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-rw-r--r--lib/mpi/longlong.h22
1 files changed, 10 insertions, 12 deletions
diff --git a/lib/mpi/longlong.h b/lib/mpi/longlong.h
index 095ab157a521..aac511417ad1 100644
--- a/lib/mpi/longlong.h
+++ b/lib/mpi/longlong.h
@@ -151,15 +151,12 @@ do { \
#endif /* __a29k__ */
#if defined(__alpha) && W_TYPE_SIZE == 64
-#define umul_ppmm(ph, pl, m0, m1) \
-do { \
- UDItype __m0 = (m0), __m1 = (m1); \
- __asm__ ("umulh %r1,%2,%0" \
- : "=r" ((UDItype) ph) \
- : "%rJ" (__m0), \
- "rI" (__m1)); \
- (pl) = __m0 * __m1; \
- } while (0)
+#define umul_ppmm(ph, pl, m0, m1) \
+do { \
+ UDItype __m0 = (m0), __m1 = (m1); \
+ (ph) = __builtin_alpha_umulh(__m0, __m1); \
+ (pl) = __m0 * __m1; \
+} while (0)
#define UMUL_TIME 46
#ifndef LONGLONG_STANDALONE
#define udiv_qrnnd(q, r, n1, n0, d) \
@@ -167,7 +164,7 @@ do { UDItype __r; \
(q) = __udiv_qrnnd(&__r, (n1), (n0), (d)); \
(r) = __r; \
} while (0)
-extern UDItype __udiv_qrnnd();
+extern UDItype __udiv_qrnnd(UDItype *, UDItype, UDItype, UDItype);
#define UDIV_TIME 220
#endif /* LONGLONG_STANDALONE */
#endif /* __alpha */
@@ -318,7 +315,8 @@ extern UDItype __udiv_qrnnd();
"rM" ((USItype)(bh)), \
"rM" ((USItype)(al)), \
"rM" ((USItype)(bl)))
-#if defined(_PA_RISC1_1)
+#if 0 && defined(_PA_RISC1_1)
+/* xmpyu uses floating point register which is not allowed in Linux kernel. */
#define umul_ppmm(wh, wl, u, v) \
do { \
union {UDItype __ll; \
@@ -337,7 +335,7 @@ do { \
#define UMUL_TIME 40
#define UDIV_TIME 80
#endif
-#ifndef LONGLONG_STANDALONE
+#if 0 /* #ifndef LONGLONG_STANDALONE */
#define udiv_qrnnd(q, r, n1, n0, d) \
do { USItype __r; \
(q) = __udiv_qrnnd(&__r, (n1), (n0), (d)); \