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-rw-r--r--arch/arm/lib/ashldi3.c47
1 files changed, 21 insertions, 26 deletions
diff --git a/arch/arm/lib/ashldi3.c b/arch/arm/lib/ashldi3.c
index 130f5a839669..b62875cfd8f8 100644
--- a/arch/arm/lib/ashldi3.c
+++ b/arch/arm/lib/ashldi3.c
@@ -31,31 +31,26 @@ Boston, MA 02111-1307, USA. */
31 31
32#include "gcclib.h" 32#include "gcclib.h"
33 33
34DItype 34s64 __ashldi3(s64 u, int b)
35__ashldi3 (DItype u, word_type b)
36{ 35{
37 DIunion w; 36 DIunion w;
38 word_type bm; 37 int bm;
39 DIunion uu; 38 DIunion uu;
40 39
41 if (b == 0) 40 if (b == 0)
42 return u; 41 return u;
43 42
44 uu.ll = u; 43 uu.ll = u;
45 44
46 bm = (sizeof (SItype) * BITS_PER_UNIT) - b; 45 bm = (sizeof(s32) * BITS_PER_UNIT) - b;
47 if (bm <= 0) 46 if (bm <= 0) {
48 { 47 w.s.low = 0;
49 w.s.low = 0; 48 w.s.high = (u32) uu.s.low << -bm;
50 w.s.high = (USItype)uu.s.low << -bm; 49 } else {
51 } 50 u32 carries = (u32) uu.s.low >> bm;
52 else 51 w.s.low = (u32) uu.s.low << b;
53 { 52 w.s.high = ((u32) uu.s.high << b) | carries;
54 USItype carries = (USItype)uu.s.low >> bm; 53 }
55 w.s.low = (USItype)uu.s.low << b; 54
56 w.s.high = ((USItype)uu.s.high << b) | carries; 55 return w.ll;
57 }
58
59 return w.ll;
60} 56}
61