1 ; RUN: opt -irce-print-changed-loops -verify-loop-info -irce -S < %s 2>&1 | FileCheck %s 2 ; 3 ; TODO: new-pm version should be enabled after we decide on branch-probability handling for loop passes 4 ; TODO: opt -irce-print-changed-loops -verify-loop-info -passes='require<branch-prob>,loop(irce)' -S < %s 2>&1 | FileCheck %s 5 6 ; CHECK-NOT: constrained Loop 7 8 define void @low_profiled_be_count(i32 *%arr, i32 *%a_len_ptr, i32 %n) { 9 entry: 10 %len = load i32, i32* %a_len_ptr, !range !0 11 %first.itr.check = icmp sgt i32 %n, 0 12 br i1 %first.itr.check, label %loop, label %exit 13 14 loop: 15 %idx = phi i32 [ 0, %entry ] , [ %idx.next, %in.bounds ] 16 %idx.next = add i32 %idx, 1 17 %abc = icmp slt i32 %idx, %len 18 br i1 %abc, label %in.bounds, label %out.of.bounds, !prof !1 19 20 in.bounds: 21 %addr = getelementptr i32, i32* %arr, i32 %idx 22 store i32 0, i32* %addr 23 %next = icmp slt i32 %idx.next, %n 24 br i1 %next, label %loop, label %exit, !prof !2 25 26 out.of.bounds: 27 ret void 28 29 exit: 30 ret void 31 } 32 33 !0 = !{i32 0, i32 2147483647} 34 !1 = !{!"branch_weights", i32 64, i32 4} 35 !2 = !{!"branch_weights", i32 4, i32 64} 36
