| /* RTL utility routines. |
| 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" |
| #ifdef GENERATOR_FILE |
| # include "errors.h" |
| #else |
| # include "rtlhash.h" |
| # include "diagnostic-core.h" |
| #endif |
| |
| |
| /* Indexed by rtx code, gives number of operands for an rtx with that code. |
| Does NOT include rtx header data (code and links). */ |
| |
| #define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) sizeof FORMAT - 1 , |
| |
| const unsigned char rtx_length[NUM_RTX_CODE] = { |
| #include "rtl.def" |
| }; |
| |
| #undef DEF_RTL_EXPR |
| |
| /* Indexed by rtx code, gives the name of that kind of rtx, as a C string. */ |
| |
| #define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) NAME , |
| |
| const char * const rtx_name[NUM_RTX_CODE] = { |
| #include "rtl.def" /* rtl expressions are documented here */ |
| }; |
| |
| #undef DEF_RTL_EXPR |
| |
| /* Indexed by rtx code, gives a sequence of operand-types for |
| rtx's of that code. The sequence is a C string in which |
| each character describes one operand. */ |
| |
| const char * const rtx_format[NUM_RTX_CODE] = { |
| /* "*" undefined. |
| can cause a warning message |
| "0" field is unused (or used in a phase-dependent manner) |
| prints nothing |
| "i" an integer |
| prints the integer |
| "n" like "i", but prints entries from `note_insn_name' |
| "w" an integer of width HOST_BITS_PER_WIDE_INT |
| prints the integer |
| "s" a pointer to a string |
| prints the string |
| "S" like "s", but optional: |
| the containing rtx may end before this operand |
| "T" like "s", but treated specially by the RTL reader; |
| only found in machine description patterns. |
| "e" a pointer to an rtl expression |
| prints the expression |
| "E" a pointer to a vector that points to a number of rtl expressions |
| prints a list of the rtl expressions |
| "V" like "E", but optional: |
| the containing rtx may end before this operand |
| "u" a pointer to another insn |
| prints the uid of the insn. |
| "b" is a pointer to a bitmap header. |
| "B" is a basic block pointer. |
| "t" is a tree pointer. |
| "r" a register. |
| "p" is a poly_uint16 offset. */ |
| |
| #define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) FORMAT , |
| #include "rtl.def" /* rtl expressions are defined here */ |
| #undef DEF_RTL_EXPR |
| }; |
| |
| /* Indexed by rtx code, gives a character representing the "class" of |
| that rtx code. See rtl.def for documentation on the defined classes. */ |
| |
| const enum rtx_class rtx_class[NUM_RTX_CODE] = { |
| #define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) CLASS, |
| #include "rtl.def" /* rtl expressions are defined here */ |
| #undef DEF_RTL_EXPR |
| }; |
| |
| /* Whether rtxs with the given code store data in the hwint field. */ |
| |
| #define RTX_CODE_HWINT_P_1(ENUM) \ |
| ((ENUM) == CONST_INT || (ENUM) == CONST_DOUBLE \ |
| || (ENUM) == CONST_FIXED || (ENUM) == CONST_WIDE_INT) |
| #ifdef GENERATOR_FILE |
| #define RTX_CODE_HWINT_P(ENUM) \ |
| (RTX_CODE_HWINT_P_1 (ENUM) || (ENUM) == EQ_ATTR_ALT) |
| #else |
| #define RTX_CODE_HWINT_P RTX_CODE_HWINT_P_1 |
| #endif |
| |
| /* Indexed by rtx code, gives the size of the rtx in bytes. */ |
| |
| const unsigned char rtx_code_size[NUM_RTX_CODE] = { |
