/* RTL utility routines.
- Copyright (C) 1987, 1988, 1991, 1994, 1997, 1998, 1999, 2000, 2001, 2002,
- 2003, 2004 Free Software Foundation, Inc.
+ 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 2, or (at your option) any later
+Software Foundation; either version 3, or (at your option) any later
version.
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA. */
-
+along with GCC; see the file COPYING3. If not see
+<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"
-#include "real.h"
-#include "ggc.h"
-#include "errors.h"
+#ifdef GENERATOR_FILE
+# include "errors.h"
+#else
+# include "rtlhash.h"
+# include "diagnostic-core.h"
+#endif
\f
/* Indexed by rtx code, gives number of operands for an rtx with that code.
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. */
+ "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 */
/* Indexed by rtx code, gives a character representing the "class" of
that rtx code. See rtl.def for documentation on the defined classes. */
-const char rtx_class[NUM_RTX_CODE] = {
+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 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_size[NUM_RTX_CODE] = {
+const unsigned char rtx_code_size[NUM_RTX_CODE] = {
#define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) \
- ((ENUM) == CONST_INT || (ENUM) == CONST_DOUBLE \
+ (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"
/* Names for kinds of NOTEs and REG_NOTEs. */
-const char * const note_insn_name[NOTE_INSN_MAX - NOTE_INSN_BIAS] =
+const char * const note_insn_name[NOTE_INSN_MAX] =
{
- "", "NOTE_INSN_DELETED",
- "NOTE_INSN_BLOCK_BEG", "NOTE_INSN_BLOCK_END",
- "NOTE_INSN_LOOP_BEG", "NOTE_INSN_LOOP_END",
- "NOTE_INSN_LOOP_CONT", "NOTE_INSN_LOOP_VTOP",
- "NOTE_INSN_LOOP_END_TOP_COND", "NOTE_INSN_FUNCTION_END",
- "NOTE_INSN_PROLOGUE_END", "NOTE_INSN_EPILOGUE_BEG",
- "NOTE_INSN_DELETED_LABEL", "NOTE_INSN_FUNCTION_BEG",
- "NOTE_INSN_EH_REGION_BEG", "NOTE_INSN_EH_REGION_END",
- "NOTE_INSN_REPEATED_LINE_NUMBER",
- "NOTE_INSN_BASIC_BLOCK", "NOTE_INSN_EXPECTED_VALUE",
- "NOTE_INSN_PREDICTION", "NOTE_INSN_VAR_LOCATION"
+#define DEF_INSN_NOTE(NAME) #NAME,
+#include "insn-notes.def"
+#undef DEF_INSN_NOTE
};
-const char * const reg_note_name[] =
+const char * const reg_note_name[REG_NOTE_MAX] =
{
- "", "REG_DEAD", "REG_INC", "REG_EQUIV", "REG_EQUAL",
- "REG_RETVAL", "REG_LIBCALL", "REG_NONNEG",
- "REG_NO_CONFLICT", "REG_UNUSED", "REG_CC_SETTER", "REG_CC_USER",
- "REG_LABEL", "REG_DEP_ANTI", "REG_DEP_OUTPUT", "REG_BR_PROB",
- "REG_VALUE_PROFILE", "REG_NOALIAS", "REG_SAVE_AREA", "REG_BR_PRED",
- "REG_FRAME_RELATED_EXPR", "REG_EH_CONTEXT", "REG_EH_REGION",
- "REG_SAVE_NOTE", "REG_MAYBE_DEAD", "REG_NORETURN",
- "REG_NON_LOCAL_GOTO", "REG_SETJMP", "REG_ALWAYS_RETURN",
- "REG_VTABLE_REF"
+#define DEF_REG_NOTE(NAME) #NAME,
+#include "reg-notes.def"
+#undef DEF_REG_NOTE
};
-
-#ifdef GATHER_STATISTICS
-static int rtx_alloc_counts[(int) LAST_AND_UNUSED_RTX_CODE];
-static int rtx_alloc_sizes[(int) LAST_AND_UNUSED_RTX_CODE];
-static int rtvec_alloc_counts;
-static int rtvec_alloc_sizes;
-#endif
+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;
\f
/* Allocate an rtx vector of N elements.
