1 ; RUN: opt < %s -loop-reduce -S | FileCheck %s 2 ; rdar://7382068 3 4 ; Provide legal integer types. 5 target datalayout = "n8:16:32:64" 6 7 define void @t(i32 %c) nounwind optsize { 8 entry: 9 br label %bb6 10 11 bb1: ; preds = %bb6 12 %tmp = icmp eq i32 %c_addr.1, 20 ; <i1> [#uses=1] 13 br i1 %tmp, label %bb2, label %bb3 14 15 bb2: ; preds = %bb1 16 %tmp1 = tail call i32 @f20(i32 %c_addr.1) nounwind ; <i32> [#uses=1] 17 br label %bb7 18 19 bb3: ; preds = %bb1 20 %tmp2 = icmp slt i32 %c_addr.1, 10 ; <i1> [#uses=1] 21 %tmp3 = add nsw i32 %c_addr.1, 1 ; <i32> [#uses=1] 22 %tmp4 = add i32 %c_addr.1, -1 ; <i32> [#uses=1] 23 %c_addr.1.be = select i1 %tmp2, i32 %tmp3, i32 %tmp4 ; <i32> [#uses=1] 24 %indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1] 25 ; CHECK: add nsw i32 %lsr.iv, -1 26 br label %bb6 27 28 bb6: ; preds = %bb3, %entry 29 %indvar = phi i32 [ %indvar.next, %bb3 ], [ 0, %entry ] ; <i32> [#uses=2] 30 %c_addr.1 = phi i32 [ %c_addr.1.be, %bb3 ], [ %c, %entry ] ; <i32> [#uses=7] 31 %tmp5 = icmp eq i32 %indvar, 9999 ; <i1> [#uses=1] 32 ; CHECK: icmp eq i32 %lsr.iv, 0 33 %tmp6 = icmp eq i32 %c_addr.1, 100 ; <i1> [#uses=1] 34 %or.cond = or i1 %tmp5, %tmp6 ; <i1> [#uses=1] 35 br i1 %or.cond, label %bb7, label %bb1 36 37 bb7: ; preds = %bb6, %bb2 38 %c_addr.0 = phi i32 [ %tmp1, %bb2 ], [ %c_addr.1, %bb6 ] ; <i32> [#uses=1] 39 tail call void @bar(i32 %c_addr.0) nounwind 40 ret void 41 } 42 43 declare i32 @f20(i32) 44 45 declare void @bar(i32) 46
