[polly] r232100 - Add -polly-vectorizer=stripmine

[Tobias Grosser]

Author: grosser
Date: Thu Mar 12 15:48:07 2015
New Revision: 232100

URL: http://llvm.org/viewvc/llvm-project?rev=232100&view=rev
Log:
Add -polly-vectorizer=stripmine

By strip-mining outer loops to the innermost level we can enable LLVM's loop
vectorizer to vectorize outer loops.

Modified:
    polly/trunk/include/polly/CodeGen/CodeGeneration.h
    polly/trunk/lib/Support/RegisterPasses.cpp
    polly/trunk/test/ScheduleOptimizer/prevectorization.ll

Modified: polly/trunk/include/polly/CodeGen/CodeGeneration.h
URL: http://llvm.org/viewvc/llvm-project/polly/trunk/include/polly/CodeGen/CodeGeneration.h?rev=232100&r1=232099&r2=232100&view=diff
==============================================================================
--- polly/trunk/include/polly/CodeGen/CodeGeneration.h (original)
+++ polly/trunk/include/polly/CodeGen/CodeGeneration.h Thu Mar 12 15:48:07 2015
@@ -20,6 +20,7 @@
 namespace polly {
 enum VectorizerChoice {
   VECTORIZER_NONE,
+  VECTORIZER_STRIPMINE,
   VECTORIZER_POLLY,
   VECTORIZER_UNROLL_ONLY
 };

Modified: polly/trunk/lib/Support/RegisterPasses.cpp
URL: http://llvm.org/viewvc/llvm-project/polly/trunk/lib/Support/RegisterPasses.cpp?rev=232100&r1=232099&r2=232100&view=diff
==============================================================================
--- polly/trunk/lib/Support/RegisterPasses.cpp (original)
+++ polly/trunk/lib/Support/RegisterPasses.cpp Thu Mar 12 15:48:07 2015
@@ -76,12 +76,15 @@ static cl::opt<CodeGenChoice, true> XCod
 VectorizerChoice polly::PollyVectorizerChoice;
 static cl::opt<polly::VectorizerChoice, true> Vectorizer(
     "polly-vectorizer", cl::desc("Select the vectorization strategy"),
-    cl::values(clEnumValN(polly::VECTORIZER_NONE, "none", "No Vectorization"),
-               clEnumValN(polly::VECTORIZER_POLLY, "polly",
-                          "Polly internal vectorizer"),
-               clEnumValN(polly::VECTORIZER_UNROLL_ONLY, "unroll-only",
-                          "Only grouped unroll the vectorize candidate loops"),
-               clEnumValEnd),
+    cl::values(
+        clEnumValN(polly::VECTORIZER_NONE, "none", "No Vectorization"),
+        clEnumValN(polly::VECTORIZER_POLLY, "polly",
+                   "Polly internal vectorizer"),
+        clEnumValN(polly::VECTORIZER_STRIPMINE, "stripmine",
+                   "Strip-mine outer loops for the loop-vectorizer to trigger"),
+        clEnumValN(polly::VECTORIZER_UNROLL_ONLY, "unroll-only",
+                   "Only grouped unroll the vectorize candidate loops"),
+        clEnumValEnd),
     cl::location(PollyVectorizerChoice), cl::init(polly::VECTORIZER_NONE),
     cl::ZeroOrMore, cl::cat(PollyCategory));
 

Modified: polly/trunk/test/ScheduleOptimizer/prevectorization.ll
URL: http://llvm.org/viewvc/llvm-project/polly/trunk/test/ScheduleOptimizer/prevectorization.ll?rev=232100&r1=232099&r2=232100&view=diff
==============================================================================
--- polly/trunk/test/ScheduleOptimizer/prevectorization.ll (original)
+++ polly/trunk/test/ScheduleOptimizer/prevectorization.ll Thu Mar 12 15:48:07 2015
@@ -1,4 +1,5 @@
 ; RUN: opt -S %loadPolly -polly-detect-unprofitable -basicaa -polly-opt-isl -polly-vectorizer=polly -polly-ast -analyze < %s | FileCheck %s 
+; RUN: opt -S %loadPolly -polly-detect-unprofitable -basicaa -polly-opt-isl -polly-vectorizer=stripmine -polly-ast -analyze < %s | FileCheck %s
 target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
 target triple = "x86_64-unknown-linux-gnu"