[XRay] Check in Clang whether XRay supports the target when -fxray-instrument is passed

Summary:
Added the code which explicitly emits an error in Clang in case
`-fxray-instrument` is passed, but XRay is not supported for the
selected target.

Reviewers: rsmith, aaron.ballman, rnk, dberris

Differential Revision: https://reviews.llvm.org/D24799

llvm-svn: 285266

3 files changed, 10 insertions, 0 deletions

diff --git a/clang/test/Driver/XRay/lit.local.cfg b/clang/test/Driver/XRay/lit.local.cfg
new file mode 100644
index 00000000000..34040d22615
--- /dev/null
+++ b/clang/test/Driver/XRay/lit.local.cfg
@@ -0,0 +1,2 @@
+target_triple_components = config.target_triple.split('-')
+config.available_features.update(target_triple_components)
diff --git a/clang/test/Driver/XRay/xray-instrument-cpu.c b/clang/test/Driver/XRay/xray-instrument-cpu.c
new file mode 100644
index 00000000000..377459aab94
--- /dev/null
+++ b/clang/test/Driver/XRay/xray-instrument-cpu.c
@@ -0,0 +1,4 @@
+// RUN: not %clang -v -fxray-instrument -c %s
+// XFAIL: amd64-, x86_64-, x86_64h-, arm
+// REQUIRES: linux
+typedef int a;
diff --git a/clang/test/Driver/XRay/xray-instrument-os.c b/clang/test/Driver/XRay/xray-instrument-os.c
new file mode 100644
index 00000000000..0802d28d300
--- /dev/null
+++ b/clang/test/Driver/XRay/xray-instrument-os.c
@@ -0,0 +1,4 @@
+// RUN: not %clang -v -fxray-instrument -c %s
+// XFAIL: -linux-
+// REQUIRES-ANY: amd64, x86_64, x86_64h, arm
+typedef int a;