From ceb224148e8425334e46fed686f911bbc99b5c98 Mon Sep 17 00:00:00 2001
From: Brian Gaeke <gaeke@uiuc.edu>
Date: Fri, 18 Jun 2004 06:27:59 +0000
Subject: [PATCH] Support printing base+offset pairs where the offset is a
 register. Use this for printing the jmpl indirect-call instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14224 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/Sparc/SparcAsmPrinter.cpp     | 35 +++++++++++++++++-------
 lib/Target/SparcV8/SparcV8AsmPrinter.cpp | 35 +++++++++++++++++-------
 2 files changed, 50 insertions(+), 20 deletions(-)

diff --git a/lib/Target/Sparc/SparcAsmPrinter.cpp b/lib/Target/Sparc/SparcAsmPrinter.cpp
index e40ba75326b..09d61b7b2d9 100644
--- a/lib/Target/Sparc/SparcAsmPrinter.cpp
+++ b/lib/Target/Sparc/SparcAsmPrinter.cpp
@@ -69,7 +69,7 @@ namespace {
     void emitGlobalConstant(const Constant *CV);
     void printConstantPool(MachineConstantPool *MCP);
     void printOperand(const MachineInstr *MI, int opNum);
-    void printBaseOffsetPair (const MachineInstr *MI, int i);
+    void printBaseOffsetPair (const MachineInstr *MI, int i, bool brackets=true);
     void printMachineInstruction(const MachineInstr *MI);
     bool runOnMachineFunction(MachineFunction &F);    
     bool doInitialization(Module &M);
@@ -455,17 +455,26 @@ static bool isStoreInstruction (const MachineInstr *MI) {
   }
 }
 
-void V8Printer::printBaseOffsetPair (const MachineInstr *MI, int i) {
-  O << "[";
+/// printBaseOffsetPair - Print two consecutive operands of MI, starting at #i,
+/// which form a base + offset pair (which may have brackets around it, if
+/// brackets is true, or may be in the form base - constant, if offset is a
+/// negative constant).
+///
+void V8Printer::printBaseOffsetPair (const MachineInstr *MI, int i,
+                                     bool brackets) {
+  if (brackets) O << "[";
   printOperand (MI, i);
-  assert (MI->getOperand (i + 1).isImmediate()
-    && "2nd half of base-offset pair must be immediate-value machine operand");
-  int Val = (int) MI->getOperand (i + 1).getImmedValue ();
-  if (Val != 0) {
-    O << ((Val >= 0) ? " + " : " - ");
-    O << ((Val >= 0) ? Val : -Val);
+  if (MI->getOperand (i + 1).isImmediate()) {
+    int Val = (int) MI->getOperand (i + 1).getImmedValue ();
+    if (Val != 0) {
+      O << ((Val >= 0) ? " + " : " - ");
+      O << ((Val >= 0) ? Val : -Val);
+    }
+  } else {
+    O << " + ";
+    printOperand (MI, i + 1);
   }
-  O << "]";
+  if (brackets) O << "]";
 }
 
 /// printMachineInstruction -- Print out a single SparcV8 LLVM instruction
@@ -492,6 +501,12 @@ void V8Printer::printMachineInstruction(const MachineInstr *MI) {
     printBaseOffsetPair (MI, 0);
     O << "\n";
     return;
+  } else if (Opcode == V8::JMPLrr) {
+    printBaseOffsetPair (MI, 1, false);
+    O << ", ";
+    printOperand (MI, 0);
+    O << "\n";
+    return;
   }
 
   // print non-immediate, non-register-def operands
diff --git a/lib/Target/SparcV8/SparcV8AsmPrinter.cpp b/lib/Target/SparcV8/SparcV8AsmPrinter.cpp
index e40ba75326b..09d61b7b2d9 100644
--- a/lib/Target/SparcV8/SparcV8AsmPrinter.cpp
+++ b/lib/Target/SparcV8/SparcV8AsmPrinter.cpp
@@ -69,7 +69,7 @@ namespace {
     void emitGlobalConstant(const Constant *CV);
     void printConstantPool(MachineConstantPool *MCP);
     void printOperand(const MachineInstr *MI, int opNum);
-    void printBaseOffsetPair (const MachineInstr *MI, int i);
+    void printBaseOffsetPair (const MachineInstr *MI, int i, bool brackets=true);
     void printMachineInstruction(const MachineInstr *MI);
     bool runOnMachineFunction(MachineFunction &F);    
     bool doInitialization(Module &M);
@@ -455,17 +455,26 @@ static bool isStoreInstruction (const MachineInstr *MI) {
   }
 }
 
-void V8Printer::printBaseOffsetPair (const MachineInstr *MI, int i) {
-  O << "[";
+/// printBaseOffsetPair - Print two consecutive operands of MI, starting at #i,
+/// which form a base + offset pair (which may have brackets around it, if
+/// brackets is true, or may be in the form base - constant, if offset is a
+/// negative constant).
+///
+void V8Printer::printBaseOffsetPair (const MachineInstr *MI, int i,
+                                     bool brackets) {
+  if (brackets) O << "[";
   printOperand (MI, i);
-  assert (MI->getOperand (i + 1).isImmediate()
-    && "2nd half of base-offset pair must be immediate-value machine operand");
-  int Val = (int) MI->getOperand (i + 1).getImmedValue ();
-  if (Val != 0) {
-    O << ((Val >= 0) ? " + " : " - ");
-    O << ((Val >= 0) ? Val : -Val);
+  if (MI->getOperand (i + 1).isImmediate()) {
+    int Val = (int) MI->getOperand (i + 1).getImmedValue ();
+    if (Val != 0) {
+      O << ((Val >= 0) ? " + " : " - ");
+      O << ((Val >= 0) ? Val : -Val);
+    }
+  } else {
+    O << " + ";
+    printOperand (MI, i + 1);
   }
-  O << "]";
+  if (brackets) O << "]";
 }
 
 /// printMachineInstruction -- Print out a single SparcV8 LLVM instruction
@@ -492,6 +501,12 @@ void V8Printer::printMachineInstruction(const MachineInstr *MI) {
     printBaseOffsetPair (MI, 0);
     O << "\n";
     return;
+  } else if (Opcode == V8::JMPLrr) {
+    printBaseOffsetPair (MI, 1, false);
+    O << ", ";
+    printOperand (MI, 0);
+    O << "\n";
+    return;
   }
 
   // print non-immediate, non-register-def operands