; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt < %s -S -loop-unroll -loop-unroll -verify-dom-info -debug-only=loop-unroll -unroll-peel-max-count=7 2>&1 | FileCheck %s ; REQUIRES: asserts declare void @f1() declare void @f2() ; Check that we can peel off iterations that make conditions true. ; The second invocation of loop-unroll will do profile based peeling of ; remained iterations. define void @test1(i32 %k) !prof !4 { ; CHECK: Loop Unroll: F[test1] Loop %for.body ; CHECK: PEELING loop %for.body with iteration count 2! ; CHECK: PEELING loop %for.body with iteration count 5! ; CHECK: llvm.loop.unroll.disable for.body.lr.ph: br label %for.body for.body: %i.05 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %for.inc ] %cmp1 = icmp ult i32 %i.05, 2 br i1 %cmp1, label %if.then, label %if.else if.then: call void @f1() br label %for.inc if.else: call void @f2() br label %for.inc for.inc: %inc = add nsw i32 %i.05, 1 %cmp = icmp slt i32 %inc, %k br i1 %cmp, label %for.body, label %for.end, !llvm.loop !1, !prof !2 for.end: ret void } !1 = distinct !{!1} !2 = !{!"branch_weights", i32 6, i32 1} !4 = !{!"function_entry_count", i64 1}