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- /* Print RTL for GCC.
- Copyright (C) 1987-2020 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 "alias.h"
- #include "tree.h"
- #include "basic-block.h"
- #include "print-tree.h"
- #include "flags.h"
- #include "predict.h"
- #include "function.h"
- #include "cfg.h"
- #include "basic-block.h"
- #include "diagnostic.h"
- #include "tree-pretty-print.h"
- #include "alloc-pool.h"
- #include "cselib.h"
- #include "dumpfile.h" /* for dump_flags */
- #include "dwarf2out.h"
- #include "pretty-print.h"
- #endif
- #include "print-rtl.h"
- #include "rtl-iter.h"
- /* Disable warnings about quoting issues in the pp_xxx calls below
- that (intentionally) don't follow GCC diagnostic conventions. */
- #if __GNUC__ >= 10
- # pragma GCC diagnostic push
- # pragma GCC diagnostic ignored "-Wformat-diag"
- #endif
- /* 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
- /* Constructor for rtx_writer. */
- rtx_writer::rtx_writer (FILE *outf, int ind, bool simple, bool compact,
- rtx_reuse_manager *reuse_manager)
- : m_outfile (outf), m_sawclose (0), m_indent (ind),
- m_in_call_function_usage (false), m_simple (simple), m_compact (compact),
- m_rtx_reuse_manager (reuse_manager)
- {
- }
- #ifndef GENERATOR_FILE
- /* rtx_reuse_manager's ctor. */
- rtx_reuse_manager::rtx_reuse_manager ()
- : m_next_id (0)
- {
- }
- /* Determine if X is of a kind suitable for dumping via reuse_rtx. */
- static bool
- uses_rtx_reuse_p (const_rtx x)
- {
- if (x == NULL)
- return false;
- switch (GET_CODE (x))
- {
- case DEBUG_EXPR:
- case VALUE:
- case SCRATCH:
- return true;
- /* We don't use reuse_rtx for consts. */
- CASE_CONST_UNIQUE:
- default:
- return false;
- }
- }
- /* Traverse X and its descendents, determining if we see any rtx more than
- once. Any rtx suitable for "reuse_rtx" that is seen more than once is
- assigned an ID. */
- void
- rtx_reuse_manager::preprocess (const_rtx x)
- {
- subrtx_iterator::array_type array;
- FOR_EACH_SUBRTX (iter, array, x, NONCONST)
- if (uses_rtx_reuse_p (*iter))
- {
- if (int *count = m_rtx_occurrence_count.get (*iter))
- {
- if (*(count++) == 1)
- m_rtx_reuse_ids.put (*iter, m_next_id++);
- }
- else
- m_rtx_occurrence_count.put (*iter, 1);
- }
- }
- /* Return true iff X has been assigned a reuse ID. If it has,
- and OUT is non-NULL, then write the reuse ID to *OUT. */
- bool
- rtx_reuse_manager::has_reuse_id (const_rtx x, int *out)
- {
- int *id = m_rtx_reuse_ids.get (x);
- if (id)
- {
- if (out)
- *out = *id;
- return true;
- }
- else
- return false;
- }
- /* Determine if set_seen_def has been called for the given reuse ID. */
- bool
- rtx_reuse_manager::seen_def_p (int reuse_id)
- {
- return bitmap_bit_p (m_defs_seen, reuse_id);
- }
- /* Record that the definition of the given reuse ID has been seen. */
- void
- rtx_reuse_manager::set_seen_def (int reuse_id)
- {
- bitmap_set_bit (m_defs_seen, reuse_id);
- }
- #endif /* #ifndef GENERATOR_FILE */
- #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 X to FILE. */
- static void
- print_poly_int (FILE *file, poly_int64 x)
- {
- HOST_WIDE_INT const_x;
- if (x.is_constant (&const_x))
- fprintf (file, HOST_WIDE_INT_PRINT_DEC, const_x);
- else
- {
- fprintf (file, "[" HOST_WIDE_INT_PRINT_DEC, x.coeffs[0]);
- for (int i = 1; i < NUM_POLY_INT_COEFFS; ++i)
- fprintf (file, ", " HOST_WIDE_INT_PRINT_DEC, x.coeffs[i]);
- fprintf (file, "]");
- }
- }
- /* Subroutine of print_rtx_operand for handling code '0'.
- 0 indicates a field for internal use that should not be printed.
- However there are various special cases, such as the third field
- of a NOTE, where it indicates that the field has several different
- valid contents. */
- void
- rtx_writer::print_rtx_operand_code_0 (const_rtx in_rtx ATTRIBUTE_UNUSED,
- int idx ATTRIBUTE_UNUSED)
- {
- #ifndef GENERATOR_FILE
- if (idx == 1 && GET_CODE (in_rtx) == SYMBOL_REF)
- {
- int flags = SYMBOL_REF_FLAGS (in_rtx);
- if (flags)
- fprintf (m_outfile, " [flags %#x]", flags);
- tree decl = SYMBOL_REF_DECL (in_rtx);
- if (decl)
- print_node_brief (m_outfile, "", decl, dump_flags);
- }
- else if (idx == 3 && 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 (m_outfile, " #");
- else
- fprintf (m_outfile, " %d", NOTE_EH_HANDLER (in_rtx));
- m_sawclose = 1;
- break;
- case NOTE_INSN_BLOCK_BEG:
- case NOTE_INSN_BLOCK_END:
- dump_addr (m_outfile, " ", NOTE_BLOCK (in_rtx));
- m_sawclose = 1;
- break;
- case NOTE_INSN_BASIC_BLOCK:
- {
- basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
- if (bb != 0)
- fprintf (m_outfile, " [bb %d]", bb->index);
- break;
- }
- case NOTE_INSN_DELETED_LABEL:
- case NOTE_INSN_DELETED_DEBUG_LABEL:
- {
- const char *label = NOTE_DELETED_LABEL_NAME (in_rtx);
- if (label)
- fprintf (m_outfile, " (\"%s\")", label);
- else
- fprintf (m_outfile, " \"\"");
- }
- break;
- case NOTE_INSN_SWITCH_TEXT_SECTIONS:
- {
- basic_block bb = NOTE_BASIC_BLOCK (in_rtx);
- if (bb != 0)
- fprintf (m_outfile, " [bb %d]", bb->index);
- break;
- }
- case NOTE_INSN_VAR_LOCATION:
- fputc (' ', m_outfile);
- print_rtx (NOTE_VAR_LOCATION (in_rtx));
- break;
- case NOTE_INSN_CFI:
- fputc ('\n', m_outfile);
- output_cfi_directive (m_outfile, NOTE_CFI (in_rtx));
- fputc ('\t', m_outfile);
- break;
- case NOTE_INSN_BEGIN_STMT:
- case NOTE_INSN_INLINE_ENTRY:
- #ifndef GENERATOR_FILE
- {
- expanded_location xloc
- = expand_location (NOTE_MARKER_LOCATION (in_rtx));
- fprintf (m_outfile, " %s:%i", xloc.file, xloc.line);
- }
- #endif
- break;
- default:
- break;
- }
- }
- else if (idx == 7 && JUMP_P (in_rtx) && JUMP_LABEL (in_rtx) != NULL
- && !m_compact)
- {
- /* Output the JUMP_LABEL reference. */
- fprintf (m_outfile, "\n%s%*s -> ", print_rtx_head, m_indent * 2, "");
- if (GET_CODE (JUMP_LABEL (in_rtx)) == RETURN)
- fprintf (m_outfile, "return");
- else if (GET_CODE (JUMP_LABEL (in_rtx)) == SIMPLE_RETURN)
- fprintf (m_outfile, "simple_return");
- else
- fprintf (m_outfile, "%d", INSN_UID (JUMP_LABEL (in_rtx)));
- }
- else if (idx == 0 && GET_CODE (in_rtx) == VALUE)
- {
- cselib_val *val = CSELIB_VAL_PTR (in_rtx);
- fprintf (m_outfile, " %u:%u", val->uid, val->hash);
- dump_addr (m_outfile, " @", in_rtx);
- dump_addr (m_outfile, "/", (void*)val);
- }
- else if (idx == 0 && GET_CODE (in_rtx) == DEBUG_EXPR)
- {
- fprintf (m_outfile, " D#%i",
- DEBUG_TEMP_UID (DEBUG_EXPR_TREE_DECL (in_rtx)));
- }
- else if (idx == 0 && GET_CODE (in_rtx) == ENTRY_VALUE)
- {
- m_indent += 2;
- if (!m_sawclose)
- fprintf (m_outfile, " ");
- print_rtx (ENTRY_VALUE_EXP (in_rtx));
- m_indent -= 2;
- }
- #endif
- }
- /* Subroutine of print_rtx_operand for handling code 'e'.
