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1; RUN: opt < %s -passes=gvn -S | FileCheck %s2 3 %struct.INT2 = type { i32, i32 }4@blkshifts = external global ptr ; <ptr> [#uses=2]5 6define i32 @xcompact() {7entry:8 store ptr null, ptr @blkshifts, align 49 br label %bb10 11bb: ; preds = %bb, %entry12 %tmp10 = load ptr, ptr @blkshifts, align 4 ; <ptr> [#uses=0]13; CHECK-NOT: %tmp1014 br label %bb15}16