Implemented project structure

xpack-riscv-none-elf-gcc-13.4.0-1/lib/gcc/riscv-none-elf/13.4.0/plugin/include/hwint.h

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+/* HOST_WIDE_INT definitions for the GNU compiler.
+   Copyright (C) 1998-2023 Free Software Foundation, Inc.
+
+   This file is part of GCC.
+
+   Provide definitions for macros which depend on HOST_BITS_PER_INT
+   and HOST_BITS_PER_LONG.  */
+
+#ifndef GCC_HWINT_H
+#define GCC_HWINT_H
+
+/* This describes the machine the compiler is hosted on.  */
+#define HOST_BITS_PER_CHAR  CHAR_BIT
+#define HOST_BITS_PER_SHORT (CHAR_BIT * SIZEOF_SHORT)
+#define HOST_BITS_PER_INT   (CHAR_BIT * SIZEOF_INT)
+#define HOST_BITS_PER_LONG  (CHAR_BIT * SIZEOF_LONG)
+#define HOST_BITS_PER_PTR   (CHAR_BIT * SIZEOF_VOID_P)
+
+/* The string that should be inserted into a printf style format to
+   indicate a "long" operand.  */
+#ifndef HOST_LONG_FORMAT
+#define HOST_LONG_FORMAT "l"
+#endif
+
+/* The string that should be inserted into a printf style format to
+   indicate a "long long" operand.  */
+#ifndef HOST_LONG_LONG_FORMAT
+#define HOST_LONG_LONG_FORMAT "ll"
+#endif
+
+/* If HAVE_LONG_LONG and SIZEOF_LONG_LONG aren't defined, but
+   GCC_VERSION >= 3000, assume this is the second or later stage of a
+   bootstrap, we do have long long, and it's 64 bits.  (This is
+   required by C99; we do have some ports that violate that assumption
+   but they're all cross-compile-only.)  Just in case, force a
+   constraint violation if that assumption is incorrect.  */
+#if !defined HAVE_LONG_LONG
+# if GCC_VERSION >= 3000
+#  define HAVE_LONG_LONG 1
+#  define SIZEOF_LONG_LONG 8
+extern char sizeof_long_long_must_be_8[sizeof (long long) == 8 ? 1 : -1];
+# endif
+#endif
+
+#ifdef HAVE_LONG_LONG
+# define HOST_BITS_PER_LONGLONG (CHAR_BIT * SIZEOF_LONG_LONG)
+#endif
+
+/* Set HOST_WIDE_INT, this should be always 64 bits.
+   The underlying type is matched to that of int64_t and assumed
+   to be either long or long long.  */
+
+#define HOST_BITS_PER_WIDE_INT 64
+#if INT64_T_IS_LONG   
+#   define HOST_WIDE_INT long
+#   define HOST_WIDE_INT_C(X) X ## L
+#else
+# if HOST_BITS_PER_LONGLONG == 64
+#   define HOST_WIDE_INT long long
+#   define HOST_WIDE_INT_C(X) X ## LL
+# else
+   #error "Unable to find a suitable type for HOST_WIDE_INT"
+# endif
+#endif
+
+#define HOST_WIDE_INT_UC(X) HOST_WIDE_INT_C (X ## U)
+#define HOST_WIDE_INT_0 HOST_WIDE_INT_C (0)
+#define HOST_WIDE_INT_0U HOST_WIDE_INT_UC (0)
+#define HOST_WIDE_INT_1 HOST_WIDE_INT_C (1)
+#define HOST_WIDE_INT_1U HOST_WIDE_INT_UC (1)
+#define HOST_WIDE_INT_M1 HOST_WIDE_INT_C (-1)
+#define HOST_WIDE_INT_M1U HOST_WIDE_INT_UC (-1)
+
+/* This is a magic identifier which allows GCC to figure out the type
+   of HOST_WIDE_INT for %wd specifier checks.  You must issue this
+   typedef before using the __asm_fprintf__ format attribute.  */
+typedef HOST_WIDE_INT __gcc_host_wide_int__;
+
