Handle 'X' constraint in asm's better.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46485 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter.cpp
index 7c4a8e1..2b83588 100644
--- a/lib/CodeGen/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter.cpp
@@ -1108,9 +1108,10 @@
// Disassemble the AsmStr, printing out the literal pieces, the operands, etc.
const char *AsmStr = MI->getOperand(NumDefs).getSymbolName();
- // If this asmstr is empty, don't bother printing the #APP/#NOAPP markers.
+ // If this asmstr is empty, just print the #APP/#NOAPP markers.
+ // These are useful to see where empty asm's wound up.
if (AsmStr[0] == 0) {
- O << "\n"; // Tab already printed, avoid double indenting next instr.
+ O << TAI->getInlineAsmStart() << "\n\t" << TAI->getInlineAsmEnd() << "\n";
return;
}