From 5be22a12c2fdb4e13ead4b2e8a8a68f07fb1f270 Mon Sep 17 00:00:00 2001
From: Michael Ilseman <milseman@apple.com>
Date: Fri, 12 Dec 2014 21:48:03 +0000
Subject: Clean up static analyzer warnings.

Clang's static analyzer found several potential cases of undefined
behavior, use of un-initialized values, and potentially null pointer
dereferences in tablegen, Support, MC, and ADT. This cleans them up
with specific assertions on the assumptions of the code.

llvm-svn: 224154
---
 llvm/utils/TableGen/CodeGenDAGPatterns.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'llvm/utils/TableGen/CodeGenDAGPatterns.cpp')

diff --git a/llvm/utils/TableGen/CodeGenDAGPatterns.cpp b/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
index 8b90d16d731..c3de37e9453 100644
--- a/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
+++ b/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
@@ -2569,8 +2569,10 @@ FindPatternInputsAndOutputs(TreePattern *I, TreePatternNode *Pat,
       I->error("set destination should be a register!");
 
     DefInit *Val = dyn_cast<DefInit>(Dest->getLeafValue());
-    if (!Val)
+    if (!Val) {
       I->error("set destination should be a register!");
+      continue;
+    }
 
     if (Val->getDef()->isSubClassOf("RegisterClass") ||
         Val->getDef()->isSubClassOf("ValueType") ||
-- 
cgit v1.2.3