[llvm-cov] Hide instantiation views for unexecuted functions

Copying in the full text of the function doesn't help at all when we
already know that it's never executed. Just say that it's unexecuted --
the relevant source text has already been printed.

llvm-svn: 281589

1 files changed, 6 insertions, 1 deletions

diff --git a/llvm/tools/llvm-cov/SourceCoverageViewText.cpp b/llvm/tools/llvm-cov/SourceCoverageViewText.cpp
index 51c6463db30..f5201d9c808 100644
--- a/llvm/tools/llvm-cov/SourceCoverageViewText.cpp
+++ b/llvm/tools/llvm-cov/SourceCoverageViewText.cpp
@@ -215,7 +215,12 @@ void SourceCoverageViewText::renderInstantiationView(raw_ostream &OS,
                                                      unsigned ViewDepth) {
   renderLinePrefix(OS, ViewDepth);
   OS << ' ';
-  ISV.View->print(OS, /*WholeFile=*/false, /*ShowSourceName=*/true, ViewDepth);
+  if (!ISV.View)
+    getOptions().colored_ostream(OS, raw_ostream::RED)
+        << "Unexecuted instantiation: " << ISV.FunctionName << "\n";
+  else
+    ISV.View->print(OS, /*WholeFile=*/false, /*ShowSourceName=*/true,
+                    ViewDepth);
 }
 
 void SourceCoverageViewText::renderTitle(raw_ostream &OS, StringRef Title) {