+/* Provide C99 <inttypes.h> style format definitions for 64bits.  */
+#ifndef HAVE_INTTYPES_H
+#if INT64_T_IS_LONG
+# define GCC_PRI64 HOST_LONG_FORMAT
+#else
+# define GCC_PRI64 HOST_LONG_LONG_FORMAT
+#endif
+#undef PRId64
+#define PRId64 GCC_PRI64 "d"
+#undef PRIi64
+#define PRIi64 GCC_PRI64 "i"
+#undef PRIo64
+#define PRIo64 GCC_PRI64 "o"
+#undef PRIu64
+#define PRIu64 GCC_PRI64 "u"
+#undef PRIx64
+#define PRIx64 GCC_PRI64 "x"
+#undef PRIX64
+#define PRIX64 GCC_PRI64 "X"
+#endif
+
+/* Various printf format strings for HOST_WIDE_INT.  */
+
+#if INT64_T_IS_LONG
+# define HOST_WIDE_INT_PRINT HOST_LONG_FORMAT
+# define HOST_WIDE_INT_PRINT_C "L"
+#else
+# define HOST_WIDE_INT_PRINT HOST_LONG_LONG_FORMAT
+# define HOST_WIDE_INT_PRINT_C "LL"
+#endif
+
+#define HOST_WIDE_INT_PRINT_DEC "%" PRId64
+#define HOST_WIDE_INT_PRINT_DEC_C "%" PRId64 HOST_WIDE_INT_PRINT_C
+#define HOST_WIDE_INT_PRINT_UNSIGNED "%" PRIu64
+#define HOST_WIDE_INT_PRINT_HEX "%#" PRIx64
+#define HOST_WIDE_INT_PRINT_HEX_PURE "%" PRIx64
+#define HOST_WIDE_INT_PRINT_DOUBLE_HEX "0x%" PRIx64 "%016" PRIx64
+#define HOST_WIDE_INT_PRINT_PADDED_HEX "%016" PRIx64
+
+/* Define HOST_WIDEST_FAST_INT to the widest integer type supported
+   efficiently in hardware.  (That is, the widest integer type that fits
+   in a hardware register.)  Normally this is "long" but on some hosts it
+   should be "long long" or "__int64".  This is no convenient way to
+   autodetect this, so such systems must set a flag in config.host; see there
+   for details.  */
+
+#ifdef USE_LONG_LONG_FOR_WIDEST_FAST_INT
+#  ifdef HAVE_LONG_LONG
+#    define HOST_WIDEST_FAST_INT long long
+#    define HOST_BITS_PER_WIDEST_FAST_INT HOST_BITS_PER_LONGLONG
+#  else
+#    error "Your host said it wanted to use long long but that does not exist"
+#  endif
+#else
+#  define HOST_WIDEST_FAST_INT long
+#  define HOST_BITS_PER_WIDEST_FAST_INT HOST_BITS_PER_LONG
+#endif
+
+/* Inline functions operating on HOST_WIDE_INT.  */
+
+/* Return X with all but the lowest bit masked off.  */
+
+inline unsigned HOST_WIDE_INT
+least_bit_hwi (unsigned HOST_WIDE_INT x)
+{
+  return (x & -x);
+}
+
+/* True if X is zero or a power of two.  */
+
+inline bool
+pow2_or_zerop (unsigned HOST_WIDE_INT x)
+{
+  return least_bit_hwi (x) == x;
+}
+
+/* True if X is a power of two.  */
+
+inline bool
+pow2p_hwi (unsigned HOST_WIDE_INT x)
+{
+  return x && pow2_or_zerop (x);
+}
+
+#if GCC_VERSION < 3004
+
+extern int clz_hwi (unsigned HOST_WIDE_INT x);
+extern int ctz_hwi (unsigned HOST_WIDE_INT x);
+extern int ffs_hwi (unsigned HOST_WIDE_INT x);
+
+/* Return the number of set bits in X.  */
+extern int popcount_hwi (unsigned HOST_WIDE_INT x);
+
+/* Return log2, or -1 if not exact.  */
+extern int exact_log2                  (unsigned HOST_WIDE_INT);
+
+/* Return floor of log2, with -1 for zero.  */
+extern int floor_log2                  (unsigned HOST_WIDE_INT);
+
