C++11 constexpr: Add note stacks containing backtraces if constant evaluation
fails within a call to a constexpr function. Add -fconstexpr-backtrace-limit
argument to driver and frontend, to control the maximum number of notes so
produced (default 10). Fix APValue printing to be able to pretty-print all
APValue types, and move the testing for this functionality from a unittest to
a -verify test now that it's visible in clang's output.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@146749 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaInit.cpp b/lib/Sema/SemaInit.cpp
index a95a257..7dbf830 100644
--- a/lib/Sema/SemaInit.cpp
+++ b/lib/Sema/SemaInit.cpp
@@ -5707,7 +5707,7 @@
? diag::err_init_list_constant_narrowing
: diag::warn_init_list_constant_narrowing)
<< InitE->getSourceRange()
- << ConstantValue
+ << ConstantValue.getAsString(S.getASTContext(), EntityType)
<< EntityType.getLocalUnqualifiedType();
} else
S.Diag(InitE->getLocStart(),