| ; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py |
| ; RUN: opt < %s -analyze -enable-new-pm=0 -scalar-evolution | FileCheck %s |
| ; RUN: opt < %s -disable-output "-passes=print<scalar-evolution>" 2>&1 | FileCheck %s |
| |
| define void @test() { |
| ; CHECK-LABEL: 'test' |
| ; CHECK-NEXT: Classifying expressions for: @test |
| ; CHECK-NEXT: %tmp = phi i32 [ 2, %bb ], [ %tmp2, %bb3 ] |
| ; CHECK-NEXT: --> %tmp U: [1,-2147483648) S: [0,-2147483648) |
| ; CHECK-NEXT: %tmp2 = add nuw nsw i32 %tmp, 1 |
| ; CHECK-NEXT: --> (1 + %tmp)<nuw> U: [1,-2147483647) S: [1,-2147483647) |
| ; CHECK-NEXT: Determining loop execution counts for: @test |
| ; |
| bb: |
| br label %bb1 |
| |
| bb1: ; preds = %bb3, %bb |
| %tmp = phi i32 [ 2, %bb ], [ %tmp2, %bb3 ] |
| %tmp2 = add nuw nsw i32 %tmp, 1 |
| ret void |
| |
| bb3: ; No predecessors! |
| br label %bb1 |
| } |
