From 8e5eb2b160687bbe3afbe522e4af7518c1bea73f Mon Sep 17 00:00:00 2001
From: Eli Friedman <eli.friedman@gmail.com>
Date: Tue, 10 Sep 2013 23:45:25 +0000
Subject: [PATCH] Don't assert on invalid loop vectorization hint.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@190450 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/Vectorize/LoopVectorize.cpp | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/lib/Transforms/Vectorize/LoopVectorize.cpp b/lib/Transforms/Vectorize/LoopVectorize.cpp
index dff3c0f2f57..9e7335af5f7 100644
--- a/lib/Transforms/Vectorize/LoopVectorize.cpp
+++ b/lib/Transforms/Vectorize/LoopVectorize.cpp
@@ -864,15 +864,18 @@ private:
     unsigned Val = C->getZExtValue();
 
     if (Hint == "width") {
-      assert(isPowerOf2_32(Val) && Val <= MaxVectorWidth &&
-             "Invalid width metadata");
-      Width = Val;
+      if (isPowerOf2_32(Val) && Val <= MaxVectorWidth)
+        Width = Val;
+      else
+        DEBUG(dbgs() << "LV: ignoring invalid width hint metadata");
     } else if (Hint == "unroll") {
-      assert(isPowerOf2_32(Val) && Val <= MaxUnrollFactor &&
-             "Invalid unroll metadata");
-      Unroll = Val;
-    } else
+      if (isPowerOf2_32(Val) && Val <= MaxUnrollFactor)
+        Unroll = Val;
+      else
+        DEBUG(dbgs() << "LV: ignoring invalid unroll hint metadata");
+    } else {
       DEBUG(dbgs() << "LV: ignoring unknown hint " << Hint);
+    }
   }
 };