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| author | Torbjorn Granlund <tege@gmplib.org> | 2009-03-01 23:47:31 +0100 |
|---|---|---|
| committer | Torbjorn Granlund <tege@gmplib.org> | 2009-03-01 23:47:31 +0100 |
| commit | 1f477a4d94b12fc2677fb5ca28503a116c497578 (patch) | |
| tree | 8e54cd2aa2c55b094903ce492818020a93731ea4 | |
| parent | edf7cc21e9c9ea8702a971b50bdde78574f9ac28 (diff) | |
| download | gmp-1f477a4d94b12fc2677fb5ca28503a116c497578.tar.gz | |
(mips, powerpc): Provide assembly-free umul_ppmm for newer gcc.
| -rw-r--r-- | longlong.h | 50 |
1 files changed, 45 insertions, 5 deletions
diff --git a/longlong.h b/longlong.h index 4ae8d3988..1354d7df1 100644 --- a/longlong.h +++ b/longlong.h @@ -1,7 +1,7 @@ /* longlong.h -- definitions for mixed size 32/64 bit arithmetic. Copyright 1991, 1992, 1993, 1994, 1996, 1997, 1999, 2000, 2001, 2002, 2003, -2004, 2005, 2007 Free Software Foundation, Inc. +2004, 2005, 2007, 2008, 2009 Free Software Foundation, Inc. This file is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free @@ -1021,10 +1021,19 @@ extern UWtype __MPN(udiv_qrnnd) _PROTO ((UWtype *, UWtype, UWtype, UWtype)); #endif /* __m88000__ */ #if defined (__mips) && W_TYPE_SIZE == 32 -#if __GNUC__ > 2 || __GNUC_MINOR__ >= 7 +#if __GMP_GNUC_PREREQ (4,4) +#define umul_ppmm(w1, w0, u, v) \ + do { \ + UDItype __ll = (UDItype)(u) * (v); \ + w1 = __ll >> 32; \ + w0 = __ll; \ + } while (0) +#endif +#if !defined (umul_ppmm) && __GMP_GNUC_PREREQ (2,7) #define umul_ppmm(w1, w0, u, v) \ __asm__ ("multu %2,%3" : "=l" (w0), "=h" (w1) : "d" (u), "d" (v)) -#else +#endif +#if !defined (umul_ppmm) #define umul_ppmm(w1, w0, u, v) \ __asm__ ("multu %2,%3\n\tmflo %0\n\tmfhi %1" \ : "=d" (w0), "=d" (w1) : "d" (u), "d" (v)) @@ -1034,10 +1043,20 @@ extern UWtype __MPN(udiv_qrnnd) _PROTO ((UWtype *, UWtype, UWtype, UWtype)); #endif /* __mips */ #if (defined (__mips) && __mips >= 3) && W_TYPE_SIZE == 64 -#if __GNUC__ > 2 || __GNUC_MINOR__ >= 7 +#if __GMP_GNUC_PREREQ (4,4) +#define umul_ppmm(w1, w0, u, v) \ + do { \ + typedef unsigned int __ll_UTItype __attribute__((mode(TI))); \ + __ll_UTItype __ll = (__ll_UTItype)(u) * (v); \ + w1 = __ll >> 64; \ + w0 = __ll; \ + } while (0) +#endif +#if !defined (umul_ppmm) && __GMP_GNUC_PREREQ (2,7) #define umul_ppmm(w1, w0, u, v) \ __asm__ ("dmultu %2,%3" : "=l" (w0), "=h" (w1) : "d" (u), "d" (v)) -#else +#endif +#if !defined (umul_ppmm) #define umul_ppmm(w1, w0, u, v) \ __asm__ ("dmultu %2,%3\n\tmflo %0\n\tmfhi %1" \ : "=d" (w0), "=d" (w1) : "d" (u), "d" (v)) @@ -1140,12 +1159,22 @@ extern UWtype __MPN(udiv_qrnnd) _PROTO ((UWtype *, UWtype, UWtype, UWtype)); __asm__ ("{cntlz|cntlzw} %0,%1" : "=r" (count) : "r" (x)) #define COUNT_LEADING_ZEROS_0 32 #if HAVE_HOST_CPU_FAMILY_powerpc +#if __GMP_GNUC_PREREQ (4,4) +#define umul_ppmm(w1, w0, u, v) \ + do { \ + UDItype __ll = (UDItype)(u) * (v); \ + w1 = __ll >> 32; \ + w0 = __ll; \ + } while (0) +#endif +#if !defined (umul_ppmm) #define umul_ppmm(ph, pl, m0, m1) \ do { \ USItype __m0 = (m0), __m1 = (m1); \ __asm__ ("mulhwu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \ (pl) = __m0 * __m1; \ } while (0) +#endif #define UMUL_TIME 15 #define smul_ppmm(ph, pl, m0, m1) \ do { \ @@ -1229,12 +1258,23 @@ extern UWtype __MPN(udiv_qrnnd) _PROTO ((UWtype *, UWtype, UWtype, UWtype)); #define count_leading_zeros(count, x) \ __asm__ ("cntlzd %0,%1" : "=r" (count) : "r" (x)) #define COUNT_LEADING_ZEROS_0 64 +#if __GMP_GNUC_PREREQ (4,4) +#define umul_ppmm(w1, w0, u, v) \ + do { \ + typedef unsigned int __ll_UTItype __attribute__((mode(TI))); \ + __ll_UTItype __ll = (__ll_UTItype)(u) * (v); \ + w1 = __ll >> 64; \ + w0 = __ll; \ + } while (0) +#endif +#if !defined (umul_ppmm) #define umul_ppmm(ph, pl, m0, m1) \ do { \ UDItype __m0 = (m0), __m1 = (m1); \ __asm__ ("mulhdu %0,%1,%2" : "=r" (ph) : "%r" (m0), "r" (m1)); \ (pl) = __m0 * __m1; \ } while (0) +#endif #define UMUL_TIME 15 #define smul_ppmm(ph, pl, m0, m1) \ do { \ |