1 files changed, 31 insertions, 0 deletions
diff --git a/test/Analysis/GlobalsModRef/func-memattributes.ll b/test/Analysis/GlobalsModRef/func-memattributes.ll
new file mode 100644
index 0000000000000..5494512592e33
--- /dev/null
+++ b/test/Analysis/GlobalsModRef/func-memattributes.ll
@@ -0,0 +1,31 @@
+; RUN: opt < %s -disable-basicaa -globals-aa -dse -S | FileCheck %s
+
+@X = internal global i32 4
+
+define void @test0() {
+; CHECK-LABEL: @test0
+; CHECK: store i32 0, i32* @X
+; CHECK-NEXT: call void @func_readonly() #0
+; CHECK-NEXT: store i32 1, i32* @X
+  store i32 0, i32* @X
+  call void @func_readonly() #0
+  store i32 1, i32* @X
+  ret void
+}
+
+define void @test1() {
+; CHECK-LABEL: @test1
+; CHECK-NOT: store
+; CHECK: call void @func_read_argmem_only() #1
+; CHECK-NEXT: store i32 3, i32* @X
+  store i32 2, i32* @X
+  call void @func_read_argmem_only() #1
+  store i32 3, i32* @X
+  ret void
+}
+
+declare void @func_readonly() #0
+declare void @func_read_argmem_only() #1
+
+attributes #0 = { readonly }
+attributes #1 = { readonly argmemonly }