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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /stdlib/longlong.h
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
downloadglibc-a334319f6530564d22e775935d9c91663623a1b4.tar.gz
(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'stdlib/longlong.h')
-rw-r--r--stdlib/longlong.h153
1 files changed, 66 insertions, 87 deletions
diff --git a/stdlib/longlong.h b/stdlib/longlong.h
index ca6285a19b..f89ae27a67 100644
--- a/stdlib/longlong.h
+++ b/stdlib/longlong.h
@@ -1,6 +1,6 @@
/* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
- Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
- 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+ Copyright (C) 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000
+ Free Software Foundation, Inc.
This file is part of the GNU C Library.
@@ -31,7 +31,8 @@
DItype, UDItype -- Signed and unsigned 64 bit types.
On a 32 bit machine UWtype should typically be USItype;
- on a 64 bit machine, UWtype should typically be UDItype. */
+ on a 64 bit machine, UWtype should typically be UDItype.
+*/
#define __BITS4 (W_TYPE_SIZE / 4)
#define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
@@ -45,12 +46,10 @@
#define UDWtype UDItype
#endif
-extern const UQItype __clz_tab[256] attribute_hidden;
-
/* Define auxiliary asm macros.
- 1) umul_ppmm(high_prod, low_prod, multiplier, multiplicand) multiplies two
- UWtype integers MULTIPLIER and MULTIPLICAND, and generates a two UWtype
+ 1) umul_ppmm(high_prod, low_prod, multipler, multiplicand) multiplies two
+ UWtype integers MULTIPLER and MULTIPLICAND, and generates a two UWtype
word product in HIGH_PROD and LOW_PROD.
2) __umulsidi3(a,b) multiplies two UWtype integers A and B, and returns a
@@ -114,7 +113,10 @@ extern const UQItype __clz_tab[256] attribute_hidden;
#define umul_ppmm(ph, pl, m0, m1) \
do { \
UDItype __m0 = (m0), __m1 = (m1); \
- (ph) = __builtin_alpha_umulh (__m0, __m1); \
+ __asm__ ("umulh %r1,%2,%0" \
+ : "=r" ((UDItype) ph) \
+ : "%rJ" (__m0), \
+ "rI" (__m1)); \
(pl) = __m0 * __m1; \
} while (0)
#define UMUL_TIME 46
@@ -128,27 +130,30 @@ extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, UDItype);
#define UDIV_TIME 220
#endif /* LONGLONG_STANDALONE */
#ifdef __alpha_cix__
-#define count_leading_zeros(COUNT,X) ((COUNT) = __builtin_clzl (X))
-#define count_trailing_zeros(COUNT,X) ((COUNT) = __builtin_ctzl (X))
+#define count_leading_zeros(COUNT,X) \
+ __asm__("ctlz %1,%0" : "=r"(COUNT) : "r"(X))
+#define count_trailing_zeros(COUNT,X) \
+ __asm__("cttz %1,%0" : "=r"(COUNT) : "r"(X))
#define COUNT_LEADING_ZEROS_0 64
#else
+extern const UQItype __clz_tab[];
#define count_leading_zeros(COUNT,X) \
do { \
UDItype __xr = (X), __t, __a; \
- __t = __builtin_alpha_cmpbge (0, __xr); \
+ __asm__("cmpbge $31,%1,%0" : "=r"(__t) : "r"(__xr)); \
__a = __clz_tab[__t ^ 0xff] - 1; \
- __t = __builtin_alpha_extbl (__xr, __a); \
+ __asm__("extbl %1,%2,%0" : "=r"(__t) : "r"(__xr), "r"(__a)); \
(COUNT) = 64 - (__clz_tab[__t] + __a*8); \
} while (0)
#define count_trailing_zeros(COUNT,X) \
do { \
UDItype __xr = (X), __t, __a; \
- __t = __builtin_alpha_cmpbge (0, __xr); \
+ __asm__("cmpbge $31,%1,%0" : "=r"(__t) : "r"(__xr)); \
__t = ~__t & -~__t; \
__a = ((__t & 0xCC) != 0) * 2; \
__a += ((__t & 0xF0) != 0) * 4; \
__a += ((__t & 0xAA) != 0); \
- __t = __builtin_alpha_extbl (__xr, __a); \