+/* Return the smallest n such that 2**n >= X.  */
+extern int ceil_log2			(unsigned HOST_WIDE_INT);
+
+#else /* GCC_VERSION >= 3004 */
+
+/* For convenience, define 0 -> word_size.  */
+inline int
+clz_hwi (unsigned HOST_WIDE_INT x)
+{
+  if (x == 0)
+    return HOST_BITS_PER_WIDE_INT;
+# if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
+  return __builtin_clzl (x);
+# elif HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONGLONG
+  return __builtin_clzll (x);
+# else
+  return __builtin_clz (x);
+# endif
+}
+
+inline int
+ctz_hwi (unsigned HOST_WIDE_INT x)
+{
+  if (x == 0)
+    return HOST_BITS_PER_WIDE_INT;
+# if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
+  return __builtin_ctzl (x);
+# elif HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONGLONG
+  return __builtin_ctzll (x);
+# else
+  return __builtin_ctz (x);
+# endif
+}
+
+inline int
+ffs_hwi (unsigned HOST_WIDE_INT x)
+{
+# if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
+  return __builtin_ffsl (x);
+# elif HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONGLONG
+  return __builtin_ffsll (x);
+# else
+  return __builtin_ffs (x);
+# endif
+}
+
+inline int
+popcount_hwi (unsigned HOST_WIDE_INT x)
+{
+# if HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONG
+  return __builtin_popcountl (x);
+# elif HOST_BITS_PER_WIDE_INT == HOST_BITS_PER_LONGLONG
+  return __builtin_popcountll (x);
+# else
+  return __builtin_popcount (x);
+# endif
+}
+
+inline int
+floor_log2 (unsigned HOST_WIDE_INT x)
+{
+  return HOST_BITS_PER_WIDE_INT - 1 - clz_hwi (x);
+}
+
+inline int
+ceil_log2 (unsigned HOST_WIDE_INT x)
+{
+  return x == 0 ? 0 : floor_log2 (x - 1) + 1;
+}
+
+inline int
+exact_log2 (unsigned HOST_WIDE_INT x)
+{
+  return pow2p_hwi (x) ? ctz_hwi (x) : -1;
+}
+
+#endif /* GCC_VERSION >= 3004 */
+
+#define HOST_WIDE_INT_MIN (HOST_WIDE_INT) \
+  (HOST_WIDE_INT_1U << (HOST_BITS_PER_WIDE_INT - 1))
+#define HOST_WIDE_INT_MAX (~(HOST_WIDE_INT_MIN))
+
+extern HOST_WIDE_INT abs_hwi (HOST_WIDE_INT);
+extern unsigned HOST_WIDE_INT absu_hwi (HOST_WIDE_INT);
+extern HOST_WIDE_INT gcd (HOST_WIDE_INT, HOST_WIDE_INT);
+extern HOST_WIDE_INT pos_mul_hwi (HOST_WIDE_INT, HOST_WIDE_INT);
+extern HOST_WIDE_INT mul_hwi (HOST_WIDE_INT, HOST_WIDE_INT);
+extern HOST_WIDE_INT least_common_multiple (HOST_WIDE_INT, HOST_WIDE_INT);
+
+/* Like ctz_hwi, except 0 when x == 0.  */
+
+inline int
+ctz_or_zero (unsigned HOST_WIDE_INT x)
+{
+  return ffs_hwi (x) - 1;
+}
+
+/* Sign extend SRC starting from PREC.  */
+
+inline HOST_WIDE_INT
+sext_hwi (HOST_WIDE_INT src, unsigned int prec)
+{
+  if (prec == HOST_BITS_PER_WIDE_INT)
+    return src;
+  else
+#if defined (__GNUC__)
+    {
+      /* Take the faster path if the implementation-defined bits it's relying
+	 on are implemented the way we expect them to be.  Namely, conversion
+	 from unsigned to signed preserves bit pattern, and right shift of
+	 a signed value propagates the sign bit.
