diff options
Diffstat (limited to 'llvm/lib/Transforms/IPO/PassManagerBuilder.cpp')
| -rw-r--r-- | llvm/lib/Transforms/IPO/PassManagerBuilder.cpp | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp index a5357387f7d..52fdc737a75 100644 --- a/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp +++ b/llvm/lib/Transforms/IPO/PassManagerBuilder.cpp @@ -96,6 +96,10 @@ static cl::opt<bool> EnableLoopInterchange( "enable-loopinterchange", cl::init(false), cl::Hidden, cl::desc("Enable the new, experimental LoopInterchange Pass")); +static cl::opt<bool> EnableUnrollAndJam("enable-unroll-and-jam", + cl::init(false), cl::Hidden, + cl::desc("Enable Unroll And Jam Pass")); + static cl::opt<bool> EnablePrepareForThinLTO("prepare-for-thinlto", cl::init(false), cl::Hidden, cl::desc("Enable preparation for ThinLTO.")); @@ -669,6 +673,13 @@ void PassManagerBuilder::populateModulePassManager( addInstructionCombiningPass(MPM); if (!DisableUnrollLoops) { + if (EnableUnrollAndJam) { + // Unroll and Jam. We do this before unroll but need to be in a separate + // loop pass manager in order for the outer loop to be processed by + // unroll and jam before the inner loop is unrolled. + MPM.add(createLoopUnrollAndJamPass(OptLevel)); + } + MPM.add(createLoopUnrollPass(OptLevel)); // Unroll small loops // LoopUnroll may generate some redundency to cleanup. |
