1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -S -loop-unroll -loop-unroll -verify-dom-info -debug-only=loop-unroll -unroll-peel-max-count=7 2>&1 | FileCheck %s 3; REQUIRES: asserts 4 5declare void @f1() 6declare void @f2() 7 8; Check that we can peel off iterations that make conditions true. 9; The second invocation of loop-unroll will NOT do profile based peeling of 10; remained iterations because the total number of peeled iterations exceeds 11; threashold specified with -unroll-peel-max-count=7. 12define void @test2(i32 %k) !prof !4 { 13; CHECK: Loop Unroll: F[test2] Loop %for.body 14; CHECK: PEELING loop %for.body with iteration count 2! 15; CHECK-NOT: llvm.loop.unroll.disable 16for.body.lr.ph: 17 br label %for.body 18 19for.body: 20 %i.05 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.inc ] 21 %cmp1 = icmp ult i32 %i.05, 2 22 br i1 %cmp1, label %if.then, label %if.else 23 24if.then: 25 call void @f1() 26 br label %for.inc 27 28if.else: 29 call void @f2() 30 br label %for.inc 31 32for.inc: 33 %inc = add nsw i32 %i.05, 1 34 %cmp = icmp slt i32 %inc, %k 35 br i1 %cmp, label %for.body, label %for.end, !llvm.loop !1, !prof !3 36 37for.end: 38 ret void 39} 40 41!1 = distinct !{!1} 42!3 = !{!"branch_weights", i32 8, i32 1} 43!4 = !{!"function_entry_count", i64 1} 44