From: Bill Wendling <isanbard@gmail.com>
Date: Fri, 3 Dec 2010 01:55:30 +0000 (+0000)
Subject: Ignore decode table conflicts in the tMOVgpr2tgpr, tMOVgpr2gpr, and tMOVtgpr2gpr
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=b40a90597b0b03eb04a14a494a43dcc7f58ae5f8;p=oota-llvm.git

Ignore decode table conflicts in the tMOVgpr2tgpr, tMOVgpr2gpr, and tMOVtgpr2gpr
instructions. They are handled as special moves, but encoded as a normal move.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120779 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/utils/TableGen/ARMDecoderEmitter.cpp b/utils/TableGen/ARMDecoderEmitter.cpp
index 64e25c9ad8c..22b2c037368 100644
--- a/utils/TableGen/ARMDecoderEmitter.cpp
+++ b/utils/TableGen/ARMDecoderEmitter.cpp
@@ -1731,6 +1731,13 @@ ARMDEBackend::populateInstruction(const CodeGenInstruction &CGI,
         Name == "tSpill" || Name == "tLDRcp" || Name == "tRestore" ||
         Name == "t2LEApcrelJT" || Name == "t2MOVCCi16")
       return false;
+
+    // tMOVgpr2tgpr, tMOVgpr2gpr, and tMOVtgpr2gpr are used by the code
+    // generator for special kinds of moves, but are encoded the same. Safely
+    // ignore them here.
+    if (Name == "tMOVgpr2tgpr" || Name == "tMOVgpr2gpr" ||
+        Name == "tMOVtgpr2gpr")
+      return false;
   }
 
   // Dumps the instruction encoding format.