From d4d1a51895929a22ae13a27616e71b91c5ce9662 Mon Sep 17 00:00:00 2001
From: Evan Cheng <evan.cheng@apple.com>
Date: Wed, 28 Apr 2010 20:03:13 +0000
Subject: 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

llvm-svn: 102518
---
 llvm/lib/CodeGen/MachineInstr.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'llvm/lib/CodeGen')

diff --git a/llvm/lib/CodeGen/MachineInstr.cpp b/llvm/lib/CodeGen/MachineInstr.cpp
index 9f855d9db28..99b5beb1365 100644
--- a/llvm/lib/CodeGen/MachineInstr.cpp
+++ b/llvm/lib/CodeGen/MachineInstr.cpp
@@ -1187,7 +1187,15 @@ void MachineInstr::print(raw_ostream &OS, const TargetMachine *TM) const {
       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.
-- 
cgit v1.2.3