+ __asm__("extbl %1,%2,%0" : "=r"(__t) : "r"(__xr), "r"(__a)); \
__a <<= 3; \
__t &= -__t; \
__a += ((__t & 0xCC) != 0) * 2; \
@@ -188,7 +193,7 @@ do { \
UDItype __umulsidi3 (USItype, USItype);
#endif
-#if defined (__arm__) && !defined (__thumb__) && W_TYPE_SIZE == 32
+#if defined (__arm__) && W_TYPE_SIZE == 32
#define add_ssaaaa(sh, sl, ah, al, bh, bl) \
__asm__ ("adds %1, %4, %5\n\tadc %0, %2, %3" \
: "=r" ((USItype) (sh)), \
@@ -196,7 +201,7 @@ UDItype __umulsidi3 (USItype, USItype);
: "%r" ((USItype) (ah)), \
"rI" ((USItype) (bh)), \
"%r" ((USItype) (al)), \
- "rI" ((USItype) (bl)) __CLOBBER_CC)
+ "rI" ((USItype) (bl)))
#define sub_ddmmss(sh, sl, ah, al, bh, bl) \
__asm__ ("subs %1, %4, %5\n\tsbc %0, %2, %3" \
: "=r" ((USItype) (sh)), \
@@ -204,7 +209,7 @@ UDItype __umulsidi3 (USItype, USItype);
: "r" ((USItype) (ah)), \
"rI" ((USItype) (bh)), \
"r" ((USItype) (al)), \
- "rI" ((USItype) (bl)) __CLOBBER_CC)
+ "rI" ((USItype) (bl)))
#define umul_ppmm(xh, xl, a, b) \
{register USItype __t0, __t1, __t2; \
__asm__ ("%@ Inlined umul_ppmm\n" \
@@ -224,7 +229,7 @@ UDItype __umulsidi3 (USItype, USItype);
"=r" ((USItype) (xl)), \
"=&r" (__t0), "=&r" (__t1), "=r" (__t2) \
: "r" ((USItype) (a)), \
- "r" ((USItype) (b)) __CLOBBER_CC );}
+ "r" ((USItype) (b)));}
#define UMUL_TIME 20
#define UDIV_TIME 100
#endif /* __arm__ */
@@ -289,27 +294,44 @@ UDItype __umulsidi3 (USItype, USItype);
} while (0)
#endif
-#if (defined (__i370__) || defined (__s390__) || defined (__mvs__)) && W_TYPE_SIZE == 32
+#if (defined (__i370__) || defined (__mvs__)) && W_TYPE_SIZE == 32
+#define umul_ppmm(xh, xl, m0, m1) \
+ do { \
+ union {UDItype __ll; \
+ struct {USItype __h, __l;} __i; \
+ } __xx; \
+ USItype __m0 = (m0), __m1 = (m1); \
+ __asm__ ("mr %0,%3" \
+ : "=r" (__xx.__i.__h), \
+ "=r" (__xx.__i.__l) \
+ : "%1" (__m0), \
+ "r" (__m1)); \
+ (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
+ (xh) += ((((SItype) __m0 >> 31) & __m1) \
+ + (((SItype) __m1 >> 31) & __m0)); \
+ } while (0)
#define smul_ppmm(xh, xl, m0, m1) \
do { \
union {DItype __ll; \
struct {USItype __h, __l;} __i; \
- } __x; \
- __asm__ ("lr %N0,%1\n\tmr %0,%2" \
- : "=&r" (__x.__ll) \
- : "r" (m0), "r" (m1)); \
- (xh) = __x.__i.__h; (xl) = __x.__i.__l; \
+ } __xx; \
+ __asm__ ("mr %0,%3" \
+ : "=r" (__xx.__i.__h), \
+ "=r" (__xx.__i.__l) \
+ : "%1" (m0), \
+ "r" (m1)); \
+ (xh) = __xx.__i.__h; (xl) = __xx.__i.__l; \
} while (0)
#define sdiv_qrnnd(q, r, n1, n0, d) \
do { \
union {DItype __ll; \
struct {USItype __h, __l;} __i; \
- } __x; \
- __x.__i.__h = n1; __x.__i.__l = n0; \
+ } __xx; \
+ __xx.__i.__h = n1; __xx.__i.__l = n0; \
__asm__ ("dr %0,%2" \
- : "=r" (__x.__ll) \
- : "0" (__x.__ll), "r" (d)); \
- (q) = __x.__i.__l; (r) = __x.__i.__h; \
+ : "=r" (__xx.__ll) \
+ : "0" (__xx.__ll), "r" (d)); \
+ (q) = __xx.__i.__l; (r) = __xx.__i.__h; \
} while (0)
#endif
@@ -416,8 +438,11 @@ UDItype __umulsidi3 (USItype, USItype);
"1" ((USItype) (al)), \
"g" ((USItype) (bl)))
-/* The '020, '030, '040, '060 and CPU32 have 32x32->64 and 64/32->32q-32r. */
-#if (defined (__mc68020__) && !defined (__mc68060__))
+/* The '020, '030, '040 and CPU32 have 32x32->64 and 64/32->32q-32r. */
+#if defined (__mc68020__) || defined(mc68020) \
+ || defined(__mc68030__) || defined(mc68030) \
