Allow x86 mov instructions to/from memory with absolute address to be encoded and disassembled with a segment override prefix. Fixes PR16962.
llvm-svn: 199364
diff --git a/llvm/lib/Target/X86/InstPrinter/X86ATTInstPrinter.cpp b/llvm/lib/Target/X86/InstPrinter/X86ATTInstPrinter.cpp
index 8c2bb0f..11a9ada 100644
--- a/llvm/lib/Target/X86/InstPrinter/X86ATTInstPrinter.cpp
+++ b/llvm/lib/Target/X86/InstPrinter/X86ATTInstPrinter.cpp
@@ -229,9 +229,16 @@
void X86ATTInstPrinter::printMemOffset(const MCInst *MI, unsigned Op,
raw_ostream &O) {
const MCOperand &DispSpec = MI->getOperand(Op);
+ const MCOperand &SegReg = MI->getOperand(Op+1);
O << markup("<mem:");
+ // If this has a segment register, print it.
+ if (SegReg.getReg()) {
+ printOperand(MI, Op+1, O);
+ O << ':';
+ }
+
if (DispSpec.isImm()) {
O << formatImm(DispSpec.getImm());
} else {