Add the 'noinline' attribute to call sites within __try bodies

LLVM doesn't support non-call exceptions, so inlining makes it harder to
catch such asynchronous exceptions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@228876 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp
index 0574a1a34d..60ab2effbe 100644
--- a/lib/CodeGen/CGCall.cpp
+++ b/lib/CodeGen/CGCall.cpp
@@ -3325,6 +3325,12 @@ RValue CodeGenFunction::EmitCall(const CGFunctionInfo &CallInfo,
         Attrs.addAttribute(getLLVMContext(), llvm::AttributeSet::FunctionIndex,
                            llvm::Attribute::AlwaysInline);
 
+  // Disable inlining inside SEH __try blocks.
+  if (IsSEHTryScope)
+    Attrs =
+        Attrs.addAttribute(getLLVMContext(), llvm::AttributeSet::FunctionIndex,
+                           llvm::Attribute::NoInline);
+
   CS.setAttributes(Attrs);
   CS.setCallingConv(static_cast<llvm::CallingConv::ID>(CallingConv));