Add -fbracket-depth=N, analogous to -ftemplate-depth= and -fconstexpr-depth=,

to control the check for the C 5.2.4.1 / C++ [implimits] restriction on nesting
levels for parentheses, brackets and braces.

Some code with heavy macro use exceeds the default limit of 256, but we don't
want to increase it generally to avoid stack overflow on stack-constrained
systems.

llvm-svn: 175855

1 files changed, 1 insertions, 1 deletions

diff --git a/clang/lib/Parse/RAIIObjectsForParser.h b/clang/lib/Parse/RAIIObjectsForParser.h
index 060fd206cd7..213950a6db9 100644
--- a/clang/lib/Parse/RAIIObjectsForParser.h
+++ b/clang/lib/Parse/RAIIObjectsForParser.h
@@ -407,7 +407,7 @@ namespace clang {
       if (!P.Tok.is(Kind))
         return true;
       
-      if (getDepth() < MaxDepth) {
+      if (getDepth() < P.getLangOpts().BracketDepth) {
         LOpen = (P.*Consumer)();
         return false;
       }