Long live the exception handling!

This patch fills the last necessary bits to enable exceptions
handling in LLVM. Currently only on x86-32/linux.

In fact, this patch adds necessary intrinsics (and their lowering) which
represent really weird target-specific gcc builtins used inside unwinder.

After corresponding llvm-gcc patch will land (easy) exceptions should be
more or less workable. However, exceptions handling support should not be 
thought as 'finished': I expect many small and not so small glitches
everywhere.

llvm-svn: 39855

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/CodeGen/PrologEpilogInserter.cpp b/llvm/lib/CodeGen/PrologEpilogInserter.cpp
index 0658ad23c8d..882c6a74404 100644
--- a/llvm/lib/CodeGen/PrologEpilogInserter.cpp
+++ b/llvm/lib/CodeGen/PrologEpilogInserter.cpp
@@ -121,7 +121,7 @@ void PEI::calculateCalleeSavedRegisters(MachineFunction &Fn) {
   const TargetFrameInfo *TFI = Fn.getTarget().getFrameInfo();
 
   // Get the callee saved register list...
-  const unsigned *CSRegs = RegInfo->getCalleeSavedRegs();
+  const unsigned *CSRegs = RegInfo->getCalleeSavedRegs(&Fn);
 
   // Get the function call frame set-up and tear-down instruction opcode
   int FrameSetupOpcode   = RegInfo->getCallFrameSetupOpcode();
@@ -170,7 +170,7 @@ void PEI::calculateCalleeSavedRegisters(MachineFunction &Fn) {
   // function, thus needing to be saved and restored in the prolog/epilog.
   //
   const TargetRegisterClass* const *CSRegClasses =
-    RegInfo->getCalleeSavedRegClasses();
+    RegInfo->getCalleeSavedRegClasses(&Fn);
   std::vector<CalleeSavedInfo> CSI;
   for (unsigned i = 0; CSRegs[i]; ++i) {
     unsigned Reg = CSRegs[i];