1; RUN: llc < %s -march=x86 | grep inc | count 1 2 3@X = weak global i16 0 ; <i16*> [#uses=1] 4@Y = weak global i16 0 ; <i16*> [#uses=1] 5 6define void @foo(i32 %N) nounwind { 7entry: 8 %tmp1019 = icmp sgt i32 %N, 0 ; <i1> [#uses=1] 9 br i1 %tmp1019, label %bb, label %return 10 11bb: ; preds = %bb, %entry 12 %i.014.0 = phi i32 [ 0, %entry ], [ %indvar.next, %bb ] ; <i32> [#uses=2] 13 %tmp1 = trunc i32 %i.014.0 to i16 ; <i16> [#uses=2] 14 store volatile i16 %tmp1, i16* @X, align 2 15 %tmp34 = shl i16 %tmp1, 2 ; <i16> [#uses=1] 16 store volatile i16 %tmp34, i16* @Y, align 2 17 %indvar.next = add i32 %i.014.0, 1 ; <i32> [#uses=2] 18 %exitcond = icmp eq i32 %indvar.next, %N ; <i1> [#uses=1] 19 br i1 %exitcond, label %return, label %bb 20 21return: ; preds = %bb, %entry 22 ret void 23} 24