TLI: Remove DAG argument from getRegisterByName

Replace with the MachineFunction. X86 is the only user, and only uses
it for the function. This removes one obstacle from using this in
GlobalISel. The other is the more tolerable EVT argument.

The X86 use of the function seems questionable to me. It checks hasFP,
before frame lowering.

llvm-svn: 373292

2 files changed, 6 insertions, 6 deletions

diff --git a/llvm/lib/Target/Hexagon/HexagonISelLowering.cpp b/llvm/lib/Target/Hexagon/HexagonISelLowering.cpp
index be4153e312f..8a8986e232a 100644
--- a/llvm/lib/Target/Hexagon/HexagonISelLowering.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonISelLowering.cpp
@@ -240,12 +240,12 @@ bool HexagonTargetLowering::mayBeEmittedAsTailCall(const CallInst *CI) const {
   return true;
 }
 
-unsigned  HexagonTargetLowering::getRegisterByName(const char* RegName, EVT VT,
-                                              SelectionDAG &DAG) const {
+Register HexagonTargetLowering::getRegisterByName(const char* RegName, EVT VT,
+                                                  const MachineFunction &) const {
   // Just support r19, the linux kernel uses it.
-  unsigned Reg = StringSwitch<unsigned>(RegName)
+  Register Reg = StringSwitch<Register>(RegName)
                      .Case("r19", Hexagon::R19)
-                     .Default(0);
+                     .Default(Register());
   if (Reg)
     return Reg;
 
diff --git a/llvm/lib/Target/Hexagon/HexagonISelLowering.h b/llvm/lib/Target/Hexagon/HexagonISelLowering.h
index 642ad1db19c..75f553bfec7 100644
--- a/llvm/lib/Target/Hexagon/HexagonISelLowering.h
+++ b/llvm/lib/Target/Hexagon/HexagonISelLowering.h
@@ -229,8 +229,8 @@ namespace HexagonISD {
 
     bool mayBeEmittedAsTailCall(const CallInst *CI) const override;
 
-    unsigned getRegisterByName(const char* RegName, EVT VT,
-                               SelectionDAG &DAG) const override;
+    Register getRegisterByName(const char* RegName, EVT VT,
+                               const MachineFunction &MF) const override;
 
     /// If a physical register, this returns the register that receives the
     /// exception address on entry to an EH pad.