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author | Dimitry Andric <dim@FreeBSD.org> | 2015-01-07 19:55:37 +0000 |
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committer | Dimitry Andric <dim@FreeBSD.org> | 2015-01-07 19:55:37 +0000 |
commit | ca9211ecdede9bdedb812b2243a4abdb8dacd1b9 (patch) | |
tree | 9b19e801150082c33e9152275829a6ce90614b55 /lib/builtins/ppc/DD.h | |
parent | 8ef50bf3d1c287b5013c3168de77a462dfce3495 (diff) | |
download | src-ca9211ecdede9bdedb812b2243a4abdb8dacd1b9.tar.gz src-ca9211ecdede9bdedb812b2243a4abdb8dacd1b9.zip |
Import compiler-rt trunk r224034.vendor/compiler-rt/compiler-rt-r224034
Notes
Notes:
svn path=/vendor/compiler-rt/dist/; revision=276789
svn path=/vendor/compiler-rt/compiler-rt-r224034/; revision=276790; tag=vendor/compiler-rt/compiler-rt-r224034
Diffstat (limited to 'lib/builtins/ppc/DD.h')
-rw-r--r-- | lib/builtins/ppc/DD.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/lib/builtins/ppc/DD.h b/lib/builtins/ppc/DD.h new file mode 100644 index 000000000000..fc3e41cbe07e --- /dev/null +++ b/lib/builtins/ppc/DD.h @@ -0,0 +1,46 @@ +#ifndef __DD_HEADER +#define __DD_HEADER + +#include "../int_lib.h" + +typedef union { + long double ld; + struct { + double hi; + double lo; + }s; +}DD; + +typedef union { + double d; + uint64_t x; +} doublebits; + +#define LOWORDER(xy,xHi,xLo,yHi,yLo) \ + (((((xHi)*(yHi) - (xy)) + (xHi)*(yLo)) + (xLo)*(yHi)) + (xLo)*(yLo)) + +static inline double __attribute__((always_inline)) +local_fabs(double x) +{ + doublebits result = { .d = x }; + result.x &= UINT64_C(0x7fffffffffffffff); + return result.d; +} + +static inline double __attribute__((always_inline)) +high26bits(double x) +{ + doublebits result = { .d = x }; + result.x &= UINT64_C(0xfffffffff8000000); + return result.d; +} + +static inline int __attribute__((always_inline)) +different_sign(double x, double y) +{ + doublebits xsignbit = { .d = x }, ysignbit = { .d = y }; + int result = (int)(xsignbit.x >> 63) ^ (int)(ysignbit.x >> 63); + return result; +} + +#endif /* __DD_HEADER */ |