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author | Michal Marek | 2010-12-14 22:01:55 +0100 |
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committer | Michal Marek | 2010-12-14 22:01:55 +0100 |
commit | 8990c1bc4be46473ad19bf2fa612ca57286f3df4 (patch) | |
tree | 3cea60576903a1d26c67e6ec62891b524d390e95 /arch/microblaze/lib/ashrdi3.c | |
parent | headers_install: check exit status of unifdef (diff) | |
parent | Linux 2.6.37-rc1 (diff) | |
download | kernel-qcow2-linux-8990c1bc4be46473ad19bf2fa612ca57286f3df4.tar.gz kernel-qcow2-linux-8990c1bc4be46473ad19bf2fa612ca57286f3df4.tar.xz kernel-qcow2-linux-8990c1bc4be46473ad19bf2fa612ca57286f3df4.zip |
Merge commit 'v2.6.37-rc1' into kbuild/kbuild
Diffstat (limited to 'arch/microblaze/lib/ashrdi3.c')
-rw-r--r-- | arch/microblaze/lib/ashrdi3.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/microblaze/lib/ashrdi3.c b/arch/microblaze/lib/ashrdi3.c new file mode 100644 index 000000000000..c884a912b660 --- /dev/null +++ b/arch/microblaze/lib/ashrdi3.c @@ -0,0 +1,31 @@ +#include <linux/module.h> + +#include "libgcc.h" + +long long __ashrdi3(long long u, word_type b) +{ + DWunion uu, w; + word_type bm; + + if (b == 0) + return u; + + uu.ll = u; + bm = 32 - b; + + if (bm <= 0) { + /* w.s.high = 1..1 or 0..0 */ + w.s.high = + uu.s.high >> 31; + w.s.low = uu.s.high >> -bm; + } else { + const unsigned int carries = (unsigned int) uu.s.high << bm; + + w.s.high = uu.s.high >> b; + w.s.low = ((unsigned int) uu.s.low >> b) | carries; + } + + return w.ll; +} + +EXPORT_SYMBOL(__ashrdi3); |