From: Douglas Gregor <dgregor@apple.com>
Date: Mon, 2 Jul 2012 19:56:23 +0000 (+0000)
Subject: Reduce default template instantiation depth to 512; we're blowing out
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=8f4783c6a5ae1e95aeb58b41da9707310e60ab5b;p=clang

Reduce default template instantiation depth to 512; we're blowing out
the stack too often with 1024. Fixes <rdar://problem/11678534>.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@159573 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/Basic/LangOptions.def b/include/clang/Basic/LangOptions.def
index b525e43e06..381b1ba2f0 100644
--- a/include/clang/Basic/LangOptions.def
+++ b/include/clang/Basic/LangOptions.def
@@ -149,7 +149,7 @@ ENUM_LANGOPT(StackProtector, StackProtectorMode, 2, SSPOff,
 ENUM_LANGOPT(SignedOverflowBehavior, SignedOverflowBehaviorTy, 2, SOB_Undefined,
              "signed integer overflow handling")
 
-BENIGN_LANGOPT(InstantiationDepth, 32, 1024, 
+BENIGN_LANGOPT(InstantiationDepth, 32, 512, 
                "maximum template instantiation depth")
 BENIGN_LANGOPT(ConstexprCallDepth, 32, 512,
                "maximum constexpr call depth")
diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp
index 391c2d27a8..943cb20e2d 100644
--- a/lib/Frontend/CompilerInvocation.cpp
+++ b/lib/Frontend/CompilerInvocation.cpp
@@ -2026,7 +2026,7 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
   Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
   Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
   Opts.MathErrno = Args.hasArg(OPT_fmath_errno);
-  Opts.InstantiationDepth = Args.getLastArgIntValue(OPT_ftemplate_depth, 1024,
+  Opts.InstantiationDepth = Args.getLastArgIntValue(OPT_ftemplate_depth, 512,
                                                     Diags);
   Opts.ConstexprCallDepth = Args.getLastArgIntValue(OPT_fconstexpr_depth, 512,
                                                     Diags);