From: Evan Cheng <evan.cheng@apple.com>
Date: Mon, 27 Jul 2009 00:33:08 +0000 (+0000)
Subject: Use the right instructions to copy between GPR and the more strictive tGPR classes... 
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=186332f89854b216c815b5e6ec7ac5ab12e89119;p=platform%2Fupstream%2Fllvm.git

Use the right instructions to copy between GPR and the more strictive tGPR classes. t2MOV does not match the RC requirements.

llvm-svn: 77175
---

diff --git a/llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp b/llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp
index 93ac1d5..059f2bf 100644
--- a/llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp
+++ b/llvm/lib/Target/ARM/ARMBaseInstrInfo.cpp
@@ -612,7 +612,7 @@ ARMBaseInstrInfo::copyRegToReg(MachineBasicBlock &MBB,
   }
 
   if (DestRC == ARM::GPRRegisterClass)
-    AddDefaultCC(AddDefaultPred(BuildMI(MBB, I, DL, get(getOpcode(ARMII::MOVr)),
+    AddDefaultCC(AddDefaultPred(BuildMI(MBB, I, DL, get(ARM::MOVr),
                                         DestReg).addReg(SrcReg)));
   else if (DestRC == ARM::SPRRegisterClass)
     AddDefaultPred(BuildMI(MBB, I, DL, get(ARM::FCPYS), DestReg)
diff --git a/llvm/lib/Target/ARM/Thumb2InstrInfo.cpp b/llvm/lib/Target/ARM/Thumb2InstrInfo.cpp
index d74e485d..421f7f9 100644
--- a/llvm/lib/Target/ARM/Thumb2InstrInfo.cpp
+++ b/llvm/lib/Target/ARM/Thumb2InstrInfo.cpp
@@ -84,14 +84,21 @@ Thumb2InstrInfo::copyRegToReg(MachineBasicBlock &MBB,
   DebugLoc DL = DebugLoc::getUnknownLoc();
   if (I != MBB.end()) DL = I->getDebugLoc();
 
-  if ((DestRC == ARM::GPRRegisterClass &&
-       SrcRC == ARM::tGPRRegisterClass) ||
-      (DestRC == ARM::tGPRRegisterClass &&
-       SrcRC == ARM::GPRRegisterClass)) {
+  if (DestRC == ARM::GPRRegisterClass &&
+      SrcRC == ARM::GPRRegisterClass) {
     AddDefaultCC(AddDefaultPred(BuildMI(MBB, I, DL, get(ARM::t2MOVr),
                                         DestReg).addReg(SrcReg)));
     return true;
+  } else if (DestRC == ARM::GPRRegisterClass &&
+      SrcRC == ARM::tGPRRegisterClass) {
+    BuildMI(MBB, I, DL, get(ARM::tMOVtgpr2gpr), DestReg).addReg(SrcReg);
+    return true;
+  } else if (DestRC == ARM::tGPRRegisterClass &&
+             SrcRC == ARM::GPRRegisterClass) {
+    BuildMI(MBB, I, DL, get(ARM::tMOVgpr2tgpr), DestReg).addReg(SrcReg);
+    return true;
   }
 
+  // Handle SPR, DPR, and QPR copies.
   return ARMBaseInstrInfo::copyRegToReg(MBB, I, DestReg, SrcReg, DestRC, SrcRC);
 }