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edf66e57fc
This patch removes redudant definition from PowerPC specific math_ldbl, using the definitions from ieee754 math_ldbl.h.
37 lines
1.0 KiB
C
37 lines
1.0 KiB
C
#ifndef _MATH_PRIVATE_H_
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#error "Never use <math_ldbl.h> directly; include <math_private.h> instead."
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#endif
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/* GCC does not optimize the default ldbl_pack code to not spill register
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in the stack. The following optimization tells gcc that pack/unpack
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is really a nop. We use fr1/fr2 because those are the regs used to
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pass/return a single long double arg. */
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static inline long double
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ldbl_pack_ppc (double a, double aa)
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{
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register long double x __asm__ ("fr1");
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register double xh __asm__ ("fr1");
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register double xl __asm__ ("fr2");
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xh = a;
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xl = aa;
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__asm__ ("" : "=f" (x) : "f" (xh), "f" (xl));
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return x;
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}
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static inline void
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ldbl_unpack_ppc (long double l, double *a, double *aa)
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{
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register long double x __asm__ ("fr1");
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register double xh __asm__ ("fr1");
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register double xl __asm__ ("fr2");
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x = l;
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__asm__ ("" : "=f" (xh), "=f" (xl) : "f" (x));
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*a = xh;
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*aa = xl;
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}
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#define ldbl_pack ldbl_pack_ppc
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#define ldbl_unpack ldbl_unpack_ppc
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#include <sysdeps/ieee754/ldbl-128ibm/math_ldbl.h>
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