| #define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) \ |
| (RTX_CODE_HWINT_P (ENUM) \ |
| ? RTX_HDR_SIZE + (sizeof FORMAT - 1) * sizeof (HOST_WIDE_INT) \ |
| : (ENUM) == REG \ |
| ? RTX_HDR_SIZE + sizeof (reg_info) \ |
| : RTX_HDR_SIZE + (sizeof FORMAT - 1) * sizeof (rtunion)), |
| |
| #include "rtl.def" |
| #undef DEF_RTL_EXPR |
| }; |
| |
| /* Names for kinds of NOTEs and REG_NOTEs. */ |
| |
| const char * const note_insn_name[NOTE_INSN_MAX] = |
| { |
| #define DEF_INSN_NOTE(NAME) #NAME, |
| #include "insn-notes.def" |
| #undef DEF_INSN_NOTE |
| }; |
| |
| const char * const reg_note_name[REG_NOTE_MAX] = |
| { |
| #define DEF_REG_NOTE(NAME) #NAME, |
| #include "reg-notes.def" |
| #undef DEF_REG_NOTE |
| }; |
| |
| static size_t rtx_alloc_counts[(int) LAST_AND_UNUSED_RTX_CODE]; |
| static size_t rtx_alloc_sizes[(int) LAST_AND_UNUSED_RTX_CODE]; |
| static size_t rtvec_alloc_counts; |
| static size_t rtvec_alloc_sizes; |
| |
| |
| /* Allocate an rtx vector of N elements. |
| Store the length, and initialize all elements to zero. */ |
| |
| rtvec |
| rtvec_alloc (int n) |
| { |
| rtvec rt; |
| |
| rt = ggc_alloc_rtvec_sized (n); |
| /* Clear out the vector. */ |
| memset (&rt->elem[0], 0, n * sizeof (rtx)); |
| |
| PUT_NUM_ELEM (rt, n); |
| |
| if (GATHER_STATISTICS) |
| { |
| rtvec_alloc_counts++; |
| rtvec_alloc_sizes += n * sizeof (rtx); |
| } |
| |
| return rt; |
| } |
| |
| /* Create a bitwise copy of VEC. */ |
| |
| rtvec |
| shallow_copy_rtvec (rtvec vec) |
| { |
| rtvec newvec; |
| int n; |
| |
| n = GET_NUM_ELEM (vec); |
| newvec = rtvec_alloc (n); |
| memcpy (&newvec->elem[0], &vec->elem[0], sizeof (rtx) * n); |
| return newvec; |
| } |
| |
| /* Return the number of bytes occupied by rtx value X. */ |
| |
| unsigned int |
| rtx_size (const_rtx x) |
| { |
| if (CONST_WIDE_INT_P (x)) |
| return (RTX_HDR_SIZE |
| + sizeof (struct hwivec_def) |
| + ((CONST_WIDE_INT_NUNITS (x) - 1) |
| * sizeof (HOST_WIDE_INT))); |
| if (CONST_POLY_INT_P (x)) |
| return (RTX_HDR_SIZE |
| + sizeof (struct const_poly_int_def) |
| + CONST_POLY_INT_COEFFS (x).extra_size ()); |
| if (GET_CODE (x) == SYMBOL_REF && SYMBOL_REF_HAS_BLOCK_INFO_P (x)) |
| return RTX_HDR_SIZE + sizeof (struct block_symbol); |
| return RTX_CODE_SIZE (GET_CODE (x)); |
| } |
| |
| /* Allocate an rtx of code CODE with EXTRA bytes in it. The CODE is |
| stored in the rtx; all the rest is initialized to zero. */ |
| |
| rtx |
| rtx_alloc_stat_v (RTX_CODE code MEM_STAT_DECL, int extra) |
| { |
| rtx rt = ggc_alloc_rtx_def_stat (RTX_CODE_SIZE (code) + extra |
| PASS_MEM_STAT); |
| |
| rtx_init (rt, code); |
| |
| if (GATHER_STATISTICS) |
| { |
| rtx_alloc_counts[code]++; |
| rtx_alloc_sizes[code] += RTX_CODE_SIZE (code); |
| } |
| |
| return rt; |
| } |
| |
| /* Allocate an rtx of code CODE. The CODE is stored in the rtx; |
| all the rest is initialized to zero. */ |
| |
| rtx |
| rtx_alloc (RTX_CODE code MEM_STAT_DECL) |
| { |
| return rtx_alloc_stat_v (code PASS_MEM_STAT, 0); |
| } |
| |
| /* Write the wide constant X to OUTFILE. */ |
| |
| void |
| cwi_output_hex (FILE *outfile, const_rtx x) |
| { |
| int i = CWI_GET_NUM_ELEM (x); |
| gcc_assert (i > 0); |
| if (CWI_ELT (x, i - 1) == 0) |
| /* The HOST_WIDE_INT_PRINT_HEX prepends a 0x only if the val is |
