[libclc] r236648 - Move ldexp soft implementation to a separate file
Jan Vesely
jan.vesely at rutgers.edu
Wed May 6 14:59:29 PDT 2015
Author: jvesely
Date: Wed May 6 16:59:29 2015
New Revision: 236648
URL: http://llvm.org/viewvc/llvm-project?rev=236648&view=rev
Log:
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>
Added:
libclc/trunk/generic/include/math/clc_ldexp.h
libclc/trunk/generic/lib/math/clc_ldexp.cl
- copied, changed from r236647, libclc/trunk/generic/lib/math/ldexp.cl
Modified:
libclc/trunk/generic/lib/SOURCES
libclc/trunk/generic/lib/math/ldexp.cl
Added: libclc/trunk/generic/include/math/clc_ldexp.h
URL: http://llvm.org/viewvc/llvm-project/libclc/trunk/generic/include/math/clc_ldexp.h?rev=236648&view=auto
==============================================================================
--- libclc/trunk/generic/include/math/clc_ldexp.h (added)
+++ libclc/trunk/generic/include/math/clc_ldexp.h Wed May 6 16:59:29 2015
@@ -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
Modified: libclc/trunk/generic/lib/SOURCES
URL: http://llvm.org/viewvc/llvm-project/libclc/trunk/generic/lib/SOURCES?rev=236648&r1=236647&r2=236648&view=diff
==============================================================================
--- libclc/trunk/generic/lib/SOURCES (original)
+++ libclc/trunk/generic/lib/SOURCES Wed May 6 16:59:29 2015
@@ -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
Copied: libclc/trunk/generic/lib/math/clc_ldexp.cl (from r236647, libclc/trunk/generic/lib/math/ldexp.cl)
URL: http://llvm.org/viewvc/llvm-project/libclc/trunk/generic/lib/math/clc_ldexp.cl?p2=libclc/trunk/generic/lib/math/clc_ldexp.cl&p1=libclc/trunk/generic/lib/math/ldexp.cl&r1=236647&r2=236648&rev=236648&view=diff
==============================================================================
--- libclc/trunk/generic/lib/math/ldexp.cl (original)
+++ libclc/trunk/generic/lib/math/clc_ldexp.cl Wed May 6 16:59:29 2015
@@ -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
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(doub
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>
Modified: libclc/trunk/generic/lib/math/ldexp.cl
URL: http://llvm.org/viewvc/llvm-project/libclc/trunk/generic/lib/math/ldexp.cl?rev=236648&r1=236647&r2=236648&view=diff
==============================================================================
--- libclc/trunk/generic/lib/math/ldexp.cl (original)
+++ libclc/trunk/generic/lib/math/ldexp.cl Wed May 6 16:59:29 2015
@@ -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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