llvm-6502/test/Transforms/InstCombine/volatile_store.ll

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; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep {volatile store}
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep {volatile load}
@x = weak global i32 0 ; <i32*> [#uses=2]
define void @self_assign_1() {
entry:
%tmp = volatile load i32* @x ; <i32> [#uses=1]
volatile store i32 %tmp, i32* @x
br label %return
return: ; preds = %entry
ret void
}