Enable prevectorization with -enable-polly-vector.

This removes the separate prevector options for the Pluto and isl scheduler.

llvm-svn: 142774

polly/include/polly/CodeGeneration.h

@@ -0,0 +1,20 @@
+//===------ polly/CodeGeneration.h - The Polly code generator *- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef POLLY_CODEGENERATION_H
+#define POLLY_CODEGENERATION_H
+
+namespace polly {
+  extern bool EnablePollyVector;
+}
+
+#endif
+

polly/lib/CodeGeneration.cpp

@@ -26,6 +26,7 @@
 #include "polly/Support/GICHelper.h"
 #include "polly/Support/ScopHelper.h"
 #include "polly/Cloog.h"
+#include "polly/CodeGeneration.h"
 #include "polly/Dependences.h"
 #include "polly/ScopInfo.h"
 #include "polly/TempScopInfo.h"
@@ -53,11 +54,12 @@ struct isl_set;
 
 namespace polly {
 
-static cl::opt<bool>
+bool EnablePollyVector;
+
+static cl::opt<bool, true>
 Vector("enable-polly-vector",
        cl::desc("Enable polly vector code generation"), cl::Hidden,
-       cl::value_desc("Vector code generation enabled if true"),
-       cl::init(false));
+       cl::location(EnablePollyVector), cl::init(false));
 
 static cl::opt<bool>
 OpenMP("enable-polly-openmp",

polly/lib/Pocc.cpp

@@ -22,6 +22,7 @@
 #ifdef SCOPLIB_FOUND
 #include "polly/ScopInfo.h"
 #include "polly/Dependences.h"
+#include "polly/CodeGeneration.h"
 
 #include "llvm/Support/Path.h"
 #include "llvm/Support/Program.h"
@@ -45,11 +46,6 @@ PlutoTile("enable-pluto-tile",
           cl::desc("Enable pluto tiling for polly"), cl::Hidden,
           cl::value_desc("Pluto tiling enabled if true"),
           cl::init(false));
-static cl::opt<bool>
-PlutoPrevector("enable-pluto-prevector",
-               cl::desc("Enable pluto prevectorization for polly"), cl::Hidden,
-               cl::value_desc("Pluto prevectorization enabled if true"),
-               cl::init(false));
 static cl::opt<std::string>
 PlutoFuse("pluto-fuse",
            cl::desc(""), cl::Hidden,
@@ -127,7 +123,7 @@ bool Pocc::runOnScop(Scop &S) {
   if (PlutoTile)
     arguments.push_back("--pluto-tile");
 
-  if (PlutoPrevector)
+  if (EnablePollyVector)
     arguments.push_back("--pluto-prevector");
 
   arguments.push_back(0);
@@ -164,7 +160,7 @@ bool Pocc::runOnScop(Scop &S) {
   } else
     fclose(poccFile);
 
-  if (!PlutoPrevector)
+  if (!EnablePollyVector)
     return false;
 
   // Find the innermost dimension that is not a constant dimension. This

polly/lib/ScheduleOptimizer.cpp

@@ -20,6 +20,7 @@
 #include "polly/Cloog.h"
 #include "polly/LinkAllPasses.h"
 
+#include "polly/CodeGeneration.h"
 #include "polly/Support/GICHelper.h"
 #include "polly/Dependences.h"
 #include "polly/ScopInfo.h"
@@ -42,12 +43,6 @@ DisableTiling("polly-no-tiling",
 	  cl::desc("Disable tiling in the isl scheduler"), cl::Hidden,
 	  cl::init(false));
 
-static cl::opt<bool>
-Prevector("polly-prevector",
-	  cl::desc("Enable prevectorization in the isl scheduler"), cl::Hidden,
-	  cl::value_desc("Prevectorization enabled"),
-	  cl::init(false));
-
 namespace {
 
   class IslScheduleOptimizer : public ScopPass {
@@ -310,7 +305,7 @@ static isl_union_map *tileBandList(isl_band_list *blist) {
       partialSchedule = isl_union_map_flat_range_product(partialSchedule,
 							 suffixSchedule);
       isl_band_list_free(children);
-    } else if (Prevector) {
+    } else if (EnablePollyVector) {
       isl_map *tileMap;
       isl_union_map *tileUnionMap;
       isl_ctx *ctx;

polly/test/ScheduleOptimizer/2011-08-25-crash_in_vectorizer.ll

@@ -1,5 +1,5 @@
 ; RUN: opt %loadPolly -polly-optimize-isl -polly-cloog -analyze %s -S | FileCheck %s
-; RUN: opt %loadPolly -polly-optimize-isl -polly-cloog -analyze -polly-prevector %s -S | FileCheck %s -check-prefix=VECTOR
+; RUN: opt %loadPolly -polly-optimize-isl -polly-cloog -analyze -enable-polly-vector %s -S | FileCheck %s -check-prefix=VECTOR
 
 
 target datalayout =

polly/www/example_load_Polly_into_clang.html

@@ -35,6 +35,13 @@ also need to add '-mllvm -enable-polly-openmp -lgomp' to your CFLAGS.
 
 <pre class="code">clang -load ${POLLY_BUILD_DIR}/lib/LLVMPolly.so -O3 -mllvm -enable-polly-openmp -lgomp file.c</pre>
 
+<h2>Automatic Vector code generation</h2>
+
+Automatic vector code generation can be enabled by adding '-mllvm
+-enable-polly-vector' to your CFLAGS.
+
+<pre class="code">clang -load ${POLLY_BUILD_DIR}/lib/LLVMPolly.so -O3 -mllvm -enable-polly-vector file.c</pre>
+
 <h2>Further options</h2>
 
 Polly supports further options that are mainly useful for the development or