Tedu compiler-rt 8.0.1.

1 files changed, 0 insertions, 327 deletions

diff --git a/lib/libcompiler_rt/fp_lib.h b/lib/libcompiler_rt/fp_lib.h
deleted file mode 100644
index a0e19ab6a8f..00000000000
--- a/lib/libcompiler_rt/fp_lib.h
+++ /dev/null
@@ -1,327 +0,0 @@
-//===-- lib/fp_lib.h - Floating-point utilities -------------------*- C -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is dual licensed under the MIT and the University of Illinois Open
-// Source Licenses. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file is a configuration header for soft-float routines in compiler-rt.
-// This file does not provide any part of the compiler-rt interface, but defines
-// many useful constants and utility routines that are used in the
-// implementation of the soft-float routines in compiler-rt.
-//
-// Assumes that float, double and long double correspond to the IEEE-754
-// binary32, binary64 and binary 128 types, respectively, and that integer
-// endianness matches floating point endianness on the target platform.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef FP_LIB_HEADER
-#define FP_LIB_HEADER
-
-#include <stdint.h>
-#include <stdbool.h>
-#include <limits.h>
-#include "int_lib.h"
-#include "int_math.h"
-
-// x86_64 FreeBSD prior v9.3 define fixed-width types incorrectly in
-// 32-bit mode.
-#if defined(__FreeBSD__) && defined(__i386__)
-# include <sys/param.h>
-# if __FreeBSD_version < 903000  // v9.3
-#  define uint64_t unsigned long long
-#  define int64_t long long
-#  undef UINT64_C
-#  define UINT64_C(c) (c ## ULL)
-# endif
-#endif
-
-#if defined SINGLE_PRECISION
-
-typedef uint32_t rep_t;
-typedef int32_t srep_t;
-typedef float fp_t;
-#define REP_C UINT32_C
-#define significandBits 23
-
-static __inline int rep_clz(rep_t a) {
-    return __builtin_clz(a);
-}
-
-// 32x32 --> 64 bit multiply
-static __inline void wideMultiply(rep_t a, rep_t b, rep_t *hi, rep_t *lo) {
-    const uint64_t product = (uint64_t)a*b;
-    *hi = product >> 32;
-    *lo = product;
-}
-COMPILER_RT_ABI fp_t __addsf3(fp_t a, fp_t b);
-
-#elif defined DOUBLE_PRECISION
-
-typedef uint64_t rep_t;
-typedef int64_t srep_t;
-typedef double fp_t;
-#define REP_C UINT64_C
-#define significandBits 52
-
-static __inline int rep_clz(rep_t a) {
-#if defined __LP64__
-    return __builtin_clzl(a);
-#else
-    if (a & REP_C(0xffffffff00000000))
-        return __builtin_clz(a >> 32);
-    else
-        return 32 + __builtin_clz(a & REP_C(0xffffffff));
-#endif
-}
-
-#define loWord(a) (a & 0xffffffffU)
-#define hiWord(a) (a >> 32)
-
-// 64x64 -> 128 wide multiply for platforms that don't have such an operation;
-// many 64-bit platforms have this operation, but they tend to have hardware
-// floating-point, so we don't bother with a special case for them here.