- Also called by print_rtx_operand_code_u for handling code 'u'
- for LABEL_REFs when they don't reference a CODE_LABEL. */
- void
- rtx_writer::print_rtx_operand_code_e (const_rtx in_rtx, int idx)
- {
- m_indent += 2;
- if (idx == 6 && INSN_P (in_rtx))
- /* Put REG_NOTES on their own line. */
- fprintf (m_outfile, "\n%s%*s",
- print_rtx_head, m_indent * 2, "");
- if (!m_sawclose)
- fprintf (m_outfile, " ");
- if (idx == 7 && CALL_P (in_rtx))
- {
- m_in_call_function_usage = true;
- print_rtx (XEXP (in_rtx, idx));
- m_in_call_function_usage = false;
- }
- else
- print_rtx (XEXP (in_rtx, idx));
- m_indent -= 2;
- }
- /* Subroutine of print_rtx_operand for handling codes 'E' and 'V'. */
- void
- rtx_writer::print_rtx_operand_codes_E_and_V (const_rtx in_rtx, int idx)
- {
- m_indent += 2;
- if (m_sawclose)
- {
- fprintf (m_outfile, "\n%s%*s",
- print_rtx_head, m_indent * 2, "");
- m_sawclose = 0;
- }
- fputs (" [", m_outfile);
- if (XVEC (in_rtx, idx) != NULL)
- {
- m_indent += 2;
- if (XVECLEN (in_rtx, idx))
- m_sawclose = 1;
- for (int j = 0; j < XVECLEN (in_rtx, idx); j++)
- {
- int j1;
- print_rtx (XVECEXP (in_rtx, idx, j));
- for (j1 = j + 1; j1 < XVECLEN (in_rtx, idx); j1++)
- if (XVECEXP (in_rtx, idx, j) != XVECEXP (in_rtx, idx, j1))
- break;
- if (j1 != j + 1)
- {
- fprintf (m_outfile, " repeated x%i", j1 - j);
- j = j1 - 1;
- }
- }
- m_indent -= 2;
- }
- if (m_sawclose)
- fprintf (m_outfile, "\n%s%*s", print_rtx_head, m_indent * 2, "");
- fputs ("]", m_outfile);
- m_sawclose = 1;
- m_indent -= 2;
- }
- /* Subroutine of print_rtx_operand for handling code 'i'. */
- void
- rtx_writer::print_rtx_operand_code_i (const_rtx in_rtx, int idx)
- {
- if (idx == 4 && INSN_P (in_rtx))
- {
- #ifndef GENERATOR_FILE
- const rtx_insn *in_insn = as_a <const rtx_insn *> (in_rtx);
- /* 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_HAS_LOCATION (in_insn))
- {
- expanded_location xloc = insn_location (in_insn);
- fprintf (m_outfile, " \"%s\":%i:%i", xloc.file, xloc.line,
- xloc.column);
- }
- #endif
- }
- else if (idx == 6 && GET_CODE (in_rtx) == ASM_OPERANDS)
- {
- #ifndef GENERATOR_FILE
- if (ASM_OPERANDS_SOURCE_LOCATION (in_rtx) != UNKNOWN_LOCATION)
- fprintf (m_outfile, " %s:%i",
- LOCATION_FILE (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)),
- LOCATION_LINE (ASM_OPERANDS_SOURCE_LOCATION (in_rtx)));
- #endif
- }
- else if (idx == 1 && GET_CODE (in_rtx) == ASM_INPUT)
- {
- #ifndef GENERATOR_FILE
- if (ASM_INPUT_SOURCE_LOCATION (in_rtx) != UNKNOWN_LOCATION)
- fprintf (m_outfile, " %s:%i",
- LOCATION_FILE (ASM_INPUT_SOURCE_LOCATION (in_rtx)),
- LOCATION_LINE (ASM_INPUT_SOURCE_LOCATION (in_rtx)));
- #endif
- }
- else if (idx == 5 && 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 (m_outfile, " %d", XINT (in_rtx, idx));
- }
- #if !defined(GENERATOR_FILE) && NUM_UNSPECV_VALUES > 0
- else if (idx == 1
- && GET_CODE (in_rtx) == UNSPEC_VOLATILE
- && XINT (in_rtx, 1) >= 0
- && XINT (in_rtx, 1) < NUM_UNSPECV_VALUES)
- fprintf (m_outfile, " %s", unspecv_strings[XINT (in_rtx, 1)]);
- #endif
- #if !defined(GENERATOR_FILE) && NUM_UNSPEC_VALUES > 0
- else if (idx == 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 (m_outfile, " %s", unspec_strings[XINT (in_rtx, 1)]);
- #endif
- else
- {
- int value = XINT (in_rtx, idx);
- const char *name;
- int is_insn = INSN_P (in_rtx);
- /* Don't print INSN_CODEs in compact mode. */
- if (m_compact && is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, idx))
- {
- m_sawclose = 0;
- return;
- }
- if (flag_dump_unnumbered
- && (is_insn || NOTE_P (in_rtx)))
- fputc ('#', m_outfile);
- else
- fprintf (m_outfile, " %d", value);
- if (is_insn && &INSN_CODE (in_rtx) == &XINT (in_rtx, idx)
- && XINT (in_rtx, idx) >= 0
- && (name = get_insn_name (XINT (in_rtx, idx))) != NULL)
- fprintf (m_outfile, " {%s}", name);
- m_sawclose = 0;
- }
- }
- /* Subroutine of print_rtx_operand for handling code 'r'. */
- void
- rtx_writer::print_rtx_operand_code_r (const_rtx in_rtx)
- {
- int is_insn = INSN_P (in_rtx);
- unsigned int regno = REGNO (in_rtx);
- #ifndef GENERATOR_FILE
- /* For hard registers and virtuals, always print the
- regno, except in compact mode. */
- if (regno <= LAST_VIRTUAL_REGISTER && !m_compact)
- fprintf (m_outfile, " %d", regno);
- if (regno < FIRST_PSEUDO_REGISTER)
- fprintf (m_outfile, " %s", reg_names[regno]);
- else if (regno <= LAST_VIRTUAL_REGISTER)
- {
- if (regno == VIRTUAL_INCOMING_ARGS_REGNUM)
- fprintf (m_outfile, " virtual-incoming-args");
- else if (regno == VIRTUAL_STACK_VARS_REGNUM)
- fprintf (m_outfile, " virtual-stack-vars");
