[SemaCXX] _Pragma("clang optimize off") not affecting lambda.

Declaring "_Pragma("clang optimize off")" before the body of a
function with a lambda leads to the lambda functions in the body
not being affected.

Differential Revision: https://reviews.llvm.org/D43821

llvm-svn: 328494

1 files changed, 4 insertions, 0 deletions

diff --git a/clang/lib/Sema/SemaLambda.cpp b/clang/lib/Sema/SemaLambda.cpp
index db8dd1793cf..1b9702f79ac 100644
--- a/clang/lib/Sema/SemaLambda.cpp
+++ b/clang/lib/Sema/SemaLambda.cpp
@@ -904,6 +904,10 @@ void Sema::ActOnStartOfLambdaDefinition(LambdaIntroducer &Intro,
                             ParamInfo.getDeclSpec().isConstexprSpecified());
   if (ExplicitParams)
     CheckCXXDefaultArguments(Method);
+
+  // This represents the function body for the lambda function, check if we
+  // have to apply optnone due to a pragma.
+  AddRangeBasedOptnone(Method);
   
   // Attributes on the lambda apply to the method.  
   ProcessDeclAttributes(CurScope, Method, ParamInfo);