-static __inline void wideMultiply(rep_t a, rep_t b, rep_t *hi, rep_t *lo) {
-    // Each of the component 32x32 -> 64 products
-    const uint64_t plolo = loWord(a) * loWord(b);
-    const uint64_t plohi = loWord(a) * hiWord(b);
-    const uint64_t philo = hiWord(a) * loWord(b);
-    const uint64_t phihi = hiWord(a) * hiWord(b);
-    // Sum terms that contribute to lo in a way that allows us to get the carry
-    const uint64_t r0 = loWord(plolo);
-    const uint64_t r1 = hiWord(plolo) + loWord(plohi) + loWord(philo);
-    *lo = r0 + (r1 << 32);
-    // Sum terms contributing to hi with the carry from lo
-    *hi = hiWord(plohi) + hiWord(philo) + hiWord(r1) + phihi;
-}
-#undef loWord
-#undef hiWord
-
-COMPILER_RT_ABI fp_t __adddf3(fp_t a, fp_t b);
-
-#elif defined QUAD_PRECISION
-#if __LDBL_MANT_DIG__ == 113
-#define CRT_LDBL_128BIT
-typedef __uint128_t rep_t;
-typedef __int128_t srep_t;
-typedef long double fp_t;
-#define REP_C (__uint128_t)
-// Note: Since there is no explicit way to tell compiler the constant is a
-// 128-bit integer, we let the constant be casted to 128-bit integer
-#define significandBits 112
-
-static __inline int rep_clz(rep_t a) {
-    const union
-        {
-             __uint128_t ll;
-#if _YUGA_BIG_ENDIAN
-             struct { uint64_t high, low; } s;
-#else
-             struct { uint64_t low, high; } s;
-#endif
-        } uu = { .ll = a };
-
-    uint64_t word;
-    uint64_t add;
-
-    if (uu.s.high){
-        word = uu.s.high;
-        add = 0;
-    }
-    else{
-        word = uu.s.low;
-        add = 64;
-    }
-    return __builtin_clzll(word) + add;
-}
-
-#define Word_LoMask   UINT64_C(0x00000000ffffffff)
-#define Word_HiMask   UINT64_C(0xffffffff00000000)
-#define Word_FullMask UINT64_C(0xffffffffffffffff)
-#define Word_1(a) (uint64_t)((a >> 96) & Word_LoMask)
-#define Word_2(a) (uint64_t)((a >> 64) & Word_LoMask)
-#define Word_3(a) (uint64_t)((a >> 32) & Word_LoMask)
-#define Word_4(a) (uint64_t)(a & Word_LoMask)
-
-// 128x128 -> 256 wide multiply for platforms that don't have such an operation;
-// many 64-bit platforms have this operation, but they tend to have hardware
-// floating-point, so we don't bother with a special case for them here.
-static __inline void wideMultiply(rep_t a, rep_t b, rep_t *hi, rep_t *lo) {
-
-    const uint64_t product11 = Word_1(a) * Word_1(b);
-    const uint64_t product12 = Word_1(a) * Word_2(b);
-    const uint64_t product13 = Word_1(a) * Word_3(b);
-    const uint64_t product14 = Word_1(a) * Word_4(b);
-    const uint64_t product21 = Word_2(a) * Word_1(b);
-    const uint64_t product22 = Word_2(a) * Word_2(b);
-    const uint64_t product23 = Word_2(a) * Word_3(b);
-    const uint64_t product24 = Word_2(a) * Word_4(b);
-    const uint64_t product31 = Word_3(a) * Word_1(b);
-    const uint64_t product32 = Word_3(a) * Word_2(b);
-    const uint64_t product33 = Word_3(a) * Word_3(b);
-    const uint64_t product34 = Word_3(a) * Word_4(b);
-    const uint64_t product41 = Word_4(a) * Word_1(b);
-    const uint64_t product42 = Word_4(a) * Word_2(b);
-    const uint64_t product43 = Word_4(a) * Word_3(b);
-    const uint64_t product44 = Word_4(a) * Word_4(b);
-
-    const __uint128_t sum0 = (__uint128_t)product44;
-    const __uint128_t sum1 = (__uint128_t)product34 +
-                             (__uint128_t)product43;
-    const __uint128_t sum2 = (__uint128_t)product24 +
-                             (__uint128_t)product33 +
-                             (__uint128_t)product42;
-    const __uint128_t sum3 = (__uint128_t)product14 +
-                             (__uint128_t)product23 +
-                             (__uint128_t)product32 +
-                             (__uint128_t)product41;
-    const __uint128_t sum4 = (__uint128_t)product13 +
-                             (__uint128_t)product22 +
-                             (__uint128_t)product31;
-    const __uint128_t sum5 = (__uint128_t)product12 +
-                             (__uint128_t)product21;
-    const __uint128_t sum6 = (__uint128_t)product11;
-
-    const __uint128_t r0 = (sum0 & Word_FullMask) +
-                           ((sum1 & Word_LoMask) << 32);
-    const __uint128_t r1 = (sum0 >> 64) +
-                           ((sum1 >> 32) & Word_FullMask) +
-                           (sum2 & Word_FullMask) +
-                           ((sum3 << 32) & Word_HiMask);
-
-    *lo = r0 + (r1 << 64);
-    *hi = (r1 >> 64) +
-          (sum1 >> 96) +
-          (sum2 >> 64) +
-          (sum3 >> 32) +
-          sum4 +
-          (sum5 << 32) +
-          (sum6 << 64);
-}
-#undef Word_1
-#undef Word_2
-#undef Word_3
-#undef Word_4
-#undef Word_HiMask
-#undef Word_LoMask
-#undef Word_FullMask
-#endif // __LDBL_MANT_DIG__ == 113
-#else
-#error SINGLE_PRECISION, DOUBLE_PRECISION or QUAD_PRECISION must be defined.
