Constant expression evaluation refactoring:
- Remodel Expr::EvaluateAsInt to behave like the other EvaluateAs* functions,
and add Expr::EvaluateKnownConstInt to capture the current fold-or-assert
behaviour.
- Factor out evaluation of bitfield bit widths.
- Fix a few places which would evaluate an expression twice: once to determine
whether it is a constant expression, then again to get the value.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141561 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/ItaniumMangle.cpp b/lib/AST/ItaniumMangle.cpp
index 41cfa6a..2b93250 100644
--- a/lib/AST/ItaniumMangle.cpp
+++ b/lib/AST/ItaniumMangle.cpp
@@ -2416,7 +2416,8 @@
QualType T = (ImplicitlyConvertedToType.isNull() ||
!ImplicitlyConvertedToType->isIntegerType())? SAE->getType()
: ImplicitlyConvertedToType;
- mangleIntegerLiteral(T, SAE->EvaluateAsInt(Context.getASTContext()));
+ llvm::APSInt V = SAE->EvaluateKnownConstInt(Context.getASTContext());
+ mangleIntegerLiteral(T, V);
break;
}