{
rtvec rt;
- rt = ggc_alloc_rtvec (n);
+ rt = ggc_alloc_rtvec_sized (n);
/* Clear out the vector. */
memset (&rt->elem[0], 0, n * sizeof (rtx));
PUT_NUM_ELEM (rt, n);
-#ifdef GATHER_STATISTICS
- rtvec_alloc_counts++;
- rtvec_alloc_sizes += n * sizeof (rtx);
-#endif
+ 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;
}
all the rest is initialized to zero. */
rtx
-rtx_alloc (RTX_CODE code)
+rtx_alloc (RTX_CODE code MEM_STAT_DECL)
{
- rtx rt;
+ return rtx_alloc_stat_v (code PASS_MEM_STAT, 0);
+}
- rt = ggc_alloc_rtx (code);
+/* Write the wide constant X to OUTFILE. */
- /* We want to clear everything up to the FLD array. Normally, this
- is one int, but we don't want to assume that and it isn't very
- portable anyway; this is. */
+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));
+}
- memset (rt, 0, RTX_HDR_SIZE);
- PUT_CODE (rt, code);
+\f
+/* Return true if ORIG is a sharable CONST. */
-#ifdef GATHER_STATISTICS
- rtx_alloc_counts[code]++;
- rtx_alloc_sizes[code] += RTX_SIZE (code);
-#endif
+bool
+shared_const_p (const_rtx orig)
+{
+ gcc_assert (GET_CODE (orig) == CONST);
- return rt;
+ /* 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));
}
-\f
+
/* Create a new copy of an rtx.
Recursively copies the operands of the rtx,
except for those few rtx codes that are sharable. */
switch (code)
{
case REG:
- case QUEUED:
- case CONST_INT:
- case CONST_DOUBLE:
- case CONST_VECTOR:
+ 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. */
- case ADDRESSOF:
return orig;
case CLOBBER:
- if (REG_P (XEXP (orig, 0)) && REGNO (XEXP (orig, 0)) < FIRST_PSEUDO_REGISTER)
+ /* 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:
- /* CONST can be shared if it contains a SYMBOL_REF. If it contains
- a LABEL_REF, it isn't sharable. */
- if (GET_CODE (XEXP (orig, 0)) == PLUS
- && GET_CODE (XEXP (XEXP (orig, 0), 0)) == SYMBOL_REF
- && GET_CODE (XEXP (XEXP (orig, 0), 1)) == CONST_INT)
+ if (shared_const_p (orig))
return orig;
break;
break;
}
- copy = rtx_alloc (code);
-
- /* Copy the various flags, and other information. We assume that
- all fields need copying, and then clear the fields that should
+ /* 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. */
- memcpy (copy, orig, RTX_HDR_SIZE);
-
- /* We do not copy the USED flag, which is used as a mark bit during
- walks over the RTL. */
- RTX_FLAG (copy, used) = 0;
-
- /* We do not copy FRAME_RELATED for INSNs. */
- if (GET_RTX_CLASS (code) == 'i')
- RTX_FLAG (copy, frame_related) = 0;
- RTX_FLAG (copy, jump) = RTX_FLAG (orig, jump);
- RTX_FLAG (copy, call) = RTX_FLAG (orig, call);
+ 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;
+}
+\f
+/* Nonzero when we are generating CONCATs. */
+int generating_concat_p;
+
+/* Nonzero when we are expanding trees to RTL. */
+int currently_expanding_to_rtl;
+
+\f
+
+/* 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)
{
- copy->u.fld[i] = orig->u.fld[i];
- switch (*format_ptr++)
+ 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 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 'e':
- if (XEXP (orig, i) != NULL)
- XEXP (copy, i) = copy_rtx (XEXP (orig, i));
+ case 'w':
+ if (XWINT (x, i) != XWINT (y, i))
+ return 0;
break;
- case 'E':
- case 'V':
- if (XVEC (orig, i) != NULL)
+ case 'n':
+ case 'i':
+ if (XINT (x, i) != XINT (y, i))
{
- 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));
+#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 't':
- case 'w':
- case 'i':
- case 's':
+ 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 'T':
+ 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':
- case 'B':
+ /* These are just backpointers, so they don't matter. */
+ break;
+
case '0':
- /* These are left unchanged. */
+ 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:
- abort ();
+ gcc_unreachable ();
}
}
- return copy;
-}
-
-/* Create a new copy of an rtx. Only copy just one level. */
-
-rtx
-shallow_copy_rtx (rtx orig)
-{
- rtx copy;
-
- copy = ggc_alloc_rtx (GET_CODE (orig));
- memcpy (copy, orig, RTX_SIZE (GET_CODE (orig)));
- return copy;
+ return 1;
}
-\f
-/* This is 1 until after the rtl generation pass. */
-int rtx_equal_function_value_matters;
-/* Nonzero when we are generating CONCATs. */
-int generating_concat_p;
-\f
/* Return 1 if X and Y are identical-looking rtx's.
