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-rw-r--r--winsup/cygwin/math/lrintl.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/winsup/cygwin/math/lrintl.c b/winsup/cygwin/math/lrintl.c
index 94c4e4924..c25df9226 100644
--- a/winsup/cygwin/math/lrintl.c
+++ b/winsup/cygwin/math/lrintl.c
@@ -8,7 +8,9 @@
long lrintl (long double x)
{
long retval = 0l;
-#if defined(_AMD64_) || defined(__x86_64__) || defined(_X86_) || defined(__i386__)
+#if defined (__x86_64__) && defined (__CYGWIN__)
+ __asm__ __volatile__ ("fistpll %0" : "=m" (retval) : "t" (x) : "st");
+#elif defined(_AMD64_) || defined(__x86_64__) || defined(_X86_) || defined(__i386__)
__asm__ __volatile__ ("fistpl %0" : "=m" (retval) : "t" (x) : "st");
#elif defined(__arm__) || defined(_ARM_)
retval = lrint(x);