| non zero. We want all numbers to have a 0x prefix. */ |
| fprintf (outfile, "0x"); |
| fprintf (outfile, HOST_WIDE_INT_PRINT_HEX, CWI_ELT (x, --i)); |
| while (--i >= 0) |
| fprintf (outfile, HOST_WIDE_INT_PRINT_PADDED_HEX, CWI_ELT (x, i)); |
| } |
| |
| |
| /* Return true if ORIG is a sharable CONST. */ |
| |
| bool |
| shared_const_p (const_rtx orig) |
| { |
| gcc_assert (GET_CODE (orig) == CONST); |
| |
| /* CONST can be shared if it contains a SYMBOL_REF. If it contains |
| a LABEL_REF, it isn't sharable. */ |
| poly_int64 offset; |
| return (GET_CODE (XEXP (orig, 0)) == PLUS |
| && GET_CODE (XEXP (XEXP (orig, 0), 0)) == SYMBOL_REF |
| && poly_int_rtx_p (XEXP (XEXP (orig, 0), 1), &offset)); |
| } |
| |
| |
| /* Create a new copy of an rtx. |
| Recursively copies the operands of the rtx, |
| except for those few rtx codes that are sharable. */ |
| |
| rtx |
| copy_rtx (rtx orig) |
| { |
| rtx copy; |
| int i, j; |
| RTX_CODE code; |
| const char *format_ptr; |
| |
| code = GET_CODE (orig); |
| |
| switch (code) |
| { |
| case REG: |
| case DEBUG_EXPR: |
| case VALUE: |
| CASE_CONST_ANY: |
| case SYMBOL_REF: |
| case CODE_LABEL: |
| case PC: |
| case CC0: |
| case RETURN: |
| case SIMPLE_RETURN: |
| case SCRATCH: |
| /* SCRATCH must be shared because they represent distinct values. */ |
| return orig; |
| case CLOBBER: |
| /* Share clobbers of hard registers (like cc0), but do not share pseudo reg |
| clobbers or clobbers of hard registers that originated as pseudos. |
| This is needed to allow safe register renaming. */ |
| if (REG_P (XEXP (orig, 0)) && REGNO (XEXP (orig, 0)) < FIRST_PSEUDO_REGISTER |
| && ORIGINAL_REGNO (XEXP (orig, 0)) == REGNO (XEXP (orig, 0))) |
| return orig; |
| break; |
| |
| case CONST: |
| if (shared_const_p (orig)) |
| return orig; |
| break; |
| |
| /* A MEM with a constant address is not sharable. The problem is that |
| the constant address may need to be reloaded. If the mem is shared, |
| then reloading one copy of this mem will cause all copies to appear |
| to have been reloaded. */ |
| |
| default: |
| break; |
| } |
| |
| /* Copy the various flags, fields, and other information. We assume |
| that all fields need copying, and then clear the fields that should |
| not be copied. That is the sensible default behavior, and forces |
| us to explicitly document why we are *not* copying a flag. */ |
| copy = shallow_copy_rtx (orig); |
| |
| format_ptr = GET_RTX_FORMAT (GET_CODE (copy)); |
| |
| for (i = 0; i < GET_RTX_LENGTH (GET_CODE (copy)); i++) |
| switch (*format_ptr++) |
| { |
| case 'e': |
| if (XEXP (orig, i) != NULL) |
| XEXP (copy, i) = copy_rtx (XEXP (orig, i)); |
| break; |
| |
| case 'E': |
| case 'V': |
| if (XVEC (orig, i) != NULL) |
| { |
| XVEC (copy, i) = rtvec_alloc (XVECLEN (orig, i)); |
| for (j = 0; j < XVECLEN (copy, i); j++) |
| XVECEXP (copy, i, j) = copy_rtx (XVECEXP (orig, i, j)); |
| } |
| break; |
| |
| case 't': |
| case 'w': |
| case 'i': |
| case 'p': |
| case 's': |
| case 'S': |
| case 'T': |
| case 'u': |
| case 'B': |
| case '0': |
| /* These are left unchanged. */ |
| break; |
| |
| default: |
| gcc_unreachable (); |
| } |
| return copy; |
| } |
| |
| /* Create a new copy of an rtx. Only copy just one level. */ |
