ScopDetection: Only detect scops that have at least one read and one write

Scops that only read seem generally uninteresting and scops that only write are
most likely initializations where there is also little to optimize.  To not
waste compile time we bail early.

Differential Revision: http://reviews.llvm.org/D7735

llvm-svn: 229820

7 files changed, 10 insertions, 10 deletions

diff --git a/polly/test/DeadCodeElimination/chained_iterations.ll b/polly/test/DeadCodeElimination/chained_iterations.ll
index e7cbe412c30..671950e7de9 100644
--- a/polly/test/DeadCodeElimination/chained_iterations.ll
+++ b/polly/test/DeadCodeElimination/chained_iterations.ll
@@ -1,5 +1,5 @@
-; RUN: opt -S %loadPolly -basicaa -polly-dependences-analysis-type=value-based -polly-ast -analyze -polly-no-early-exit < %s | FileCheck %s
-; RUN: opt -S %loadPolly -basicaa -polly-dependences-analysis-type=value-based -polly-dce -polly-ast -analyze -polly-no-early-exit < %s | FileCheck %s -check-prefix=CHECK-DCE
+; RUN: opt -S %loadPolly -polly-detect-unprofitable -basicaa -polly-dependences-analysis-type=value-based -polly-ast -analyze -polly-no-early-exit < %s | FileCheck %s
+; RUN: opt -S %loadPolly -polly-detect-unprofitable -basicaa -polly-dependences-analysis-type=value-based -polly-dce -polly-ast -analyze -polly-no-early-exit < %s | FileCheck %s -check-prefix=CHECK-DCE
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
 target triple = "x86_64-pc-linux-gnu"
 ;
diff --git a/polly/test/DeadCodeElimination/chained_iterations_2.ll b/polly/test/DeadCodeElimination/chained_iterations_2.ll
index f019a5a749e..6b780ce8c13 100644
--- a/polly/test/DeadCodeElimination/chained_iterations_2.ll
+++ b/polly/test/DeadCodeElimination/chained_iterations_2.ll
@@ -1,5 +1,5 @@
-; RUN: opt -S %loadPolly -basicaa -polly-dependences-analysis-type=value-based -polly-ast -analyze -polly-no-early-exit < %s | FileCheck %s
-; RUN: opt -S %loadPolly -basicaa -polly-dependences-analysis-type=value-based -polly-dce -polly-ast -analyze -polly-no-early-exit < %s | FileCheck %s -check-prefix=CHECK-DCE
+; RUN: opt -S %loadPolly -polly-detect-unprofitable -basicaa -polly-dependences-analysis-type=value-based -polly-ast -analyze -polly-no-early-exit < %s | FileCheck %s
+; RUN: opt -S %loadPolly -polly-detect-unprofitable -basicaa -polly-dependences-analysis-type=value-based -polly-dce -polly-ast -analyze -polly-no-early-exit < %s | FileCheck %s -check-prefix=CHECK-DCE
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
 target triple = "x86_64-pc-linux-gnu"
 ;
diff --git a/polly/test/DeadCodeElimination/computeout.ll b/polly/test/DeadCodeElimination/computeout.ll
index df44b14b4eb..fca5d0c9d2e 100644
--- a/polly/test/DeadCodeElimination/computeout.ll
+++ b/polly/test/DeadCodeElimination/computeout.ll
@@ -1,5 +1,5 @@
-; RUN: opt -S %loadPolly -basicaa -polly-dce -polly-ast -analyze -polly-no-early-exit < %s | FileCheck %s
-; RUN: opt -S %loadPolly -basicaa -polly-dce -polly-ast -analyze -polly-no-early-exit -polly-dependences-computeout=1 < %s | FileCheck %s -check-prefix=TIMEOUT
+; RUN: opt -S %loadPolly -polly-detect-unprofitable -basicaa -polly-dce -polly-ast -analyze -polly-no-early-exit < %s | FileCheck %s
+; RUN: opt -S %loadPolly -polly-detect-unprofitable -basicaa -polly-dce -polly-ast -analyze -polly-no-early-exit -polly-dependences-computeout=1 < %s | FileCheck %s -check-prefix=TIMEOUT
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
 target triple = "x86_64-pc-linux-gnu"
 
