MemAccess: Reading Change in Access Function

This patch reads the change in access functions from
imported JSCOP file. A test case is also added.

llvm-svn: 134991

6 files changed, 132 insertions, 0 deletions

diff --git a/polly/test/CodeGen/MemAccess/memaccess_simple.c b/polly/test/CodeGen/MemAccess/memaccess_simple.c
new file mode 100644
index 00000000000..b9dd8f00202
--- /dev/null
+++ b/polly/test/CodeGen/MemAccess/memaccess_simple.c
@@ -0,0 +1,17 @@
+int A[100];
+int B[100];
+
+int memaccess_simple()
+{
+  int i, j;
+  for (i = 0; i < 12; i++) {
+      A[i] = i;
+  }
+
+  for (i = 0; i < 12; i++) {
+      B[i] = i;
+  }
+
+  return 0;
+}
+
diff --git a/polly/test/CodeGen/MemAccess/memaccess_simple.ll b/polly/test/CodeGen/MemAccess/memaccess_simple.ll
new file mode 100644
index 00000000000..538d86150af
--- /dev/null
+++ b/polly/test/CodeGen/MemAccess/memaccess_simple.ll
@@ -0,0 +1,47 @@
+;RUN: opt %loadPolly -polly-import-jscop -polly-import-jscop-dir=`dirname %s` -polly-import-jscop-postfix=transformed -stats %s 2>&1  | FileCheck %s
+; ModuleID = 'memaccess_simple.ll'
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32"
+target triple = "i386-pc-linux-gnu"
+
+@A = common global [100 x i32] zeroinitializer, align 4
+@B = common global [100 x i32] zeroinitializer, align 4
+
+define i32 @memaccess_simple() nounwind {
+entry:
+  br label %for.cond
+
+for.cond:                                         ; preds = %for.inc, %entry
+  %0 = phi i32 [ 0, %entry ], [ %inc, %for.inc ]
+  %arrayidx = getelementptr [100 x i32]* @A, i32 0, i32 %0
+  %exitcond1 = icmp ne i32 %0, 12
+  br i1 %exitcond1, label %for.body, label %for.end
+
+for.body:                                         ; preds = %for.cond
+  store i32 %0, i32* %arrayidx
+  br label %for.inc
+
+for.inc:                                          ; preds = %for.body
+  %inc = add nsw i32 %0, 1
+  br label %for.cond
+
+for.end:                                          ; preds = %for.cond
+  br label %for.cond4
+
+for.cond4:                                        ; preds = %for.inc11, %for.end
+  %1 = phi i32 [ 0, %for.end ], [ %inc13, %for.inc11 ]
+  %arrayidx10 = getelementptr [100 x i32]* @B, i32 0, i32 %1
+  %exitcond = icmp ne i32 %1, 12
+  br i1 %exitcond, label %for.body7, label %for.end14
+
+for.body7:                                        ; preds = %for.cond4
+  store i32 %1, i32* %arrayidx10
+  br label %for.inc11
+
+for.inc11:                                        ; preds = %for.body7
+  %inc13 = add nsw i32 %1, 1
+  br label %for.cond4
+
+for.end14:                                        ; preds = %for.cond4
+  ret i32 0
+}
+; CHECK: 2 polly-import-jscop
diff --git a/polly/test/CodeGen/MemAccess/memaccess_simple___%for.cond---%for.end.jscop b/polly/test/CodeGen/MemAccess/memaccess_simple___%for.cond---%for.end.jscop
new file mode 100644
index 00000000000..ccee1cbde12
--- /dev/null
+++ b/polly/test/CodeGen/MemAccess/memaccess_simple___%for.cond---%for.end.jscop
@@ -0,0 +1,17 @@
+{
+   "context" : "{ [] }",
+   "name" : "for.cond => for.end",
+   "statements" : [
+      {
+         "accesses" : [
+            {
+               "kind" : "write",
+               "relation" : "{ Stmt_for_body[i0] -> MemRef_A[i0] }"
+            }
+         ],
+         "domain" : "{ Stmt_for_body[i0] : i0 >= 0 and i0 <= 11 }",
+         "name" : "Stmt_for_body",
+         "schedule" : "{ Stmt_for_body[i0] -> scattering[0, i0, 0] }"
+      }
+   ]
+}
diff --git a/polly/test/CodeGen/MemAccess/memaccess_simple___%for.cond---%for.end.jscop.transformed b/polly/test/CodeGen/MemAccess/memaccess_simple___%for.cond---%for.end.jscop.transformed
new file mode 100644
index 00000000000..a9853bd2bd8
--- /dev/null
+++ b/polly/test/CodeGen/MemAccess/memaccess_simple___%for.cond---%for.end.jscop.transformed
@@ -0,0 +1,17 @@
+{
+   "context" : "{ [] }",
+   "name" : "for.cond => for.end",
+   "statements" : [
+      {
+         "accesses" : [
+            {
+               "kind" : "write",
+               "relation" : "{ Stmt_for_body[i0] -> MemRef_A[0] }"
+            }
+         ],
+         "domain" : "{ Stmt_for_body[i0] : i0 >= 0 and i0 <= 11 }",
+         "name" : "Stmt_for_body",
+         "schedule" : "{ Stmt_for_body[i0] -> scattering[0, i0, 0] }"
+      }
+   ]
+}
diff --git a/polly/test/CodeGen/MemAccess/memaccess_simple___%for.cond4---%for.end14.jscop b/polly/test/CodeGen/MemAccess/memaccess_simple___%for.cond4---%for.end14.jscop
new file mode 100644
index 00000000000..0794c01dce7
--- /dev/null
+++ b/polly/test/CodeGen/MemAccess/memaccess_simple___%for.cond4---%for.end14.jscop
@@ -0,0 +1,17 @@
+{
+   "context" : "{ [] }",
+   "name" : "for.cond4 => for.end14",
+   "statements" : [
+      {
+         "accesses" : [
+            {
+               "kind" : "write",
+               "relation" : "{ Stmt_for_body7[i0] -> MemRef_B[i0] }"
+            }
+         ],
+         "domain" : "{ Stmt_for_body7[i0] : i0 >= 0 and i0 <= 11 }",
+         "name" : "Stmt_for_body7",
+         "schedule" : "{ Stmt_for_body7[i0] -> scattering[0, i0, 0] }"
+      }
+   ]
+}
diff --git a/polly/test/CodeGen/MemAccess/memaccess_simple___%for.cond4---%for.end14.jscop.transformed b/polly/test/CodeGen/MemAccess/memaccess_simple___%for.cond4---%for.end14.jscop.transformed
new file mode 100644
index 00000000000..5df6c367512
--- /dev/null
+++ b/polly/test/CodeGen/MemAccess/memaccess_simple___%for.cond4---%for.end14.jscop.transformed
@@ -0,0 +1,17 @@
+{
+   "context" : "{ [] }",
+   "name" : "for.cond4 => for.end14",
+   "statements" : [
+      {
+         "accesses" : [
+            {
+               "kind" : "write",
+               "relation" : "{ Stmt_for_body7[i0] -> MemRef_B[0] }"
+            }
+         ],
+         "domain" : "{ Stmt_for_body7[i0] : i0 >= 0 and i0 <= 11 }",
+         "name" : "Stmt_for_body7",
+         "schedule" : "{ Stmt_for_body7[i0] -> scattering[0, i0, 0] }"
+      }
+   ]
+}