Pretty print DBG_VALUE machine instructions.
Before:
DBG_VALUE %RSI, 0, !-1; dbg:SimpleRegisterCoalescing.cpp:2707
Now:
DBG_VALUE %RSI, 0, !"this"; dbg:SimpleRegisterCoalescing.cpp:2707
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102518 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp
index 9f855d9..99b5beb 100644
--- a/lib/CodeGen/MachineInstr.cpp
+++ b/lib/CodeGen/MachineInstr.cpp
@@ -1187,7 +1187,15 @@
if (TOI.isOptionalDef())
OS << "opt:";
}
- MO.print(OS, TM);
+ if (isDebugValue() && MO.isMetadata()) {
+ // Pretty print DBG_VALUE instructions.
+ const MDNode *MD = MO.getMetadata();
+ if (const MDString *MDS = dyn_cast<MDString>(MD->getOperand(2)))
+ OS << "!\"" << MDS->getString() << '\"';
+ else
+ MO.print(OS, TM);
+ } else
+ MO.print(OS, TM);
}
// Briefly indicate whether any call clobbers were omitted.