[PowerPC] Support the (old) cntlz instruction alias

[oota-llvm.git] / lib / Target / AArch64 / AArch64LoadStoreOptimizer.cpp

diff --git a/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp b/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp
index 81579810b648a6829ddf9933aed77f567b3bcf31..8463ce650bd16be3c132d0128b912da7e2205993 100644 (file)
--- a/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp
+++ b/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp
@@ -135,6 +135,8 @@ static bool isUnscaledLdst(unsigned Opc) {
     return true;
   case AArch64::LDURXi:
     return true;
+  case AArch64::LDURSWi:
+    return true;
   }
 }
 
@@ -173,6 +175,9 @@ int AArch64LoadStoreOpt::getMemSize(MachineInstr *MemMI) {
   case AArch64::LDRXui:
   case AArch64::LDURXi:
     return 8;
+  case AArch64::LDRSWui:
+  case AArch64::LDURSWi:
+    return 4;
   }
 }
 
@@ -210,6 +215,9 @@ static unsigned getMatchingPairOpcode(unsigned Opc) {
   case AArch64::LDRXui:
   case AArch64::LDURXi:
     return AArch64::LDPXi;
+  case AArch64::LDRSWui:
+  case AArch64::LDURSWi:
+    return AArch64::LDPSWi;
   }
 }
 
@@ -237,6 +245,8 @@ static unsigned getPreIndexedOpcode(unsigned Opc) {
     return AArch64::LDRWpre;
   case AArch64::LDRXui:
     return AArch64::LDRXpre;
+  case AArch64::LDRSWui:
+    return AArch64::LDRSWpre;
   }
 }
 
@@ -264,6 +274,8 @@ static unsigned getPostIndexedOpcode(unsigned Opc) {
     return AArch64::LDRWpost;
   case AArch64::LDRXui:
     return AArch64::LDRXpost;
+  case AArch64::LDRSWui:
+    return AArch64::LDRSWpost;
   }
 }
 
@@ -780,6 +792,7 @@ bool AArch64LoadStoreOpt::optimizeBlock(MachineBasicBlock &MBB) {
     case AArch64::LDRQui:
     case AArch64::LDRXui:
     case AArch64::LDRWui:
+    case AArch64::LDRSWui:
     // do the unscaled versions as well
     case AArch64::STURSi:
     case AArch64::STURDi:
@@ -790,7 +803,8 @@ bool AArch64LoadStoreOpt::optimizeBlock(MachineBasicBlock &MBB) {
     case AArch64::LDURDi:
     case AArch64::LDURQi:
     case AArch64::LDURWi:
-    case AArch64::LDURXi: {
+    case AArch64::LDURXi:
+    case AArch64::LDURSWi: {
       // If this is a volatile load/store, don't mess with it.
       if (MI->hasOrderedMemoryRef()) {
         ++MBBI;
@@ -931,10 +945,8 @@ bool AArch64LoadStoreOpt::optimizeBlock(MachineBasicBlock &MBB) {
 }
 
 bool AArch64LoadStoreOpt::runOnMachineFunction(MachineFunction &Fn) {
-  const TargetMachine &TM = Fn.getTarget();
-  TII = static_cast<const AArch64InstrInfo *>(
-      TM.getSubtargetImpl()->getInstrInfo());
-  TRI = TM.getSubtargetImpl()->getRegisterInfo();
+  TII = static_cast<const AArch64InstrInfo *>(Fn.getSubtarget().getInstrInfo());
+  TRI = Fn.getSubtarget().getRegisterInfo();
 
   bool Modified = false;
   for (auto &MBB : Fn)