1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 5 2; RUN: opt -S -passes=loop-unroll-full -unroll-full-max-count=1 %s | FileCheck %s 3 4@GlobIntONE = global i32 0, align 4 5 6; Make sure we don't reuse the phi (undef, X) for X. 7 8define ptr @test() { 9; CHECK-LABEL: define ptr @test() { 10; CHECK-NEXT: [[ENTRY:.*:]] 11; CHECK-NEXT: br label %[[FOR_BODY_PEEL_BEGIN:.*]] 12; CHECK: [[FOR_BODY_PEEL_BEGIN]]: 13; CHECK-NEXT: br label %[[FOR_BODY_PEEL:.*]] 14; CHECK: [[FOR_BODY_PEEL]]: 15; CHECK-NEXT: br i1 true, label %[[CLEANUP_PEEL:.*]], label %[[CLEANUP_LOOPEXIT_PEEL:.*]] 16; CHECK: [[CLEANUP_LOOPEXIT_PEEL]]: 17; CHECK-NEXT: br label %[[CLEANUP_PEEL]] 18; CHECK: [[CLEANUP_PEEL]]: 19; CHECK-NEXT: [[RETVAL_2_PEEL:%.*]] = phi ptr [ undef, %[[FOR_BODY_PEEL]] ], [ @GlobIntONE, %[[CLEANUP_LOOPEXIT_PEEL]] ] 20; CHECK-NEXT: br i1 true, label %[[FOR_BODY_PEEL_NEXT:.*]], label %[[CLEANUP2:.*]] 21; CHECK: [[FOR_BODY_PEEL_NEXT]]: 22; CHECK-NEXT: br label %[[FOR_BODY_PEEL_NEXT1:.*]] 23; CHECK: [[FOR_BODY_PEEL_NEXT1]]: 24; CHECK-NEXT: br label %[[ENTRY_PEEL_NEWPH:.*]] 25; CHECK: [[ENTRY_PEEL_NEWPH]]: 26; CHECK-NEXT: br label %[[FOR_BODY:.*]] 27; CHECK: [[FOR_BODY]]: 28; CHECK-NEXT: br i1 false, label %[[CLEANUP:.*]], label %[[CLEANUP_LOOPEXIT:.*]] 29; CHECK: [[CLEANUP_LOOPEXIT]]: 30; CHECK-NEXT: br label %[[CLEANUP]] 31; CHECK: [[CLEANUP]]: 32; CHECK-NEXT: br i1 false, label %[[FOR_BODY]], label %[[CLEANUP2_LOOPEXIT:.*]], !llvm.loop [[LOOP0:![0-9]+]] 33; CHECK: [[CLEANUP2_LOOPEXIT]]: 34; CHECK-NEXT: [[RETVAL_2_LCSSA_PH:%.*]] = phi ptr [ @GlobIntONE, %[[CLEANUP]] ] 35; CHECK-NEXT: br label %[[CLEANUP2]] 36; CHECK: [[CLEANUP2]]: 37; CHECK-NEXT: [[RETVAL_2_LCSSA:%.*]] = phi ptr [ [[RETVAL_2_PEEL]], %[[CLEANUP_PEEL]] ], [ [[RETVAL_2_LCSSA_PH]], %[[CLEANUP2_LOOPEXIT]] ] 38; CHECK-NEXT: ret ptr [[RETVAL_2_LCSSA]] 39; 40entry: 41 br label %for.body 42 43for.body: 44 %retval.0 = phi ptr [ undef, %entry ], [ %retval.2, %cleanup ] 45 %cmp1.not = phi i1 [ true, %entry ], [ false, %cleanup ] 46 br i1 %cmp1.not, label %cleanup, label %cleanup.loopexit 47 48cleanup.loopexit: 49 br label %cleanup 50 51cleanup: 52 %retval.2 = phi ptr [ %retval.0, %for.body ], [ @GlobIntONE, %cleanup.loopexit ] 53 br i1 %cmp1.not, label %for.body, label %cleanup2 54 55cleanup2: 56 %retval.2.lcssa = phi ptr [ %retval.2, %cleanup ] 57 ret ptr %retval.2.lcssa 58} 59;. 60; CHECK: [[LOOP0]] = distinct !{[[LOOP0]], [[META1:![0-9]+]]} 61; CHECK: [[META1]] = !{!"llvm.loop.peeled.count", i32 1} 62;. 63