commit 6ef6ceda6883d0ee543d8da86d16b0fcdcecab96
author Joerg Sonnenberger <joerg@bec.de> Thu Feb 17 23:22:19 2011 +0000
committer Joerg Sonnenberger <joerg@bec.de> Thu Feb 17 23:22:19 2011 +0000
tree 8157a69eb41bce515ba09a448da17ce1f015d179
parent c8cb8ef9c2d5e354db661022d707a19b3533c00e

Check that MnemonicAlias doesn't map back to the same string.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125792 91177308-0d34-0410-b5e6-96231b3b80d8

utils/TableGen/AsmMatcherEmitter.cpp

diff --git a/utils/TableGen/AsmMatcherEmitter.cpp b/utils/TableGen/AsmMatcherEmitter.cpp
index 35f5f6f..e3def41 100644
--- a/utils/TableGen/AsmMatcherEmitter.cpp
+++ b/utils/TableGen/AsmMatcherEmitter.cpp
@@ -1881,6 +1881,8 @@
         AliasWithNoPredicate = i;
         continue;
       }
+      if (R->getValueAsString("ToMnemonic") == I->first)
+        throw TGError(R->getLoc(), "MnemonicAlias to the same string");
 
       if (!MatchCode.empty())
         MatchCode += "else ";