| ; RUN: opt -irce-skip-profitability-checks -S -verify-loop-info -passes=irce < %s | FileCheck %s |
| ; RUN: opt -irce-skip-profitability-checks -S -verify-loop-info -passes='require<branch-prob>,irce' < %s | FileCheck %s |
| |
| define void @single_access_no_preloop_no_offset(ptr %arr, ptr %a_len_ptr, i32 %n) { |
| ; CHECK-LABEL: @single_access_no_preloop_no_offset( |
| ; CHECK: main.exit.selector: |
| 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 |
| |
| out.of.bounds: |
| ret void |
| |
| exit: |
| ret void |
| } |
| |
| !0 = !{i32 0, i32 2147483647} |
| !1 = !{!"branch_weights", i32 1, i32 64} |