| |
| rtx |
| shallow_copy_rtx (const_rtx orig MEM_STAT_DECL) |
| { |
| const unsigned int size = rtx_size (orig); |
| rtx const copy = ggc_alloc_rtx_def_stat (size PASS_MEM_STAT); |
| memcpy (copy, orig, size); |
| switch (GET_CODE (orig)) |
| { |
| /* RTX codes copy_rtx_if_shared_1 considers are shareable, |
| the used flag is often used for other purposes. */ |
| case REG: |
| case DEBUG_EXPR: |
| case VALUE: |
| CASE_CONST_ANY: |
| case SYMBOL_REF: |
| case CODE_LABEL: |
| case PC: |
| case CC0: |
| case RETURN: |
| case SIMPLE_RETURN: |
| case SCRATCH: |
| break; |
| default: |
| /* For all other RTXes clear the used flag on the copy. */ |
| RTX_FLAG (copy, used) = 0; |
| break; |
| } |
| return copy; |
| } |
| |
| /* Nonzero when we are generating CONCATs. */ |
| int generating_concat_p; |
| |
| /* Nonzero when we are expanding trees to RTL. */ |
| int currently_expanding_to_rtl; |
| |
| |
| |
| /* Same as rtx_equal_p, but call CB on each pair of rtx if CB is not NULL. |
| When the callback returns true, we continue with the new pair. |
| Whenever changing this function check if rtx_equal_p below doesn't need |
| changing as well. */ |
| |
| int |
| rtx_equal_p_cb (const_rtx x, const_rtx y, rtx_equal_p_callback_function cb) |
| { |
| int i; |
| int j; |
| enum rtx_code code; |
| const char *fmt; |
| rtx nx, ny; |
| |
| if (x == y) |
| return 1; |
| if (x == 0 || y == 0) |
| return 0; |
| |
| /* Invoke the callback first. */ |
| if (cb != NULL |
| && ((*cb) (&x, &y, &nx, &ny))) |
| return rtx_equal_p_cb (nx, ny, cb); |
| |
| code = GET_CODE (x); |
| /* Rtx's of different codes cannot be equal. */ |
| if (code != GET_CODE (y)) |
| return 0; |
| |
| /* (MULT:SI x y) and (MULT:HI x y) are NOT equivalent. |
| (REG:SI x) and (REG:HI x) are NOT equivalent. */ |
| |
| if (GET_MODE (x) != GET_MODE (y)) |
| return 0; |
| |
| /* MEMs referring to different address space are not equivalent. */ |
| if (code == MEM && MEM_ADDR_SPACE (x) != MEM_ADDR_SPACE (y)) |
| return 0; |
| |
| /* Some RTL can be compared nonrecursively. */ |
| switch (code) |
| { |
| case REG: |
| return (REGNO (x) == REGNO (y)); |
| |
| case LABEL_REF: |
| return label_ref_label (x) == label_ref_label (y); |
| |
| case SYMBOL_REF: |
| return XSTR (x, 0) == XSTR (y, 0); |
| |
| case DEBUG_EXPR: |
| case VALUE: |
| case SCRATCH: |
| CASE_CONST_UNIQUE: |
| return 0; |
| |
| case CONST_VECTOR: |
| if (!same_vector_encodings_p (x, y)) |
| return false; |
| break; |
| |
| case DEBUG_IMPLICIT_PTR: |
| return DEBUG_IMPLICIT_PTR_DECL (x) |
| == DEBUG_IMPLICIT_PTR_DECL (y); |
| |
| case DEBUG_PARAMETER_REF: |
| return DEBUG_PARAMETER_REF_DECL (x) |
| == DEBUG_PARAMETER_REF_DECL (y); |
| |
| case ENTRY_VALUE: |
| return rtx_equal_p_cb (ENTRY_VALUE_EXP (x), ENTRY_VALUE_EXP (y), cb); |
| |
| default: |
| break; |
| } |
| |
| /* Compare the elements. If any pair of corresponding elements |
| fail to match, return 0 for the whole thing. */ |
| |
| fmt = GET_RTX_FORMAT (code); |
| for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--) |
| { |
| switch (fmt[i]) |
| { |
| case 'w': |
| if (XWINT (x, i) != XWINT (y, i)) |
| return 0; |
| break; |
| |
| case 'n': |
| case 'i': |
| if (XINT (x, i) != XINT (y, i)) |
| { |
| #ifndef GENERATOR_FILE |
