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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [print-rtl.c] - Rev 758
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/* Print RTL for GCC. Copyright (C) 1987, 1988, 1992, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011 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 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 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 COPYING3. If not see <http://www.gnu.org/licenses/>. */ /* This file is compiled twice: once for the generator programs, once for the compiler. */ #ifdef GENERATOR_FILE #include "bconfig.h" #else #include "config.h" #endif #include "system.h" #include "coretypes.h" #include "tm.h" #include "rtl.h" /* These headers all define things which are not available in generator programs. */ #ifndef GENERATOR_FILE #include "tree.h" #include "flags.h" #include "hard-reg-set.h" #include "basic-block.h" #include "diagnostic.h" #include "tree-pretty-print.h" #include "cselib.h" #include "tree-pass.h" #include "dwarf2out.h" #endif static FILE *outfile; static int sawclose = 0; static int indent; static void print_rtx (const_rtx); /* String printed at beginning of each RTL when it is dumped. This string is set to ASM_COMMENT_START when the RTL is dumped in the assembly output file. */ const char *print_rtx_head = ""; #ifdef GENERATOR_FILE /* These are defined from the .opt file when not used in generator programs. */ /* Nonzero means suppress output of instruction numbers in debugging dumps. This must be defined here so that programs like gencodes can be linked. */ int flag_dump_unnumbered = 0; /* Nonzero means suppress output of instruction numbers for previous and next insns in debugging dumps. This must be defined here so that programs like gencodes can be linked. */ int flag_dump_unnumbered_links = 0; #endif /* Nonzero means use simplified format without flags, modes, etc. */ int flag_simple = 0; /* Nonzero if we are dumping graphical description. */ int dump_for_graph; #ifndef GENERATOR_FILE void print_mem_expr (FILE *outfile, const_tree expr) { fputc (' ', outfile); print_generic_expr (outfile, CONST_CAST_TREE (expr), dump_flags); } #endif /* Print IN_RTX onto OUTFILE. This is the recursive part of printing. */ static void print_rtx (const_rtx in_rtx) { int i = 0; int j; const char *format_ptr; int is_insn; if (sawclose) { if (flag_simple) fputc (' ', outfile); else fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, ""); sawclose = 0; } if (in_rtx == 0) { fputs ("(nil)", outfile); sawclose = 1; return; } else if (GET_CODE (in_rtx) > NUM_RTX_CODE) { fprintf (outfile, "(??? bad code %d\n%s%*s)", GET_CODE (in_rtx), print_rtx_head, indent * 2, ""); sawclose = 1; return; } is_insn = INSN_P (in_rtx); /* When printing in VCG format we write INSNs, NOTE, LABEL, and BARRIER in separate nodes and therefore have to handle them special here. */ if (dump_for_graph && (is_insn || NOTE_P (in_rtx) || LABEL_P (in_rtx) || BARRIER_P (in_rtx))) { i = 3; indent = 0; } else { /* Print name of expression code. */ if (flag_simple && CONST_INT_P (in_rtx)) fputc ('(', outfile); else fprintf (outfile, "(%s", GET_RTX_NAME (GET_CODE (in_rtx))); if (! flag_simple) { if (RTX_FLAG (in_rtx, in_struct)) fputs ("/s", outfile); if (RTX_FLAG (in_rtx, volatil)) fputs ("/v", outfile); if (RTX_FLAG (in_rtx, unchanging)) fputs ("/u", outfile); if (RTX_FLAG (in_rtx, frame_related)) fputs ("/f", outfile); if (RTX_FLAG (in_rtx, jump)) fputs ("/j", outfile); if (RTX_FLAG (in_rtx, call)) fputs ("/c", outfile); if (RTX_FLAG (in_rtx, return_val)) fputs ("/i", outfile); /* Print REG_NOTE names for EXPR_LIST and INSN_LIST. */ if ((GET_CODE (in_rtx) == EXPR_LIST || GET_CODE (in_rtx) == INSN_LIST) && (int)GET_MODE (in_rtx) < REG_NOTE_MAX) fprintf (outfile, ":%s", GET_REG_NOTE_NAME (GET_MODE (in_rtx))); /* For other rtl, print the mode if it's not VOID. */ else if (GET_MODE (in_rtx) != VOIDmode) fprintf (outfile, ":%s", GET_MODE_NAME (GET_MODE (in_rtx))); #ifndef GENERATOR_FILE if (GET_CODE (in_rtx) == VAR_LOCATION) { if (TREE_CODE (PAT_VAR_LOCATION_DECL (in_rtx)) == STRING_CST) fputs (" <debug string placeholder>", outfile); else print_mem_expr (outfile, PAT_VAR_LOCATION_DECL (in_rtx)); fputc (' ', outfile); print_rtx (PAT_VAR_LOCATION_LOC (in_rtx)); if (PAT_VAR_LOCATION_STATUS (in_rtx) == VAR_INIT_STATUS_UNINITIALIZED) fprintf (outfile, " [uninit]"); sawclose = 1; i = GET_RTX_LENGTH (VAR_LOCATION); } #endif } } #ifndef GENERATOR_FILE if (GET_CODE (in_rtx) == CONST_DOUBLE && FLOAT_MODE_P (GET_MODE (in_rtx))) i = 5; #endif /* Get the format string and skip the first elements if we have handled them already. */ format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx)) + i; for (; i < GET_RTX_LENGTH (GET_CODE (in_rtx)); i++) switch (*format_ptr++) { const char *str; case 'T': str = XTMPL (in_rtx, i); goto string; case 'S': case 's': str = XSTR (in_rtx, i); string: if (str == 0) fputs (dump_for_graph ? " \\\"\\\"" : " \"\"", outfile); else { if (dump_for_graph) fprintf (outfile, " (\\\"%s\\\")", str); else fprintf (outfile, " (\"%s\")", str); } sawclose = 1; break; /* 0 indicates a field for internal use that should not be printed. An exception is the third field of a NOTE, where it indicates that the field has several different valid contents. */ case '0': if (i == 1 && REG_P (in_rtx)) { if (REGNO (in_rtx) != ORIGINAL_REGNO (in_rtx)) fprintf (outfile, " [%d]", ORIGINAL_REGNO (in_rtx)); } #ifndef GENERATOR_FILE else if (i == 1 && GET_CODE (in_rtx) == SYMBOL_REF) { int flags = SYMBOL_REF_FLAGS (in_rtx); if (flags) fprintf (outfile, " [flags %#x]", flags); } else if (i == 2 && GET_CODE (in_rtx) == SYMBOL_REF) { tree decl = SYMBOL_REF_DECL (in_rtx); if (decl) print_node_brief (outfile, "", decl, dump_flags); } #endif else if (i == 4 && NOTE_P (in_rtx)) { switch (NOTE_KIND (in_rtx)) { case NOTE_INSN_EH_REGION_BEG: case NOTE_INSN_EH_REGION_END: if (flag_dump_unnumbered) fprintf (outfile, " #"); else fprintf (outfile, " %d", NOTE_EH_HANDLER (in_rtx)); sawclose = 1; break; case NOTE_INSN_BLOCK_BEG: case NOTE_INSN_BLOCK_END: #ifndef GENERATOR_FILE dump_addr (outfile, " ", NOTE_BLOCK (in_rtx)); #endif sawclose = 1; break; case