; Split loop. Save last value. Split value is off by one in this example. ; RUN: opt < %s -loop-index-split -disable-output -stats |& \ ; RUN: grep "loop-index-split" | count 1 @k = external global i32 ; [#uses=2] define void @foobar(i32 %a, i32 %b) { entry: br label %bb bb: ; preds = %cond_next16, %entry %i.01.0 = phi i32 [ 0, %entry ], [ %tmp18, %cond_next16 ] ; [#uses=5] %tsum.18.0 = phi i32 [ 42, %entry ], [ %tsum.013.1, %cond_next16 ] ; [#uses=3] %tmp1 = icmp sgt i32 %i.01.0, 50 ; [#uses=1] br i1 %tmp1, label %cond_true, label %cond_false cond_true: ; preds = %bb %tmp4 = tail call i32 @foo( i32 %i.01.0 ) ; [#uses=1] %tmp6 = add i32 %tmp4, %tsum.18.0 ; [#uses=2] %tmp914 = load i32* @k, align 4 ; [#uses=1] %tmp1015 = icmp eq i32 %tmp914, 0 ; [#uses=1] br i1 %tmp1015, label %cond_next16, label %cond_true13 cond_false: ; preds = %bb %tmp8 = tail call i32 @bar( i32 %i.01.0 ) ; [#uses=0] %tmp9 = load i32* @k, align 4 ; [#uses=1] %tmp10 = icmp eq i32 %tmp9, 0 ; [#uses=1] br i1 %tmp10, label %cond_next16, label %cond_true13 cond_true13: ; preds = %cond_false, %cond_true %tsum.013.0 = phi i32 [ %tmp6, %cond_true ], [ %tsum.18.0, %cond_false ] ; [#uses=1] %tmp15 = tail call i32 @bar( i32 %i.01.0 ) ; [#uses=0] br label %cond_next16 cond_next16: ; preds = %cond_false, %cond_true, %cond_true13 %tsum.013.1 = phi i32 [ %tsum.013.0, %cond_true13 ], [ %tmp6, %cond_true ], [ %tsum.18.0, %cond_false ] ; [#uses=2] %tmp18 = add i32 %i.01.0, 1 ; [#uses=3] %tmp21 = icmp slt i32 %tmp18, 100 ; [#uses=1] br i1 %tmp21, label %bb, label %bb24 bb24: ; preds = %cond_next16 %tmp18.lcssa = phi i32 [ %tmp18, %cond_next16 ] ; [#uses=1] %tsum.013.1.lcssa = phi i32 [ %tsum.013.1, %cond_next16 ] ; [#uses=1] %tmp27 = tail call i32 @t( i32 %tmp18.lcssa, i32 %tsum.013.1.lcssa ) ; [#uses=0] ret void } declare i32 @foo(i32) declare i32 @bar(i32) declare i32 @t(i32, i32)