MPI: Fix compilation on MIPS with GCC 4.4 and newer

[~andy/linux] / lib / mpi / longlong.h

diff --git a/lib/mpi/longlong.h b/lib/mpi/longlong.h
index 678ce4f1e124b4be4c255f297cef1e29477e7ce0..095ab157a5215a800d01585bbb50b0d6b6a88a17 100644 (file)
--- a/lib/mpi/longlong.h
+++ b/lib/mpi/longlong.h
@@ -641,7 +641,14 @@ do { \
        **************  MIPS  *****************
        ***************************************/
 #if defined(__mips__) && W_TYPE_SIZE == 32
-#if __GNUC__ > 2 || __GNUC_MINOR__ >= 7
+#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 4
+#define umul_ppmm(w1, w0, u, v)                        \
+do {                                           \
+       UDItype __ll = (UDItype)(u) * (v);      \
+       w1 = __ll >> 32;                        \
+       w0 = __ll;                              \
+} while (0)
+#elif __GNUC__ > 2 || __GNUC_MINOR__ >= 7
 #define umul_ppmm(w1, w0, u, v) \
        __asm__ ("multu %2,%3" \
        : "=l" ((USItype)(w0)), \
@@ -666,7 +673,15 @@ do { \
        **************  MIPS/64  **************
        ***************************************/
 #if (defined(__mips) && __mips >= 3) && W_TYPE_SIZE == 64
-#if __GNUC__ > 2 || __GNUC_MINOR__ >= 7
+#if __GNUC__ >= 4 && __GNUC_MINOR__ >= 4
+#define umul_ppmm(w1, w0, u, v) \
+do {                                                                   \
+       typedef unsigned int __ll_UTItype __attribute__((mode(TI)));    \
+       __ll_UTItype __ll = (__ll_UTItype)(u) * (v);                    \
+       w1 = __ll >> 64;                                                \
+       w0 = __ll;                                                      \
+} while (0)
+#elif __GNUC__ > 2 || __GNUC_MINOR__ >= 7
 #define umul_ppmm(w1, w0, u, v) \
        __asm__ ("dmultu %2,%3" \
        : "=l" ((UDItype)(w0)), \