Add an MF argument to TRI::getPointerRegClass() and TII::getRegClass().

The getPointerRegClass() hook can return register classes that depend on
the calling convention of the current function (ptr_rc_tailcall).

So far, we have been able to infer the calling convention from the
subtarget alone, but as we add support for multiple calling conventions
per target, that no longer works.

Patch by Yiannis Tsiouris!

llvm-svn: 156328

1 files changed, 3 insertions, 2 deletions

diff --git a/llvm/lib/Target/TargetInstrInfo.cpp b/llvm/lib/Target/TargetInstrInfo.cpp
index 440f9ad00de..6088ba5cc35 100644
--- a/llvm/lib/Target/TargetInstrInfo.cpp
+++ b/llvm/lib/Target/TargetInstrInfo.cpp
@@ -28,13 +28,14 @@ TargetInstrInfo::~TargetInstrInfo() {
 
 const TargetRegisterClass*
 TargetInstrInfo::getRegClass(const MCInstrDesc &MCID, unsigned OpNum,
-                             const TargetRegisterInfo *TRI) const {
+                             const TargetRegisterInfo *TRI,
+                             const MachineFunction &MF) const {
   if (OpNum >= MCID.getNumOperands())
     return 0;
 
   short RegClass = MCID.OpInfo[OpNum].RegClass;
   if (MCID.OpInfo[OpNum].isLookupPtrRegClass())
-    return TRI->getPointerRegClass(RegClass);
+    return TRI->getPointerRegClass(MF, RegClass);
 
   // Instructions like INSERT_SUBREG do not have fixed register classes.
   if (RegClass < 0)