From 3b131d7cc4dc4bbb329c136705b37dc255995fbd Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Tue, 26 Jan 2010 06:42:44 +0000
Subject: [PATCH] Now that printPICJumpTableSetLabel is not overloaded, inline
 it into its only caller, allowing us to simplify it and hoist bits out of the
 loop.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94528 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/llvm/CodeGen/AsmPrinter.h     |  5 ----
 lib/CodeGen/AsmPrinter/AsmPrinter.cpp | 40 ++++++++++++---------------
 2 files changed, 18 insertions(+), 27 deletions(-)

diff --git a/include/llvm/CodeGen/AsmPrinter.h b/include/llvm/CodeGen/AsmPrinter.h
index 09a5cd89b66..86072812619 100644
--- a/include/llvm/CodeGen/AsmPrinter.h
+++ b/include/llvm/CodeGen/AsmPrinter.h
@@ -348,11 +348,6 @@ namespace llvm {
     /// printKill - This method prints the specified kill machine instruction.
     void printKill(const MachineInstr *MI) const;
 
-    /// printPICJumpTableSetLabel - This method prints a set label for the
-    /// specified MachineBasicBlock for a jumptable entry.
-    virtual void printPICJumpTableSetLabel(unsigned uid,
-                                           const MachineBasicBlock *MBB) const;
-    
     /// printVisibility - This prints visibility information about symbol, if
     /// this is suported by the target.
     void printVisibility(MCSymbol *Sym, unsigned Visibility) const;
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index 6676289e1a0..a91ab22ce1b 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -505,8 +505,8 @@ void AsmPrinter::EmitJumpTableInfo(MachineFunction &MF) {
 
   EmitAlignment(Log2_32(MJTI->getEntryAlignment(*TM.getTargetData())));
   
-  for (unsigned i = 0, e = JT.size(); i != e; ++i) {
-    const std::vector<MachineBasicBlock*> &JTBBs = JT[i].MBBs;
+  for (unsigned JTI = 0, e = JT.size(); JTI != e; ++JTI) {
+    const std::vector<MachineBasicBlock*> &JTBBs = JT[JTI].MBBs;
     
     // If this jump table was deleted, ignore it. 
     if (JTBBs.empty()) continue;
@@ -516,11 +516,19 @@ void AsmPrinter::EmitJumpTableInfo(MachineFunction &MF) {
     // relocations the assembler will generate for the jump table.
     if (MJTI->getEntryKind() == MachineJumpTableInfo::EK_LabelDifference32 &&
         MAI->getSetDirective()) {
-      SmallPtrSet<MachineBasicBlock*, 16> EmittedSets;
-      for (unsigned ii = 0, ee = JTBBs.size(); ii != ee; ++ii)
-        if (EmittedSets.insert(JTBBs[ii]))
-          printPICJumpTableSetLabel(i, JTBBs[ii]);
-    }
+      SmallPtrSet<const MachineBasicBlock*, 16> EmittedSets;
+      const TargetLowering *TLI = TM.getTargetLowering();
+      const MCExpr *Base = TLI->getPICJumpTableRelocBaseExpr(&MF, JTI,
+                                                             OutContext);
+      for (unsigned ii = 0, ee = JTBBs.size(); ii != ee; ++ii) {
+        const MachineBasicBlock *MBB = JTBBs[ii];
+        if (!EmittedSets.insert(MBB)) continue;
+        
+        O << MAI->getSetDirective() << ' '
+          << *GetJTSetSymbol(JTI, MBB->getNumber()) << ','
+          << *MBB->getSymbol(OutContext) << '-' << *Base << '\n';
+      }
+    }          
     
     // On some targets (e.g. Darwin) we want to emit two consequtive labels
     // before each jump table.  The first label is never referenced, but tells
@@ -529,12 +537,12 @@ void AsmPrinter::EmitJumpTableInfo(MachineFunction &MF) {
     if (JTInDiffSection && MAI->getLinkerPrivateGlobalPrefix()[0])
       // FIXME: This doesn't have to have any specific name, just any randomly
       // named and numbered 'l' label would work.  Simplify GetJTISymbol.
-      OutStreamer.EmitLabel(GetJTISymbol(i, true));
+      OutStreamer.EmitLabel(GetJTISymbol(JTI, true));
 
-    OutStreamer.EmitLabel(GetJTISymbol(i));
+    OutStreamer.EmitLabel(GetJTISymbol(JTI));
 
     for (unsigned ii = 0, ee = JTBBs.size(); ii != ee; ++ii)
-      EmitJumpTableEntry(MJTI, JTBBs[ii], i);
+      EmitJumpTableEntry(MJTI, JTBBs[ii], JTI);
   }
 }
 
@@ -1542,18 +1550,6 @@ void AsmPrinter::EmitBasicBlockStart(const MachineBasicBlock *MBB) const {
   }
 }
 
-/// printPICJumpTableSetLabel - This method prints a set label for the
-/// specified MachineBasicBlock for a jumptable entry.
-void AsmPrinter::printPICJumpTableSetLabel(unsigned uid, 
-                                           const MachineBasicBlock *MBB) const {
-  const TargetLowering *TLI = TM.getTargetLowering();
-  O << MAI->getSetDirective() << ' ' << MAI->getPrivateGlobalPrefix()
-    << *GetJTSetSymbol(uid, MBB->getNumber()) << ','
-    << *MBB->getSymbol(OutContext) << '-'
-    << *TLI->getPICJumpTableRelocBaseExpr(MF, uid, OutContext)
-    << '\n';
-}
-
 void AsmPrinter::printVisibility(MCSymbol *Sym, unsigned Visibility) const {
   MCSymbolAttr Attr = MCSA_Invalid;
   
-- 
2.34.1