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- $OpenBSD: patch-src_arisparc64_d,v 1.1 2010/09/23 13:42:22 joshe Exp $
- Disable the assembler loops, at least one of them is broken.
- Remove a couple of potentially-broken math functions to make sure they
- aren't used in case the maze of #ifdefs in arilev0.d ever changes.
- --- src/arisparc64.d.orig Wed Dec 5 08:06:32 2007
- +++ src/arisparc64.d Sun Sep 19 16:25:17 2010
- @@ -14,6 +14,7 @@
-
- #ifdef INCLUDED_FROM_C
-
- +#if 0
- #define COPY_LOOPS
- #define FILL_LOOPS
- #define CLEAR_LOOPS
- @@ -23,6 +24,7 @@
- #define SHIFT_LOOPS
- #define MUL_LOOPS
- #define DIV_LOOPS
- +#endif
-
- #else
-
- @@ -73,30 +75,12 @@ C(mulu16_:) # Input in %o0,%o1, Output in %o0
- retl
- _ srl %o2,0,%o0
-
- -# extern struct { uint32 lo; uint32 hi; } mulu32_ (uint32 arg1, uint32 arg2);
- -# 2^32*hi+lo := arg1*arg2.
- -C(mulu32_:) # Input in %o0,%o1, Output in %o0,%g1
- - umul %o0,%o1,%o2
- - rd %y,%g1
- - retl
- - _ srl %o2,0,%o0
- -
- # extern uint32 mulu32_unchecked (uint32 x, uint32 y);
- # result := arg1*arg2 < 2^32.
- C(mulu32_unchecked:) # Input in %o0,%o1, Output in %o0
- umul %o0,%o1,%o2
- retl
- _ srl %o2,0,%o0
- -
- -# extern struct { uint32 q; uint32 r; } divu_6432_3232_ (uint32 xhi, uint32 xlo, uint32 y);
- -# x = 2^32*xhi+xlo = q*y+r schreiben. Sei bekannt, dass 0 <= x < 2^32*y .
- -C(divu_6432_3232_:) # Input in %o0,%o1,%o2, Output in %o0,%g1
- - wr %o0,%g0,%y
- - udiv %o1,%o2,%o0 # x durch y dividieren, %o0 := q
- - umul %o0,%o2,%g1 # %g1 := (q*y) mod 2^32
- - sub %o1,%g1,%g1 # %g1 := (xlo-q*y) mod 2^32 = r
- - retl
- - _ srl %o0,0,%o0
-
- # extern struct { uint16 q; uint16 r; } divu_3216_1616_ (uint32 x, uint16 y);
- # x = q*y+r schreiben. Sei bekannt, dass 0 <= x < 2^16*y .
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