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Remove the run-slp-after-loop-vectorization option.

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It's been on by default for 4 years and cleans up the pass
hierarchy.

llvm-svn: 358548
This commit is contained in:
Eric Christopher 2019-04-17 02:26:27 +00:00
parent 71d1cca7ef
commit d4ad193fba
1 changed files with 3 additions and 12 deletions
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15
lib/Transforms/IPO/PassManagerBuilder.cpp
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@ -72,12 +72,6 @@ RunLoopRerolling("reroll-loops", cl::Hidden,
static cl::opt<bool> RunNewGVN("enable-newgvn", cl::init(false), cl::Hidden,
cl::desc("Run the NewGVN pass"));
static cl::opt<bool>
RunSLPAfterLoopVectorization("run-slp-after-loop-vectorization",
cl::init(true), cl::Hidden,
cl::desc("Run the SLP vectorizer (and BB vectorizer) after the Loop "
"vectorizer instead of before"));
// Experimental option to use CFL-AA
enum class CFLAAType { None, Steensgaard, Andersen, Both };
static cl::opt<CFLAAType>
@ -425,8 +419,6 @@ void PassManagerBuilder::addFunctionSimplificationPasses(
if (RerollLoops)
MPM.add(createLoopRerollPass());
if (!RunSLPAfterLoopVectorization && SLPVectorize)
MPM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains.
MPM.add(createAggressiveDCEPass()); // Delete dead instructions
MPM.add(createCFGSimplificationPass()); // Merge & remove BBs
@ -715,7 +707,7 @@ void PassManagerBuilder::populateModulePassManager(
// before SLP vectorization.
MPM.add(createCFGSimplificationPass(1, true, true, false, true));
if (RunSLPAfterLoopVectorization && SLPVectorize) {
if (SLPVectorize) {
MPM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains.
if (OptLevel > 1 && ExtraVectorizerPasses) {
MPM.add(createEarlyCSEPass());
@ -948,9 +940,8 @@ void PassManagerBuilder::addLTOOptimizationPasses(legacy::PassManagerBase &PM) {
PM.add(createBitTrackingDCEPass());
// More scalar chains could be vectorized due to more alias information
if (RunSLPAfterLoopVectorization)
if (SLPVectorize)
PM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains.
if (SLPVectorize)
PM.add(createSLPVectorizerPass()); // Vectorize parallel scalar chains.
// After vectorization, assume intrinsics may tell us more about pointer
// alignments.