| if (((code == ASM_OPERANDS && i == 6) |
| || (code == ASM_INPUT && i == 1)) |
| && XINT (x, i) == XINT (y, i)) |
| break; |
| #endif |
| return 0; |
| } |
| break; |
| |
| case 'p': |
| if (maybe_ne (SUBREG_BYTE (x), SUBREG_BYTE (y))) |
| return 0; |
| break; |
| |
| case 'V': |
| case 'E': |
| /* Two vectors must have the same length. */ |
| if (XVECLEN (x, i) != XVECLEN (y, i)) |
| return 0; |
| |
| /* And the corresponding elements must match. */ |
| for (j = 0; j < XVECLEN (x, i); j++) |
| if (rtx_equal_p_cb (XVECEXP (x, i, j), |
| XVECEXP (y, i, j), cb) == 0) |
| return 0; |
| break; |
| |
| case 'e': |
| if (rtx_equal_p_cb (XEXP (x, i), XEXP (y, i), cb) == 0) |
| return 0; |
| break; |
| |
| case 'S': |
| case 's': |
| if ((XSTR (x, i) || XSTR (y, i)) |
| && (! XSTR (x, i) || ! XSTR (y, i) |
| || strcmp (XSTR (x, i), XSTR (y, i)))) |
| return 0; |
| break; |
| |
| case 'u': |
| /* These are just backpointers, so they don't matter. */ |
| break; |
| |
| case '0': |
| case 't': |
| break; |
| |
| /* It is believed that rtx's at this level will never |
| contain anything but integers and other rtx's, |
| except for within LABEL_REFs and SYMBOL_REFs. */ |
| default: |
| gcc_unreachable (); |
| } |
| } |
| return 1; |
| } |
| |
| /* Return 1 if X and Y are identical-looking rtx's. |
| This is the Lisp function EQUAL for rtx arguments. |
| Whenever changing this function check if rtx_equal_p_cb above doesn't need |
| changing as well. */ |
| |
| int |
| rtx_equal_p (const_rtx x, const_rtx y) |
| { |
| int i; |
| int j; |
| enum rtx_code code; |
| const char *fmt; |
| |
| if (x == y) |
| return 1; |
| if (x == 0 || y == 0) |
| return 0; |
| |
| code = GET_CODE (x); |
| /* Rtx's of different codes cannot be equal. */ |
| if (code != GET_CODE (y)) |
| return 0; |
| |
| /* (MULT:SI x y) and (MULT:HI x y) are NOT equivalent. |
| (REG:SI x) and (REG:HI x) are NOT equivalent. */ |
| |
| if (GET_MODE (x) != GET_MODE (y)) |
| return 0; |
| |
| /* MEMs referring to different address space are not equivalent. */ |
| if (code == MEM && MEM_ADDR_SPACE (x) != MEM_ADDR_SPACE (y)) |
| return 0; |
| |
| /* Some RTL can be compared nonrecursively. */ |
| switch (code) |
| { |
| case REG: |
| return (REGNO (x) == REGNO (y)); |
| |
| case LABEL_REF: |
| return label_ref_label (x) == label_ref_label (y); |
| |
| case SYMBOL_REF: |
| return XSTR (x, 0) == XSTR (y, 0); |
| |
| case DEBUG_EXPR: |
| case VALUE: |
| case SCRATCH: |
| CASE_CONST_UNIQUE: |
| return 0; |
| |
| case CONST_VECTOR: |
| if (!same_vector_encodings_p (x, y)) |
| return false; |
| break; |
| |
| case DEBUG_IMPLICIT_PTR: |
| return DEBUG_IMPLICIT_PTR_DECL (x) |
| == DEBUG_IMPLICIT_PTR_DECL (y); |
| |
| case DEBUG_PARAMETER_REF: |
| return DEBUG_PARAMETER_REF_DECL (x) |
| == DEBUG_PARAMETER_REF_DECL (y); |
| |
| case ENTRY_VALUE: |
| return rtx_equal_p (ENTRY_VALUE_EXP (x), ENTRY_VALUE_EXP (y)); |
| |
| default: |
| break; |
| } |
| |
| /* Compare the elements. If any pair of corresponding elements |
| fail to match, return 0 for the whole thing. */ |
| |
| fmt = GET_RTX_FORMAT (code); |
| for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--) |
| { |
| switch (fmt[i]) |
| { |
| case 'w': |
| if (XWINT (x, i) != XWINT (y, i)) |
| return 0; |
