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Merge "Use builtins for fma/fmax/fmin/round on arm/arm64."

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This commit is contained in:
Elliott Hughes 2017-11-09 16:55:53 +00:00 committed by Gerrit Code Review
commit d62d61de30
4 changed files with 34 additions and 31 deletions
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21
libm/Android.bp
View file

@ -211,7 +211,7 @@ cc_library {
"fake_long_double.c",
// Home-grown stuff.
"fabs.cpp",
"builtins.cpp",
"signbit.cpp",
],
@ -291,6 +291,14 @@ cc_library {
"upstream-freebsd/lib/msun/src/e_sqrt.c",
"upstream-freebsd/lib/msun/src/e_sqrtf.c",
"upstream-freebsd/lib/msun/src/s_floor.c",
"upstream-freebsd/lib/msun/src/s_fma.c",
"upstream-freebsd/lib/msun/src/s_fmaf.c",
"upstream-freebsd/lib/msun/src/s_fmax.c",
"upstream-freebsd/lib/msun/src/s_fmaxf.c",
"upstream-freebsd/lib/msun/src/s_fmin.c",
"upstream-freebsd/lib/msun/src/s_fminf.c",
"upstream-freebsd/lib/msun/src/s_round.c",
"upstream-freebsd/lib/msun/src/s_roundf.c",
],
},
instruction_set: "arm",
@ -302,7 +310,6 @@ cc_library {
srcs: [
"arm64/ceil.S",
"arm64/fenv.c",
"arm64/fma.S",
"arm64/floor.S",
"arm64/lrint.S",
"arm64/rint.S",
@ -314,16 +321,22 @@ cc_library {
"upstream-freebsd/lib/msun/src/e_sqrtf.c",
"upstream-freebsd/lib/msun/src/s_ceil.c",
"upstream-freebsd/lib/msun/src/s_ceilf.c",
"upstream-freebsd/lib/msun/src/s_fma.c",
"upstream-freebsd/lib/msun/src/s_fmaf.c",
"upstream-freebsd/lib/msun/src/s_floor.c",
"upstream-freebsd/lib/msun/src/s_floorf.c",
"upstream-freebsd/lib/msun/src/s_fma.c",
"upstream-freebsd/lib/msun/src/s_fmaf.c",
"upstream-freebsd/lib/msun/src/s_fmax.c",
"upstream-freebsd/lib/msun/src/s_fmaxf.c",
"upstream-freebsd/lib/msun/src/s_fmin.c",
"upstream-freebsd/lib/msun/src/s_fminf.c",
"upstream-freebsd/lib/msun/src/s_llrint.c",
"upstream-freebsd/lib/msun/src/s_llrintf.c",
"upstream-freebsd/lib/msun/src/s_lrint.c",
"upstream-freebsd/lib/msun/src/s_lrintf.c",
"upstream-freebsd/lib/msun/src/s_rint.c",
"upstream-freebsd/lib/msun/src/s_rintf.c",
"upstream-freebsd/lib/msun/src/s_round.c",
"upstream-freebsd/lib/msun/src/s_roundf.c",
"upstream-freebsd/lib/msun/src/s_trunc.c",
"upstream-freebsd/lib/msun/src/s_truncf.c",
],

27
libm/arm64/fma.S
View file

@ -1,27 +0,0 @@
/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <private/bionic_asm.h>
ENTRY(fma)
fmadd d0, d0, d1, d2
ret
END(fma)
ENTRY(fmaf)
fmadd s0, s0, s1, s2
ret
END(fmaf)

14
libm/fabs.cpp → libm/builtins.cpp
View file

@ -44,3 +44,17 @@ long double fabsl(long double x) {
return fabs(x);
}
#endif
#if defined(__arm__) || defined(__aarch64__)
float fmaf(float x, float y, float z) { return __builtin_fmaf(x, y, z); }
double fma(double x, double y, double z) { return __builtin_fma(x, y, z); }
float fmaxf(float x, float y) { return __builtin_fmaxf(x, y); }
double fmax(double x, double y) { return __builtin_fmax(x, y); }
float fminf(float x, float y) { return __builtin_fminf(x, y); }
double fmin(double x, double y) { return __builtin_fmin(x, y); }
float roundf(float x) { return __builtin_roundf(x); }
double round(double x) { return __builtin_round(x); }
#endif

3
libm/fake_long_double.c
View file

@ -24,6 +24,9 @@
// that call the regular "double" function.
long double copysignl(long double a1, long double a2) { return copysign(a1, a2); }
#if defined(__arm__) // See builtins.cpp.
long double fmal(long double a1, long double a2, long double a3) { return fma(a1, a2, a3); }
#endif
long double fmaxl(long double a1, long double a2) { return fmax(a1, a2); }
long double fmodl(long double a1, long double a2) { return fmod(a1, a2); }
long double fminl(long double a1, long double a2) { return fmin(a1, a2); }