Remove subtarget dependence from HexagonRegisterInfo.

llvm-svn: 231887

3 files changed, 7 insertions, 14 deletions

diff --git a/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp b/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp
index 69642659916..5556ae9b3c5 100644
--- a/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp
@@ -62,10 +62,8 @@ const int Hexagon_MEMB_AUTOINC_MIN = -8;
 void HexagonInstrInfo::anchor() {}
 
 HexagonInstrInfo::HexagonInstrInfo(HexagonSubtarget &ST)
-  : HexagonGenInstrInfo(Hexagon::ADJCALLSTACKDOWN, Hexagon::ADJCALLSTACKUP),
-    RI(ST), Subtarget(ST) {
-}
-
+    : HexagonGenInstrInfo(Hexagon::ADJCALLSTACKDOWN, Hexagon::ADJCALLSTACKUP),
+      RI(), Subtarget(ST) {}
 
 /// isLoadFromStackSlot - If the specified machine instruction is a direct
 /// load from a stack slot, return the virtual or physical register number of
diff --git a/llvm/lib/Target/Hexagon/HexagonRegisterInfo.cpp b/llvm/lib/Target/Hexagon/HexagonRegisterInfo.cpp
index 3df98d67171..c9c12a011ef 100644
--- a/llvm/lib/Target/Hexagon/HexagonRegisterInfo.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonRegisterInfo.cpp
@@ -37,11 +37,8 @@
 
 using namespace llvm;
 
-
-HexagonRegisterInfo::HexagonRegisterInfo(HexagonSubtarget &st)
-  : HexagonGenRegisterInfo(Hexagon::R31),
-    Subtarget(st) {
-}
+HexagonRegisterInfo::HexagonRegisterInfo()
+    : HexagonGenRegisterInfo(Hexagon::R31) {}
 
 const MCPhysReg *
 HexagonRegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
@@ -51,7 +48,7 @@ HexagonRegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
     Hexagon::R24,   Hexagon::R25,   Hexagon::R26,   Hexagon::R27, 0
   };
 
-  switch(Subtarget.getHexagonArchVersion()) {
+  switch (MF->getSubtarget<HexagonSubtarget>().getHexagonArchVersion()) {
   case HexagonSubtarget::V4:
   case HexagonSubtarget::V5:
     return CalleeSavedRegsV3;
@@ -89,7 +86,7 @@ HexagonRegisterInfo::getCalleeSavedRegClasses(const MachineFunction *MF) const {
     &Hexagon::IntRegsRegClass,     &Hexagon::IntRegsRegClass,
   };
 
-  switch(Subtarget.getHexagonArchVersion()) {
+  switch (MF->getSubtarget<HexagonSubtarget>().getHexagonArchVersion()) {
   case HexagonSubtarget::V4:
   case HexagonSubtarget::V5:
     return CalleeSavedRegClassesV3;
diff --git a/llvm/lib/Target/Hexagon/HexagonRegisterInfo.h b/llvm/lib/Target/Hexagon/HexagonRegisterInfo.h
index a83b5026467..3ef54483d8b 100644
--- a/llvm/lib/Target/Hexagon/HexagonRegisterInfo.h
+++ b/llvm/lib/Target/Hexagon/HexagonRegisterInfo.h
@@ -43,9 +43,7 @@ class HexagonInstrInfo;
 class Type;
 
 struct HexagonRegisterInfo : public HexagonGenRegisterInfo {
-  HexagonSubtarget &Subtarget;
-
-  HexagonRegisterInfo(HexagonSubtarget &st);
+  HexagonRegisterInfo();
 
   /// Code Generation virtual methods...
   const MCPhysReg *