--- valgrind/configure 2012-09-12 20:20:29.868427602 +0200 +++ valgrind/configure 2012-09-13 18:28:42.354382238 +0200 @@ -8389,9 +8389,9 @@ do { unsigned int h, l; __asm__ __volatile__( - "andn %2, %1, %0" : "=r" (h) : "r" (0x1234567), "r" (0x7654321) ); } + "andn %2, %1, %0" : "=r" (h) : "r" (0x1234567), "r" (0x7654321) ); __asm__ __volatile__( - "movl %2, %%edx; mulx %3, %1, %0" : "=r" (h), "=r" (l) : "g" (0x1234567), "g" (0x7654321) : "edx" ); } + "movl %2, %%edx; mulx %3, %1, %0" : "=r" (h), "=r" (l) : "g" (0x1234567), "rm" (0x7654321) : "edx" ); } while (0) ; --- valgrind/configure.in 2012-09-13 14:53:45.826948006 +0200 +++ valgrind/configure.in 2012-09-13 18:28:20.725057751 +0200 @@ -1822,9 +1822,9 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[ do { unsigned int h, l; __asm__ __volatile__( - "andn %2, %1, %0" : "=r" (h) : "r" (0x1234567), "r" (0x7654321) ); } + "andn %2, %1, %0" : "=r" (h) : "r" (0x1234567), "r" (0x7654321) ); __asm__ __volatile__( - "movl %2, %%edx; mulx %3, %1, %0" : "=r" (h), "=r" (l) : "g" (0x1234567), "g" (0x7654321) : "edx" ); } + "movl %2, %%edx; mulx %3, %1, %0" : "=r" (h), "=r" (l) : "g" (0x1234567), "rm" (0x7654321) : "edx" ); } while (0) ]])], [ ac_have_as_bmi=yes