[libclc] 258/291: Move ldexp soft implementation to a separate file
Andreas Beckmann
anbe at moszumanska.debian.org
Tue Sep 8 10:53:57 UTC 2015
This is an automated email from the git hooks/post-receive script.
anbe pushed a commit to branch master
in repository libclc.
commit f2a34e6a77bea3cd3f522bcc6f686f2f2efce81b
Author: Jan Vesely <jan.vesely at rutgers.edu>
Date: Wed May 6 21:59:29 2015 +0000
Move ldexp soft implementation to a separate file
Signed-off-by: Jan Vesely <jan.vesely at rutgers.edu>
Reviewed-by: Tom Stellard <thomas.stellard at amd.com>
git-svn-id: https://llvm.org/svn/llvm-project/libclc/trunk@236648 91177308-0d34-0410-b5e6-96231b3b80d8
---
generic/include/math/clc_ldexp.h | 6 ++
generic/lib/SOURCES | 1 +
generic/lib/math/{ldexp.cl => clc_ldexp.cl} | 14 +---
generic/lib/math/ldexp.cl | 103 +---------------------------
4 files changed, 12 insertions(+), 112 deletions(-)
diff --git a/generic/include/math/clc_ldexp.h b/generic/include/math/clc_ldexp.h
new file mode 100644
index 0000000..477dbb2
--- /dev/null
+++ b/generic/include/math/clc_ldexp.h
@@ -0,0 +1,6 @@
+_CLC_DEF _CLC_OVERLOAD float __clc_ldexp(float, int);
+
+#ifdef cl_khr_fp64
+ #pragma OPENCL EXTENSION cl_khr_fp64 : enable
+ _CLC_DEF _CLC_OVERLOAD float __clc_ldexp(double, int);
+#endif
diff --git a/generic/lib/SOURCES b/generic/lib/SOURCES
index 73015d1..1b34da7 100644
--- a/generic/lib/SOURCES
+++ b/generic/lib/SOURCES
@@ -84,6 +84,7 @@ math/fmod.cl
math/fract.cl
math/half_sqrt.cl
math/hypot.cl
+math/clc_ldexp.cl
math/ldexp.cl
math/log10.cl
math/log1p.cl
diff --git a/generic/lib/math/ldexp.cl b/generic/lib/math/clc_ldexp.cl
similarity index 88%
copy from generic/lib/math/ldexp.cl
copy to generic/lib/math/clc_ldexp.cl
index 1802bf3..61e34a5 100644
--- a/generic/lib/math/ldexp.cl
+++ b/generic/lib/math/clc_ldexp.cl
@@ -25,7 +25,7 @@
#include "../clcmacro.h"
#include "math.h"
-_CLC_DEF _CLC_OVERLOAD float ldexp(float x, int n) {
+_CLC_DEF _CLC_OVERLOAD float __clc_ldexp(float x, int n) {
if (!__clc_fp32_subnormals_supported()) {
@@ -92,14 +92,11 @@ _CLC_DEF _CLC_OVERLOAD float ldexp(float x, int n) {
return val_f;
}
-// This defines all the ldexp(floatN, intN) variants.
-_CLC_BINARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, float, ldexp, float, int)
-
#ifdef cl_khr_fp64
#pragma OPENCL EXTENSION cl_khr_fp64 : enable
-_CLC_DEF _CLC_OVERLOAD double ldexp(double x, int n) {
+_CLC_DEF _CLC_OVERLOAD double __clc_ldexp(double x, int n) {
long l = as_ulong(x);
int e = (l >> 52) & 0x7ff;
long s = l & 0x8000000000000000;
@@ -128,11 +125,4 @@ _CLC_DEF _CLC_OVERLOAD double ldexp(double x, int n) {
return mr;
}
-// This defines all the ldexp(doubleN, intN) variants.
