From: Nick Lewycky <nicholas@mxc.ca>
Date: Mon, 13 Feb 2012 23:45:02 +0000 (+0000)
Subject: Mark the cxa_guard_{abort,acquire,release} functions nounwind.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=e76872e81ea32fbc863d8d7ef6eadc91a8f8673b;p=clang

Mark the cxa_guard_{abort,acquire,release} functions nounwind.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150435 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/CodeGen/ItaniumCXXABI.cpp b/lib/CodeGen/ItaniumCXXABI.cpp
index 8dee17a38c..a8b9942882 100644
--- a/lib/CodeGen/ItaniumCXXABI.cpp
+++ b/lib/CodeGen/ItaniumCXXABI.cpp
@@ -979,7 +979,8 @@ static llvm::Constant *getGuardAcquireFn(CodeGenModule &CGM,
     llvm::FunctionType::get(CGM.getTypes().ConvertType(CGM.getContext().IntTy),
                             GuardPtrTy, /*isVarArg=*/false);
   
-  return CGM.CreateRuntimeFunction(FTy, "__cxa_guard_acquire");
+  return CGM.CreateRuntimeFunction(FTy, "__cxa_guard_acquire",
+                                   llvm::Attribute::NoUnwind);
 }
 
 static llvm::Constant *getGuardReleaseFn(CodeGenModule &CGM,
@@ -988,7 +989,8 @@ static llvm::Constant *getGuardReleaseFn(CodeGenModule &CGM,
   llvm::FunctionType *FTy =
     llvm::FunctionType::get(CGM.VoidTy, GuardPtrTy, /*isVarArg=*/false);
   
-  return CGM.CreateRuntimeFunction(FTy, "__cxa_guard_release");
+  return CGM.CreateRuntimeFunction(FTy, "__cxa_guard_release",
+                                   llvm::Attribute::NoUnwind);
 }
 
 static llvm::Constant *getGuardAbortFn(CodeGenModule &CGM,
@@ -997,7 +999,8 @@ static llvm::Constant *getGuardAbortFn(CodeGenModule &CGM,
   llvm::FunctionType *FTy =
     llvm::FunctionType::get(CGM.VoidTy, GuardPtrTy, /*isVarArg=*/false);
   
-  return CGM.CreateRuntimeFunction(FTy, "__cxa_guard_abort");
+  return CGM.CreateRuntimeFunction(FTy, "__cxa_guard_abort",
+                                   llvm::Attribute::NoUnwind);
 }
 
 namespace {