1*9880d681SAndroid Build Coastguard Worker; RUN: opt < %s -instcombine -disable-output 2*9880d681SAndroid Build Coastguard Worker; Checks that bitcasts are not converted into GEP when 3*9880d681SAndroid Build Coastguard Worker; when the size of an aggregate cannot be determined. 4*9880d681SAndroid Build Coastguard Worker%swift.opaque = type opaque 5*9880d681SAndroid Build Coastguard Worker%SQ = type <{ [8 x i8] }> 6*9880d681SAndroid Build Coastguard Worker%Si = type <{ i64 }> 7*9880d681SAndroid Build Coastguard Worker 8*9880d681SAndroid Build Coastguard Worker%V = type <{ <{ %Vs4Int8, %Vs4Int8, %Vs4Int8, %Vs4Int8, %Vs4Int8, %Vs4Int8, %Vs4Int8, %Vs4Int8 }>, %Si, %SQ, %SQ, %Si, %swift.opaque }> 9*9880d681SAndroid Build Coastguard Worker%Vs4Int8 = type <{ i8 }> 10*9880d681SAndroid Build Coastguard Worker%swift.type = type { i64 } 11*9880d681SAndroid Build Coastguard Worker 12*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture readonly, 13*9880d681SAndroid Build Coastguard Workeri64, i32, i1) #8 14*9880d681SAndroid Build Coastguard Worker 15*9880d681SAndroid Build Coastguard Worker@_swift_slowAlloc = external global i8* (i64, i64)* 16*9880d681SAndroid Build Coastguard Worker 17*9880d681SAndroid Build Coastguard Workerdeclare i8* @rt_swift_slowAlloc(i64, i64) 18*9880d681SAndroid Build Coastguard Worker 19*9880d681SAndroid Build Coastguard Workerdefine %swift.opaque* @_TwTkV([24 x i8]* %dest, %swift.opaque* %src, 20*9880d681SAndroid Build Coastguard Worker%swift.type* %bios_boot_params) #0 { 21*9880d681SAndroid Build Coastguard Workerentry: 22*9880d681SAndroid Build Coastguard Worker %0 = bitcast %swift.opaque* %src to %V* 23*9880d681SAndroid Build Coastguard Worker %1 = call noalias i8* @rt_swift_slowAlloc(i64 40, i64 0) #11 24*9880d681SAndroid Build Coastguard Worker %2 = bitcast [24 x i8]* %dest to i8** 25*9880d681SAndroid Build Coastguard Worker store i8* %1, i8** %2, align 8 26*9880d681SAndroid Build Coastguard Worker %3 = bitcast i8* %1 to %V* 27*9880d681SAndroid Build Coastguard Worker %4 = bitcast %V* %3 to i8* 28*9880d681SAndroid Build Coastguard Worker %5 = bitcast %V* %0 to i8* 29*9880d681SAndroid Build Coastguard Worker call void @llvm.memcpy.p0i8.p0i8.i64(i8* %4, i8* %5, i64 40, i32 1, i1 false) 30*9880d681SAndroid Build Coastguard Worker %6 = bitcast %V* %3 to %swift.opaque* 31*9880d681SAndroid Build Coastguard Worker ret %swift.opaque* %6 32*9880d681SAndroid Build Coastguard Worker} 33