commit 0780b6303b99441fef04340b7a083006484f4743
author Jim Grosbach <grosbach@apple.com> Fri Aug 19 23:24:36 2011 +0000
committer Jim Grosbach <grosbach@apple.com> Fri Aug 19 23:24:36 2011 +0000
tree 79ac2a32d79b3f721304fd949d8bae5c232b8af0
parent cc29861901fdf9b60dfdb2d4d9f4670c0320db44

Thumb parsing and encoding support for NOP.

The irony is not lost that this is not a completely trivial patchset.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138143 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp

diff --git a/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp b/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp
index 1999ee7..153f68d 100644
--- a/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp
+++ b/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp
@@ -169,6 +169,13 @@
     return;
   }
 
+  // Thumb1 NOP
+  if (Opcode == ARM::tMOVr && MI->getOperand(0).getReg() == ARM::R8 &&
+      MI->getOperand(1).getReg() == ARM::R8) {
+    O << "\tnop";
+    return;
+  }
+
   printInstruction(MI, O);
 }