Switch to using -fsjlj-exceptions instead of hard-coding it. Notably, this fixes

calls to the UnwindResumeOrRethrow function for C++/Obj-C exception handling,
for Darwin ARM.

llvm-svn: 95787

1 files changed, 6 insertions, 0 deletions

diff --git a/clang/lib/Driver/ToolChains.cpp b/clang/lib/Driver/ToolChains.cpp
index a00d8d9597e..a7cd711df1b 100644
--- a/clang/lib/Driver/ToolChains.cpp
+++ b/clang/lib/Driver/ToolChains.cpp
@@ -640,6 +640,12 @@ bool Darwin::UseDwarfDebugFlags() const {
   return false;
 }
 
+bool Darwin::UseSjLjExceptions() const {
+  // Darwin uses SjLj exceptions on ARM.
+  return (getTriple().getArch() == llvm::Triple::arm ||
+          getTriple().getArch() == llvm::Triple::thumb);
+}
+
 const char *Darwin::GetDefaultRelocationModel() const {
   return "pic";
 }