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authorkan <kan@FreeBSD.org>2007-05-19 01:19:51 +0000
committerkan <kan@FreeBSD.org>2007-05-19 01:19:51 +0000
commit1f9ea4d0a40cca64d60cf4dab152349da7b9dddf (patch)
tree0cb530c9c38af219e6dda2994c078b6b2b9ad853 /contrib/gcc/config/floatunsisf.c
parent4895159b2b4f648051c1f139faa7b6dc50c2bfcb (diff)
downloadFreeBSD-src-1f9ea4d0a40cca64d60cf4dab152349da7b9dddf.zip
FreeBSD-src-1f9ea4d0a40cca64d60cf4dab152349da7b9dddf.tar.gz
GCC 4.2.0 release.
Diffstat (limited to 'contrib/gcc/config/floatunsisf.c')
-rw-r--r--contrib/gcc/config/floatunsisf.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/contrib/gcc/config/floatunsisf.c b/contrib/gcc/config/floatunsisf.c
new file mode 100644
index 0000000..11d4aa7
--- /dev/null
+++ b/contrib/gcc/config/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;
+}
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