+ || defined(__mc68040__) || defined(mc68040) \
+ || defined(__mcpu32__) || defined(mcpu32)
#define umul_ppmm(w1, w0, u, v) \
__asm__ ("mulu%.l %3,%1:%0" \
: "=d" ((USItype) (w0)), \
@@ -441,43 +466,8 @@ UDItype __umulsidi3 (USItype, USItype);
"1" ((USItype) (n1)), \
"dmi" ((USItype) (d)))
-#elif defined (__mcoldfire__) /* not mc68020 */
-
-#define umul_ppmm(xh, xl, a, b) \
- __asm__ ("| Inlined umul_ppmm\n" \
- " move%.l %2,%/d0\n" \
- " move%.l %3,%/d1\n" \
- " move%.l %/d0,%/d2\n" \
- " swap %/d0\n" \
- " move%.l %/d1,%/d3\n" \
- " swap %/d1\n" \
- " move%.w %/d2,%/d4\n" \
- " mulu %/d3,%/d4\n" \
- " mulu %/d1,%/d2\n" \
- " mulu %/d0,%/d3\n" \
- " mulu %/d0,%/d1\n" \
- " move%.l %/d4,%/d0\n" \
- " clr%.w %/d0\n" \
- " swap %/d0\n" \
- " add%.l %/d0,%/d2\n" \
- " add%.l %/d3,%/d2\n" \
- " jcc 1f\n" \
- " add%.l %#65536,%/d1\n" \
- "1: swap %/d2\n" \
- " moveq %#0,%/d0\n" \
- " move%.w %/d2,%/d0\n" \
- " move%.w %/d4,%/d2\n" \
- " move%.l %/d2,%1\n" \
- " add%.l %/d1,%/d0\n" \
- " move%.l %/d0,%0" \
- : "=g" ((USItype) (xh)), \
- "=g" ((USItype) (xl)) \
- : "g" ((USItype) (a)), \
- "g" ((USItype) (b)) \
- : "d0", "d1", "d2", "d3", "d4")
-#define UMUL_TIME 100
-#define UDIV_TIME 400
-#else /* not ColdFire */
+#else /* not mc68020 */
+#if !defined(__mcf5200__)
/* %/ inserts REGISTER_PREFIX, %# inserts IMMEDIATE_PREFIX. */
#define umul_ppmm(xh, xl, a, b) \
__asm__ ("| Inlined umul_ppmm\n" \
@@ -513,12 +503,14 @@ UDItype __umulsidi3 (USItype, USItype);
: "d0", "d1", "d2", "d3", "d4")
#define UMUL_TIME 100
#define UDIV_TIME 400
-
+#endif /* not mcf5200 */
#endif /* not mc68020 */
-/* The '020, '030, '040 and '060 have bitfield insns.
- cpu32 disguises as a 68020, but lacks them. */
-#if defined (__mc68020__) && !defined (__mcpu32__)
+/* The '020, '030, '040 and '060 have bitfield insns. */
+#if defined (__mc68020__) || defined(mc68020) \
+ || defined(__mc68030__) || defined(mc68030) \
+ || defined(__mc68040__) || defined(mc68040) \
+ || defined(__mc68060__) || defined(mc68060)
#define count_leading_zeros(count, x) \
__asm__ ("bfffo %1{%b2:%b2},%0" \
: "=d" ((USItype) (count)) \
@@ -679,7 +671,7 @@ UDItype __umulsidi3 (USItype, USItype);
__asm__ ("{cntlz|cntlzw} %0,%1" : "=r" (count) : "r" (x))
#define COUNT_LEADING_ZEROS_0 32
#if defined (_ARCH_PPC) || defined (__powerpc__) || defined (__POWERPC__) \
- || defined (__ppc__) || defined (PPC)
+ || defined (__ppc__) || defined (PPC) || defined (__vxworks__)
#define umul_ppmm(ph, pl, m0, m1) \
do { \
USItype __m0 = (m0), __m1 = (m1); \
@@ -1211,20 +1203,6 @@ UDItype __umulsidi3 (USItype, USItype);
} while (0)
#endif
-/* If we lack umul_ppmm but have smul_ppmm, define umul_ppmm in terms of
- smul_ppmm. */
-#if !defined (umul_ppmm) && defined (smul_ppmm)
-#define umul_ppmm(w1, w0, u, v) \
- do { \
- UWtype __w1; \
- UWtype __xm0 = (u), __xm1 = (v); \
- smul_ppmm (__w1, w0, __xm0, __xm1); \
- (w1) = __w1 + (-(__xm0 >> (W_TYPE_SIZE - 1)) & __xm1) \
- + (-(__xm1 >> (W_TYPE_SIZE - 1)) & __xm0); \
- } while (0)
-#endif
-
-/* If we still don't have umul_ppmm, define it using plain C. */
#if !defined (umul_ppmm)
#define umul_ppmm(w1, w0, u, v) \
do { \
@@ -1314,6 +1292,7 @@ UDItype __umulsidi3 (USItype, USItype);
#endif
#if !defined (count_leading_zeros)
+extern const UQItype __clz_tab[];
#define count_leading_zeros(count, x) \
do { \
UWtype __xr = (x); \