1, i), DEFINE_INSN, used); } printf ("));\n}\n\n"); + XDELETEVEC (used); } } @@ -418,6 +450,7 @@ gen_expand (rtx expand) { int operands; int i; + char *used; if (strlen (XSTR (expand, 0)) == 0) fatal ("define_expand lacks a name"); @@ -480,18 +513,20 @@ gen_expand (rtx 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' (unless we aren't going to use them at all). */ if (XVEC (expand, 1) != 0) { - for (i = 0; i < operands; i++) - printf (" operand%d = operands[%d];\n", i, i); - for (; i <= max_dup_opno; i++) - printf (" operand%d = operands[%d];\n", i, i); - for (; i <= max_scratch_opno; i++) - printf (" operand%d = operands[%d];\n", i, i); + for (i = 0; + i < MAX (operands, MAX (max_scratch_opno, max_dup_opno) + 1); + i++) + { + printf (" operand%d = operands[%d];\n", i, i); + printf (" (void) operand%d;\n", i); + } } printf (" }\n"); } @@ -500,6 +535,9 @@ gen_expand (rtx expand) Use emit_insn to add them to the sequence being accumulated. But don't do this if the user's code has set `no_more' nonzero. */ + used = XCNEWVEC (char, + MAX (operands, MAX (max_scratch_opno, max_dup_opno) + 1)); + for (i = 0; i < XVECLEN (expand, 1); i++) { rtx next = XVECEXP (expand, 1, i); @@ -518,7 +556,7 @@ gen_expand (rtx 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 @@ -530,13 +568,15 @@ gen_expand (rtx expand) printf (" emit ("); else printf (" emit_insn ("); - gen_exp (next, DEFINE_EXPAND, NULL); + gen_exp (next, DEFINE_EXPAND, used); printf (");\n"); if (GET_CODE (next) == SET && GET_CODE (SET_DEST (next)) == PC && GET_CODE (SET_SRC (next)) == LABEL_REF) printf (" emit_barrier ();"); } + XDELETEVEC (used); + /* Call `get_insns' to extract the list of all the insns emitted within this gen_... function. */ @@ -569,7 +609,7 @@ gen_split (rtx split) max_operand_vec (split, 2); operands = MAX (max_opno, MAX (max_dup_opno, max_scratch_opno)) + 1; unused = (operands == 0 ? " ATTRIBUTE_UNUSED" : ""); - used = xcalloc (1, operands); + used = XCNEWVEC (char, operands); /* Output the prototype, function name and argument declarations. */ if (GET_CODE (split) == DEFINE_PEEPHOLE2) @@ -581,8 +621,9 @@ gen_split (rtx split) } else { - printf ("extern rtx gen_split_%d (rtx *);\n", insn_code_number); - printf ("rtx\ngen_%s_%d (rtx *operands%s)\n", name, insn_code_number, 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"); @@ -600,11 +641,17 @@ gen_split (rtx 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++) - printf (" operand%d = operands[%d];\n", i, i); + { + printf (" operand%d = operands[%d];\n", i, i); + printf (" (void) operand%d;\n", i); + } /* Output code to construct the rtl for the instruction bodies. Use emit_insn to add them to the sequence being accumulated. @@ -627,7 +674,7 @@ gen_split (rtx 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 @@ -688,14 +735,15 @@ output_add_clobbers (void) } 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 (void) @@ -725,7 +773,7 @@ output_added_clobbers_hard_reg_p (void) } printf (" default:\n"); - printf (" abort ();\n"); + printf (" gcc_unreachable ();\n"); printf (" }\n"); printf ("}\n"); } @@ -738,9 +786,7 @@ output_peephole2_scratches (rtx split) { int i; int insn_nr = 0; - - printf (" HARD_REG_SET _regs_allocated;\n"); - printf (" CLEAR_HARD_REG_SET (_regs_allocated);\n"); + bool first = true; for (i = 0; i < XVECLEN (split, 0); i++) { @@ -759,6 +805,13 @@ output_peephole2_scratches (rtx split) else if (GET_CODE (XVECEXP (split, 0, j)) != MATCH_SCRATCH) cur_insn_nr++; + if (first) + { + printf (" HARD_REG_SET _regs_allocated;\n"); + printf (" CLEAR_HARD_REG_SET (_regs_allocated);\n"); + first = false; + } + printf (" if ((operands[%d] = peep2_find_free_register (%d, %d, \"%s\", %smode, &_regs_allocated)) == NULL_RTX)\n\ return NULL;\n", XINT (elt, 0), @@ -779,9 +832,6 @@ main (int argc, char **argv) progname = "genemit"; - if (argc <= 1) - fatal ("no input file name"); - if (init_md_reader_args (argc, argv) != SUCCESS_EXIT_CODE) return (FATAL_EXIT_CODE); @@ -803,7 +853,7 @@ from the machine description file `md'. */\n\n"); printf ("#include \"function.h\"\n"); printf ("#include \"expr.h\"\n"); printf ("#include \"optabs.h\"\n"); - printf ("#include \"real.h\"\n"); + printf ("#include \"dfp.h\"\n"); printf ("#include \"flags.h\"\n"); printf ("#include \"output.h\"\n"); printf ("#include \"insn-config.h\"\n"); @@ -812,7 +862,11 @@ from the machine description file `md'. */\n\n"); printf ("#include \"resource.h\"\n"); printf ("#include \"reload.h\"\n"); printf ("#include \"toplev.h\"\n"); - printf ("#include \"ggc.h\"\n\n"); + printf ("#include \"regs.h\"\n"); + printf ("#include \"tm-constrs.h\"\n"); + printf ("#include \"ggc.h\"\n"); + printf ("#include \"basic-block.h\"\n"); + printf ("#include \"integrate.h\"\n\n"); printf ("#define FAIL return (end_sequence (), _val)\n"); printf ("#define DONE return (_val = get_insns (), end_sequence (), _val)\n\n"); @@ -861,10 +915,3 @@ from the machine description file `md'. */\n\n"); fflush (stdout); return (ferror (stdout) != 0 ? FATAL_EXIT_CODE : SUCCESS_EXIT_CODE); } - -/* Define this so we can link with print-rtl.o to get debug_rtx function. */ -const char * -get_insn_name (int code ATTRIBUTE_UNUSED) -{ - return NULL; -}