diff options
Diffstat (limited to 'libgcc/libgcc2.c')
| -rw-r--r-- | libgcc/libgcc2.c | 42 |
1 files changed, 39 insertions, 3 deletions
diff --git a/libgcc/libgcc2.c b/libgcc/libgcc2.c index 9fb150b2dd5..97b9237ea2b 100644 --- a/libgcc/libgcc2.c +++ b/libgcc/libgcc2.c @@ -680,7 +680,8 @@ __udiv_w_sdiv (UWtype *rp __attribute__ ((__unused__)), #endif #if (defined (L_udivdi3) || defined (L_divdi3) || \ - defined (L_umoddi3) || defined (L_moddi3)) + defined (L_umoddi3) || defined (L_moddi3) || \ + defined (L_divmoddi4)) #define L_udivmoddi4 #endif @@ -937,7 +938,8 @@ __parityDI2 (UDWtype x) #ifdef TARGET_HAS_NO_HW_DIVIDE #if (defined (L_udivdi3) || defined (L_divdi3) || \ - defined (L_umoddi3) || defined (L_moddi3)) + defined (L_umoddi3) || defined (L_moddi3) || \ + defined (L_divmoddi4)) static inline __attribute__ ((__always_inline__)) #endif UDWtype @@ -1004,7 +1006,8 @@ __udivmoddi4 (UDWtype n, UDWtype d, UDWtype *rp) #else #if (defined (L_udivdi3) || defined (L_divdi3) || \ - defined (L_umoddi3) || defined (L_moddi3)) + defined (L_umoddi3) || defined (L_moddi3) || \ + defined (L_divmoddi4)) static inline __attribute__ ((__always_inline__)) #endif UDWtype @@ -1269,6 +1272,34 @@ __moddi3 (DWtype u, DWtype v) } #endif +#ifdef L_divmoddi4 +DWtype +__divmoddi4 (DWtype u, DWtype v, DWtype *rp) +{ + Wtype c1 = 0, c2 = 0; + DWunion uu = {.ll = u}; + DWunion vv = {.ll = v}; + DWtype w; + DWtype r; + + if (uu.s.high < 0) + c1 = ~c1, c2 = ~c2, + uu.ll = -uu.ll; + if (vv.s.high < 0) + c1 = ~c1, + vv.ll = -vv.ll; + + w = __udivmoddi4 (uu.ll, vv.ll, (UDWtype*)&r); + if (c1) + w = -w; + if (c2) + r = -r; + + *rp = r; + return w; +} +#endif + #ifdef L_umoddi3 UDWtype __umoddi3 (UDWtype u, UDWtype v) @@ -1643,6 +1674,11 @@ FUNC (DWtype u) hi = -(UWtype) hi; UWtype count, shift; +#if !defined (COUNT_LEADING_ZEROS_0) || COUNT_LEADING_ZEROS_0 != W_TYPE_SIZE + if (hi == 0) + count = W_TYPE_SIZE; + else +#endif count_leading_zeros (count, hi); /* No leading bits means u == minimum. */ |