| ; 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 i32 @slt_trip_count_with_range(i32 *%ptr0, i32 *%ptr1) { |
| ; CHECK-LABEL: slt_trip_count_with_range |
| entry: |
| %limit = load i32, i32* %ptr0, !range !0 |
| br label %loop |
| |
| loop: |
| ; CHECK: Loop %loop: max backedge-taken count is 98 |
| %index = phi i32 [ 0, %entry ], [ %index.inc, %loop ] |
| %index.inc = add i32 %index, 1 |
| %continue = icmp slt i32 %index.inc, %limit |
| br i1 %continue, label %loop, label %loop.exit |
| |
| loop.exit: |
| ret i32 0 |
| } |
| |
| define i32 @ult_trip_count_with_range(i32 *%ptr0, i32 *%ptr1) { |
| ; CHECK-LABEL: ult_trip_count_with_range |
| entry: |
| %limit = load i32, i32* %ptr0, !range !0 |
| br label %loop |
| |
| loop: |
| ; CHECK: Loop %loop: max backedge-taken count is 98 |
| %index = phi i32 [ 0, %entry ], [ %index.inc, %loop ] |
| %index.inc = add i32 %index, 1 |
| %continue = icmp ult i32 %index.inc, %limit |
| br i1 %continue, label %loop, label %loop.exit |
| |
| loop.exit: |
| ret i32 0 |
| } |
| |
| !0 = !{i32 1, i32 100} |