From 34c8c7414f57877c4f9fbe1621f879ee1ea079d8 Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Fri, 26 Jun 2009 05:59:16 +0000 Subject: Fix a CodeGenDAGPatterns bug. Check if top level predicates match when it's looking for duplicates. llvm-svn: 74276 --- llvm/utils/TableGen/CodeGenDAGPatterns.cpp | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'llvm/utils/TableGen/CodeGenDAGPatterns.cpp') diff --git a/llvm/utils/TableGen/CodeGenDAGPatterns.cpp b/llvm/utils/TableGen/CodeGenDAGPatterns.cpp index 839059db3aa..6a7d305f783 100644 --- a/llvm/utils/TableGen/CodeGenDAGPatterns.cpp +++ b/llvm/utils/TableGen/CodeGenDAGPatterns.cpp @@ -2390,6 +2390,10 @@ void CodeGenDAGPatterns::GenerateVariants() { // Scan to see if an instruction or explicit pattern already matches this. bool AlreadyExists = false; for (unsigned p = 0, e = PatternsToMatch.size(); p != e; ++p) { + // Skip if the top level predicates do not match. + if (PatternsToMatch[i].getPredicates() != + PatternsToMatch[p].getPredicates()) + continue; // Check to see if this variant already exists. if (Variant->isIsomorphicTo(PatternsToMatch[p].getSrcPattern(), DepVars)) { DOUT << " *** ALREADY EXISTS, ignoring variant.\n"; -- cgit v1.2.3