| Bill Wendling | a08bb49 | 2013-08-22 00:51:19 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -analyze -scalar-evolution -scalar-evolution-max-iterations=0 | FileCheck %s |
| Nick Lewycky | 3934961 | 2007-09-27 14:12:54 +0000 | [diff] [blame] | 2 | ; PR1706 |
| 3 | |
| Bill Wendling | a08bb49 | 2013-08-22 00:51:19 +0000 | [diff] [blame] | 4 | ; CHECK: backedge-taken count is 13 |
| 5 | |
| Nick Lewycky | 3934961 | 2007-09-27 14:12:54 +0000 | [diff] [blame] | 6 | define i32 @f() { |
| 7 | entry: |
| 8 | br label %bb5 |
| 9 | |
| 10 | bb: ; preds = %bb5 |
| 11 | %tmp2 = shl i32 %j.0, 1 ; <i32> [#uses=1] |
| 12 | %tmp4 = add i32 %i.0, 268435456 ; <i32> [#uses=1] |
| 13 | br label %bb5 |
| 14 | |
| 15 | bb5: ; preds = %bb, %entry |
| 16 | %j.0 = phi i32 [ 1, %entry ], [ %tmp2, %bb ] ; <i32> [#uses=2] |
| 17 | %i.0 = phi i32 [ -1879048192, %entry ], [ %tmp4, %bb ] ; <i32> [#uses=2] |
| 18 | %tmp7 = icmp slt i32 %i.0, 1610612736 ; <i1> [#uses=1] |
| 19 | br i1 %tmp7, label %bb, label %return |
| 20 | |
| 21 | return: ; preds = %bb5 |
| 22 | ret i32 %j.0 |
| 23 | } |