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authorMike Frysinger <vapier@gentoo.org>2005-08-25 23:50:55 +0000
committerMike Frysinger <vapier@gentoo.org>2005-08-25 23:50:55 +0000
commit46b06e9c1c7d57ae0008b3a282110d8ce4345b5f (patch)
tree8bb70d81ee67ecd175ad14778b2513e4496e3b9e /libc/sysdeps/linux/sparc/sparcv9/sdiv.S
parent4147ffbcc6e2c20ab9bc1b43330244abe5a10b63 (diff)
import different optimized versions of div funcs based upon target sparc arch
Diffstat (limited to 'libc/sysdeps/linux/sparc/sparcv9/sdiv.S')
-rw-r--r--libc/sysdeps/linux/sparc/sparcv9/sdiv.S18
1 files changed, 18 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/sparc/sparcv9/sdiv.S b/libc/sysdeps/linux/sparc/sparcv9/sdiv.S
new file mode 100644
index 000000000..45535bb68
--- /dev/null
+++ b/libc/sysdeps/linux/sparc/sparcv9/sdiv.S
@@ -0,0 +1,18 @@
+/*
+ * Sparc v9 has divide.
+ * As divx takes 68 cycles and sdivcc only 36,
+ * we use sdivcc eventhough it is deprecated.
+ */
+
+ .text
+ .align 32
+ENTRY(.div)
+
+ sra %o0, 31, %o2
+ wr %o2, 0, %y
+ sdivcc %o0, %o1, %o0
+ xnor %o0, %g0, %o2
+ retl
+ movvs %icc, %o2, %o0
+
+END(.div)