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5262 libm needs to be carefully unifdef'd
5268 libm doesn't need to hide symbols which are already local
@@ -25,19 +25,17 @@
/*
* Copyright 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
-#if defined(ELFOBJ)
#pragma weak scalblnf = __scalblnf
-#endif
#include "libm.h"
#include <float.h> /* FLT_MAX, FLT_MIN */
static const float twom25f = 2.98023223876953125e-8F;
-#if defined(USE_FPSCALE) || defined(__x86)
+#if defined(__x86)
static const float two23f = 8388608.0F;
#else
/*
* v: a non-zero subnormal |x|; returns [-22, 0]
*/
@@ -52,11 +50,11 @@
if (v & 0xf0)
r += 4, v >>= 4;
v <<= 1;
return (r + ((0xffffaa50 >> v) & 0x3));
}
-#endif /* defined(USE_FPSCALE) */
+#endif /* defined(__x86) */
float
scalblnf(float x, long n) {
int *px = (int *) &x, ix, k;
@@ -69,11 +67,11 @@
return (x + x);
#endif
if (ix == 0 || n == 0)
return (x);
if (k == 0) {
-#if defined(USE_FPSCALE) || defined(__x86)
+#if defined(__x86)
x *= two23f;
k = ((*px & ~0x80000000) >> 23) - 23;
#else
k = ilogbf_biased(ix);
*px = (*px & 0x80000000) | (ix << (-k + 1));