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, 3 insertions, 2 deletions

diff --git a/llvm/lib/Target/Alpha/AlphaRegisterInfo.cpp b/llvm/lib/Target/Alpha/AlphaRegisterInfo.cpp
index 72a84072c27..59d3e817d9b 100644
--- a/llvm/lib/Target/Alpha/AlphaRegisterInfo.cpp
+++ b/llvm/lib/Target/Alpha/AlphaRegisterInfo.cpp
@@ -164,7 +164,8 @@ void AlphaRegisterInfo::reMaterialize(MachineBasicBlock &MBB,
   MBB.insert(I, MI);
 }
 
-const unsigned* AlphaRegisterInfo::getCalleeSavedRegs() const {
+const unsigned* AlphaRegisterInfo::getCalleeSavedRegs(const MachineFunction *MF)
+                                                                         const {
   static const unsigned CalleeSavedRegs[] = {
     Alpha::R9, Alpha::R10,
     Alpha::R11, Alpha::R12,
@@ -178,7 +179,7 @@ const unsigned* AlphaRegisterInfo::getCalleeSavedRegs() const {
 }
 
 const TargetRegisterClass* const*
-AlphaRegisterInfo::getCalleeSavedRegClasses() const {
+AlphaRegisterInfo::getCalleeSavedRegClasses(const MachineFunction *MF) const {
   static const TargetRegisterClass * const CalleeSavedRegClasses[] = {
     &Alpha::GPRCRegClass, &Alpha::GPRCRegClass,
     &Alpha::GPRCRegClass, &Alpha::GPRCRegClass,