| ; RUN: opt < %s -loop-reduce -S | FileCheck %s |
| ; rdar://7382068 |
| |
| ; Provide legal integer types. |
| target datalayout = "n8:16:32:64" |
| |
| define void @t(i32 %c) nounwind optsize { |
| entry: |
| br label %bb6 |
| |
| bb1: ; preds = %bb6 |
| %tmp = icmp eq i32 %c_addr.1, 20 ; <i1> [#uses=1] |
| br i1 %tmp, label %bb2, label %bb3 |
| |
| bb2: ; preds = %bb1 |
| %tmp1 = tail call i32 @f20(i32 %c_addr.1) nounwind ; <i32> [#uses=1] |
| br label %bb7 |
| |
| bb3: ; preds = %bb1 |
| %tmp2 = icmp slt i32 %c_addr.1, 10 ; <i1> [#uses=1] |
| %tmp3 = add nsw i32 %c_addr.1, 1 ; <i32> [#uses=1] |
| %tmp4 = add i32 %c_addr.1, -1 ; <i32> [#uses=1] |
| %c_addr.1.be = select i1 %tmp2, i32 %tmp3, i32 %tmp4 ; <i32> [#uses=1] |
| %indvar.next = add i32 %indvar, 1 ; <i32> [#uses=1] |
| ; CHECK: add nsw i32 %lsr.iv, -1 |
| br label %bb6 |
| |
| bb6: ; preds = %bb3, %entry |
| %indvar = phi i32 [ %indvar.next, %bb3 ], [ 0, %entry ] ; <i32> [#uses=2] |
| %c_addr.1 = phi i32 [ %c_addr.1.be, %bb3 ], [ %c, %entry ] ; <i32> [#uses=7] |
| %tmp5 = icmp eq i32 %indvar, 9999 ; <i1> [#uses=1] |
| ; CHECK: icmp eq i32 %lsr.iv, 0 |
| %tmp6 = icmp eq i32 %c_addr.1, 100 ; <i1> [#uses=1] |
| %or.cond = or i1 %tmp5, %tmp6 ; <i1> [#uses=1] |
| br i1 %or.cond, label %bb7, label %bb1 |
| |
| bb7: ; preds = %bb6, %bb2 |
| %c_addr.0 = phi i32 [ %tmp1, %bb2 ], [ %c_addr.1, %bb6 ] ; <i32> [#uses=1] |
| tail call void @bar(i32 %c_addr.0) nounwind |
| ret void |
| } |
| |
| declare i32 @f20(i32) |
| |
| declare void @bar(i32) |
