; LLVM IR from VastoLorde95/Competitive-Programming :: Codeforces/78 Beta Division 1/Problem A/A.ll (Z6rotatev)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@tmp = external dso_local global [10 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_Z6rotatev() #0 {
  %1 = alloca i8, align 1
  call void @llvm.lifetime.start.p0(i64 1, ptr %1) #2
  %2 = load i8, ptr getelementptr inbounds ([10 x i8], ptr @tmp, i64 0, i64 2), align 1, !tbaa !5
  store i8 %2, ptr %1, align 1, !tbaa !5
  %3 = load i8, ptr getelementptr inbounds ([10 x i8], ptr @tmp, i64 0, i64 4), align 1, !tbaa !5
  store i8 %3, ptr getelementptr inbounds ([10 x i8], ptr @tmp, i64 0, i64 2), align 1, !tbaa !5
  %4 = load i8, ptr getelementptr inbounds ([10 x i8], ptr @tmp, i64 0, i64 3), align 1, !tbaa !5
  store i8 %4, ptr getelementptr inbounds ([10 x i8], ptr @tmp, i64 0, i64 4), align 1, !tbaa !5
  %5 = load i8, ptr getelementptr inbounds ([10 x i8], ptr @tmp, i64 0, i64 5), align 1, !tbaa !5
  store i8 %5, ptr getelementptr inbounds ([10 x i8], ptr @tmp, i64 0, i64 3), align 1, !tbaa !5
  %6 = load i8, ptr %1, align 1, !tbaa !5
  store i8 %6, ptr getelementptr inbounds ([10 x i8], ptr @tmp, i64 0, i64 5), align 1, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 1, ptr %1) #2
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@tmp = external dso_local local_unnamed_addr global [10 x i8], align 1

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, argmem: none, inaccessiblemem: none) uwtable
define dso_local void @_Z6rotatev() local_unnamed_addr #0 {
  %1 = load <4 x i8>, ptr getelementptr inbounds (i8, ptr @tmp, i64 2), align 1, !tbaa !5
  %2 = shufflevector <4 x i8> %1, <4 x i8> poison, <4 x i32> <i32 2, i32 3, i32 1, i32 0>
  store <4 x i8> %2, ptr getelementptr inbounds (i8, ptr @tmp, i64 2), align 1, !tbaa !5
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(readwrite, argmem: none, inaccessiblemem: none) uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass