Make -vectorize-... proper cc1 flags instead of abusing -backend-option. Fixes
usage of clang as a library.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@184812 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/BackendUtil.cpp b/lib/CodeGen/BackendUtil.cpp
index 7d1a3c8..e3a44f9 100644
--- a/lib/CodeGen/BackendUtil.cpp
+++ b/lib/CodeGen/BackendUtil.cpp
@@ -220,6 +220,9 @@
   PassManagerBuilderWrapper PMBuilder(CodeGenOpts, LangOpts);
   PMBuilder.OptLevel = OptLevel;
   PMBuilder.SizeLevel = CodeGenOpts.OptimizeSize;
+  PMBuilder.BBVectorize = CodeGenOpts.VectorizeBB;
+  PMBuilder.SLPVectorize = CodeGenOpts.VectorizeSLP;
+  PMBuilder.LoopVectorize = CodeGenOpts.VectorizeLoop;
 
   PMBuilder.DisableUnitAtATime = !CodeGenOpts.UnitAtATime;
   PMBuilder.DisableUnrollLoops = !CodeGenOpts.UnrollLoops;