1 ; RUN: opt < %s -instcombine -S | grep {store volatile} 2 ; RUN: opt < %s -instcombine -S | grep {load volatile} 3 4 @x = weak global i32 0 ; <i32*> [#uses=2] 5 6 define void @self_assign_1() { 7 entry: 8 %tmp = volatile load i32* @x ; <i32> [#uses=1] 9 volatile store i32 %tmp, i32* @x 10 br label %return 11 12 return: ; preds = %entry 13 ret void 14 } 15
