[rfc] fix umul_ppmm() in our libgcc

[Adrian Chadd]

Ok, so this:

adrian at lucy-11i386:~/work/freebsd/head-embedded-2/src/contrib/gcc %
svn diff longlong.h
Index: longlong.h
===================================================================
--- longlong.h    (revision 284394)
+++ longlong.h    (working copy)
@@ -584,11 +584,11 @@

 #if defined (__mips__) && W_TYPE_SIZE == 32
 #define umul_ppmm(w1, w0, u, v) \
-  __asm__ ("multu %2,%3"                        \
-       : "=l" ((USItype) (w0)),                    \
-         "=h" ((USItype) (w1))                    \
-       : "d" ((USItype) (u)),                    \
-         "d" ((USItype) (v)))
+    do {                                \
+    UDItype __x = (UDItype) (USItype) (u) * (USItype) (v);        \
+     w1 = __x >> 32;                        \
+     w0 = __x;                            \
+    } while (0)
 #define UMUL_TIME 10
 #define UDIV_TIME 100
 #endif /* __mips__ */


?



-a