[x86] Allow segment and address-size overrides for LODS[BWLQ] (PR9385)

[oota-llvm.git] / lib / Target / X86 / InstPrinter / X86IntelInstPrinter.cpp

diff --git a/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp b/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp
index 6f66db9f8d396babb5d31edf1980001214f2c20b..8ea070b39fff5e992c8edb30c6808c40ed2c4427 100644 (file)
--- a/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp
+++ b/lib/Target/X86/InstPrinter/X86IntelInstPrinter.cpp
@@ -113,13 +113,24 @@ void X86IntelInstPrinter::printAVXCC(const MCInst *MI, unsigned Op,
   }
 }
 
+void X86IntelInstPrinter::printRoundingControl(const MCInst *MI, unsigned Op,
+                                   raw_ostream &O) {
+  int64_t Imm = MI->getOperand(Op).getImm() & 0x3;
+  switch (Imm) {
+  case 0: O << "{rn-sae}"; break;
+  case 1: O << "{rd-sae}"; break;
+  case 2: O << "{ru-sae}"; break;
+  case 3: O << "{rz-sae}"; break;
+  }
+}
+
 /// printPCRelImm - This is used to print an immediate value that ends up
 /// being encoded as a pc-relative value.
 void X86IntelInstPrinter::printPCRelImm(const MCInst *MI, unsigned OpNo,
                                         raw_ostream &O) {
   const MCOperand &Op = MI->getOperand(OpNo);
   if (Op.isImm())
-    O << Op.getImm();
+    O << formatImm(Op.getImm());
   else {
     assert(Op.isExpr() && "unknown pcrel immediate operand");
     // If a symbolic branch target was added as a constant expression then print
@@ -127,8 +138,7 @@ void X86IntelInstPrinter::printPCRelImm(const MCInst *MI, unsigned OpNo,
     const MCConstantExpr *BranchTarget = dyn_cast<MCConstantExpr>(Op.getExpr());
     int64_t Address;
     if (BranchTarget && BranchTarget->EvaluateAsAbsolute(Address)) {
-      O << "0x";
-      O.write_hex(Address);
+      O << formatHex((uint64_t)Address);
     }
     else {
       // Otherwise, just print the expression.
@@ -143,7 +153,7 @@ void X86IntelInstPrinter::printOperand(const MCInst *MI, unsigned OpNo,
   if (Op.isReg()) {
     printRegName(O, Op.getReg());
   } else if (Op.isImm()) {
-    O << Op.getImm();
+    O << formatImm((int64_t)Op.getImm());
   } else {
     assert(Op.isExpr() && "unknown operand kind in printOperand");
     O << *Op.getExpr();
@@ -195,9 +205,46 @@ void X86IntelInstPrinter::printMemReference(const MCInst *MI, unsigned Op,
           DispVal = -DispVal;
         }
       }
-      O << DispVal;
+      O << formatImm(DispVal);
     }
   }
   
   O << ']';
 }
+
+void X86IntelInstPrinter::printSrcIdx(const MCInst *MI, unsigned Op,
+                                      raw_ostream &O) {
+  const MCOperand &SegReg   = MI->getOperand(Op+1);
+
+  // If this has a segment register, print it.
+  if (SegReg.getReg()) {
+    printOperand(MI, Op+1, O);
+    O << ':';
+  }
+  O << '[';
+  printOperand(MI, Op, O);
+  O << ']';
+}
+
+void X86IntelInstPrinter::printMemOffset(const MCInst *MI, unsigned Op,
+                                         raw_ostream &O) {
+  const MCOperand &DispSpec = MI->getOperand(Op);
+  const MCOperand &SegReg   = MI->getOperand(Op+1);
+
+  // If this has a segment register, print it.
+  if (SegReg.getReg()) {
+    printOperand(MI, Op+1, O);
+    O << ':';
+  }
+
+  O << '[';
+
+  if (DispSpec.isImm()) {
+    O << formatImm(DispSpec.getImm());
+  } else {
+    assert(DispSpec.isExpr() && "non-immediate displacement?");
+    O << *DispSpec.getExpr();
+  }
+
+  O << ']';
+}