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