From c459bbf0fdef4e9b074de8fee1728c08348c46dc Mon Sep 17 00:00:00 2001
From: Andrew Lenharth <andrewl@lenharth.org>
Date: Wed, 20 Sep 2006 20:08:52 +0000
Subject: [PATCH] Account for pseudo-ops correctly

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30548 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/Alpha/AlphaLLRP.cpp | 95 ++++++++++++++++++----------------
 1 file changed, 51 insertions(+), 44 deletions(-)

diff --git a/lib/Target/Alpha/AlphaLLRP.cpp b/lib/Target/Alpha/AlphaLLRP.cpp
index 0ad86f4bb6d..adae36f1cfd 100644
--- a/lib/Target/Alpha/AlphaLLRP.cpp
+++ b/lib/Target/Alpha/AlphaLLRP.cpp
@@ -58,7 +58,6 @@ namespace {
 	    case Alpha::LDQ:  case Alpha::LDL:
 	    case Alpha::LDWU: case Alpha::LDBU:
 	    case Alpha::LDT: case Alpha::LDS:
-	      
 	    case Alpha::STQ:  case Alpha::STL:
 	    case Alpha::STW:  case Alpha::STB:
 	    case Alpha::STT: case Alpha::STS:
@@ -89,49 +88,57 @@ namespace {
 		  Changed = true; nopintro += 2;
 		  count += 2;
 		} else if (prev[2] 
-			   && prev[2]->getOperand(2).getReg() == 
-			   MI->getOperand(2).getReg()
-			   && prev[2]->getOperand(1).getImmedValue() == 
-			   MI->getOperand(1).getImmedValue()) {
-		  prev[0] = prev[1] = prev[2] = 0;
-		  BuildMI(MBB, MI, Alpha::BIS, 2, Alpha::R31).addReg(Alpha::R31)
-		    .addReg(Alpha::R31);
-		  BuildMI(MBB, MI, Alpha::BIS, 2, Alpha::R31).addReg(Alpha::R31)
-		    .addReg(Alpha::R31);
-		  BuildMI(MBB, MI, Alpha::BIS, 2, Alpha::R31).addReg(Alpha::R31)
-		    .addReg(Alpha::R31);
-		  Changed = true; nopintro += 3;
-		  count += 3;
-		}
-		prev[0] = prev[1];
-		prev[1] = prev[2];
-		prev[2] = MI;
-		break;
-	      }
-	      //fall through
-	    case Alpha::BR:
-	    case Alpha::JMP:
-	      ub = true;
-	      //fall through
-	    default:
-	      prev[0] = prev[1];
-	      prev[1] = prev[2];
-	      prev[2] = 0;
-	      break;
-	    }
-	  }
-	  if (ub || AlignAll) {
-	    //we can align stuff for free at this point
-	    while (count % 4) {
-	      BuildMI(MBB, MBB.end(), Alpha::BIS, 2, Alpha::R31)
-		.addReg(Alpha::R31).addReg(Alpha::R31);
-	      ++count;
-	      ++nopalign;
-	      prev[0] = prev[1];
-	      prev[1] = prev[2];
-	      prev[2] = 0;
-	    }
-	  }
+                           && prev[2]->getOperand(2).getReg() == 
+                           MI->getOperand(2).getReg()
+                           && prev[2]->getOperand(1).getImmedValue() == 
+                           MI->getOperand(1).getImmedValue()) {
+                  prev[0] = prev[1] = prev[2] = 0;
+                  BuildMI(MBB, MI, Alpha::BIS, 2, Alpha::R31).addReg(Alpha::R31)
+                    .addReg(Alpha::R31);
+                  BuildMI(MBB, MI, Alpha::BIS, 2, Alpha::R31).addReg(Alpha::R31)
+                    .addReg(Alpha::R31);
+                  BuildMI(MBB, MI, Alpha::BIS, 2, Alpha::R31).addReg(Alpha::R31)
+                    .addReg(Alpha::R31);
+                  Changed = true; nopintro += 3;
+                  count += 3;
+                }
+                prev[0] = prev[1];
+                prev[1] = prev[2];
+                prev[2] = MI;
+        	break;
+              }
+              prev[0] = prev[1];
+              prev[1] = prev[2];
+              prev[2] = 0;
+              break;
+            case Alpha::ALTENT:
+            case Alpha::MEMLABEL:
+            case Alpha::PCLABEL:
+              --count;
+              break;
+            case Alpha::BR:
+            case Alpha::JMP:
+              ub = true;
+              //fall through
+            default:
+              prev[0] = prev[1];
+              prev[1] = prev[2];
+              prev[2] = 0;
+              break;
+            }
+          }
+          if (ub || AlignAll) {
+            //we can align stuff for free at this point
+            while (count % 4) {
+              BuildMI(MBB, MBB.end(), Alpha::BIS, 2, Alpha::R31)
+                .addReg(Alpha::R31).addReg(Alpha::R31);
+              ++count;
+              ++nopalign;
+              prev[0] = prev[1];
+              prev[1] = prev[2];
+              prev[2] = 0;
+            }
+          }
       }
       return Changed;
     }