- This is the Lisp function EQUAL for rtx arguments. */
+ 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 (rtx x, rtx y)
+rtx_equal_p (const_rtx x, const_rtx y)
{
int i;
int j;
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:
- /* Until rtl generation is complete, don't consider a reference
- to the return register of the current function the same as
- the return from a called function. This eases the job of
- function integration. Once the distinction is no longer
- needed, they can be considered equivalent. */
- return (REGNO (x) == REGNO (y)
- && (! rtx_equal_function_value_matters
- || REG_FUNCTION_VALUE_P (x) == REG_FUNCTION_VALUE_P (y)));
+ return (REGNO (x) == REGNO (y));
case LABEL_REF:
- return XEXP (x, 0) == XEXP (y, 0);
+ 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_DOUBLE:
- case CONST_INT:
- case CONST_VECTOR:
+ CASE_CONST_UNIQUE:
return 0;
+ 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;
}
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;
/* 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)
+ if (rtx_equal_p (XVECEXP (x, i, j), XVECEXP (y, i, j)) == 0)
return 0;
break;
contain anything but integers and other rtx's,
except for within LABEL_REFs and SYMBOL_REFs. */
default:
- abort ();
+ gcc_unreachable ();
}
}
return 1;
}
-void dump_rtx_statistics (void)
+/* 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_VEC (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_VEC (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)
{
-#ifdef GATHER_STATISTICS
- int i;
int total_counts = 0;
int total_sizes = 0;
- fprintf (stderr, "\nRTX Kind Count Bytes\n");
- fprintf (stderr, "---------------------------------------\n");
- for (i = 0; i < LAST_AND_UNUSED_RTX_CODE; i++)
- if (rtx_alloc_counts[i])
- {
- fprintf (stderr, "%-20s %7d %10d\n", GET_RTX_NAME (i),
- rtx_alloc_counts[i], rtx_alloc_sizes[i]);
- total_counts += rtx_alloc_counts[i];
- total_sizes += rtx_alloc_sizes[i];
- }
+
+ 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, "%-20s %7d %10d\n", "rtvec",
- rtvec_alloc_counts, rtvec_alloc_sizes);
+ 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, "%-20s %7d %10d\n",
- "Total", total_counts, total_sizes);
- fprintf (stderr, "---------------------------------------\n");
-#endif
+ fprintf (stderr, "-----------------------------------------------\n");
+ fprintf (stderr, "%-24s " PRsa (6) " " PRsa (9) "\n",
+ "Total", SIZE_AMOUNT (total_counts),
+ SIZE_AMOUNT (total_sizes));
+ fprintf (stderr, "-----------------------------------------------\n");
}
\f
#if defined ENABLE_RTL_CHECKING && (GCC_VERSION >= 2007)
void
-rtl_check_failed_bounds (rtx r, int n, const char *file, int line,
+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",
+ ("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 (rtx r, int n, int c1, const char *file, int line,
+rtl_check_failed_type1 (const_rtx r, int n, int c1, const char *file, int line,
const char *func)
{
internal_error
}
void
-rtl_check_failed_type2 (rtx r, int n, int c1, int c2, const char *file,
+rtl_check_failed_type2 (const_rtx r, int n, int c1, int c2, const char *file,
int line, const char *func)
{
internal_error
}
void
-rtl_check_failed_code1 (rtx r, enum rtx_code code, const char *file,
+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",
+ 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 (rtx r, enum rtx_code code1, enum rtx_code code2,
+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",
+ ("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 (rtvec r, int n, const char *file, int line,
+rtvec_check_failed_bounds (const_rtvec r, int n, const char *file, int line,
const char *func)
{
internal_error
#if defined ENABLE_RTL_FLAG_CHECKING
void
-rtl_check_failed_flag (const char *name, rtx r, const char *file,
+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",
+ ("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 */
projects / thirdparty / gcc.git / blobdiff