- else if (regno == VIRTUAL_STACK_DYNAMIC_REGNUM)
- fprintf (m_outfile, " virtual-stack-dynamic");
- else if (regno == VIRTUAL_OUTGOING_ARGS_REGNUM)
- fprintf (m_outfile, " virtual-outgoing-args");
- else if (regno == VIRTUAL_CFA_REGNUM)
- fprintf (m_outfile, " virtual-cfa");
- else if (regno == VIRTUAL_PREFERRED_STACK_BOUNDARY_REGNUM)
- fprintf (m_outfile, " virtual-preferred-stack-boundary");
- else
- fprintf (m_outfile, " virtual-reg-%d", regno-FIRST_VIRTUAL_REGISTER);
- }
- else
- #endif
- if (flag_dump_unnumbered && is_insn)
- fputc ('#', m_outfile);
- else if (m_compact)
- {
- /* In compact mode, print pseudos with '< and '>' wrapping the regno,
- offseting it by (LAST_VIRTUAL_REGISTER + 1), so that the
- first non-virtual pseudo is dumped as "<0>". */
- gcc_assert (regno > LAST_VIRTUAL_REGISTER);
- fprintf (m_outfile, " <%d>", regno - (LAST_VIRTUAL_REGISTER + 1));
- }
- else
- fprintf (m_outfile, " %d", regno);
- #ifndef GENERATOR_FILE
- if (REG_ATTRS (in_rtx))
- {
- fputs (" [", m_outfile);
- if (regno != ORIGINAL_REGNO (in_rtx))
- fprintf (m_outfile, "orig:%i", ORIGINAL_REGNO (in_rtx));
- if (REG_EXPR (in_rtx))
- print_mem_expr (m_outfile, REG_EXPR (in_rtx));
- if (maybe_ne (REG_OFFSET (in_rtx), 0))
- {
- fprintf (m_outfile, "+");
- print_poly_int (m_outfile, REG_OFFSET (in_rtx));
- }
- fputs (" ]", m_outfile);
- }
- if (regno != ORIGINAL_REGNO (in_rtx))
- fprintf (m_outfile, " [%d]", ORIGINAL_REGNO (in_rtx));
- #endif
- }
- /* Subroutine of print_rtx_operand for handling code 'u'. */
- void
- rtx_writer::print_rtx_operand_code_u (const_rtx in_rtx, int idx)
- {
- /* Don't print insn UIDs for PREV/NEXT_INSN in compact mode. */
- if (m_compact && INSN_CHAIN_CODE_P (GET_CODE (in_rtx)) && idx < 2)
- return;
- if (XEXP (in_rtx, idx) != NULL)
- {
- rtx sub = XEXP (in_rtx, idx);
- 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 (m_outfile, " [# deleted]");
- else
- fprintf (m_outfile, " [%d deleted]", INSN_UID (sub));
- m_sawclose = 0;
- return;
- }
- if (subc != CODE_LABEL)
- {
- print_rtx_operand_code_e (in_rtx, idx);
- return;
- }
- }
- if (flag_dump_unnumbered
- || (flag_dump_unnumbered_links && idx <= 1
- && (INSN_P (in_rtx) || NOTE_P (in_rtx)
- || LABEL_P (in_rtx) || BARRIER_P (in_rtx))))
- fputs (" #", m_outfile);
- else
- fprintf (m_outfile, " %d", INSN_UID (sub));
- }
- else
- fputs (" 0", m_outfile);
- m_sawclose = 0;
- }
- /* Subroutine of print_rtx. Print operand IDX of IN_RTX. */
- void
- rtx_writer::print_rtx_operand (const_rtx in_rtx, int idx)
- {
- const char *format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx));
- switch (format_ptr[idx])
- {
- const char *str;
- case 'T':
- str = XTMPL (in_rtx, idx);
- goto string;
- case 'S':
- case 's':
- str = XSTR (in_rtx, idx);
- string:
- if (str == 0)
- fputs (" (nil)", m_outfile);
- else
- fprintf (m_outfile, " (\"%s\")", str);
- m_sawclose = 1;
- break;
- case '0':
- print_rtx_operand_code_0 (in_rtx, idx);
- break;
- case 'e':
- print_rtx_operand_code_e (in_rtx, idx);
- break;
- case 'E':
- case 'V':
- print_rtx_operand_codes_E_and_V (in_rtx, idx);
- break;
- case 'w':
- if (! m_simple)
- fprintf (m_outfile, " ");
- fprintf (m_outfile, HOST_WIDE_INT_PRINT_DEC, XWINT (in_rtx, idx));
- if (! m_simple && !m_compact)
- fprintf (m_outfile, " [" HOST_WIDE_INT_PRINT_HEX "]",
- (unsigned HOST_WIDE_INT) XWINT (in_rtx, idx));
- break;
- case 'i':
- print_rtx_operand_code_i (in_rtx, idx);
- break;
- case 'p':
- fprintf (m_outfile, " ");
- print_poly_int (m_outfile, SUBREG_BYTE (in_rtx));
- break;
- case 'r':
- print_rtx_operand_code_r (in_rtx);
- break;
- /* Print NOTE_INSN names rather than integer codes. */
- case 'n':
- fprintf (m_outfile, " %s", GET_NOTE_INSN_NAME (XINT (in_rtx, idx)));
- m_sawclose = 0;
- break;
- case 'u':
- print_rtx_operand_code_u (in_rtx, idx);
- break;
- case 't':
- #ifndef GENERATOR_FILE
- if (idx == 0 && GET_CODE (in_rtx) == DEBUG_IMPLICIT_PTR)
- print_mem_expr (m_outfile, DEBUG_IMPLICIT_PTR_DECL (in_rtx));
- else if (idx == 0 && GET_CODE (in_rtx) == DEBUG_PARAMETER_REF)
- print_mem_expr (m_outfile, DEBUG_PARAMETER_REF_DECL (in_rtx));
- else
- dump_addr (m_outfile, " ", XTREE (in_rtx, idx));
- #endif
- break;
- case '*':
- fputs (" Unknown", m_outfile);
- m_sawclose = 0;
- break;
- case 'B':
- /* Don't print basic block ids in compact mode. */
- if (m_compact)
- break;
- #ifndef GENERATOR_FILE
- if (XBBDEF (in_rtx, idx))
- fprintf (m_outfile, " %i", XBBDEF (in_rtx, idx)->index);
- #endif
- break;
- default:
- gcc_unreachable ();
- }
- }
- /* Subroutine of rtx_writer::print_rtx.
