1; RUN: opt -verify-loop-info -passes=irce -irce-print-range-checks -irce-print-changed-loops %s -S 2>&1 | FileCheck %s 2; RUN: opt -verify-loop-info -passes='require<branch-prob>,irce' -irce-print-range-checks -irce-print-changed-loops %s -S 2>&1 | FileCheck %s 3 4; CHECK: irce: loop has 1 inductive range checks: 5; CHECK-NEXT:InductiveRangeCheck: 6; CHECK-NEXT: Begin: %offset Step: 1 End: %len 7; CHECK-NEXT: CheckUse: br i1 %abc, label %in.bounds, label %out.of.bounds, !prof !1 Operand: 0 8; CHECK-NEXT: irce: in function incrementing: constrained Loop at depth 1 containing: %loop<header><exiting>,%in.bounds<latch><exiting> 9 10define void @incrementing(ptr %arr, ptr %a_len_ptr, i32 %n, i32 %offset) { 11 entry: 12 %len = load i32, ptr %a_len_ptr, !range !0 13 %first.itr.check = icmp sgt i32 %n, 0 14 br i1 %first.itr.check, label %loop, label %exit 15 16 loop: 17 %idx = phi i32 [ 0, %entry ] , [ %idx.next, %in.bounds ] 18 %idx.next = add i32 %idx, 1 19 %array.idx = add i32 %idx, %offset 20 %abc = icmp slt i32 %array.idx, %len 21 br i1 %abc, label %in.bounds, label %out.of.bounds, !prof !1 22 23 in.bounds: 24 %addr = getelementptr i32, ptr %arr, i32 %array.idx 25 store i32 0, ptr %addr 26 %next = icmp slt i32 %idx.next, %n 27 br i1 %next, label %loop, label %exit 28 29 out.of.bounds: 30 ret void 31 32 exit: 33 ret void 34} 35 36!0 = !{i32 0, i32 2147483647} 37!1 = !{!"branch_weights", i32 64, i32 4} 38