X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=include%2Flonglong.h;h=1f0ce4204255945d2c19ba73c0a4910d10145a93;hb=99a5596592eda72c5c60b45cdfabb47e426132d5;hp=d7ef671226cd6f545c2fd3ede22b693cd213c934;hpb=f4936735c5ed55abd37062791f60ba2754c89c31;p=deliverable%2Fbinutils-gdb.git

diff --git a/include/longlong.h b/include/longlong.h
index d7ef671226..1f0ce42042 100644
--- a/include/longlong.h
+++ b/include/longlong.h
@@ -1,5 +1,5 @@
 /* longlong.h -- definitions for mixed size 32/64 bit arithmetic.
-   Copyright (C) 1991-2015 Free Software Foundation, Inc.
+   Copyright (C) 1991-2019 Free Software Foundation, Inc.
 
    This file is part of the GNU C Library.
 
@@ -197,17 +197,19 @@ extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, UDItype);
 	   : "=r" ((USItype) (sh)),					\
 	     "=&r" ((USItype) (sl))					\
 	   : "%r" ((USItype) (ah)),					\
-	     "rIJ" ((USItype) (bh)),					\
+	     "rICal" ((USItype) (bh)),					\
 	     "%r" ((USItype) (al)),					\
-	     "rIJ" ((USItype) (bl)))
+	     "rICal" ((USItype) (bl))					\
+	   : "cc")
 #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
   __asm__ ("sub.f	%1, %4, %5\n\tsbc	%0, %2, %3"		\
 	   : "=r" ((USItype) (sh)),					\
 	     "=&r" ((USItype) (sl))					\
 	   : "r" ((USItype) (ah)),					\
-	     "rIJ" ((USItype) (bh)),					\
+	     "rICal" ((USItype) (bh)),					\
 	     "r" ((USItype) (al)),					\
-	     "rIJ" ((USItype) (bl)))
+	     "rICal" ((USItype) (bl))					\
+	   : "cc")
 
 #define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v)
 #ifdef __ARC_NORM__
@@ -221,8 +223,8 @@ extern UDItype __udiv_qrnnd (UDItype *, UDItype, UDItype, UDItype);
     }									\
   while (0)
 #define COUNT_LEADING_ZEROS_0 32
-#endif
-#endif
+#endif /* __ARC_NORM__ */
+#endif /* __arc__ */
 
 #if defined (__arm__) && (defined (__thumb2__) || !defined (__thumb__)) \
  && W_TYPE_SIZE == 32
@@ -858,42 +860,6 @@ extern UDItype __umulsidi3 (USItype, USItype);
 #endif
 #endif /* __mips__ */
 
-#if defined (__ns32000__) && W_TYPE_SIZE == 32
-#define umul_ppmm(w1, w0, u, v) \
-  ({union {UDItype __ll;						\
-	   struct {USItype __l, __h;} __i;				\
-	  } __xx;							\
-  __asm__ ("meid %2,%0"							\
-	   : "=g" (__xx.__ll)						\
-	   : "%0" ((USItype) (u)),					\
-	     "g" ((USItype) (v)));					\
-  (w1) = __xx.__i.__h; (w0) = __xx.__i.__l;})
-#define __umulsidi3(u, v) \
-  ({UDItype __w;							\
-    __asm__ ("meid %2,%0"						\
-	     : "=g" (__w)						\
-	     : "%0" ((USItype) (u)),					\
-	       "g" ((USItype) (v)));					\
-    __w; })
-#define udiv_qrnnd(q, r, n1, n0, d) \
-  ({union {UDItype __ll;						\
-	   struct {USItype __l, __h;} __i;				\
-	  } __xx;							\
-  __xx.__i.__h = (n1); __xx.__i.__l = (n0);				\
-  __asm__ ("deid %2,%0"							\
-	   : "=g" (__xx.__ll)						\
-	   : "0" (__xx.__ll),						\
-	     "g" ((USItype) (d)));					\
-  (r) = __xx.__i.__l; (q) = __xx.__i.__h; })
-#define count_trailing_zeros(count,x) \
-  do {									\
-    __asm__ ("ffsd     %2,%0"						\
-	    : "=r" ((USItype) (count))					\
-	    : "0" ((USItype) 0),					\
-	      "r" ((USItype) (x)));					\
-  } while (0)
-#endif /* __ns32000__ */
-
 /* FIXME: We should test _IBMR2 here when we add assembly support for the
    system vendor compilers.
    FIXME: What's needed for gcc PowerPC VxWorks?  __vxworks__ is not good
@@ -1086,7 +1052,57 @@ extern UDItype __umulsidi3 (USItype, USItype);
   } while (0)
 #endif
 
