r359616 - Set LoopInterleaved in the PassManagerBuilder.

[Alina Sbirlea via cfe-commits]

Author: asbirlea
Date: Tue Apr 30 14:29:23 2019
New Revision: 359616

URL: http://llvm.org/viewvc/llvm-project?rev=359616&view=rev
Log:
Set LoopInterleaved in the PassManagerBuilder.

Summary: Corresponds to D61030.

Subscribers: jlebar, cfe-commits, llvm-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D61142

Modified:
    cfe/trunk/lib/CodeGen/BackendUtil.cpp

Modified: cfe/trunk/lib/CodeGen/BackendUtil.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/BackendUtil.cpp?rev=359616&r1=359615&r2=359616&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/BackendUtil.cpp (original)
+++ cfe/trunk/lib/CodeGen/BackendUtil.cpp Tue Apr 30 14:29:23 2019
@@ -560,6 +560,9 @@ void EmitAssemblyHelper::CreatePasses(le
   PMBuilder.LoopVectorize = CodeGenOpts.VectorizeLoop;
 
   PMBuilder.DisableUnrollLoops = !CodeGenOpts.UnrollLoops;
+  // Loop interleaving in the loop vectorizer has historically been set to be
+  // enabled when loop unrolling is enabled.
+  PMBuilder.LoopsInterleaved = CodeGenOpts.UnrollLoops;
   PMBuilder.MergeFunctions = CodeGenOpts.MergeFunctions;
   PMBuilder.PrepareForThinLTO = CodeGenOpts.PrepareForThinLTO;
   PMBuilder.PrepareForLTO = CodeGenOpts.PrepareForLTO;