diff options
| -rw-r--r-- | docs/ReleaseNotes.html | 3 | ||||
| -rw-r--r-- | include/llvm/Transforms/IPO/PassManagerBuilder.h | 3 | ||||
| -rw-r--r-- | lib/Transforms/IPO/PassManagerBuilder.cpp | 12 |
3 files changed, 12 insertions, 6 deletions
diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html index eb12b339a4..fa986a8551 100644 --- a/docs/ReleaseNotes.html +++ b/docs/ReleaseNotes.html @@ -468,9 +468,10 @@ Release Notes</a>.</h1> <p> Loop Vectorizer - We've added a loop vectorizer and we are now able to vectorize small loops. The loop vectorizer is disabled by default and - can be enabled using the <b>-mllvm -vectorize</b> flag. + can be enabled using the <b>-mllvm -vectorize-loops</b> flag. The SIMD vector width can be specified using the flag <b>-mllvm -force-vector-width=4</b>. + The defaule value is <b>0</b> which means auto-select. <br/> We can now vectorize this code: diff --git a/include/llvm/Transforms/IPO/PassManagerBuilder.h b/include/llvm/Transforms/IPO/PassManagerBuilder.h index 47ce90265b..68557bd5f6 100644 --- a/include/llvm/Transforms/IPO/PassManagerBuilder.h +++ b/include/llvm/Transforms/IPO/PassManagerBuilder.h @@ -103,7 +103,8 @@ public: bool DisableSimplifyLibCalls; bool DisableUnitAtATime; bool DisableUnrollLoops; - bool Vectorize; + bool BBVectorize; + bool LoopVectorize; private: /// ExtensionList - This is list of all of the extensions that are registered. diff --git a/lib/Transforms/IPO/PassManagerBuilder.cpp b/lib/Transforms/IPO/PassManagerBuilder.cpp index e3bc94e7e6..2b16e20e56 100644 --- a/lib/Transforms/IPO/PassManagerBuilder.cpp +++ b/lib/Transforms/IPO/PassManagerBuilder.cpp @@ -33,7 +33,10 @@ using namespace llvm; static cl::opt<bool> -RunVectorization("vectorize", cl::desc("Run vectorization passes")); +RunLoopVectorization("vectorize-loops", cl::desc("Run the Loop vectorization passes")); + +static cl::opt<bool> +RunBBVectorization("vectorize", cl::desc("Run the BB vectorization passes")); static cl::opt<bool> UseGVNAfterVectorization("use-gvn-after-vectorization", @@ -52,7 +55,8 @@ PassManagerBuilder::PassManagerBuilder() { DisableSimplifyLibCalls = false; DisableUnitAtATime = false; DisableUnrollLoops = false; - Vectorize = RunVectorization; + BBVectorize = RunBBVectorization; + LoopVectorize = RunLoopVectorization; } PassManagerBuilder::~PassManagerBuilder() { @@ -185,7 +189,7 @@ void PassManagerBuilder::populateModulePassManager(PassManagerBase &MPM) { MPM.add(createLoopIdiomPass()); // Recognize idioms like memset. MPM.add(createLoopDeletionPass()); // Delete dead loops - if (Vectorize) { + if (LoopVectorize) { MPM.add(createLoopVectorizePass()); MPM.add(createLICMPass()); } @@ -208,7 +212,7 @@ void PassManagerBuilder::populateModulePassManager(PassManagerBase &MPM) { addExtensionsToPM(EP_ScalarOptimizerLate, MPM); - if (Vectorize) { + if (BBVectorize) { MPM.add(createBBVectorizePass()); MPM.add(createInstructionCombiningPass()); if (OptLevel > 1 && UseGVNAfterVectorization) |