- In compact mode, determine if operand IDX of IN_RTX is interesting
- to dump, or (if in a trailing position) it can be omitted. */
- bool
- rtx_writer::operand_has_default_value_p (const_rtx in_rtx, int idx)
- {
- const char *format_ptr = GET_RTX_FORMAT (GET_CODE (in_rtx));
- switch (format_ptr[idx])
- {
- case 'e':
- case 'u':
- return XEXP (in_rtx, idx) == NULL_RTX;
- case 's':
- return XSTR (in_rtx, idx) == NULL;
- case '0':
- switch (GET_CODE (in_rtx))
- {
- case JUMP_INSN:
- /* JUMP_LABELs are always omitted in compact mode, so treat
- any value here as omittable, so that earlier operands can
- potentially be omitted also. */
- return m_compact;
- default:
- return false;
- }
- default:
- return false;
- }
- }
- /* Print IN_RTX onto m_outfile. This is the recursive part of printing. */
- void
- rtx_writer::print_rtx (const_rtx in_rtx)
- {
- int idx = 0;
- if (m_sawclose)
- {
- if (m_simple)
- fputc (' ', m_outfile);
- else
- fprintf (m_outfile, "\n%s%*s", print_rtx_head, m_indent * 2, "");
- m_sawclose = 0;
- }
- if (in_rtx == 0)
- {
- fputs ("(nil)", m_outfile);
- m_sawclose = 1;
- return;
- }
- else if (GET_CODE (in_rtx) > NUM_RTX_CODE)
- {
- fprintf (m_outfile, "(??? bad code %d\n%s%*s)", GET_CODE (in_rtx),
- print_rtx_head, m_indent * 2, "");
- m_sawclose = 1;
- return;
- }
- fputc ('(', m_outfile);
- /* Print name of expression code. */
- /* Handle reuse. */
- #ifndef GENERATOR_FILE
- if (m_rtx_reuse_manager)
- {
- int reuse_id;
- if (m_rtx_reuse_manager->has_reuse_id (in_rtx, &reuse_id))
- {
- /* Have we already seen the defn of this rtx? */
- if (m_rtx_reuse_manager->seen_def_p (reuse_id))
- {
- fprintf (m_outfile, "reuse_rtx %i)", reuse_id);
- m_sawclose = 1;
- return;
- }
- else
- {
- /* First time we've seen this reused-rtx. */
- fprintf (m_outfile, "%i|", reuse_id);
- m_rtx_reuse_manager->set_seen_def (reuse_id);
- }
- }
- }
- #endif /* #ifndef GENERATOR_FILE */
- /* In compact mode, prefix the code of insns with "c",
- giving "cinsn", "cnote" etc. */
- if (m_compact && is_a <const rtx_insn *, const struct rtx_def> (in_rtx))
- {
- /* "ccode_label" is slightly awkward, so special-case it as
- just "clabel". */
- rtx_code code = GET_CODE (in_rtx);
- if (code == CODE_LABEL)
- fprintf (m_outfile, "clabel");
- else
- fprintf (m_outfile, "c%s", GET_RTX_NAME (code));
- }
- else if (m_simple && CONST_INT_P (in_rtx))
- ; /* no code. */
- else
- fprintf (m_outfile, "%s", GET_RTX_NAME (GET_CODE (in_rtx)));
- if (! m_simple)
- {
- if (RTX_FLAG (in_rtx, in_struct))
- fputs ("/s", m_outfile);
- if (RTX_FLAG (in_rtx, volatil))
- fputs ("/v", m_outfile);
- if (RTX_FLAG (in_rtx, unchanging))
- fputs ("/u", m_outfile);
- if (RTX_FLAG (in_rtx, frame_related))
- fputs ("/f", m_outfile);
- if (RTX_FLAG (in_rtx, jump))
- fputs ("/j", m_outfile);
- if (RTX_FLAG (in_rtx, call))
- fputs ("/c", m_outfile);
- if (RTX_FLAG (in_rtx, return_val))
- fputs ("/i", m_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
- && !m_in_call_function_usage)
- fprintf (m_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 (m_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>", m_outfile);
- else
- print_mem_expr (m_outfile, PAT_VAR_LOCATION_DECL (in_rtx));
- fputc (' ', m_outfile);
- print_rtx (PAT_VAR_LOCATION_LOC (in_rtx));
- if (PAT_VAR_LOCATION_STATUS (in_rtx)
- == VAR_INIT_STATUS_UNINITIALIZED)
- fprintf (m_outfile, " [uninit]");
- m_sawclose = 1;
- idx = GET_RTX_LENGTH (VAR_LOCATION);
- }
- #endif
- }
- #ifndef GENERATOR_FILE
- if (CONST_DOUBLE_AS_FLOAT_P (in_rtx))
- idx = 5;
- #endif
- /* For insns, print the INSN_UID. */
- if (INSN_CHAIN_CODE_P (GET_CODE (in_rtx)))
- {
- if (flag_dump_unnumbered)
- fprintf (m_outfile, " #");
- else
- fprintf (m_outfile, " %d", INSN_UID (in_rtx));
- }
- /* Determine which is the final operand to print.
- In compact mode, skip trailing operands that have the default values
- e.g. trailing "(nil)" values. */
- int limit = GET_RTX_LENGTH (GET_CODE (in_rtx));
- if (m_compact)
- while (limit > idx && operand_has_default_value_p (in_rtx, limit - 1))
- limit--;
- /* Get the format string and skip the first elements if we have handled
- them already. */
- for (; idx < limit; idx++)
- print_rtx_operand (in_rtx, idx);
- switch (GET_CODE (in_rtx))
- {
- #ifndef GENERATOR_FILE
- case MEM:
- if (__builtin_expect (final_insns_dump_p, false))
- fprintf (m_outfile, " [");
- else
- fprintf (m_outfile, " [" HOST_WIDE_INT_PRINT_DEC,
- (HOST_WIDE_INT) MEM_ALIAS_SET (in_rtx));
- if (MEM_EXPR (in_rtx))
- print_mem_expr (m_outfile, MEM_EXPR (in_rtx));
- else
- fputc (' ', m_outfile);
- if (MEM_OFFSET_KNOWN_P (in_rtx))
- {
- fprintf (m_outfile, "+");
- print_poly_int (m_outfile, MEM_OFFSET (in_rtx));
- }
- if (MEM_SIZE_KNOWN_P (in_rtx))
- {
- fprintf (m_outfile, " S");
- print_poly_int (m_outfile, MEM_SIZE (in_rtx));
- }
- if (MEM_ALIGN (in_rtx) != 1)
- fprintf (m_outfile, " A%u", MEM_ALIGN (in_rtx));
- if (!ADDR_SPACE_GENERIC_P (MEM_ADDR_SPACE (in_rtx)))
- fprintf (m_outfile, " AS%u", MEM_ADDR_SPACE (in_rtx));
- fputc (']', m_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 (m_outfile, " %s", s);
- real_to_hexadecimal (s, CONST_DOUBLE_REAL_VALUE (in_rtx),
- sizeof (s), 0, 1);
- fprintf (m_outfile, " [%s]", s);
- }
- break;
- case CONST_WIDE_INT:
- fprintf (m_outfile, " ");
- cwi_output_hex (m_outfile, in_rtx);
- break;
- case CONST_POLY_INT:
- fprintf (m_outfile, " [");
- print_dec (CONST_POLY_INT_COEFFS (in_rtx)[0], m_outfile, SIGNED);
- for (unsigned int i = 1; i < NUM_POLY_INT_COEFFS; ++i)
- {
- fprintf (m_outfile, ", ");
- print_dec (CONST_POLY_INT_COEFFS (in_rtx)[i], m_outfile, SIGNED);
- }
- fprintf (m_outfile, "]");
- break;
- #endif
- case CODE_LABEL:
- if (!m_compact)
- fprintf (m_outfile, " [%d uses]", LABEL_NUSES (in_rtx));
- switch (LABEL_KIND (in_rtx))
- {
- case LABEL_NORMAL: break;
- case LABEL_STATIC_ENTRY: fputs (" [entry]", m_outfile); break;
- case LABEL_GLOBAL_ENTRY: fputs (" [global entry]", m_outfile); break;
- case LABEL_WEAK_ENTRY: fputs (" [weak entry]", m_outfile); break;
- default: gcc_unreachable ();
- }
- break;
- default:
- break;
- }
- fputc (')', m_outfile);
- m_sawclose = 1;
- }
- /* Emit a closing parenthesis and newline. */
- void
- rtx_writer::finish_directive ()
- {
- fprintf (m_outfile, ")\n");
- m_sawclose = 0;
- }
- /* Print an rtx on the current line of FILE. Initially indent IND
- characters. */
- void
- print_inline_rtx (FILE *outf, const_rtx x, int ind)
- {
- rtx_writer w (outf, ind, false, false, NULL);
- w.print_rtx (x);
- }
- /* Call this function from the debugger to see what X looks like. */
- DEBUG_FUNCTION void
- debug_rtx (const_rtx x)
- {
- rtx_writer w (stderr, 0, false, false, NULL);
- w.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, "<nil>\n");
- }
- /* Like debug_rtx but with no newline, as debug_helper will add one.
- Note: No debug_slim(rtx_insn *) variant implemented, as this
- function can serve for both rtx and rtx_insn. */
- static void
- debug_slim (const_rtx x)
- {
- rtx_writer w (stderr, 0, false, false, NULL);
- w.print_rtx (x);
- }
- DEFINE_DEBUG_VEC (rtx_def *)
- DEFINE_DEBUG_VEC (rtx_insn *)
- DEFINE_DEBUG_HASH_SET (rtx_def *)
- DEFINE_DEBUG_HASH_SET (rtx_insn *)
- /* 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_insn on. Negative values print a window around the rtx_insn.
