Don't print an error message when looking up the scheduling model if user specified -mcpu=help.

llvm-svn: 233884

1 files changed, 4 insertions, 3 deletions

diff --git a/llvm/lib/MC/MCSubtargetInfo.cpp b/llvm/lib/MC/MCSubtargetInfo.cpp
index ca3894b29d3..daba321c58e 100644
--- a/llvm/lib/MC/MCSubtargetInfo.cpp
+++ b/llvm/lib/MC/MCSubtargetInfo.cpp
@@ -93,9 +93,10 @@ MCSubtargetInfo::getSchedModelForCPU(StringRef CPU) const {
   const SubtargetInfoKV *Found =
     std::lower_bound(ProcSchedModels, ProcSchedModels+NumProcs, CPU);
   if (Found == ProcSchedModels+NumProcs || StringRef(Found->Key) != CPU) {
-    errs() << "'" << CPU
-           << "' is not a recognized processor for this target"
-           << " (ignoring processor)\n";
+    if (CPU != "help") // Don't error if the user asked for help.
+      errs() << "'" << CPU
+             << "' is not a recognized processor for this target"
+             << " (ignoring processor)\n";
     return MCSchedModel::GetDefaultSchedModel();
   }
   assert(Found->Value && "Missing processor SchedModel value");