test/Driver/fast-math.c: Mark this as XFAIL:cygming. They use gcc driver for as.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@155691 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Driver/fast-math.c b/test/Driver/fast-math.c
index 40b60cb..09d249d6 100644
--- a/test/Driver/fast-math.c
+++ b/test/Driver/fast-math.c
@@ -4,6 +4,9 @@
// LLVM only supports three switches which is more coarse grained than GCC's
// support.
//
+// Both of them use gcc driver for as.
+// XFAIL: cygwin,mingw32
+//
// RUN: %clang -### -fno-honor-infinities -c %s 2>&1 \
// RUN: | FileCheck --check-prefix=CHECK-NO-INFS %s
// CHECK-NO-INFS: "-cc1"