diff --git a/polly/test/DeadCodeElimination/dead_iteration_elimination.ll b/polly/test/DeadCodeElimination/dead_iteration_elimination.ll
index e48b14aea2d..e0118ea6020 100644
--- a/polly/test/DeadCodeElimination/dead_iteration_elimination.ll
+++ b/polly/test/DeadCodeElimination/dead_iteration_elimination.ll
@@ -1,4 +1,4 @@
-; RUN: opt -S %loadPolly -basicaa -polly-dependences-analysis-type=value-based -polly-dce -polly-dce-precise-steps=2 -polly-ast -analyze -polly-no-early-exit < %s | FileCheck %s -check-prefix=CHECK
+; RUN: opt -S %loadPolly -polly-detect-unprofitable -basicaa -polly-dependences-analysis-type=value-based -polly-dce -polly-dce-precise-steps=2 -polly-ast -analyze -polly-no-early-exit < %s | FileCheck %s -check-prefix=CHECK
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
 target triple = "x86_64-pc-linux-gnu"
 ;
diff --git a/polly/test/DeadCodeElimination/non-affine-affine-mix.ll b/polly/test/DeadCodeElimination/non-affine-affine-mix.ll
index a645fb029a9..bf0385cab93 100644
--- a/polly/test/DeadCodeElimination/non-affine-affine-mix.ll
+++ b/polly/test/DeadCodeElimination/non-affine-affine-mix.ll
@@ -1,4 +1,4 @@
-; RUN: opt %loadPolly -polly-allow-nonaffine -polly-dce -polly-ast -analyze -polly-no-early-exit < %s | FileCheck %s
+; RUN: opt %loadPolly -polly-detect-unprofitable -polly-allow-nonaffine -polly-dce -polly-ast -analyze -polly-no-early-exit < %s | FileCheck %s
 ;
 ;    void f(int *A) {
 ;      for (int i = 0; i < 1024; i++)
diff --git a/polly/test/DeadCodeElimination/non-affine.ll b/polly/test/DeadCodeElimination/non-affine.ll
index 3a5be1eb41b..ec44070a442 100644
--- a/polly/test/DeadCodeElimination/non-affine.ll
+++ b/polly/test/DeadCodeElimination/non-affine.ll
@@ -1,4 +1,4 @@
-; RUN: opt %loadPolly -polly-allow-nonaffine -polly-dce -polly-ast -analyze -polly-no-early-exit < %s | FileCheck %s
+; RUN: opt %loadPolly -polly-detect-unprofitable -polly-allow-nonaffine -polly-dce -polly-ast -analyze -polly-no-early-exit < %s | FileCheck %s
 ;
 ; CHECK: for (int c0 = 0; c0 <= 1023; c0 += 1)
 ;
diff --git a/polly/test/DeadCodeElimination/null_schedule.ll b/polly/test/DeadCodeElimination/null_schedule.ll
index 7c8f3743273..a71d3ca2df3 100644
--- a/polly/test/DeadCodeElimination/null_schedule.ll
+++ b/polly/test/DeadCodeElimination/null_schedule.ll
@@ -1,4 +1,4 @@
-; RUN: opt -S %loadPolly -basicaa -polly-dependences-analysis-type=value-based -polly-dce -polly-ast -analyze -polly-no-early-exit < %s | FileCheck %s -check-prefix=CHECK-DCE
+; RUN: opt -S %loadPolly -polly-detect-unprofitable -basicaa -polly-dependences-analysis-type=value-based -polly-dce -polly-ast -analyze -polly-no-early-exit < %s | FileCheck %s -check-prefix=CHECK-DCE
 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
 target triple = "x86_64-pc-linux-gnu"
 ; A[0] = 1;