| ; RUN: opt -verify-loop-info -irce-print-changed-loops -irce < %s 2>&1 | FileCheck %s |
| ; |
| ; TODO: new-pm version should be enabled after we decide on branch-probability handling for loop passes |
| ; TODO: opt -verify-loop-info -irce-print-changed-loops -passes='require<branch-prob>,irce' < %s 2>&1 | FileCheck %s |
| |
| ; CHECK-NOT: constrained Loop |
| |
| define void @multiple_access_no_preloop( |
| i32* %arr_a, i32* %a_len_ptr, i32* %arr_b, i32* %b_len_ptr, i32 %n) { |
| |
| entry: |
| %len.a = load i32, i32* %a_len_ptr, !range !0 |
| %len.b = load i32, i32* %b_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.b ] |
| %idx.next = add i32 %idx, 1 |
| %abc.a = icmp slt i32 %idx, %len.a |
| br i1 %abc.a, label %in.bounds.a, label %out.of.bounds, !prof !1 |
| |
| in.bounds.a: |
| %addr.a = getelementptr i32, i32* %arr_a, i32 %idx |
| store i32 0, i32* %addr.a |
| %abc.b = icmp slt i32 %idx, %len.b |
| br i1 %abc.b, label %in.bounds.b, label %out.of.bounds, !prof !1 |
| |
| in.bounds.b: |
| %addr.b = getelementptr i32, i32* %arr_b, i32 %idx |
| store i32 -1, i32* %addr.b |
| %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 1} |