Update docs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@185250 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/Vectorize/SLPVectorizer.cpp b/lib/Transforms/Vectorize/SLPVectorizer.cpp
index 03b9679e6cdec237f8f22ddfb3b1f5cc6b02aff2..d609302522e8906193b4319f90e3c087f4ea5261 100644 (file)
--- a/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -47,8 +47,8 @@ using namespace llvm;
 
 static cl::opt<int>
     SLPCostThreshold("slp-threshold", cl::init(0), cl::Hidden,
-                     cl::desc("Only vectorize trees if the gain is above this "
-                              "number. (gain = -cost of vectorization)"));
+                     cl::desc("Only vectorize if you gain more than this "
+                              "number "));
 namespace {
 
 static const unsigned MinVecRegSize = 128;
@@ -697,7 +697,6 @@ int FuncSLP::getTreeCost_rec(ArrayRef<Value *> VL, unsigned Depth) {
     }
   }
 
-
   // Calculate the extract cost.
   unsigned ExternalUserExtractCost = 0;
   for (unsigned i = 0, e = VL.size(); i < e; ++i)