- EG: -5 prints 2 rtx_insn's on either side (in addition to the specified
- rtx_insn). */
- DEBUG_FUNCTION void
- debug_rtx_list (const rtx_insn *x, int n)
- {
- int i,count;
- const rtx_insn *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_insn list from START to END
- inclusive. */
- DEBUG_FUNCTION void
- debug_rtx_range (const rtx_insn *start, const rtx_insn *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_insn 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_insn *
- debug_rtx_find (const rtx_insn *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.
- A blank line separates insns.
- If RTX_FIRST is not an insn, then it alone is printed, with no newline. */
- void
- rtx_writer::print_rtl (const_rtx rtx_first)
- {
- const rtx_insn *tmp_rtx;
- if (rtx_first == 0)
- {
- fputs (print_rtx_head, m_outfile);
- fputs ("(nil)\n", m_outfile);
- }
- 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 = as_a <const rtx_insn *> (rtx_first);
- tmp_rtx != 0;
- tmp_rtx = NEXT_INSN (tmp_rtx))
- {
- fputs (print_rtx_head, m_outfile);
- print_rtx (tmp_rtx);
- fprintf (m_outfile, "\n");
- }
- break;
- default:
- fputs (print_rtx_head, m_outfile);
- print_rtx (rtx_first);
- }
- }
- /* 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)
- {
- rtx_writer w (outf, 0, false, false, NULL);
- w.print_rtl (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)
- {
- rtx_writer w (outf, 0, false, false, NULL);
- return w.print_rtl_single_with_indent (x, 0);
- }
- /* Like print_rtl_single, except specify an indentation. */
- int
- rtx_writer::print_rtl_single_with_indent (const_rtx x, int ind)
- {
- char *s_indent = (char *) alloca ((size_t) ind + 1);
- memset ((void *) s_indent, ' ', (size_t) ind);
- s_indent[ind] = '\0';
- fputs (s_indent, m_outfile);
- fputs (print_rtx_head, m_outfile);
- int old_indent = m_indent;
- m_indent = ind;
- m_sawclose = 0;
- print_rtx (x);
- putc ('\n', m_outfile);
- m_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)
- {
- rtx_writer w (outf, 0, true, false, NULL);
- w.print_rtl (x);
- }
- /* Print the elements of VEC to FILE. */
- void
- print_rtx_insn_vec (FILE *file, const vec<rtx_insn *> &vec)
- {
- fputc('{', file);
- unsigned int len = vec.length ();
- for (unsigned int i = 0; i < len; i++)
- {
- print_rtl (file, vec[i]);
- if (i < len - 1)
- fputs (", ", file);
- }
- fputc ('}', file);
- }
- #ifndef GENERATOR_FILE
- /* The functions below try to print RTL in a form resembling assembler
- mnemonics. Because this form is more concise than the "traditional" form
- of RTL printing in Lisp-style, the form printed by this file is called
- "slim". RTL dumps in slim format can be obtained by appending the "-slim"
- option to -fdump-rtl-<pass>. Control flow graph output as a DOT file is
- always printed in slim form.
- The normal interface to the functionality provided in this pretty-printer
- is through the dump_*_slim functions to print to a stream, or via the
- print_*_slim functions to print into a user's pretty-printer.
- It is also possible to obtain a string for a single pattern as a string
- pointer, via str_pattern_slim, but this usage is discouraged. */
- /* For insns we print patterns, and for some patterns we print insns... */
- static void print_insn_with_notes (pretty_printer *, const rtx_insn *);
- /* This recognizes rtx'en classified as expressions. These are always
- represent some action on values or results of other expression, that
- may be stored in objects representing values. */
- static void
- print_exp (pretty_printer *pp, const_rtx x, int verbose)
- {
- const char *st[4];
- const char *fun;
- rtx op[4];
- int i;
- fun = (char *) 0;
- for (i = 0; i < 4; i++)
- {
- st[i] = (char *) 0;
- op[i] = NULL_RTX;
- }
- switch (GET_CODE (x))
- {
- case PLUS:
- op[0] = XEXP (x, 0);
- if (CONST_INT_P (XEXP (x, 1))
- && INTVAL (XEXP (x, 1)) < 0)
- {
- st[1] = "-";
- op[1] = GEN_INT (-INTVAL (XEXP (x, 1)));
- }
- else
- {
- st[1] = "+";
- op[1] = XEXP (x, 1);
- }
- break;
- case LO_SUM:
- op[0] = XEXP (x, 0);
- st[1] = "+low(";
- op[1] = XEXP (x, 1);
- st[2] = ")";
- break;
- case MINUS:
- op[0] = XEXP (x, 0);
- st[1] = "-";
- op[1] = XEXP (x, 1);
- break;
- case COMPARE:
- fun = "cmp";
- op[0] = XEXP (x, 0);
- op[1] = XEXP (x, 1);
- break;
- case NEG:
- st[0] = "-";
- op[0] = XEXP (x, 0);
- break;
- case FMA:
- st[0] = "{";
- op[0] = XEXP (x, 0);
- st[1] = "*";
- op[1] = XEXP (x, 1);
- st[2] = "+";
- op[2] = XEXP (x, 2);
- st[3] = "}";
- break;
- case MULT:
- op[0] = XEXP (x, 0);
- st[1] = "*";
- op[1] = XEXP (x, 1);
- break;
- case DIV:
- op[0] = XEXP (x, 0);
- st[1] = "/";
- op[1] = XEXP (x, 1);
- break;
- case UDIV:
- fun = "udiv";
- op[0] = XEXP (x, 0);
- op[1] = XEXP (x, 1);
- break;
- case MOD:
- op[0] = XEXP (x, 0);
- st[1] = "%";
- op[1] = XEXP (x, 1);
- break;
- case UMOD:
- fun = "umod";
- op[0] = XEXP (x, 0);
- op[1] = XEXP (x, 1);
- break;
- case SMIN:
- fun = "smin";
- op[0] = XEXP (x, 0);
- op[1] = XEXP (x, 1);
- break;
- case SMAX:
- fun = "smax";
- op[0] = XEXP (x, 0);
- op[1] = XEXP (x, 1);
- break;
- case UMIN:
- fun = "umin";
- op[0] = XEXP (x, 0);
- op[1] = XEXP (x, 1);
- break;
- case UMAX:
- fun = "umax";
- op[0] = XEXP (x, 0);
- op[1] = XEXP (x, 1);
- break;
- case NOT:
- st[0] = "~";
- op[0] = XEXP (x, 0);
- break;
- case AND:
- op[0] = XEXP (x, 0);
