| ; RUN: opt -irce-print-changed-loops -verify-loop-info -passes=irce -S < %s 2>&1 | FileCheck %s |
| ; |
| ; TODO: new-pm version should be enabled after we decide on branch-probability handling for loop passes |
| ; TODO: opt -irce-print-changed-loops -verify-loop-info -passes='require<branch-prob>,irce' -S < %s 2>&1 | FileCheck %s |
| |
| ; CHECK-NOT: constrained Loop |
| |
| define void @low_profiled_be_count(ptr %arr, ptr %a_len_ptr, i32 %n) { |
| entry: |
| %len = load i32, ptr %a_len_ptr, !range !0 |
| %first.itr.check = icmp sgt i32 %n, 0 |
| br i1 %first.itr.check, label %loop, label %exit |
| |
| loop: |
| %idx = phi i32 [ 0, %entry ] , [ %idx.next, %in.bounds ] |
| %idx.next = add i32 %idx, 1 |
| %abc = icmp slt i32 %idx, %len |
| br i1 %abc, label %in.bounds, label %out.of.bounds, !prof !1 |
| |
| in.bounds: |
| %addr = getelementptr i32, ptr %arr, i32 %idx |
| store i32 0, ptr %addr |
| %next = icmp slt i32 %idx.next, %n |
| br i1 %next, label %loop, label %exit, !prof !2 |
| |
| out.of.bounds: |
| ret void |
| |
| exit: |
| ret void |
| } |
| |
| !0 = !{i32 0, i32 2147483647} |
| !1 = !{!"branch_weights", i32 64, i32 4} |
| !2 = !{!"branch_weights", i32 4, i32 64} |