-_CLC_BINARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, double, ldexp, double, int)
-
#endif
-
-// This defines all the ldexp(GENTYPE, int) variants
-#define __CLC_BODY <ldexp.inc>
-#include <clc/math/gentype.inc>
diff --git a/generic/lib/math/ldexp.cl b/generic/lib/math/ldexp.cl
index 1802bf3..f247003 100644
--- a/generic/lib/math/ldexp.cl
+++ b/generic/lib/math/ldexp.cl
@@ -24,112 +24,15 @@
#include "config.h"
#include "../clcmacro.h"
#include "math.h"
+#include "math/clc_ldexp.h"
-_CLC_DEF _CLC_OVERLOAD float ldexp(float x, int n) {
-
- if (!__clc_fp32_subnormals_supported()) {
-
- // This treats subnormals as zeros
- int i = as_int(x);
- int e = (i >> 23) & 0xff;
- int m = i & 0x007fffff;
- int s = i & 0x80000000;
- int v = add_sat(e, n);
- v = clamp(v, 0, 0xff);
- int mr = e == 0 | v == 0 | v == 0xff ? 0 : m;
- int c = e == 0xff;
- mr = c ? m : mr;
- int er = c ? e : v;
- er = e ? er : e;
- return as_float( s | (er << 23) | mr );
- }
-
- /* supports denormal values */
- const int multiplier = 24;
- float val_f;
- uint val_ui;
- uint sign;
- int exponent;
- val_ui = as_uint(x);
- sign = val_ui & 0x80000000;
- val_ui = val_ui & 0x7fffffff;/* remove the sign bit */
- int val_x = val_ui;
-
- exponent = val_ui >> 23; /* get the exponent */
- int dexp = exponent;
-
- /* denormal support */
- int fbh = 127 - (as_uint((float)(as_float(val_ui | 0x3f800000) - 1.0f)) >> 23);
- int dexponent = 25 - fbh;
- uint dval_ui = (( (val_ui << fbh) & 0x007fffff) | (dexponent << 23));
- int ex = dexponent + n - multiplier;
- dexponent = ex;
- uint val = sign | (ex << 23) | (dval_ui & 0x007fffff);
- int ex1 = dexponent + multiplier;
- ex1 = -ex1 +25;
- dval_ui = (((dval_ui & 0x007fffff )| 0x800000) >> ex1);
- dval_ui = dexponent > 0 ? val :dval_ui;
- dval_ui = dexponent > 254 ? 0x7f800000 :dval_ui; /*overflow*/
- dval_ui = dexponent < -multiplier ? 0 : dval_ui; /*underflow*/
- dval_ui = dval_ui | sign;
- val_f = as_float(dval_ui);
-
- exponent += n;
-
- val = sign | (exponent << 23) | (val_ui & 0x007fffff);
- ex1 = exponent + multiplier;
- ex1 = -ex1 +25;
- val_ui = (((val_ui & 0x007fffff )| 0x800000) >> ex1);
- val_ui = exponent > 0 ? val :val_ui;
- val_ui = exponent > 254 ? 0x7f800000 :val_ui; /*overflow*/
- val_ui = exponent < -multiplier ? 0 : val_ui; /*underflow*/
- val_ui = val_ui | sign;
-
- val_ui = dexp == 0? dval_ui : val_ui;
- val_f = as_float(val_ui);
-
- val_f = isnan(x) | isinf(x) | val_x == 0 ? x : val_f;
- return val_f;
-}
-
-// This defines all the ldexp(floatN, intN) variants.
-_CLC_BINARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, float, ldexp, float, int)
+_CLC_DEFINE_BINARY_BUILTIN(float, ldexp, __clc_ldexp, float, int)
#ifdef cl_khr_fp64
#pragma OPENCL EXTENSION cl_khr_fp64 : enable
-_CLC_DEF _CLC_OVERLOAD double ldexp(double x, int n) {
- long l = as_ulong(x);
- int e = (l >> 52) & 0x7ff;
- long s = l & 0x8000000000000000;
-
- ulong ux = as_ulong(x * 0x1.0p+53);
- int de = ((int)(ux >> 52) & 0x7ff) - 53;
- int c = e == 0;
- e = c ? de: e;
-
- ux = c ? ux : l;
-
- int v = e + n;
- v = clamp(v, -0x7ff, 0x7ff);
-
- ux &= ~EXPBITS_DP64;
-
- double mr = as_double(ux | ((ulong)(v+53) << 52));
- mr = mr * 0x1.0p-53;
-
- mr = v > 0 ? as_double(ux | ((ulong)v << 52)) : mr;
-
- mr = v == 0x7ff ? as_double(s | PINFBITPATT_DP64) : mr;
- mr = v < -53 ? as_double(s) : mr;
-
- mr = ((n == 0) | isinf(x) | (x == 0) ) ? x : mr;
- return mr;
-}
-
-// This defines all the ldexp(doubleN, intN) variants.
-_CLC_BINARY_VECTORIZE(_CLC_OVERLOAD _CLC_DEF, double, ldexp, double, int)
+_CLC_DEFINE_BINARY_BUILTIN(float, ldexp, __clc_ldexp, float, int)
#endif
--
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