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Merge ^/head r279893 through r279984.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,50 +1,22 @@ | ||
| //===-- lib/fixdfsi.c - Double-precision -> integer conversion ----*- 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 implements double-precision to integer conversion for the | ||
| // compiler-rt library. No range checking is performed; the behavior of this | ||
| // conversion is undefined for out of range values in the C standard. | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
| /* ===-- fixdfsi.c - Implement __fixdfsi -----------------------------------=== | ||
| * | ||
| * 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. | ||
| * | ||
| * ===----------------------------------------------------------------------=== | ||
| */ | ||
|
|
||
| #define DOUBLE_PRECISION | ||
| #include "fp_lib.h" | ||
|
|
||
| #include "int_lib.h" | ||
| typedef si_int fixint_t; | ||
| typedef su_int fixuint_t; | ||
| #include "fp_fixint_impl.inc" | ||
|
|
||
| ARM_EABI_FNALIAS(d2iz, fixdfsi) | ||
|
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| COMPILER_RT_ABI int | ||
| COMPILER_RT_ABI si_int | ||
| __fixdfsi(fp_t a) { | ||
|
|
||
| // Break a into sign, exponent, significand | ||
| const rep_t aRep = toRep(a); | ||
| const rep_t aAbs = aRep & absMask; | ||
| const int sign = aRep & signBit ? -1 : 1; | ||
| const int exponent = (aAbs >> significandBits) - exponentBias; | ||
| const rep_t significand = (aAbs & significandMask) | implicitBit; | ||
|
|
||
| // If 0 < exponent < significandBits, right shift to get the result. | ||
| if ((unsigned int)exponent < significandBits) { | ||
| return sign * (significand >> (significandBits - exponent)); | ||
| } | ||
|
|
||
| // If exponent is negative, the result is zero. | ||
| else if (exponent < 0) { | ||
| return 0; | ||
| } | ||
|
|
||
| // If significandBits < exponent, left shift to get the result. This shift | ||
| // may end up being larger than the type width, which incurs undefined | ||
| // behavior, but the conversion itself is undefined in that case, so | ||
| // whatever the compiler decides to do is fine. | ||
| else { | ||
| return sign * (significand << (exponent - significandBits)); | ||
| } | ||
| return __fixint(a); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,43 +1,23 @@ | ||
| /* ===-- fixsfdi.c - Implement __fixsfdi -----------------------------------=== | ||
| * | ||
| * The LLVM Compiler Infrastructure | ||
| * 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 implements __fixsfdi for the compiler_rt library. | ||
| * | ||
| * ===----------------------------------------------------------------------=== | ||
| */ | ||
|
|
||
| #include "int_lib.h" | ||
|
|
||
| /* Returns: convert a to a signed long long, rounding toward zero. */ | ||
|
|
||
| /* Assumption: float is a IEEE 32 bit floating point type | ||
| * su_int is a 32 bit integral type | ||
| * value in float is representable in di_int (no range checking performed) | ||
| */ | ||
|
|
||
| /* seee eeee emmm mmmm mmmm mmmm mmmm mmmm */ | ||
| #define SINGLE_PRECISION | ||
| #include "fp_lib.h" | ||
|
|
||
| ARM_EABI_FNALIAS(f2lz, fixsfdi) | ||
|
|
||
| typedef di_int fixint_t; | ||
| typedef du_int fixuint_t; | ||
| #include "fp_fixint_impl.inc" | ||
|
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||
| COMPILER_RT_ABI di_int | ||
| __fixsfdi(float a) | ||
| { | ||
| float_bits fb; | ||
| fb.f = a; | ||
| int e = ((fb.u & 0x7F800000) >> 23) - 127; | ||
| if (e < 0) | ||
| return 0; | ||
| di_int s = (si_int)(fb.u & 0x80000000) >> 31; | ||
| di_int r = (fb.u & 0x007FFFFF) | 0x00800000; | ||
| if (e > 23) | ||
| r <<= (e - 23); | ||
| else | ||
| r >>= (23 - e); | ||
| return (r ^ s) - s; | ||
| __fixsfdi(fp_t a) { | ||
| return __fixint(a); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,47 +1,22 @@ | ||
| //===-- lib/fixsfsi.c - Single-precision -> integer conversion ----*- 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 implements single-precision to integer conversion for the | ||
| // compiler-rt library. No range checking is performed; the behavior of this | ||
| // conversion is undefined for out of range values in the C standard. | ||
| // | ||
| //===----------------------------------------------------------------------===// | ||
| /* ===-- fixsfsi.c - Implement __fixsfsi -----------------------------------=== | ||
| * | ||
| * 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. | ||
| * | ||
| * ===----------------------------------------------------------------------=== | ||
| */ | ||
|
|
||
| #define SINGLE_PRECISION | ||
| #include "fp_lib.h" | ||
| typedef si_int fixint_t; | ||
| typedef su_int fixuint_t; | ||
| #include "fp_fixint_impl.inc" | ||
|
|
||
| ARM_EABI_FNALIAS(f2iz, fixsfsi) | ||
|
|
||
| COMPILER_RT_ABI int | ||
| COMPILER_RT_ABI si_int | ||
| __fixsfsi(fp_t a) { | ||
| // Break a into sign, exponent, significand | ||
| const rep_t aRep = toRep(a); | ||
| const rep_t aAbs = aRep & absMask; | ||
| const int sign = aRep & signBit ? -1 : 1; | ||
| const int exponent = (aAbs >> significandBits) - exponentBias; | ||
| const rep_t significand = (aAbs & significandMask) | implicitBit; | ||
|
|
||
| // If 0 < exponent < significandBits, right shift to get the result. | ||
| if ((unsigned int)exponent < significandBits) { | ||
| return sign * (significand >> (significandBits - exponent)); | ||
| } | ||
|
|
||
| // If exponent is negative, the result is zero. | ||
| else if (exponent < 0) { | ||
| return 0; | ||
| } | ||
|
|
||
| // If significandBits < exponent, left shift to get the result. This shift | ||
| // may end up being larger than the type width, which incurs undefined | ||
| // behavior, but the conversion itself is undefined in that case, so | ||
| // whatever the compiler decides to do is fine. | ||
| else { | ||
| return sign * (significand << (exponent - significandBits)); | ||
| } | ||
| return __fixint(a); | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| /* ===-- fixtfdi.c - Implement __fixtfdi -----------------------------------=== | ||
| * | ||
| * 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. | ||
| * | ||
| * ===----------------------------------------------------------------------=== | ||
| */ | ||
|
|
||
| #define QUAD_PRECISION | ||
| #include "fp_lib.h" | ||
|
|
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| #if defined(CRT_HAS_128BIT) && defined(CRT_LDBL_128BIT) | ||
| typedef di_int fixint_t; | ||
| typedef du_int fixuint_t; | ||
| #include "fp_fixint_impl.inc" | ||
|
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| COMPILER_RT_ABI di_int | ||
| __fixtfdi(fp_t a) { | ||
| return __fixint(a); | ||
| } | ||
| #endif |
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