Disallow multiple instances of PluginPriority.
Several instances of PluginPriority in a single file most probably signifies a
programming error.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84350 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/LLVMCConfigurationEmitter.cpp b/utils/TableGen/LLVMCConfigurationEmitter.cpp
index 06afaf7..6dfd1b3 100644
--- a/utils/TableGen/LLVMCConfigurationEmitter.cpp
+++ b/utils/TableGen/LLVMCConfigurationEmitter.cpp
@@ -775,11 +775,17 @@
/// CalculatePriority - Calculate the priority of this plugin.
int CalculatePriority(RecordVector::const_iterator B,
RecordVector::const_iterator E) {
- int total = 0;
- for (; B!=E; ++B) {
- total += static_cast<int>((*B)->getValueAsInt("priority"));
+ int priority = 0;
+
+ if (B != E) {
+ priority = static_cast<int>((*B)->getValueAsInt("priority"));
+
+ if (++B != E)
+ throw std::string("More than one 'PluginPriority' instance found: "
+ "most probably an error!");
}
- return total;
+
+ return priority;
}
/// NotInGraph - Helper function object for FilterNotInGraph.