+	 We have to convert from signed to unsigned and back, because when left
+	 shifting signed values, any overflow is undefined behavior.  */
+      gcc_checking_assert (prec < HOST_BITS_PER_WIDE_INT);
+      int shift = HOST_BITS_PER_WIDE_INT - prec;
+      return ((HOST_WIDE_INT) ((unsigned HOST_WIDE_INT) src << shift)) >> shift;
+    }
+#else
+    {
+      /* Fall back to the slower, well defined path otherwise.  */
+      gcc_checking_assert (prec < HOST_BITS_PER_WIDE_INT);
+      HOST_WIDE_INT sign_mask = HOST_WIDE_INT_1 << (prec - 1);
+      HOST_WIDE_INT value_mask = (HOST_WIDE_INT_1U << prec) - HOST_WIDE_INT_1U;
+      return (((src & value_mask) ^ sign_mask) - sign_mask);
+    }
+#endif
+}
+
+/* Zero extend SRC starting from PREC.  */
+inline unsigned HOST_WIDE_INT
+zext_hwi (unsigned HOST_WIDE_INT src, unsigned int prec)
+{
+  if (prec == HOST_BITS_PER_WIDE_INT)
+    return src;
+  else
+    {
+      gcc_checking_assert (prec < HOST_BITS_PER_WIDE_INT);
+      return src & ((HOST_WIDE_INT_1U << prec) - 1);
+    }
+}
+
+/* Compute the absolute value of X.  */
+
+inline HOST_WIDE_INT
+abs_hwi (HOST_WIDE_INT x)
+{
+  gcc_checking_assert (x != HOST_WIDE_INT_MIN);
+  return x >= 0 ? x : -x;
+}
+
+/* Compute the absolute value of X as an unsigned type.  */
+
+inline unsigned HOST_WIDE_INT
+absu_hwi (HOST_WIDE_INT x)
+{
+  return x >= 0 ? (unsigned HOST_WIDE_INT)x : -(unsigned HOST_WIDE_INT)x;
+}
+
+/* Compute the sum of signed A and B and indicate in *OVERFLOW whether
+   that operation overflowed.  */
+
+inline HOST_WIDE_INT
+add_hwi (HOST_WIDE_INT a, HOST_WIDE_INT b, bool *overflow)
+{
+#if GCC_VERSION < 11000
+  unsigned HOST_WIDE_INT result = a + (unsigned HOST_WIDE_INT)b;
+  if ((((result ^ a) & (result ^ b))
+       >> (HOST_BITS_PER_WIDE_INT - 1)) & 1)
+    *overflow = true;
+  else
+    *overflow = false;
+  return result;
+#else
+  HOST_WIDE_INT result;
+  *overflow = __builtin_add_overflow (a, b, &result);
+  return result;
+#endif
+}
+
+/* Compute the product of signed A and B and indicate in *OVERFLOW whether
+   that operation overflowed.  */
+
+inline HOST_WIDE_INT
+mul_hwi (HOST_WIDE_INT a, HOST_WIDE_INT b, bool *overflow)
+{
+#if GCC_VERSION < 11000
+  unsigned HOST_WIDE_INT result = a * (unsigned HOST_WIDE_INT)b;
+  if ((a == -1 && b == HOST_WIDE_INT_MIN)
+      || (a != 0 && (HOST_WIDE_INT)result / a != b))
+    *overflow = true;
+  else
+    *overflow = false;
+  return result;
+#else
+  HOST_WIDE_INT result;
+  *overflow = __builtin_mul_overflow (a, b, &result);
+  return result;
+#endif
+}
+
+#endif /* ! GCC_HWINT_H */