diff options
Diffstat (limited to 'stdlib')
| -rw-r--r-- | stdlib/longlong.h | 57 |
1 files changed, 44 insertions, 13 deletions
diff --git a/stdlib/longlong.h b/stdlib/longlong.h index c4b1b97be0..5f00e548a7 100644 --- a/stdlib/longlong.h +++ b/stdlib/longlong.h @@ -188,16 +188,20 @@ extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, UDItype); "rIJ" ((USItype) (bh)), \ "r" ((USItype) (al)), \ "rIJ" ((USItype) (bl))) -/* Call libgcc routine. */ -#define umul_ppmm(w1, w0, u, v) \ -do { \ - DWunion __w; \ - __w.ll = __umulsidi3 (u, v); \ - w1 = __w.s.high; \ - w0 = __w.s.low; \ -} while (0) -#define __umulsidi3 __umulsidi3 -UDItype __umulsidi3 (USItype, USItype); + +#define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v) +#ifdef __ARC_NORM__ +#define count_leading_zeros(count, x) \ + do \ + { \ + SItype c_; \ + \ + __asm__ ("norm.f\t%0,%1\n\tmov.mi\t%0,-1" : "=r" (c_) : "r" (x) : "cc");\ + (count) = c_ + 1; \ + } \ + while (0) +#define COUNT_LEADING_ZEROS_0 32 +#endif #endif #if defined (__arm__) && (defined (__thumb2__) || !defined (__thumb__)) \ @@ -285,12 +289,39 @@ UDItype __umulsidi3 (USItype, USItype); #endif /* defined (__AVR__) */ -#if defined (__CRIS__) && __CRIS_arch_version >= 3 +#if defined (__CRIS__) + +#if __CRIS_arch_version >= 3 #define count_leading_zeros(COUNT, X) ((COUNT) = __builtin_clz (X)) +#define COUNT_LEADING_ZEROS_0 32 +#endif /* __CRIS_arch_version >= 3 */ + #if __CRIS_arch_version >= 8 #define count_trailing_zeros(COUNT, X) ((COUNT) = __builtin_ctz (X)) -#endif -#endif /* __CRIS__ */ +#endif /* __CRIS_arch_version >= 8 */ + +#if __CRIS_arch_version >= 10 +#define __umulsidi3(u,v) ((UDItype)(USItype) (u) * (UDItype)(USItype) (v)) +#else +#define __umulsidi3 __umulsidi3 +extern UDItype __umulsidi3 (USItype, USItype); +#endif /* __CRIS_arch_version >= 10 */ + +#define umul_ppmm(w1, w0, u, v) \ + do { \ + UDItype __x = __umulsidi3 (u, v); \ + (w0) = (USItype) (__x); \ + (w1) = (USItype) (__x >> 32); \ + } while (0) + +/* FIXME: defining add_ssaaaa and sub_ddmmss should be advantageous for + DFmode ("double" intrinsics, avoiding two of the three insns handling + carry), but defining them as open-code C composing and doing the + operation in DImode (UDImode) shows that the DImode needs work: + register pressure from requiring neighboring registers and the + traffic to and from them come to dominate, in the 4.7 series. */ + +#endif /* defined (__CRIS__) */ #if defined (__hppa) && W_TYPE_SIZE == 32 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \ |