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-rw-r--r--polly/test/Simplify/redundant_scalarwrite.ll49
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diff --git a/polly/test/Simplify/redundant_scalarwrite.ll b/polly/test/Simplify/redundant_scalarwrite.ll
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+++ b/polly/test/Simplify/redundant_scalarwrite.ll
@@ -0,0 +1,49 @@
+; RUN: opt %loadPolly -polly-import-jscop -polly-import-jscop-postfix=transformed -polly-simplify -analyze < %s | FileCheck %s -match-full-lines
+;
+; Remove redundant scalar stores.
+;
+; for (int j = 0; j < n; j += 1) {
+; bodyA:
+; double val = A[0];
+;
+; bodyB:
+; A[0] = val;
+; }
+;
+define void @redundant_scalarwrite(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:
+ %val = load double, double* %A
+ br label %bodyB
+
+ bodyB:
+ store double %val, double* %A
+ br label %inc
+
+
+inc:
+ %j.inc = add nuw nsw i32 %j, 1
+ br label %for
+
+exit:
+ br label %return
+
+return:
+ ret void
+}
+
+
+; CHECK: Statistics {
+; CHECK: Redundant writes removed: 2
+; CHECK: }
+
+; CHECK: After accesses {
+; CHECK-NEXT: }
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