Mercurial > hg > CbC > CbC_gcc
view gcc/config/floatunsisf.c @ 8:5066dc73ff8f
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Thu, 20 Aug 2009 19:10:35 +0900 |
parents | a06113de4d67 |
children |
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/* Public domain. */ typedef int SItype __attribute__ ((mode (SI))); typedef unsigned int USItype __attribute__ ((mode (SI))); typedef float SFtype __attribute__ ((mode (SF))); SFtype __floatunsisf (USItype u) { SItype s = (SItype) u; if (s < 0) { /* As in expand_float, compute (u & 1) | (u >> 1) to ensure correct rounding if a nonzero bit is shifted out. */ return (SFtype) 2.0 * (SFtype) (SItype) ((u & 1) | (u >> 1)); } else return (SFtype) s; }