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Diffstat (limited to 'arch/arm/lib/muldi3.c')
-rw-r--r--arch/arm/lib/muldi3.c31
1 files changed, 13 insertions, 18 deletions
diff --git a/arch/arm/lib/muldi3.c b/arch/arm/lib/muldi3.c
index 44d611b1cfdb..0a3b93313f18 100644
--- a/arch/arm/lib/muldi3.c
+++ b/arch/arm/lib/muldi3.c
@@ -32,7 +32,7 @@ Boston, MA 02111-1307, USA. */
32#include "gcclib.h" 32#include "gcclib.h"
33 33
34#define umul_ppmm(xh, xl, a, b) \ 34#define umul_ppmm(xh, xl, a, b) \
35{register USItype __t0, __t1, __t2; \ 35{register u32 __t0, __t1, __t2; \
36 __asm__ ("%@ Inlined umul_ppmm \n\ 36 __asm__ ("%@ Inlined umul_ppmm \n\
37 mov %2, %5, lsr #16 \n\ 37 mov %2, %5, lsr #16 \n\
38 mov %0, %6, lsr #16 \n\ 38 mov %0, %6, lsr #16 \n\
@@ -46,32 +46,27 @@ Boston, MA 02111-1307, USA. */
46 addcs %0, %0, #65536 \n\ 46 addcs %0, %0, #65536 \n\
47 adds %1, %1, %3, lsl #16 \n\ 47 adds %1, %1, %3, lsl #16 \n\
48 adc %0, %0, %3, lsr #16" \ 48 adc %0, %0, %3, lsr #16" \
49 : "=&r" ((USItype) (xh)), \ 49 : "=&r" ((u32) (xh)), \
50 "=r" ((USItype) (xl)), \ 50 "=r" ((u32) (xl)), \
51 "=&r" (__t0), "=&r" (__t1), "=r" (__t2) \ 51 "=&r" (__t0), "=&r" (__t1), "=r" (__t2) \
52 : "r" ((USItype) (a)), \ 52 : "r" ((u32) (a)), \
53 "r" ((USItype) (b)));} 53 "r" ((u32) (b)));}
54
55 54
56#define __umulsidi3(u, v) \ 55#define __umulsidi3(u, v) \
57 ({DIunion __w; \ 56 ({DIunion __w; \
58 umul_ppmm (__w.s.high, __w.s.low, u, v); \ 57 umul_ppmm (__w.s.high, __w.s.low, u, v); \
59 __w.ll; }) 58 __w.ll; })
60 59
61 60s64 __muldi3(s64 u, s64 v)
62DItype
63__muldi3 (DItype u, DItype v)
64{ 61{
65 DIunion w; 62 DIunion w;
66 DIunion uu, vv; 63 DIunion uu, vv;
67 64
68 uu.ll = u, 65 uu.ll = u, vv.ll = v;
69 vv.ll = v;
70 66
71 w.ll = __umulsidi3 (uu.s.low, vv.s.low); 67 w.ll = __umulsidi3(uu.s.low, vv.s.low);
72 w.s.high += ((USItype) uu.s.low * (USItype) vv.s.high 68 w.s.high += ((u32) uu.s.low * (u32) vv.s.high
73 + (USItype) uu.s.high * (USItype) vv.s.low); 69 + (u32) uu.s.high * (u32) vv.s.low);
74 70
75 return w.ll; 71 return w.ll;
76} 72}
77