diff options
Diffstat (limited to 'arch/microblaze/lib/lshrdi3.c')
-rw-r--r-- | arch/microblaze/lib/lshrdi3.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/microblaze/lib/lshrdi3.c b/arch/microblaze/lib/lshrdi3.c new file mode 100644 index 000000000..00eb82682 --- /dev/null +++ b/arch/microblaze/lib/lshrdi3.c @@ -0,0 +1,29 @@ +// SPDX-License-Identifier: GPL-2.0 +#include <linux/export.h> + +#include "libgcc.h" + +long long __lshrdi3(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 = 0; + w.s.low = (unsigned int) uu.s.high >> -bm; + } else { + const unsigned int carries = (unsigned int) uu.s.high << bm; + + w.s.high = (unsigned int) uu.s.high >> b; + w.s.low = ((unsigned int) uu.s.low >> b) | carries; + } + + return w.ll; +} +EXPORT_SYMBOL(__lshrdi3); |