From 1bc5aee63eb72b341f506ad058502cd0361f0d10 Mon Sep 17 00:00:00 2001 From: Ben Cheng Date: Tue, 25 Mar 2014 22:37:19 -0700 Subject: Initial checkin of GCC 4.9.0 from trunk (r208799). Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba --- gcc-4.9/gcc/print-rtl.c | 854 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 854 insertions(+) create mode 100644 gcc-4.9/gcc/print-rtl.c (limited to 'gcc-4.9/gcc/print-rtl.c') diff --git a/gcc-4.9/gcc/print-rtl.c b/gcc-4.9/gcc/print-rtl.c new file mode 100644 index 000000000..09ac387d1 --- /dev/null +++ b/gcc-4.9/gcc/print-rtl.c @@ -0,0 +1,854 @@ +/* Print RTL for GCC. + Copyright (C) 1987-2014 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 +. */ + +/* 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 "print-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 "dumpfile.h" /* for dump_flags */ +#include "dwarf2out.h" +#endif + +static FILE *outfile; + +static int sawclose = 0; + +static int indent; + +static bool in_call_function_usage; + +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; + +#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); + + /* 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 + || GET_CODE (in_rtx) == INT_LIST) + && (int)GET_MODE (in_rtx) < REG_NOTE_MAX + && !in_call_function_usage) + 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 (" ", 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 (CONST_DOUBLE_AS_FLOAT_P (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 (" \"\"", outfile); + 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, " "); + if (i == 8 && CALL_P (in_rtx)) + { + in_call_function_usage = true; + print_rtx (XEXP (in_rtx, i)); + in_call_function_usage = false; + } + else + 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 locations. 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_LOCATION (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 + if (ASM_OPERANDS_SOURCE_LOCATION (in_rtx) != UNKNOWN_LOCATION) + fprintf (outfile, " %s:%i", + LOCATION_FILE (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)), + LOCATION_LINE (ASM_OPERANDS_SOURCE_LOCATION (in_rtx))); +#endif + } + else if (i == 1 && GET_CODE (in_rtx) == ASM_INPUT) + { +#ifndef GENERATOR_FILE + if (ASM_INPUT_SOURCE_LOCATION (in_rtx) != UNKNOWN_LOCATION) + fprintf (outfile, " %s:%i", + LOCATION_FILE (ASM_INPUT_SOURCE_LOCATION (in_rtx)), + LOCATION_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)); + else + fputc (' ', outfile); + + 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; + } + + 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"); +} + +/* Dump rtx REF. */ + +DEBUG_FUNCTION void +debug (const rtx_def &ref) +{ + debug_rtx (&ref); +} + +DEBUG_FUNCTION void +debug (const rtx_def *ptr) +{ + if (ptr) + debug (*ptr); + else + 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 JUMP_TABLE_DATA: + 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) +{ + return print_rtl_single_with_indent (outf, x, 0); +} + +/* Like print_rtl_single, except specify a file and indentation. */ + +int +print_rtl_single_with_indent (FILE *outf, const_rtx x, int ind) +{ + int old_indent = indent; + char *s_indent = (char *) alloca ((size_t) ind + 1); + memset ((void *) s_indent, ' ', (size_t) ind); + s_indent[ind] = '\0'; + + indent = ind; + outfile = outf; + sawclose = 0; + fputs (s_indent, outfile); + fputs (print_rtx_head, outfile); + print_rtx (x); + putc ('\n', outf); + indent = old_indent; + 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; +} -- cgit v1.2.3