diff options
Diffstat (limited to 'clang/lib/CodeGen/CodeGenFunction.cpp')
| -rw-r--r-- | clang/lib/CodeGen/CodeGenFunction.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/clang/lib/CodeGen/CodeGenFunction.cpp b/clang/lib/CodeGen/CodeGenFunction.cpp index 1d3ad9b..b5812c8 100644 --- a/clang/lib/CodeGen/CodeGenFunction.cpp +++ b/clang/lib/CodeGen/CodeGenFunction.cpp @@ -716,6 +716,14 @@ void CodeGenFunction::StartFunction(GlobalDecl GD, } } + // If we're in C++ mode and the function name is "main", it is guaranteed + // to be norecurse by the standard (3.6.1.3 "The function main shall not be + // used within a program"). + if (getLangOpts().CPlusPlus) + if (const FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(D)) + if (FD->isMain()) + Fn->addFnAttr(llvm::Attribute::NoRecurse); + llvm::BasicBlock *EntryBB = createBasicBlock("entry", CurFn); // Create a marker to make it easy to insert allocas into the entryblock |