Stack realignment is a tristate. Add -mno-stackrealign to turn off all stack
realignment, even with locals with alignment exceeding the ABI guarantee.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145909 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Driver/stackrealign.c b/test/Driver/stackrealign.c
new file mode 100644
index 0000000..c5221d6
--- /dev/null
+++ b/test/Driver/stackrealign.c
@@ -0,0 +1,12 @@
+// RUN: %clang -### %s 2>&1 | FileCheck %s -check-prefix=NORMAL
+// NORMAL-NOT: -force-align-stack
+// NORMAL: -mstackrealign
+
+// RUN: %clang -### -mstackrealign %s 2>&1 | FileCheck %s -check-prefix=MREALIGN
+// MREALIGN: -force-align-stack
+// MREALIGN: -mstackrealign
+
+// RUN: %clang -### -mno-stackrealign %s 2>&1 | \
+// RUN: FileCheck %s -check-prefix=MNOREALIGN
+// MNOREALIGN-NOT: -force-align-stack
+// MNOREALIGN-NOT: -mstackrealign