- st[1] = "&";
- op[1] = XEXP (x, 1);
- break;
- case IOR:
- op[0] = XEXP (x, 0);
- st[1] = "|";
- op[1] = XEXP (x, 1);
- break;
- case XOR:
- op[0] = XEXP (x, 0);
- st[1] = "^";
- op[1] = XEXP (x, 1);
- break;
- case ASHIFT:
- op[0] = XEXP (x, 0);
- st[1] = "<<";
- op[1] = XEXP (x, 1);
- break;
- case LSHIFTRT:
- op[0] = XEXP (x, 0);
- st[1] = " 0>>";
- op[1] = XEXP (x, 1);
- break;
- case ASHIFTRT:
- op[0] = XEXP (x, 0);
- st[1] = ">>";
- op[1] = XEXP (x, 1);
- break;
- case ROTATE:
- op[0] = XEXP (x, 0);
- st[1] = "<-<";
- op[1] = XEXP (x, 1);
- break;
- case ROTATERT:
- op[0] = XEXP (x, 0);
- st[1] = ">->";
- op[1] = XEXP (x, 1);
- break;
- case NE:
- op[0] = XEXP (x, 0);
- st[1] = "!=";
- op[1] = XEXP (x, 1);
- break;
- case EQ:
- op[0] = XEXP (x, 0);
- st[1] = "==";
- op[1] = XEXP (x, 1);
- break;
- case GE:
- op[0] = XEXP (x, 0);
- st[1] = ">=";
- op[1] = XEXP (x, 1);
- break;
- case GT:
- op[0] = XEXP (x, 0);
- st[1] = ">";
- op[1] = XEXP (x, 1);
- break;
- case LE:
- op[0] = XEXP (x, 0);
- st[1] = "<=";
- op[1] = XEXP (x, 1);
- break;
- case LT:
- op[0] = XEXP (x, 0);
- st[1] = "<";
- op[1] = XEXP (x, 1);
- break;
- case SIGN_EXTRACT:
- fun = (verbose) ? "sign_extract" : "sxt";
- op[0] = XEXP (x, 0);
- op[1] = XEXP (x, 1);
- op[2] = XEXP (x, 2);
- break;
- case ZERO_EXTRACT:
- fun = (verbose) ? "zero_extract" : "zxt";
- op[0] = XEXP (x, 0);
- op[1] = XEXP (x, 1);
- op[2] = XEXP (x, 2);
- break;
- case SIGN_EXTEND:
- fun = (verbose) ? "sign_extend" : "sxn";
- op[0] = XEXP (x, 0);
- break;
- case ZERO_EXTEND:
- fun = (verbose) ? "zero_extend" : "zxn";
- op[0] = XEXP (x, 0);
- break;
- case FLOAT_EXTEND:
- fun = (verbose) ? "float_extend" : "fxn";
- op[0] = XEXP (x, 0);
- break;
- case TRUNCATE:
- fun = (verbose) ? "trunc" : "trn";
- op[0] = XEXP (x, 0);
- break;
- case FLOAT_TRUNCATE:
- fun = (verbose) ? "float_trunc" : "ftr";
- op[0] = XEXP (x, 0);
- break;
- case FLOAT:
- fun = (verbose) ? "float" : "flt";
- op[0] = XEXP (x, 0);
- break;
- case UNSIGNED_FLOAT:
- fun = (verbose) ? "uns_float" : "ufl";
- op[0] = XEXP (x, 0);
- break;
- case FIX:
- fun = "fix";
- op[0] = XEXP (x, 0);
- break;
- case UNSIGNED_FIX:
- fun = (verbose) ? "uns_fix" : "ufx";
- op[0] = XEXP (x, 0);
- break;
- case PRE_DEC:
- st[0] = "--";
- op[0] = XEXP (x, 0);
- break;
- case PRE_INC:
- st[0] = "++";
- op[0] = XEXP (x, 0);
- break;
- case POST_DEC:
- op[0] = XEXP (x, 0);
- st[1] = "--";
- break;
- case POST_INC:
- op[0] = XEXP (x, 0);
- st[1] = "++";
- break;
- case PRE_MODIFY:
- st[0] = "pre ";
- op[0] = XEXP (XEXP (x, 1), 0);
- st[1] = "+=";
- op[1] = XEXP (XEXP (x, 1), 1);
- break;
- case POST_MODIFY:
- st[0] = "post ";
- op[0] = XEXP (XEXP (x, 1), 0);
- st[1] = "+=";
- op[1] = XEXP (XEXP (x, 1), 1);
- break;
- case CALL:
- st[0] = "call ";
- op[0] = XEXP (x, 0);
- if (verbose)
- {
- st[1] = " argc:";
- op[1] = XEXP (x, 1);
- }
- break;
- case IF_THEN_ELSE:
- st[0] = "{(";
- op[0] = XEXP (x, 0);
- st[1] = ")?";
- op[1] = XEXP (x, 1);
- st[2] = ":";
- op[2] = XEXP (x, 2);
- st[3] = "}";
- break;
- case TRAP_IF:
- fun = "trap_if";
- op[0] = TRAP_CONDITION (x);
- break;
- case PREFETCH:
- fun = "prefetch";
- op[0] = XEXP (x, 0);
- op[1] = XEXP (x, 1);
- op[2] = XEXP (x, 2);
- break;
- case UNSPEC:
- case UNSPEC_VOLATILE:
- {
- pp_string (pp, "unspec");
- if (GET_CODE (x) == UNSPEC_VOLATILE)
- pp_string (pp, "/v");
- pp_left_bracket (pp);
- for (i = 0; i < XVECLEN (x, 0); i++)
- {
- if (i != 0)
- pp_comma (pp);
- print_pattern (pp, XVECEXP (x, 0, i), verbose);
- }
- pp_string (pp, "] ");
- pp_decimal_int (pp, XINT (x, 1));
- }
- break;
- default:
- {
- /* Most unhandled codes can be printed as pseudo-functions. */
- if (GET_RTX_CLASS (GET_CODE (x)) == RTX_UNARY)
- {
- fun = GET_RTX_NAME (GET_CODE (x));
- op[0] = XEXP (x, 0);
- }
- else if (GET_RTX_CLASS (GET_CODE (x)) == RTX_COMPARE
- || GET_RTX_CLASS (GET_CODE (x)) == RTX_COMM_COMPARE
- || GET_RTX_CLASS (GET_CODE (x)) == RTX_BIN_ARITH
- || GET_RTX_CLASS (GET_CODE (x)) == RTX_COMM_ARITH)
- {
- fun = GET_RTX_NAME (GET_CODE (x));
- op[0] = XEXP (x, 0);
- op[1] = XEXP (x, 1);
- }
- else if (GET_RTX_CLASS (GET_CODE (x)) == RTX_TERNARY)
- {
- fun = GET_RTX_NAME (GET_CODE (x));
- op[0] = XEXP (x, 0);
- op[1] = XEXP (x, 1);
- op[2] = XEXP (x, 2);
- }
- else
- /* Give up, just print the RTX name. */
- st[0] = GET_RTX_NAME (GET_CODE (x));
- }
- break;
- }
- /* Print this as a function? */
- if (fun)
- {
- pp_string (pp, fun);
- pp_left_paren (pp);
- }
- for (i = 0; i < 4; i++)
- {
- if (st[i])
- pp_string (pp, st[i]);
- if (op[i])
- {
- if (fun && i != 0)
- pp_comma (pp);
- print_value (pp, op[i], verbose);
- }
- }
- if (fun)
- pp_right_paren (pp);
- } /* print_exp */
- /* Prints rtxes, I customarily classified as values. They're constants,
- registers, labels, symbols and memory accesses. */
- void
- print_value (pretty_printer *pp, const_rtx x, int verbose)
- {
- char tmp[1024];
- if (!x)
- {
- pp_string (pp, "(nil)");
- return;
- }
- switch (GET_CODE (x))
- {
- case CONST_INT:
- pp_scalar (pp, HOST_WIDE_INT_PRINT_HEX,
- (unsigned HOST_WIDE_INT) INTVAL (x));
- break;
- case CONST_WIDE_INT:
- {
- const char *sep = "<";
- int i;
- for (i = CONST_WIDE_INT_NUNITS (x) - 1; i >= 0; i--)
- {
- pp_string (pp, sep);
- sep = ",";
- sprintf (tmp, HOST_WIDE_INT_PRINT_HEX,
