+; RUN: opt < %s -ipsccp -S | FileCheck %s
+
+; This transformation is safe for atomic loads and stores; check that it works.
+
+@G = internal global i32 17
+@C = internal constant i32 222
+
+define i32 @test1() {
+ %V = load atomic i32* @G seq_cst, align 4
+ %C = icmp eq i32 %V, 17
+ br i1 %C, label %T, label %F
+T:
+ store atomic i32 17, i32* @G seq_cst, align 4
+ ret i32 %V
+F:
+ store atomic i32 123, i32* @G seq_cst, align 4
+ ret i32 0
+}
+; CHECK: define i32 @test1
+; CHECK-NOT: store
+; CHECK: ret i32 17
+
+define i32 @test2() {
+ %V = load atomic i32* @C seq_cst, align 4
+ ret i32 %V
+}
+
+; CHECK: define i32 @test2
+; CHECK-NOT: load
+; CHECK: ret i32 222
\ No newline at end of file