ScoPDetection: Obtain a known free diagnostic ID

... instead of hardcoding something that has been free at some point. This fixes
a crash triggered by r265084, where the diagnostic IDs have been shifted in a
way that resulted our hardcode ID to not be assigned any implementation.  Our ID
was likely already wrong earlier on, but this time we really crashed nicely.

llvm-svn: 265114

diff --git a/polly/lib/Analysis/ScopDetection.cpp b/polly/lib/Analysis/ScopDetection.cpp
index 7810b94..594d656 100644 (file)
--- a/polly/lib/Analysis/ScopDetection.cpp
+++ b/polly/lib/Analysis/ScopDetection.cpp
@@ -216,7 +216,8 @@ public:
   }
 };
 
-int DiagnosticScopFound::PluginDiagnosticKind = 10;
+int DiagnosticScopFound::PluginDiagnosticKind =
+    getNextAvailablePluginDiagnosticKind();
 
 void DiagnosticScopFound::print(DiagnosticPrinter &DP) const {
   DP << "Polly detected an optimizable loop region (scop) in function '" << F