Update to LLVM 3.5a.
Change-Id: Ifadecab779f128e62e430c2b4f6ddd84953ed617
diff --git a/lib/Transforms/IPO/PassManagerBuilder.cpp b/lib/Transforms/IPO/PassManagerBuilder.cpp
index 24c5018..4a28b34 100644
--- a/lib/Transforms/IPO/PassManagerBuilder.cpp
+++ b/lib/Transforms/IPO/PassManagerBuilder.cpp
@@ -17,7 +17,7 @@
#include "llvm-c/Transforms/PassManagerBuilder.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Analysis/Passes.h"
-#include "llvm/Analysis/Verifier.h"
+#include "llvm/IR/Verifier.h"
#include "llvm/PassManager.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ManagedStatic.h"
@@ -33,11 +33,6 @@
cl::desc("Run the Loop vectorization passes"));
static cl::opt<bool>
-LateVectorization("late-vectorize", cl::init(true), cl::Hidden,
- cl::desc("Run the vectorization pasess late in the pass "
- "pipeline (after the inliner)"));
-
-static cl::opt<bool>
RunSLPVectorization("vectorize-slp", cl::Hidden,
cl::desc("Run the SLP vectorization passes"));
@@ -68,7 +63,6 @@
BBVectorize = RunBBVectorization;
SLPVectorize = RunSLPVectorization;
LoopVectorize = RunLoopVectorization;
- LateVectorize = LateVectorization;
RerollLoops = RunLoopRerolling;
}
@@ -200,11 +194,8 @@
MPM.add(createLoopIdiomPass()); // Recognize idioms like memset.
MPM.add(createLoopDeletionPass()); // Delete dead loops
- if (!LateVectorize && LoopVectorize)
- MPM.add(createLoopVectorizePass(DisableUnrollLoops));
-
if (!DisableUnrollLoops)
- MPM.add(createLoopUnrollPass()); // Unroll small loops
+ MPM.add(createSimpleLoopUnrollPass()); // Unroll small loops
addExtensionsToPM(EP_LoopOptimizerEnd, MPM);
if (OptLevel > 1)
@@ -243,21 +234,21 @@
MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
MPM.add(createInstructionCombiningPass()); // Clean up after everything.
- // As an experimental mode, run any vectorization passes in a separate
- // pipeline from the CGSCC pass manager that runs iteratively with the
- // inliner.
- if (LateVectorize && LoopVectorize) {
- // FIXME: This is a HACK! The inliner pass above implicitly creates a CGSCC
- // pass manager that we are specifically trying to avoid. To prevent this
- // we must insert a no-op module pass to reset the pass manager.
- MPM.add(createBarrierNoopPass());
+ // FIXME: This is a HACK! The inliner pass above implicitly creates a CGSCC
+ // pass manager that we are specifically trying to avoid. To prevent this
+ // we must insert a no-op module pass to reset the pass manager.
+ MPM.add(createBarrierNoopPass());
+ MPM.add(createLoopVectorizePass(DisableUnrollLoops, LoopVectorize));
+ // FIXME: Because of #pragma vectorize enable, the passes below are always
+ // inserted in the pipeline, even when the vectorizer doesn't run (ex. when
+ // on -O1 and no #pragma is found). Would be good to have these two passes
+ // as function calls, so that we can only pass them when the vectorizer
+ // changed the code.
+ MPM.add(createInstructionCombiningPass());
+ MPM.add(createCFGSimplificationPass());
- // Add the various vectorization passes and relevant cleanup passes for
- // them since we are no longer in the middle of the main scalar pipeline.
- MPM.add(createLoopVectorizePass(DisableUnrollLoops));
- MPM.add(createInstructionCombiningPass());
- MPM.add(createCFGSimplificationPass());
- }
+ if (!DisableUnrollLoops)
+ MPM.add(createLoopUnrollPass()); // Unroll small loops
if (!DisableUnitAtATime) {
// FIXME: We shouldn't bother with this anymore.
@@ -343,6 +334,9 @@
// Nuke dead stores.
PM.add(createDeadStoreEliminationPass());
+ // More loops are countable try to vectorize them.
+ PM.add(createLoopVectorizePass(true, true));
+
// Cleanup and simplify the code after the scalar optimizations.
PM.add(createInstructionCombiningPass());