- (unsigned HOST_WIDE_INT) CONST_WIDE_INT_ELT (x, i));
- pp_string (pp, tmp);
- }
- pp_greater (pp);
- }
- break;
- case CONST_POLY_INT:
- pp_left_bracket (pp);
- pp_wide_int (pp, CONST_POLY_INT_COEFFS (x)[0], SIGNED);
- for (unsigned int i = 1; i < NUM_POLY_INT_COEFFS; ++i)
- {
- pp_string (pp, ", ");
- pp_wide_int (pp, CONST_POLY_INT_COEFFS (x)[i], SIGNED);
- }
- pp_right_bracket (pp);
- break;
- case CONST_DOUBLE:
- if (FLOAT_MODE_P (GET_MODE (x)))
- {
- real_to_decimal (tmp, CONST_DOUBLE_REAL_VALUE (x),
- sizeof (tmp), 0, 1);
- pp_string (pp, tmp);
- }
- else
- pp_printf (pp, "<%wx,%wx>",
- (unsigned HOST_WIDE_INT) CONST_DOUBLE_LOW (x),
- (unsigned HOST_WIDE_INT) CONST_DOUBLE_HIGH (x));
- break;
- case CONST_FIXED:
- fixed_to_decimal (tmp, CONST_FIXED_VALUE (x), sizeof (tmp));
- pp_string (pp, tmp);
- break;
- case CONST_STRING:
- pp_string (pp, "\"");
- pretty_print_string (pp, XSTR (x, 0), strlen (XSTR (x, 0)));
- pp_string (pp, "\"");
- break;
- case SYMBOL_REF:
- pp_printf (pp, "`%s'", XSTR (x, 0));
- break;
- case LABEL_REF:
- pp_printf (pp, "L%d", INSN_UID (label_ref_label (x)));
- break;
- case CONST:
- case HIGH:
- case STRICT_LOW_PART:
- pp_printf (pp, "%s(", GET_RTX_NAME (GET_CODE (x)));
- print_value (pp, XEXP (x, 0), verbose);
- pp_right_paren (pp);
- break;
- case REG:
- if (REGNO (x) < FIRST_PSEUDO_REGISTER)
- {
- if (ISDIGIT (reg_names[REGNO (x)][0]))
- pp_modulo (pp);
- pp_string (pp, reg_names[REGNO (x)]);
- }
- else
- pp_printf (pp, "r%d", REGNO (x));
- if (verbose)
- pp_printf (pp, ":%s", GET_MODE_NAME (GET_MODE (x)));
- break;
- case SUBREG:
- print_value (pp, SUBREG_REG (x), verbose);
- pp_printf (pp, "#");
- pp_wide_integer (pp, SUBREG_BYTE (x));
- break;
- case SCRATCH:
- case CC0:
- case PC:
- pp_string (pp, GET_RTX_NAME (GET_CODE (x)));
- break;
- case MEM:
- pp_left_bracket (pp);
- print_value (pp, XEXP (x, 0), verbose);
- pp_right_bracket (pp);
- break;
- case DEBUG_EXPR:
- pp_printf (pp, "D#%i", DEBUG_TEMP_UID (DEBUG_EXPR_TREE_DECL (x)));
- break;
- default:
- print_exp (pp, x, verbose);
- break;
- }
- } /* print_value */
- /* The next step in insn detalization, its pattern recognition. */
- void
- print_pattern (pretty_printer *pp, const_rtx x, int verbose)
- {
- if (! x)
- {
- pp_string (pp, "(nil)");
- return;
- }
- switch (GET_CODE (x))
- {
- case SET:
- print_value (pp, SET_DEST (x), verbose);
- pp_equal (pp);
- print_value (pp, SET_SRC (x), verbose);
- break;
- case RETURN:
- case SIMPLE_RETURN:
- case EH_RETURN:
- pp_string (pp, GET_RTX_NAME (GET_CODE (x)));
- break;
- case CALL:
- print_exp (pp, x, verbose);
- break;
- case CLOBBER:
- case USE:
- pp_printf (pp, "%s ", GET_RTX_NAME (GET_CODE (x)));
- print_value (pp, XEXP (x, 0), verbose);
- break;
- case VAR_LOCATION:
- pp_string (pp, "loc ");
- print_value (pp, PAT_VAR_LOCATION_LOC (x), verbose);
- break;
- case COND_EXEC:
- pp_left_paren (pp);
- if (GET_CODE (COND_EXEC_TEST (x)) == NE
- && XEXP (COND_EXEC_TEST (x), 1) == const0_rtx)
- print_value (pp, XEXP (COND_EXEC_TEST (x), 0), verbose);
- else if (GET_CODE (COND_EXEC_TEST (x)) == EQ
- && XEXP (COND_EXEC_TEST (x), 1) == const0_rtx)
- {
- pp_exclamation (pp);
- print_value (pp, XEXP (COND_EXEC_TEST (x), 0), verbose);
- }
- else
- print_value (pp, COND_EXEC_TEST (x), verbose);
- pp_string (pp, ") ");
- print_pattern (pp, COND_EXEC_CODE (x), verbose);
- break;
- case PARALLEL:
- {
- int i;
- pp_left_brace (pp);
- for (i = 0; i < XVECLEN (x, 0); i++)
- {
- print_pattern (pp, XVECEXP (x, 0, i), verbose);
- pp_semicolon (pp);
- }
- pp_right_brace (pp);
- }
- break;
- case SEQUENCE:
- {
- const rtx_sequence *seq = as_a <const rtx_sequence *> (x);
- pp_string (pp, "sequence{");
- if (INSN_P (seq->element (0)))
- {
- /* Print the sequence insns indented. */
- const char * save_print_rtx_head = print_rtx_head;
- char indented_print_rtx_head[32];
- pp_newline (pp);
- gcc_assert (strlen (print_rtx_head) < sizeof (indented_print_rtx_head) - 4);
- snprintf (indented_print_rtx_head,
- sizeof (indented_print_rtx_head),
- "%s ", print_rtx_head);
- print_rtx_head = indented_print_rtx_head;
- for (int i = 0; i < seq->len (); i++)
- print_insn_with_notes (pp, seq->insn (i));
- pp_printf (pp, "%s ", save_print_rtx_head);
- print_rtx_head = save_print_rtx_head;
- }
- else
- {
- for (int i = 0; i < seq->len (); i++)
- {
- print_pattern (pp, seq->element (i), verbose);
- pp_semicolon (pp);
- }
- }
- pp_right_brace (pp);
- }
- break;
- case ASM_INPUT:
- pp_printf (pp, "asm {%s}", XSTR (x, 0));
- break;
- case ADDR_VEC:
- for (int i = 0; i < XVECLEN (x, 0); i++)
- {
- print_value (pp, XVECEXP (x, 0, i), verbose);
- pp_semicolon (pp);
- }
- break;
- case ADDR_DIFF_VEC:
- for (int i = 0; i < XVECLEN (x, 1); i++)
- {
- print_value (pp, XVECEXP (x, 1, i), verbose);
- pp_semicolon (pp);
- }
- break;
- case TRAP_IF:
- pp_string (pp, "trap_if ");
- print_value (pp, TRAP_CONDITION (x), verbose);
- break;
- case UNSPEC:
- case UNSPEC_VOLATILE:
- /* Fallthru -- leave UNSPECs to print_exp. */
- default:
- print_value (pp, x, verbose);
- }
- } /* print_pattern */
- /* This is the main function in slim rtl visualization mechanism.
- X is an insn, to be printed into PP.
- This function tries to print it properly in human-readable form,
- resembling assembler mnemonics (instead of the older Lisp-style
- form).
- If VERBOSE is TRUE, insns are printed with more complete (but
- longer) pattern names and with extra information, and prefixed
- with their INSN_UIDs. */
- void
- print_insn (pretty_printer *pp, const rtx_insn *x, int verbose)
- {
- if (verbose)
- {
- /* Blech, pretty-print can't print integers with a specified width. */
- char uid_prefix[32];
- snprintf (uid_prefix, sizeof uid_prefix, " %4d: ", INSN_UID (x));
- pp_string (pp, uid_prefix);
- }
- switch (GET_CODE (x))
- {
- case INSN:
- print_pattern (pp, PATTERN (x), verbose);
- break;
- case DEBUG_INSN:
- {
- if (DEBUG_MARKER_INSN_P (x))
- {
- switch (INSN_DEBUG_MARKER_KIND (x))
- {
- case NOTE_INSN_BEGIN_STMT:
- pp_string (pp, "debug begin stmt marker");
- break;
- case NOTE_INSN_INLINE_ENTRY:
- pp_string (pp, "debug inline entry marker");
- break;
- default:
- gcc_unreachable ();
- }
- break;
- }
- const char *name = "?";
- char idbuf[32];
- if (DECL_P (INSN_VAR_LOCATION_DECL (x)))
- {
- tree id = DECL_NAME (INSN_VAR_LOCATION_DECL (x));
- if (id)
- name = IDENTIFIER_POINTER (id);
- else if (TREE_CODE (INSN_VAR_LOCATION_DECL (x))
- == DEBUG_EXPR_DECL)
- {
- sprintf (idbuf, "D#%i",
- DEBUG_TEMP_UID (INSN_VAR_LOCATION_DECL (x)));
- name = idbuf;
- }
- else
- {
- sprintf (idbuf, "D.%i",
- DECL_UID (INSN_VAR_LOCATION_DECL (x)));
- name = idbuf;
- }
- }
- pp_printf (pp, "debug %s => ", name);
- if (VAR_LOC_UNKNOWN_P (INSN_VAR_LOCATION_LOC (x)))
- pp_string (pp, "optimized away");
- else
- print_pattern (pp, INSN_VAR_LOCATION_LOC (x), verbose);
- }
- break;
- case JUMP_INSN:
- print_pattern (pp, PATTERN (x), verbose);
- break;
- case CALL_INSN:
- if (GET_CODE (PATTERN (x)) == PARALLEL)
- print_pattern (pp, XVECEXP (PATTERN (x), 0, 0), verbose);
- else
- print_pattern (pp, PATTERN (x), verbose);
- break;
- case CODE_LABEL:
- pp_printf (pp, "L%d:", INSN_UID (x));
- break;
- case JUMP_TABLE_DATA:
- pp_string (pp, "jump_table_data{\n");
- print_pattern (pp, PATTERN (x), verbose);
- pp_right_brace (pp);
- break;
- case BARRIER:
- pp_string (pp, "barrier");
- break;
- case NOTE:
- {
- pp_string (pp, GET_NOTE_INSN_NAME (NOTE_KIND (x)));
- switch (NOTE_KIND (x))
- {
- case NOTE_INSN_EH_REGION_BEG:
- case NOTE_INSN_EH_REGION_END:
- pp_printf (pp, " %d", NOTE_EH_HANDLER (x));
- break;
- case NOTE_INSN_BLOCK_BEG:
- case NOTE_INSN_BLOCK_END:
- pp_printf (pp, " %d", BLOCK_NUMBER (NOTE_BLOCK (x)));
- break;
- case NOTE_INSN_BASIC_BLOCK:
- pp_printf (pp, " %d", NOTE_BASIC_BLOCK (x)->index);
- break;
- case NOTE_INSN_DELETED_LABEL:
- case NOTE_INSN_DELETED_DEBUG_LABEL:
- {
- const char *label = NOTE_DELETED_LABEL_NAME (x);
- if (label == NULL)
- label = "";
- pp_printf (pp, " (\"%s\")", label);
- }
- break;
- case NOTE_INSN_VAR_LOCATION:
- pp_left_brace (pp);
- print_pattern (pp, NOTE_VAR_LOCATION (x), verbose);
- pp_right_brace (pp);
- break;
- default:
- break;
- }
- break;
- }
- default:
- gcc_unreachable ();
- }
- } /* print_insn */
- /* Pretty-print a slim dump of X (an insn) to PP, including any register
- note attached to the instruction. */
- static void
- print_insn_with_notes (pretty_printer *pp, const rtx_insn *x)
- {
- pp_string (pp, print_rtx_head);
- print_insn (pp, x, 1);
- pp_newline (pp);
- if (INSN_P (x) && REG_NOTES (x))
- for (rtx note = REG_NOTES (x); note; note = XEXP (note, 1))
- {
- pp_printf (pp, "%s %s ", print_rtx_head,
- GET_REG_NOTE_NAME (REG_NOTE_KIND (note)));
- if (GET_CODE (note) == INT_LIST)
- pp_printf (pp, "%d", XINT (note, 0));
- else
- print_pattern (pp, XEXP (note, 0), 1);
- pp_newline (pp);
- }
- }
- /* Print X, an RTL value node, to file F in slim format. Include
- additional information if VERBOSE is nonzero.
- Value nodes are constants, registers, labels, symbols and
- memory. */
- void
- dump_value_slim (FILE *f, const_rtx x, int verbose)
- {
- pretty_printer rtl_slim_pp;
- rtl_slim_pp.buffer->stream = f;
- print_value (&rtl_slim_pp, x, verbose);
- pp_flush (&rtl_slim_pp);
- }
- /* Emit a slim dump of X (an insn) to the file F, including any register
- note attached to the instruction. */
- void
- dump_insn_slim (FILE *f, const rtx_insn *x)
- {
- pretty_printer rtl_slim_pp;
- rtl_slim_pp.buffer->stream = f;
- print_insn_with_notes (&rtl_slim_pp, x);
- pp_flush (&rtl_slim_pp);
- }
- /* Same as above, but stop at LAST or when COUNT == 0.
- If COUNT < 0 it will stop only at LAST or NULL rtx. */
- void
- dump_rtl_slim (FILE *f, const rtx_insn *first, const rtx_insn *last,
- int count, int flags ATTRIBUTE_UNUSED)
- {
- const rtx_insn *insn, *tail;
- pretty_printer rtl_slim_pp;
- rtl_slim_pp.buffer->stream = f;
- tail = last ? NEXT_INSN (last) : NULL;
- for (insn = first;
- (insn != NULL) && (insn != tail) && (count != 0);
- insn = NEXT_INSN (insn))
- {
- print_insn_with_notes (&rtl_slim_pp, insn);
- if (count > 0)
- count--;
- }
- pp_flush (&rtl_slim_pp);
- }
- /* Dumps basic block BB to pretty-printer PP in slim form and without and
- no indentation, for use as a label of a DOT graph record-node. */
- void
- rtl_dump_bb_for_graph (pretty_printer *pp, basic_block bb)
- {
- rtx_insn *insn;
- bool first = true;
- /* TODO: inter-bb stuff. */
- FOR_BB_INSNS (bb, insn)
- {
- if (! first)
- {
- /* pp_bar (pp); */
- /* pp_write_text_to_stream (pp); */
- }
- first = false;
- print_insn_with_notes (pp, insn);
- pp_write_text_as_dot_label_to_stream (pp, /*for_record=*/true);
- }
- }
- /* Pretty-print pattern X of some insn in non-verbose mode.
- Return a string pointer to the pretty-printer buffer.
- This function is only exported exists only to accommodate some older users
- of the slim RTL pretty printers. Please do not use it for new code. */
- const char *
- str_pattern_slim (const_rtx x)
- {
- pretty_printer rtl_slim_pp;
- print_pattern (&rtl_slim_pp, x, 0);
- return ggc_strdup (pp_formatted_text (&rtl_slim_pp));
- }
- /* Emit a slim dump of X (an insn) to stderr. */
- extern void debug_insn_slim (const rtx_insn *);
- DEBUG_FUNCTION void
- debug_insn_slim (const rtx_insn *x)
- {
- dump_insn_slim (stderr, x);
- }
- /* Same as above, but using dump_rtl_slim. */
- extern void debug_rtl_slim (FILE *, const rtx_insn *, const rtx_insn *,
- int, int);
- DEBUG_FUNCTION void
- debug_rtl_slim (const rtx_insn *first, const rtx_insn *last, int count,
- int flags)
- {
- dump_rtl_slim (stderr, first, last, count, flags);
- }
- extern void debug_bb_slim (basic_block);
- DEBUG_FUNCTION void
- debug_bb_slim (basic_block bb)
- {
- dump_bb (stderr, bb, 0, TDF_SLIM | TDF_BLOCKS);
- }
- extern void debug_bb_n_slim (int);
- DEBUG_FUNCTION void
- debug_bb_n_slim (int n)
- {
- basic_block bb = BASIC_BLOCK_FOR_FN (cfun, n);
- debug_bb_slim (bb);
- }
- #endif
- #if __GNUC__ >= 10
- # pragma GCC diagnostic pop
- #endif
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