1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -S -O2 -unroll-runtime=true | FileCheck %s -check-prefix=EPILOG 2*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -S -O2 -unroll-runtime=true -unroll-runtime-epilog=false | FileCheck %s -check-prefix=PROLOG 3*9880d681SAndroid Build Coastguard Worker 4*9880d681SAndroid Build Coastguard Worker; Check runtime unrolling prologue can be promoted by LICM pass. 5*9880d681SAndroid Build Coastguard Worker 6*9880d681SAndroid Build Coastguard Worker; EPILOG: entry: 7*9880d681SAndroid Build Coastguard Worker; EPILOG: %xtraiter 8*9880d681SAndroid Build Coastguard Worker; EPILOG: %lcmp.mod 9*9880d681SAndroid Build Coastguard Worker; EPILOG: loop1: 10*9880d681SAndroid Build Coastguard Worker; EPILOG: br i1 %lcmp.mod 11*9880d681SAndroid Build Coastguard Worker; EPILOG: loop2.epil: 12*9880d681SAndroid Build Coastguard Worker 13*9880d681SAndroid Build Coastguard Worker; PROLOG: entry: 14*9880d681SAndroid Build Coastguard Worker; PROLOG: %xtraiter 15*9880d681SAndroid Build Coastguard Worker; PROLOG: %lcmp.mod 16*9880d681SAndroid Build Coastguard Worker; PROLOG: loop1: 17*9880d681SAndroid Build Coastguard Worker; PROLOG: br i1 %lcmp.mod 18*9880d681SAndroid Build Coastguard Worker; PROLOG: loop2.prol: 19*9880d681SAndroid Build Coastguard Worker 20*9880d681SAndroid Build Coastguard Workerdefine void @unroll(i32 %iter, i32* %addr1, i32* %addr2) nounwind { 21*9880d681SAndroid Build Coastguard Workerentry: 22*9880d681SAndroid Build Coastguard Worker br label %loop1 23*9880d681SAndroid Build Coastguard Worker 24*9880d681SAndroid Build Coastguard Workerloop1: 25*9880d681SAndroid Build Coastguard Worker %iv1 = phi i32 [ 0, %entry ], [ %inc1, %loop1.latch ] 26*9880d681SAndroid Build Coastguard Worker %offset1 = getelementptr i32, i32* %addr1, i32 %iv1 27*9880d681SAndroid Build Coastguard Worker store i32 %iv1, i32* %offset1, align 4 28*9880d681SAndroid Build Coastguard Worker br label %loop2.header 29*9880d681SAndroid Build Coastguard Worker 30*9880d681SAndroid Build Coastguard Workerloop2.header: 31*9880d681SAndroid Build Coastguard Worker %e = icmp uge i32 %iter, 1 32*9880d681SAndroid Build Coastguard Worker br i1 %e, label %loop2, label %exit2 33*9880d681SAndroid Build Coastguard Worker 34*9880d681SAndroid Build Coastguard Workerloop2: 35*9880d681SAndroid Build Coastguard Worker %iv2 = phi i32 [ 0, %loop2.header ], [ %inc2, %loop2 ] 36*9880d681SAndroid Build Coastguard Worker %offset2 = getelementptr i32, i32* %addr2, i32 %iv2 37*9880d681SAndroid Build Coastguard Worker store i32 %iv2, i32* %offset2, align 4 38*9880d681SAndroid Build Coastguard Worker %inc2 = add i32 %iv2, 1 39*9880d681SAndroid Build Coastguard Worker %exitcnd2 = icmp uge i32 %inc2, %iter 40*9880d681SAndroid Build Coastguard Worker br i1 %exitcnd2, label %exit2, label %loop2 41*9880d681SAndroid Build Coastguard Worker 42*9880d681SAndroid Build Coastguard Workerexit2: 43*9880d681SAndroid Build Coastguard Worker br label %loop1.latch 44*9880d681SAndroid Build Coastguard Worker 45*9880d681SAndroid Build Coastguard Workerloop1.latch: 46*9880d681SAndroid Build Coastguard Worker %inc1 = add i32 %iv1, 1 47*9880d681SAndroid Build Coastguard Worker %exitcnd1 = icmp uge i32 %inc1, 1024 48*9880d681SAndroid Build Coastguard Worker br i1 %exitcnd1, label %exit, label %loop1 49*9880d681SAndroid Build Coastguard Worker 50*9880d681SAndroid Build Coastguard Workerexit: 51*9880d681SAndroid Build Coastguard Worker ret void 52*9880d681SAndroid Build Coastguard Worker} 53