Use a sidetable in ASTContext for ParmVarDecls whose index exceeds the 8 bits reserved for that value in VarDecl. Fixes PR 10538.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141273 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 11 insertions, 0 deletions

diff --git a/lib/AST/ASTContext.cpp b/lib/AST/ASTContext.cpp
index 6f68c2dc2f..055ed7c08c 100644
--- a/lib/AST/ASTContext.cpp
+++ b/lib/AST/ASTContext.cpp
@@ -6516,3 +6516,14 @@ size_t ASTContext::getSideTableAllocatedMemory() const {
     + llvm::capacity_in_bytes(VariableArrayTypes)
     + llvm::capacity_in_bytes(ClassScopeSpecializationPattern);
 }
+
+void ASTContext::setParameterIndex(const ParmVarDecl *D, unsigned int index) {
+  ParamIndices[D] = index;
+}
+
+unsigned ASTContext::getParameterIndex(const ParmVarDecl *D) const {
+  ParameterIndexTable::const_iterator I = ParamIndices.find(D);
+  assert(I != ParamIndices.end() && 
+         "ParmIndices lacks entry set by ParmVarDecl");
+  return I->second;
+}