NOTE_INSN_BASIC_BLOCK: { #ifndef GENERATOR_FILE basic_block bb = NOTE_BASIC_BLOCK (in_rtx); if (bb != 0) fprintf (outfile, " [bb %d]", bb->index); #endif break; } case NOTE_INSN_DELETED_LABEL: case NOTE_INSN_DELETED_DEBUG_LABEL: { const char *label = NOTE_DELETED_LABEL_NAME (in_rtx); if (label) fprintf (outfile, " (\"%s\")", label); else fprintf (outfile, " \"\""); } break; case NOTE_INSN_SWITCH_TEXT_SECTIONS: { #ifndef GENERATOR_FILE basic_block bb = NOTE_BASIC_BLOCK (in_rtx); if (bb != 0) fprintf (outfile, " [bb %d]", bb->index); #endif break; } case NOTE_INSN_VAR_LOCATION: case NOTE_INSN_CALL_ARG_LOCATION: #ifndef GENERATOR_FILE fputc (' ', outfile); print_rtx (NOTE_VAR_LOCATION (in_rtx)); #endif break; case NOTE_INSN_CFI: #ifndef GENERATOR_FILE fputc ('\n', outfile); output_cfi_directive (outfile, NOTE_CFI (in_rtx)); fputc ('\t', outfile); #endif break; default: break; } } else if (i == 8 && JUMP_P (in_rtx) && JUMP_LABEL (in_rtx) != NULL) { /* Output the JUMP_LABEL reference. */ fprintf (outfile, "\n%s%*s -> ", print_rtx_head, indent * 2, ""); if (GET_CODE (JUMP_LABEL (in_rtx)) == RETURN) fprintf (outfile, "return"); else if (GET_CODE (JUMP_LABEL (in_rtx)) == SIMPLE_RETURN) fprintf (outfile, "simple_return"); else fprintf (outfile, "%d", INSN_UID (JUMP_LABEL (in_rtx))); } else if (i == 0 && GET_CODE (in_rtx) == VALUE) { #ifndef GENERATOR_FILE cselib_val *val = CSELIB_VAL_PTR (in_rtx); fprintf (outfile, " %u:%u", val->uid, val->hash); dump_addr (outfile, " @", in_rtx); dump_addr (outfile, "/", (void*)val); #endif } else if (i == 0 && GET_CODE (in_rtx) == DEBUG_EXPR) { #ifndef GENERATOR_FILE fprintf (outfile, " D#%i", DEBUG_TEMP_UID (DEBUG_EXPR_TREE_DECL (in_rtx))); #endif } else if (i == 0 && GET_CODE (in_rtx) == ENTRY_VALUE) { indent += 2; if (!sawclose) fprintf (outfile, " "); print_rtx (ENTRY_VALUE_EXP (in_rtx)); indent -= 2; } break; case 'e': do_e: indent += 2; if (i == 7 && INSN_P (in_rtx)) /* Put REG_NOTES on their own line. */ fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, ""); if (!sawclose) fprintf (outfile, " "); print_rtx (XEXP (in_rtx, i)); indent -= 2; break; case 'E': case 'V': indent += 2; if (sawclose) { fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, ""); sawclose = 0; } fputs (" [", outfile); if (NULL != XVEC (in_rtx, i)) { indent += 2; if (XVECLEN (in_rtx, i)) sawclose = 1; for (j = 0; j < XVECLEN (in_rtx, i); j++) print_rtx (XVECEXP (in_rtx, i, j)); indent -= 2; } if (sawclose) fprintf (outfile, "\n%s%*s", print_rtx_head, indent * 2, ""); fputs ("]", outfile); sawclose = 1; indent -= 2; break; case 'w': if (! flag_simple) fprintf (outfile, " "); fprintf (outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, i)); if (! flag_simple) fprintf (outfile, " [" HOST_WIDE_INT_PRINT_HEX "]", (unsigned HOST_WIDE_INT) XWINT (in_rtx, i)); break; case 'i': if (i == 5 && INSN_P (in_rtx)) { #ifndef GENERATOR_FILE /* Pretty-print insn locators. Ignore scoping as it is mostly redundant with line number information and do not print anything when there is no location information available. */ if (INSN_LOCATOR (in_rtx) && insn_file (in_rtx)) fprintf(outfile, " %s:%i", insn_file (in_rtx), insn_line (in_rtx)); #endif } else if (i == 6 && GET_CODE (in_rtx) == ASM_OPERANDS) { #ifndef GENERATOR_FILE fprintf (outfile, " %s:%i", locator_file (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)), locator_line (ASM_OPERANDS_SOURCE_LOCATION (in_rtx))); #endif } else if (i == 1 && GET_CODE (in_rtx) == ASM_INPUT) { #ifndef GENERATOR_FILE fprintf (outfile, " %s:%i", locator_file (ASM_INPUT_SOURCE_LOCATION (in_rtx)), locator_line (ASM_INPUT_SOURCE_LOCATION (in_rtx))); #endif } else if (i == 6 && NOTE_P (in_rtx)) { /* This field is only used for NOTE_INSN_DELETED_LABEL, and other times often contains garbage from INSN->NOTE death. */ if (NOTE_KIND (in_rtx) == NOTE_INSN_DELETED_LABEL || NOTE_KIND (in_rtx) == NOTE_INSN_DELETED_DEBUG_LABEL) fprintf (outfile, " %d", XINT (in_rtx, i)); } #if !defined(GENERATOR_FILE) && NUM_UNSPECV_VALUES > 0 else if (i == 1 && GET_CODE (in_rtx) == UNSPEC_VOLATILE && XINT (in_rtx, 1) >= 0 && XINT (in_rtx, 1) < NUM_UNSPECV_VALUES) fprintf (outfile, " %s", unspecv_strings[XINT (in_rtx, 1)]); #endif #if !defined(GENERATOR_FILE) && NUM_UNSPEC_VALUES > 0 else if (i == 1 && (GET_CODE (in_rtx) == UNSPEC || GET_CODE (in_rtx) == UNSPEC_VOLATILE) && XINT (in_rtx, 1) >= 0 && XINT (in_rtx, 1) < NUM_UNSPEC_VALUES) fprintf (outfile, " %s", unspec_strings[XINT (in_rtx, 1)]); #endif else { int value = XINT (in_rtx, i); const char *name; #ifndef GENERATOR_FILE if (REG_P (in_rtx) && (unsigned) value < FIRST_PSEUDO_REGISTER) fprintf (outfile, " %d %s", value, reg_names[value]); else if (REG_P (in_rtx) && (unsigned) value <= LAST_VIRTUAL_REGISTER) { if (value == VIRTUAL_INCOMING_ARGS_REGNUM) fprintf (outfile, " %d virtual-incoming-args", value); else if (value == VIRTUAL_STACK_VARS_REGNUM) fprintf (outfile, " %d virtual-stack-vars", value); else if (value == VIRTUAL_STACK_DYNAMIC_REGNUM) fprintf (outfile, " %d virtual-stack-dynamic", value); else if (value == VIRTUAL_OUTGOING_ARGS_REGNUM) fprintf (outfile, " %d virtual-outgoing-args", value); else if (value == VIRTUAL_CFA_REGNUM) fprintf (outfile, " %d virtual-cfa", value); else if (value == VIRTUAL_PREFERRED_STACK_BOUNDARY_REGNUM) fprintf (outfile, " %d virtual-preferred-stack-boundary", value); else fprintf (outfile, " %d virtual-reg-%d", value, value-FIRST_VIRTUAL_REGISTER); } else #endif if (flag_dump_unnumbered && (is_insn || NOTE_P (in_rtx))) fputc ('#', outfile); else fprintf (outfile, " %d", value); #ifndef GENERATOR_FILE if (REG_P (in_rtx) && REG_ATTRS (in_rtx)) { fputs (" [", outfile); if (ORIGINAL_REGNO (in_rtx) != REGNO (in_rtx)) fprintf (outfile, "orig:%i", ORIGINAL_REGNO (in_rtx)); if (REG_EXPR (in_rtx)) print_mem_expr (outfile, REG_EXPR (in_rtx)); if (REG_OFFSET (in_rtx)) fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC, REG_OFFSET (in_rtx)); fputs (" ]", outfile); } #endif if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, i) && XINT (in_rtx, i) >= 0 && (name = get_insn_name (XINT (in_rtx, i))) != NULL) fprintf (outfile, " {%s}", name); sawclose = 0; } break; /* Print NOTE_INSN names rather than integer codes. */ case 'n': fprintf (outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, i))); sawclose = 0; break; case 'u': if (XEXP (in_rtx, i) != NULL) { rtx sub = XEXP (in_rtx, i); enum rtx_code subc = GET_CODE (sub); if (GET_CODE (in_rtx) == LABEL_REF) { if (subc == NOTE && NOTE_KIND (sub) == NOTE_INSN_DELETED_LABEL) { if (flag_dump_unnumbered) fprintf (outfile, " [# deleted]"); else fprintf (outfile, " [%d deleted]", INSN_UID (sub)); sawclose = 0; break; } if (subc != CODE_LABEL) goto do_e; } if (flag_dump_unnumbered || (flag_dump_unnumbered_links && (i == 1 || i == 2) && (INSN_P (in_rtx) || NOTE_P (in_rtx) || LABEL_P (in_rtx) || BARRIER_P (in_rtx)))) fputs (" #", outfile); else fprintf (outfile, " %d", INSN_UID (sub)); } else fputs (" 0", outfile); sawclose = 0; break; case 't': #ifndef GENERATOR_FILE if (i == 0 && GET_CODE (in_rtx) == DEBUG_IMPLICIT_PTR) print_mem_expr (outfile, DEBUG_IMPLICIT_PTR_DECL (in_rtx)); else if (i == 0 && GET_CODE (in_rtx) == DEBUG_PARAMETER_REF) print_mem_expr (outfile, DEBUG_PARAMETER_REF_DECL (in_rtx)); else dump_addr (outfile, " ", XTREE (in_rtx, i)); #endif break; case '*': fputs (" Unknown", outfile); sawclose = 0; break; case 'B': #ifndef GENERATOR_FILE if (XBBDEF (in_rtx, i)) fprintf (outfile, " %i", XBBDEF (in_rtx, i)->index); #endif break; default: gcc_unreachable (); } switch (GET_CODE (in_rtx)) { #ifndef GENERATOR_FILE case MEM: if (__builtin_expect (final_insns_dump_p, false)) fprintf (outfile, " ["); else fprintf (outfile, " [" HOST_WIDE_INT_PRINT_DEC, (HOST_WIDE_INT) MEM_ALIAS_SET (in_rtx)); if (MEM_EXPR (in_rtx)) print_mem_expr (outfile, MEM_EXPR (in_rtx)); if (MEM_OFFSET_KNOWN_P (in_rtx)) fprintf (outfile, "+" HOST_WIDE_INT_PRINT_DEC, MEM_OFFSET (in_rtx)); if (MEM_SIZE_KNOWN_P (in_rtx)) fprintf (outfile, " S" HOST_WIDE_INT_PRINT_DEC, MEM_SIZE (in_rtx)); if (MEM_ALIGN (in_rtx) != 1) fprintf (outfile, " A%u", MEM_ALIGN (in_rtx)); if (!ADDR_SPACE_GENERIC_P (MEM_ADDR_SPACE (in_rtx))) fprintf (outfile, " AS%u", MEM_ADDR_SPACE (in_rtx)); fputc (']', outfile); break; case CONST_DOUBLE: if (FLOAT_MODE_P (GET_MODE (in_rtx))) { char s[60]; real_to_decimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx), sizeof (s), 0, 1); fprintf (outfile, " %s", s); real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx), sizeof (s), 0, 1); fprintf (outfile, " [%s]", s); } break; #endif case CODE_LABEL: fprintf (outfile, " [%d uses]", LABEL_NUSES (in_rtx)); switch (LABEL_KIND (in_rtx)) { case LABEL_NORMAL: break; case LABEL_STATIC_ENTRY: fputs (" [entry]", outfile); break; case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", outfile); break; case LABEL_WEAK_ENTRY: fputs (" [weak entry]", outfile); break; default: gcc_unreachable (); } break; default: break; } if (dump_for_graph && (is_insn || NOTE_P (in_rtx) || LABEL_P (in_rtx) || BARRIER_P (in_rtx))) sawclose = 0; else { fputc (')', outfile); sawclose = 1; } } /* Print an rtx on the current line of FILE. Initially indent IND characters. */ void print_inline_rtx (FILE *outf, const_rtx x, int ind) { int oldsaw = sawclose; int oldindent = indent; sawclose = 0; indent = ind; outfile = outf; print_rtx (x); sawclose = oldsaw; indent = oldindent; } /* Call this function from the debugger to see what X looks like. */ DEBUG_FUNCTION void debug_rtx (const_rtx x) { outfile = stderr; sawclose = 0; print_rtx (x); fprintf (stderr, "\n"); } /* Count of rtx's to print with debug_rtx_list. This global exists because gdb user defined commands have no arguments. */ DEBUG_VARIABLE int debug_rtx_count = 0; /* 0 is treated as equivalent to 1 */ /* Call this function to print list from X on. N is a count of the rtx's to print. Positive values print from the specified rtx on. Negative values print a window around the rtx. EG: -5 prints 2 rtx's on either side (in addition to the specified rtx). */ DEBUG_FUNCTION void debug_rtx_list (const_rtx x, int n) { int i,count; const_rtx insn; count = n == 0 ? 1 : n < 0 ? -n : n; /* If we are printing a window, back up to the start. */ if (n < 0) for (i = count / 2; i > 0; i--) { if (PREV_INSN (x) == 0) break; x = PREV_INSN (x); } for (i = count, insn = x; i > 0 && insn != 0; i--, insn = NEXT_INSN (insn)) { debug_rtx (insn); fprintf (stderr, "\n"); } } /* Call this function to print an rtx list from START to END inclusive. */ DEBUG_FUNCTION void debug_rtx_range (const_rtx start, const_rtx end) { while (1) { debug_rtx (start); fprintf (stderr, "\n"); if (!start || start == end) break; start = NEXT_INSN (start); } } /* Call this function to search an rtx list to find one with insn uid UID, and then call debug_rtx_list to print it, using DEBUG_RTX_COUNT. The found insn is returned to enable further debugging analysis. */ DEBUG_FUNCTION const_rtx debug_rtx_find (const_rtx x, int uid) { while (x != 0 && INSN_UID (x) != uid) x = NEXT_INSN (x); if (x != 0) { debug_rtx_list (x, debug_rtx_count); return x; } else { fprintf (stderr, "insn uid %d not found\n", uid); return 0; } } /* External entry point for printing a chain of insns starting with RTX_FIRST onto file OUTF. A blank line separates insns. If RTX_FIRST is not an insn, then it alone is printed, with no newline. */ void print_rtl (FILE *outf, const_rtx rtx_first) { const_rtx tmp_rtx; outfile = outf; sawclose = 0; if (rtx_first == 0) { fputs (print_rtx_head, outf); fputs ("(nil)\n", outf); } else switch (GET_CODE (rtx_first)) { case INSN: case JUMP_INSN: case CALL_INSN: case NOTE: case CODE_LABEL: case BARRIER: for (tmp_rtx = rtx_first; tmp_rtx != 0; tmp_rtx = NEXT_INSN (tmp_rtx)) { fputs (print_rtx_head, outfile); print_rtx (tmp_rtx); fprintf (outfile, "\n"); } break; default: fputs (print_rtx_head, outfile); print_rtx (rtx_first); } } /* Like print_rtx, except specify a file. */ /* Return nonzero if we actually printed anything. */ int print_rtl_single (FILE *outf, const_rtx x) { outfile = outf; sawclose = 0; fputs (print_rtx_head, outfile); print_rtx (x); putc ('\n', outf); return 1; } /* Like print_rtl except without all the detail; for example, if RTX is a CONST_INT then print in decimal format. */ void print_simple_rtl (FILE *outf, const_rtx x) { flag_simple = 1; print_rtl (outf, x); flag_simple = 0; }
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