Change error to warning when a profile cannot be found.

When the profile for a function cannot be applied, we use to emit an
error. This seems extreme. The compiler can continue, it's just that the
optimization opportunities won't include profile information.

llvm-svn: 220386

1 files changed, 3 insertions, 1 deletions

diff --git a/llvm/lib/Transforms/Scalar/SampleProfile.cpp b/llvm/lib/Transforms/Scalar/SampleProfile.cpp
index 211e5920ec3..0749265d2a8 100644
--- a/llvm/lib/Transforms/Scalar/SampleProfile.cpp
+++ b/llvm/lib/Transforms/Scalar/SampleProfile.cpp
@@ -673,7 +673,9 @@ unsigned SampleProfileLoader::getFunctionLoc(Function &F) {
   // If could not find the start of \p F, emit a diagnostic to inform the user
   // about the missed opportunity.
   F.getContext().diagnose(DiagnosticInfoSampleProfile(
-      "No debug information found in function " + F.getName()));
+      "No debug information found in function " + F.getName() +
+          ": Function profile not used",
+      DS_Warning));
   return 0;
 }