-#endif
-
-#if defined(SINGLE_PRECISION) || defined(DOUBLE_PRECISION) || defined(CRT_LDBL_128BIT)
-#define typeWidth       (sizeof(rep_t)*CHAR_BIT)
-#define exponentBits    (typeWidth - significandBits - 1)
-#define maxExponent     ((1 << exponentBits) - 1)
-#define exponentBias    (maxExponent >> 1)
-
-#define implicitBit     (REP_C(1) << significandBits)
-#define significandMask (implicitBit - 1U)
-#define signBit         (REP_C(1) << (significandBits + exponentBits))
-#define absMask         (signBit - 1U)
-#define exponentMask    (absMask ^ significandMask)
-#define oneRep          ((rep_t)exponentBias << significandBits)
-#define infRep          exponentMask
-#define quietBit        (implicitBit >> 1)
-#define qnanRep         (exponentMask | quietBit)
-
-static __inline rep_t toRep(fp_t x) {
-    const union { fp_t f; rep_t i; } rep = {.f = x};
-    return rep.i;
-}
-
-static __inline fp_t fromRep(rep_t x) {
-    const union { fp_t f; rep_t i; } rep = {.i = x};
-    return rep.f;
-}
-
-static __inline int normalize(rep_t *significand) {
-    const int shift = rep_clz(*significand) - rep_clz(implicitBit);
-    *significand <<= shift;
-    return 1 - shift;
-}
-
-static __inline void wideLeftShift(rep_t *hi, rep_t *lo, int count) {
-    *hi = *hi << count | *lo >> (typeWidth - count);
-    *lo = *lo << count;
-}
-
-static __inline void wideRightShiftWithSticky(rep_t *hi, rep_t *lo, unsigned int count) {
-    if (count < typeWidth) {
-        const bool sticky = *lo << (typeWidth - count);
-        *lo = *hi << (typeWidth - count) | *lo >> count | sticky;
-        *hi = *hi >> count;
-    }
-    else if (count < 2*typeWidth) {
-        const bool sticky = *hi << (2*typeWidth - count) | *lo;
-        *lo = *hi >> (count - typeWidth) | sticky;
-        *hi = 0;
-    } else {
-        const bool sticky = *hi | *lo;
-        *lo = sticky;
-        *hi = 0;
-    }
-}
-
-// Implements logb methods (logb, logbf, logbl) for IEEE-754. This avoids
-// pulling in a libm dependency from compiler-rt, but is not meant to replace
-// it (i.e. code calling logb() should get the one from libm, not this), hence
-// the __compiler_rt prefix.
-static __inline fp_t __compiler_rt_logbX(fp_t x) {
-  rep_t rep = toRep(x);
-  int exp = (rep & exponentMask) >> significandBits;
-
-  // Abnormal cases:
-  // 1) +/- inf returns +inf; NaN returns NaN
-  // 2) 0.0 returns -inf
-  if (exp == maxExponent) {
-    if (((rep & signBit) == 0) || (x != x)) {
-      return x;  // NaN or +inf: return x
-    } else {
-      return -x;  // -inf: return -x
-    }
-  } else if (x == 0.0) {
-    // 0.0: return -inf
-    return fromRep(infRep | signBit);
-  }
-
-  if (exp != 0) {
-    // Normal number
-    return exp - exponentBias;  // Unbias exponent
-  } else {
-    // Subnormal number; normalize and repeat
-    rep &= absMask;
-    const int shift = 1 - normalize(&rep);
-    exp = (rep & exponentMask) >> significandBits;
-    return exp - exponentBias - shift;  // Unbias exponent
-  }
-}
-#endif
-
-#if defined(SINGLE_PRECISION)
-static __inline fp_t __compiler_rt_logbf(fp_t x) {
-  return __compiler_rt_logbX(x);
-}
-#elif defined(DOUBLE_PRECISION)
-static __inline fp_t __compiler_rt_logb(fp_t x) {
-  return __compiler_rt_logbX(x);
-}
-#elif defined(QUAD_PRECISION)
-  #if defined(CRT_LDBL_128BIT)
-static __inline fp_t __compiler_rt_logbl(fp_t x) {
-  return __compiler_rt_logbX(x);
-}
-  #else
-// The generic implementation only works for ieee754 floating point. For other
-// floating point types, continue to rely on the libm implementation for now.
-static __inline long double __compiler_rt_logbl(long double x) {
-  return crt_logbl(x);
-}
-  #endif
-#endif
-
-#endif // FP_LIB_HEADER