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| author | Ben Cheng <bccheng@google.com> | 2012-10-01 10:30:31 -0700 |
|---|---|---|
| committer | Ben Cheng <bccheng@google.com> | 2012-10-01 10:30:31 -0700 |
| commit | 82bcbebce43f0227f506d75a5b764b6847041bae (patch) | |
| tree | fe9f8597b48a430c4daeb5123e3e8eb28e6f9da9 /gcc-4.7/libgcc/floatunsisf.c | |
| parent | 3c052de3bb16ac53b6b6ed659ec7557eb84c7590 (diff) | |
| download | toolchain_gcc-82bcbebce43f0227f506d75a5b764b6847041bae.tar.gz toolchain_gcc-82bcbebce43f0227f506d75a5b764b6847041bae.tar.bz2 toolchain_gcc-82bcbebce43f0227f506d75a5b764b6847041bae.zip | |
Initial check-in of gcc 4.7.2.
Change-Id: I4a2f5a921c21741a0e18bda986d77e5f1bef0365
Diffstat (limited to 'gcc-4.7/libgcc/floatunsisf.c')
| -rw-r--r-- | gcc-4.7/libgcc/floatunsisf.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc-4.7/libgcc/floatunsisf.c b/gcc-4.7/libgcc/floatunsisf.c new file mode 100644 index 000000000..11d4aa78c --- /dev/null +++ b/gcc-4.7/libgcc/floatunsisf.c @@ -0,0 +1,18 @@ +/* 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; +} |