| break; |
| |
| case 'n': |
| case 'i': |
| if (XINT (x, i) != XINT (y, i)) |
| { |
| #ifndef GENERATOR_FILE |
| if (((code == ASM_OPERANDS && i == 6) |
| || (code == ASM_INPUT && i == 1)) |
| && XINT (x, i) == XINT (y, i)) |
| break; |
| #endif |
| return 0; |
| } |
| break; |
| |
| case 'p': |
| if (maybe_ne (SUBREG_BYTE (x), SUBREG_BYTE (y))) |
| return 0; |
| break; |
| |
| case 'V': |
| case 'E': |
| /* Two vectors must have the same length. */ |
| if (XVECLEN (x, i) != XVECLEN (y, i)) |
| return 0; |
| |
| /* And the corresponding elements must match. */ |
| for (j = 0; j < XVECLEN (x, i); j++) |
| if (rtx_equal_p (XVECEXP (x, i, j), XVECEXP (y, i, j)) == 0) |
| return 0; |
| break; |
| |
| case 'e': |
| if (rtx_equal_p (XEXP (x, i), XEXP (y, i)) == 0) |
| return 0; |
| break; |
| |
| case 'S': |
| case 's': |
| if ((XSTR (x, i) || XSTR (y, i)) |
| && (! XSTR (x, i) || ! XSTR (y, i) |
| || strcmp (XSTR (x, i), XSTR (y, i)))) |
| return 0; |
| break; |
| |
| case 'u': |
| /* These are just backpointers, so they don't matter. */ |
| break; |
| |
| case '0': |
| case 't': |
| break; |
| |
| /* It is believed that rtx's at this level will never |
| contain anything but integers and other rtx's, |
| except for within LABEL_REFs and SYMBOL_REFs. */ |
| default: |
| gcc_unreachable (); |
| } |
| } |
| return 1; |
| } |
| |
| /* Return true if all elements of VEC are equal. */ |
| |
| bool |
| rtvec_all_equal_p (const_rtvec vec) |
| { |
| const_rtx first = RTVEC_ELT (vec, 0); |
| /* Optimize the important special case of a vector of constants. |
| The main use of this function is to detect whether every element |
| of CONST_VECTOR is the same. */ |
| switch (GET_CODE (first)) |
| { |
| CASE_CONST_UNIQUE: |
| for (int i = 1, n = GET_NUM_ELEM (vec); i < n; ++i) |
| if (first != RTVEC_ELT (vec, i)) |
| return false; |
| return true; |
| |
| default: |
| for (int i = 1, n = GET_NUM_ELEM (vec); i < n; ++i) |
| if (!rtx_equal_p (first, RTVEC_ELT (vec, i))) |
| return false; |
| return true; |
| } |
| } |
| |
| /* Return an indication of which type of insn should have X as a body. |
| In generator files, this can be UNKNOWN if the answer is only known |
| at (GCC) runtime. Otherwise the value is CODE_LABEL, INSN, CALL_INSN |
| or JUMP_INSN. */ |
| |
| enum rtx_code |
| classify_insn (rtx x) |
| { |
| if (LABEL_P (x)) |
| return CODE_LABEL; |
| if (GET_CODE (x) == CALL) |
| return CALL_INSN; |
| if (ANY_RETURN_P (x)) |
| return JUMP_INSN; |
| if (GET_CODE (x) == ASM_OPERANDS && ASM_OPERANDS_LABEL_LENGTH (x)) |
| return JUMP_INSN; |
| if (GET_CODE (x) == SET) |
| { |
| if (GET_CODE (SET_DEST (x)) == PC) |
| return JUMP_INSN; |
| else if (GET_CODE (SET_SRC (x)) == CALL) |
| return CALL_INSN; |
| else |
| return INSN; |
| } |
| if (GET_CODE (x) == PARALLEL) |
| { |
| int j; |
| bool has_return_p = false; |
| for (j = XVECLEN (x, 0) - 1; j >= 0; j--) |
| if (GET_CODE (XVECEXP (x, 0, j)) == CALL) |
| return CALL_INSN; |
| else if (ANY_RETURN_P (XVECEXP (x, 0, j))) |
| has_return_p = true; |
| else if (GET_CODE (XVECEXP (x, 0, j)) == SET |
| && GET_CODE (SET_DEST (XVECEXP (x, 0, j))) == PC) |
| return JUMP_INSN; |
| else if (GET_CODE (XVECEXP (x, 0, j)) == SET |
| && GET_CODE (SET_SRC (XVECEXP (x, 0, j))) == CALL) |
