1 files changed, 61 insertions, 0 deletions
diff --git a/polly/test/ScopInfo/granularity_scalar-indep_noepilogue.ll b/polly/test/ScopInfo/granularity_scalar-indep_noepilogue.ll
new file mode 100644
index 00000000000..cf438ab0afa
--- /dev/null
+++ b/polly/test/ScopInfo/granularity_scalar-indep_noepilogue.ll
@@ -0,0 +1,61 @@
+; RUN: opt %loadPolly -polly-stmt-granularity=scalar-indep -polly-print-instructions -polly-scops -analyze < %s | FileCheck %s -match-full-lines
+;
+; This case has no explicit epilogue for PHI writes because it would
+; have a scalar dependency to the previous statement.
+;
+; for (int j = 0; j < n; j += 1) {
+; bodyA:
+;   double valA = A[0];
+;   A[0] = valA;
+;
+; bodyB:
+;   phi = valA;
+; }
+;
+define void @func(i32 %n, double* noalias nonnull %A) {
+entry:
+  br label %for
+
+for:
+  %j = phi i32 [0, %entry], [%j.inc, %inc]
+  %j.cmp = icmp slt i32 %j, %n
+  br i1 %j.cmp, label %bodyA, label %exit
+
+    bodyA:
+      %valA = load double, double* %A
+      store double %valA, double* %A
+      br label %bodyB
+
+    bodyB:
+      %phi = phi double [%valA, %bodyA]
+      br label %inc
+
+inc:
+  %j.inc = add nuw nsw i32 %j, 1
+  br label %for
+
+exit:
+  br label %return
+
+return:
+  ret void
+}
+
+
+; CHECK:      Statements {
+; CHECK-NEXT:     Stmt_bodyA
+; CHECK-NEXT:         Domain :=
+; CHECK-NEXT:             [n] -> { Stmt_bodyA[i0] : 0 <= i0 < n };
+; CHECK-NEXT:         Schedule :=
+; CHECK-NEXT:             [n] -> { Stmt_bodyA[i0] -> [i0] };
+; CHECK-NEXT:         ReadAccess :=       [Reduction Type: NONE] [Scalar: 0]
+; CHECK-NEXT:             [n] -> { Stmt_bodyA[i0] -> MemRef_A[0] };
+; CHECK-NEXT:         MustWriteAccess :=  [Reduction Type: NONE] [Scalar: 0]
+; CHECK-NEXT:             [n] -> { Stmt_bodyA[i0] -> MemRef_A[0] };
+; CHECK-NEXT:         MustWriteAccess :=  [Reduction Type: NONE] [Scalar: 1]
+; CHECK-NEXT:             [n] -> { Stmt_bodyA[i0] -> MemRef_phi__phi[] };
+; CHECK-NEXT:         Instructions {
+; CHECK-NEXT:               %valA = load double, double* %A
+; CHECK-NEXT:               store double %valA, double* %A
+; CHECK-NEXT:         }
+; CHECK-NEXT: }