-#if defined(__sh__) && !__SHMEDIA__ && W_TYPE_SIZE == 32
+#if defined(__riscv)
+#ifdef __riscv_mul
+#define __umulsidi3(u,v) ((UDWtype)(UWtype)(u) * (UWtype)(v))
+#define __muluw3(a, b) ((UWtype)(a) * (UWtype)(b))
+#else
+#if __riscv_xlen == 32
+  #define MULUW3 "call __mulsi3"
+#elif __riscv_xlen == 64
+  #define MULUW3 "call __muldi3"
+#else
+#error unsupport xlen
+#endif /* __riscv_xlen */
+/* We rely on the fact that MULUW3 doesn't clobber the t-registers.
+   It can get better register allocation result.  */
+#define __muluw3(a, b) \
+  ({ \
+    register UWtype __op0 asm ("a0") = a; \
+    register UWtype __op1 asm ("a1") = b; \
+    asm volatile (MULUW3 \
+                  : "+r" (__op0), "+r" (__op1) \
+                  : \
+                  : "ra", "a2", "a3"); \
+    __op0; \
+  })
+#endif /* __riscv_mul */
+#define umul_ppmm(w1, w0, u, v) \
+  do { \
+    UWtype __x0, __x1, __x2, __x3; \
+    UHWtype __ul, __vl, __uh, __vh; \
+ \
+    __ul = __ll_lowpart (u); \
+    __uh = __ll_highpart (u); \
+    __vl = __ll_lowpart (v); \
+    __vh = __ll_highpart (v); \
+ \
+    __x0 = __muluw3 (__ul, __vl); \
+    __x1 = __muluw3 (__ul, __vh); \
+    __x2 = __muluw3 (__uh, __vl); \
+    __x3 = __muluw3 (__uh, __vh); \
+ \
+    __x1 += __ll_highpart (__x0);/* this can't give carry */ \
+    __x1 += __x2; /* but this indeed can */ \
+    if (__x1 < __x2) /* did we get it? */ \
+      __x3 += __ll_B; /* yes, add it in the proper pos.  */ \
+ \
+    (w1) = __x3 + __ll_highpart (__x1); \
+    (w0) = __ll_lowpart (__x1) * __ll_B + __ll_lowpart (__x0); \
+  } while (0)
+#endif /* __riscv */
+
+#if defined(__sh__) && W_TYPE_SIZE == 32
 #ifndef __sh1__
 #define umul_ppmm(w1, w0, u, v) \
   __asm__ (								\
@@ -1159,21 +1175,6 @@ extern UDItype __umulsidi3 (USItype, USItype);
 
 #endif /* __sh__ */
 
-#if defined (__SH5__) && __SHMEDIA__ && W_TYPE_SIZE == 32
-#define __umulsidi3(u,v) ((UDItype)(USItype)u*(USItype)v)
-#define count_leading_zeros(count, x) \
-  do									\
-    {									\
-      UDItype x_ = (USItype)(x);					\
-      SItype c_;							\
-									\
-      __asm__ ("nsb %1, %0" : "=r" (c_) : "r" (x_));			\
-      (count) = c_ - 31;						\
-    }									\
-  while (0)
-#define COUNT_LEADING_ZEROS_0 32
-#endif
-
 #if defined (__sparc__) && !defined (__arch64__) && !defined (__sparcv9) \
     && W_TYPE_SIZE == 32
 #define add_ssaaaa(sh, sl, ah, al, bh, bl) \