| return CALL_INSN; |
| if (has_return_p) |
| return JUMP_INSN; |
| if (GET_CODE (XVECEXP (x, 0, 0)) == ASM_OPERANDS |
| && ASM_OPERANDS_LABEL_LENGTH (XVECEXP (x, 0, 0))) |
| return JUMP_INSN; |
| } |
| #ifdef GENERATOR_FILE |
| if (GET_CODE (x) == MATCH_OPERAND |
| || GET_CODE (x) == MATCH_OPERATOR |
| || GET_CODE (x) == MATCH_PARALLEL |
| || GET_CODE (x) == MATCH_OP_DUP |
| || GET_CODE (x) == MATCH_DUP |
| || GET_CODE (x) == PARALLEL) |
| return UNKNOWN; |
| #endif |
| return INSN; |
| } |
| |
| /* Comparator of indices based on rtx_alloc_counts. */ |
| |
| static int |
| rtx_count_cmp (const void *p1, const void *p2) |
| { |
| const unsigned *n1 = (const unsigned *)p1; |
| const unsigned *n2 = (const unsigned *)p2; |
| |
| return rtx_alloc_counts[*n1] - rtx_alloc_counts[*n2]; |
| } |
| |
| void |
| dump_rtx_statistics (void) |
| { |
| int total_counts = 0; |
| int total_sizes = 0; |
| |
| if (! GATHER_STATISTICS) |
| { |
| fprintf (stderr, "No RTX statistics\n"); |
| return; |
| } |
| |
| fprintf (stderr, "\nRTX Kind Count Bytes\n"); |
| fprintf (stderr, "-------------------------------------------\n"); |
| |
| auto_vec<unsigned> indices (LAST_AND_UNUSED_RTX_CODE); |
| for (unsigned i = 0; i < LAST_AND_UNUSED_RTX_CODE; i++) |
| indices.quick_push (i); |
| indices.qsort (rtx_count_cmp); |
| |
| for (unsigned i = 0; i < LAST_AND_UNUSED_RTX_CODE; i++) |
| { |
| unsigned j = indices[i]; |
| if (rtx_alloc_counts[j]) |
| { |
| fprintf (stderr, "%-24s " PRsa (6) " " PRsa (9) "\n", |
| GET_RTX_NAME (j), |
| SIZE_AMOUNT (rtx_alloc_counts[j]), |
| SIZE_AMOUNT (rtx_alloc_sizes[j])); |
| total_counts += rtx_alloc_counts[j]; |
| total_sizes += rtx_alloc_sizes[j]; |
| } |
| } |
| |
| if (rtvec_alloc_counts) |
| { |
| fprintf (stderr, "%-24s " PRsa (6) " " PRsa (9) "\n", "rtvec", |
| SIZE_AMOUNT (rtvec_alloc_counts), |
| SIZE_AMOUNT (rtvec_alloc_sizes)); |
| total_counts += rtvec_alloc_counts; |
| total_sizes += rtvec_alloc_sizes; |
| } |
| fprintf (stderr, "-----------------------------------------------\n"); |
| fprintf (stderr, "%-24s " PRsa (6) " " PRsa (9) "\n", |
| "Total", SIZE_AMOUNT (total_counts), |
| SIZE_AMOUNT (total_sizes)); |
| fprintf (stderr, "-----------------------------------------------\n"); |
| } |
| |
| #if defined ENABLE_RTL_CHECKING && (GCC_VERSION >= 2007) |
| void |
| rtl_check_failed_bounds (const_rtx r, int n, const char *file, int line, |
| const char *func) |
| { |
| internal_error |
| ("RTL check: access of elt %d of '%s' with last elt %d in %s, at %s:%d", |
| n, GET_RTX_NAME (GET_CODE (r)), GET_RTX_LENGTH (GET_CODE (r)) - 1, |
| func, trim_filename (file), line); |
| } |
| |
| void |
| rtl_check_failed_type1 (const_rtx r, int n, int c1, const char *file, int line, |
| const char *func) |
| { |
| internal_error |
| ("RTL check: expected elt %d type '%c', have '%c' (rtx %s) in %s, at %s:%d", |
| n, c1, GET_RTX_FORMAT (GET_CODE (r))[n], GET_RTX_NAME (GET_CODE (r)), |
| func, trim_filename (file), line); |
| } |
| |
| void |
| rtl_check_failed_type2 (const_rtx r, int n, int c1, int c2, const char *file, |
| int line, const char *func) |
| { |
| internal_error |
| ("RTL check: expected elt %d type '%c' or '%c', have '%c' (rtx %s) in %s, at %s:%d", |
