| ; RUN: opt -analyze -enable-new-pm=0 -scalar-evolution < %s | FileCheck %s |
| ; RUN: opt -disable-output "-passes=print<scalar-evolution>" < %s 2>&1 | FileCheck %s |
| |
| define void @f(i1* %condition) { |
| ; CHECK-LABEL: Classifying expressions for: @f |
| entry: |
| br label %loop |
| |
| loop: |
| %idx = phi i32 [ 0, %entry ], [ %idx.inc, %loop ] |
| %idx.inc = add nsw i32 %idx, 1 |
| |
| %idx.inc2 = add i32 %idx.inc, 1 |
| %idx.inc2.zext = zext i32 %idx.inc2 to i64 |
| |
| ; CHECK: %idx.inc2.zext = zext i32 %idx.inc2 to i64 |
| ; CHECK-NEXT: --> {2,+,1}<nuw><%loop> |
| |
| %c = load volatile i1, i1* %condition |
| br i1 %c, label %loop, label %exit |
| |
| exit: |
| ret void |
| } |
| |
| define void @g(i1* %condition) { |
| ; CHECK-LABEL: Classifying expressions for: @g |
| entry: |
| br label %loop |
| |
| loop: |
| %idx = phi i32 [ 0, %entry ], [ %idx.inc, %loop ] |
| %idx.inc = add nsw i32 %idx, 3 |
| |
| %idx.inc2 = add i32 %idx.inc, -1 |
| %idx.inc2.sext = sext i32 %idx.inc2 to i64 |
| ; CHECK: %idx.inc2.sext = sext i32 %idx.inc2 to i64 |
| ; CHECK-NEXT: --> {2,+,3}<nuw><nsw><%loop> |
| |
| %cond.gep = getelementptr inbounds i1, i1* %condition, i32 %idx.inc |
| %c = load volatile i1, i1* %cond.gep |
| br i1 %c, label %loop, label %exit |
| |
| exit: |
| ret void |
| } |