1 ; The i induction variable looks like a wrap-around, but it really is just 2 ; a simple affine IV. Make sure that indvars eliminates it. 3 4 ; RUN: opt < %s -indvars -S | grep phi | count 1 5 6 define void @foo() { 7 entry: 8 br label %bb6 9 10 bb6: ; preds = %cond_true, %entry 11 %j.0 = phi i32 [ 1, %entry ], [ %tmp5, %cond_true ] ; <i32> [#uses=3] 12 %i.0 = phi i32 [ 0, %entry ], [ %j.0, %cond_true ] ; <i32> [#uses=1] 13 %tmp7 = call i32 (...)* @foo2( ) ; <i32> [#uses=1] 14 %tmp = icmp ne i32 %tmp7, 0 ; <i1> [#uses=1] 15 br i1 %tmp, label %cond_true, label %return 16 17 cond_true: ; preds = %bb6 18 %tmp2 = call i32 (...)* @bar( i32 %i.0, i32 %j.0 ) ; <i32> [#uses=0] 19 %tmp5 = add i32 %j.0, 1 ; <i32> [#uses=1] 20 br label %bb6 21 22 return: ; preds = %bb6 23 ret void 24 } 25 26 declare i32 @bar(...) 27 28 declare i32 @foo2(...) 29 30
