GlobalISel: legalize va_arg on AArch64.

Uses a Custom implementation because the slot sizes being a multiple of the
pointer size isn't really universal, even for the architectures that do have a
simple "void *" va_list.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@295255 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 7 insertions, 0 deletions

diff --git a/lib/Target/AArch64/AArch64LegalizerInfo.h b/lib/Target/AArch64/AArch64LegalizerInfo.h
index feacbef9f14..42d4ac130c5 100644
--- a/lib/Target/AArch64/AArch64LegalizerInfo.h
+++ b/lib/Target/AArch64/AArch64LegalizerInfo.h
@@ -25,6 +25,13 @@ class LLVMContext;
 class AArch64LegalizerInfo : public LegalizerInfo {
 public:
   AArch64LegalizerInfo();
+
+  bool legalizeCustom(MachineInstr &MI, MachineRegisterInfo &MRI,
+                      MachineIRBuilder &MIRBuilder) const override;
+
+private:
+  bool legalizeVaArg(MachineInstr &MI, MachineRegisterInfo &MRI,
+                     MachineIRBuilder &MIRBuilder) const;
 };
 } // End llvm namespace.
 #endif