| n, c1, c2, GET_RTX_FORMAT (GET_CODE (r))[n], GET_RTX_NAME (GET_CODE (r)), |
| func, trim_filename (file), line); |
| } |
| |
| void |
| rtl_check_failed_code1 (const_rtx r, enum rtx_code code, const char *file, |
| int line, const char *func) |
| { |
| internal_error ("RTL check: expected code '%s', have '%s' in %s, at %s:%d", |
| GET_RTX_NAME (code), GET_RTX_NAME (GET_CODE (r)), func, |
| trim_filename (file), line); |
| } |
| |
| void |
| rtl_check_failed_code2 (const_rtx r, enum rtx_code code1, enum rtx_code code2, |
| const char *file, int line, const char *func) |
| { |
| internal_error |
| ("RTL check: expected code '%s' or '%s', have '%s' in %s, at %s:%d", |
| GET_RTX_NAME (code1), GET_RTX_NAME (code2), GET_RTX_NAME (GET_CODE (r)), |
| func, trim_filename (file), line); |
| } |
| |
| void |
| rtl_check_failed_code3 (const_rtx r, enum rtx_code code1, enum rtx_code code2, |
| enum rtx_code code3, const char *file, int line, |
| const char *func) |
| { |
| internal_error |
| ("RTL check: expected code '%s', '%s' or '%s', have '%s' in %s, at %s:%d", |
| GET_RTX_NAME (code1), GET_RTX_NAME (code2), GET_RTX_NAME (code3), |
| GET_RTX_NAME (GET_CODE (r)), func, trim_filename (file), line); |
| } |
| |
| void |
| rtl_check_failed_code_mode (const_rtx r, enum rtx_code code, machine_mode mode, |
| bool not_mode, const char *file, int line, |
| const char *func) |
| { |
| internal_error ((not_mode |
| ? ("RTL check: expected code '%s' and not mode '%s', " |
| "have code '%s' and mode '%s' in %s, at %s:%d") |
| : ("RTL check: expected code '%s' and mode '%s', " |
| "have code '%s' and mode '%s' in %s, at %s:%d")), |
| GET_RTX_NAME (code), GET_MODE_NAME (mode), |
| GET_RTX_NAME (GET_CODE (r)), GET_MODE_NAME (GET_MODE (r)), |
| func, trim_filename (file), line); |
| } |
| |
| /* Report that line LINE of FILE tried to access the block symbol fields |
| of a non-block symbol. FUNC is the function that contains the line. */ |
| |
| void |
| rtl_check_failed_block_symbol (const char *file, int line, const char *func) |
| { |
| internal_error |
| ("RTL check: attempt to treat non-block symbol as a block symbol " |
| "in %s, at %s:%d", func, trim_filename (file), line); |
| } |
| |
| /* XXX Maybe print the vector? */ |
| void |
| cwi_check_failed_bounds (const_rtx x, int n, const char *file, int line, |
| const char *func) |
| { |
| internal_error |
| ("RTL check: access of hwi elt %d of vector with last elt %d in %s, at %s:%d", |
| n, CWI_GET_NUM_ELEM (x) - 1, func, trim_filename (file), line); |
| } |
| |
| /* XXX Maybe print the vector? */ |
| void |
| rtvec_check_failed_bounds (const_rtvec r, int n, const char *file, int line, |
| const char *func) |
| { |
| internal_error |
| ("RTL check: access of elt %d of vector with last elt %d in %s, at %s:%d", |
| n, GET_NUM_ELEM (r) - 1, func, trim_filename (file), line); |
| } |
| #endif /* ENABLE_RTL_CHECKING */ |
| |
| #if defined ENABLE_RTL_FLAG_CHECKING |
| void |
| rtl_check_failed_flag (const char *name, const_rtx r, const char *file, |
| int line, const char *func) |
| { |
| internal_error |
| ("RTL flag check: %s used with unexpected rtx code '%s' in %s, at %s:%d", |
| name, GET_RTX_NAME (GET_CODE (r)), func, trim_filename (file), line); |
| } |
| #endif /* ENABLE_RTL_FLAG_CHECKING */ |