[XRay][clang] Add more test cases of -fxray-modes= (NFC)

This confirms expectations for multiple values provided through the
driver when selecting specific modes and the order of appearance of
individual values for the `-fxray-modes=` flag.

This change just adds more test cases to an existing test file.

llvm-svn: 339662

diff --git a/clang/test/Driver/XRay/xray-mode-flags.cpp b/clang/test/Driver/XRay/xray-mode-flags.cpp
index 0a04088..281cf0b 100644 (file)
--- a/clang/test/Driver/XRay/xray-mode-flags.cpp
+++ b/clang/test/Driver/XRay/xray-mode-flags.cpp
@@ -26,6 +26,20 @@
 // RUN: %clang -v -o /dev/null -fxray-instrument -fxray-modes=none,all \
 // RUN:     -### %s \
 // RUN:     2>&1 | FileCheck --check-prefixes FDR,BASIC %s
+//
+// We also should support having the individual modes be concatenated.
+//
+// RUN: %clang -v -o /dev/null -fxray-instrument -fxray-modes=none \
+// RUN:     -fxray-modes=xray-fdr \
+// RUN:     -### %s \
+// RUN:     2>&1 | FileCheck --check-prefixes FDR %s
+//
+// Order also matters.
+//
+// RUN: %clang -v -o /dev/null -fxray-instrument -fxray-modes=xray-fdr \
+// RUN:     -fxray-modes=none \
+// RUN:     -### %s \
+// RUN:     2>&1 | FileCheck --check-prefixes NONE %s
 
 // BASIC: libclang_rt.xray-basic
 // FDR: libclang_rt.xray-fdr