; LLVM IR from rweather/lightweight-crypto :: src/genavr/algorithm_grain128.ll (Z18test_grain128_coreR4Code)

; 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"

@_ZL14grain128_input = external hidden constant [32 x i8], align 16
@_ZL15grain128_output = external hidden constant [32 x i8], align 16

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z18test_grain128_coreR4Code(ptr noundef nonnull align 8 dereferenceable(200) %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca [32 x i8], align 16
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 32, ptr %3) #5
  %7 = getelementptr inbounds [32 x i8], ptr %3, i64 0, i64 0
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %7, ptr align 16 @_ZL14grain128_input, i64 32, i1 false)
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #5
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %29, %1
  %9 = load i32, ptr %4, align 4, !tbaa !9
  %10 = icmp ult i32 %9, 8
  br i1 %10, label %12, label %11

11:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #5
  br label %32

12:                                               ; preds = %8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #5
  %13 = load i32, ptr %4, align 4, !tbaa !9
  %14 = mul i32 %13, 286331153
  store i32 %14, ptr %5, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  %15 = load i32, ptr %4, align 4, !tbaa !9
  %16 = mul i32 %15, 1431655765
  store i32 %16, ptr %6, align 4, !tbaa !9
  %17 = load ptr, ptr %2, align 8, !tbaa !5
  %18 = getelementptr inbounds [32 x i8], ptr %3, i64 0, i64 0
  %19 = load i32, ptr %5, align 4, !tbaa !9
  %20 = lshr i32 %19, 16
  %21 = and i32 %20, 65535
  %22 = load i32, ptr %5, align 4, !tbaa !9
  %23 = and i32 %22, 65535
  %24 = load i32, ptr %6, align 4, !tbaa !9
  %25 = lshr i32 %24, 16
  %26 = and i32 %25, 65535
  %27 = load i32, ptr %6, align 4, !tbaa !9
  %28 = and i32 %27, 65535
  call void @_ZN4Code16exec_permutationEPvjjjjj(ptr noundef nonnull align 8 dereferenceable(200) %17, ptr noundef %18, i32 noundef 32, i32 noundef %21, i32 noundef %23, i32 noundef %26, i32 noundef %28)
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  br label %29

29:                                               ; preds = %12
  %30 = load i32, ptr %4, align 4, !tbaa !9
  %31 = add i32 %30, 1
  store i32 %31, ptr %4, align 4, !tbaa !9
  br label %8, !llvm.loop !11

32:                                               ; preds = %11
  %33 = getelementptr inbounds [32 x i8], ptr %3, i64 0, i64 0
  %34 = call i32 @memcmp(ptr noundef @_ZL15grain128_output, ptr noundef %33, i64 noundef 32) #6
  %35 = icmp ne i32 %34, 0
  %36 = xor i1 %35, true
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #5
  ret i1 %36
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

declare void @_ZN4Code16exec_permutationEPvjjjjj(ptr noundef nonnull align 8 dereferenceable(200), ptr noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef) #3

; Function Attrs: nounwind willreturn memory(read)
declare i32 @memcmp(ptr noundef, ptr noundef, i64 noundef) #4

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { "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 #4 = { nounwind willreturn memory(read) "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 #5 = { nounwind }
attributes #6 = { nounwind willreturn memory(read) }

!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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


; 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"

@_ZL14grain128_input = external hidden local_unnamed_addr constant [32 x i8], align 16
@_ZL15grain128_output = external hidden constant [32 x i8], align 16

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_Z18test_grain128_coreR4Code(ptr noundef nonnull align 8 dereferenceable(200) %0) local_unnamed_addr #1 {
  %2 = alloca [32 x i8], align 16
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %2) #5
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(32) %2, ptr noundef nonnull align 16 dereferenceable(32) @_ZL14grain128_input, i64 32, i1 false)
  call void @_ZN4Code16exec_permutationEPvjjjjj(ptr noundef nonnull align 8 dereferenceable(200) %0, ptr noundef nonnull %2, i32 noundef 32, i32 noundef 0, i32 noundef 0, i32 noundef 0, i32 noundef 0)
  call void @_ZN4Code16exec_permutationEPvjjjjj(ptr noundef nonnull align 8 dereferenceable(200) %0, ptr noundef nonnull %2, i32 noundef 32, i32 noundef 4369, i32 noundef 4369, i32 noundef 21845, i32 noundef 21845)
  call void @_ZN4Code16exec_permutationEPvjjjjj(ptr noundef nonnull align 8 dereferenceable(200) %0, ptr noundef nonnull %2, i32 noundef 32, i32 noundef 8738, i32 noundef 8738, i32 noundef 43690, i32 noundef 43690)
  call void @_ZN4Code16exec_permutationEPvjjjjj(ptr noundef nonnull align 8 dereferenceable(200) %0, ptr noundef nonnull %2, i32 noundef 32, i32 noundef 13107, i32 noundef 13107, i32 noundef 65535, i32 noundef 65535)
  call void @_ZN4Code16exec_permutationEPvjjjjj(ptr noundef nonnull align 8 dereferenceable(200) %0, ptr noundef nonnull %2, i32 noundef 32, i32 noundef 17476, i32 noundef 17476, i32 noundef 21845, i32 noundef 21844)
  call void @_ZN4Code16exec_permutationEPvjjjjj(ptr noundef nonnull align 8 dereferenceable(200) %0, ptr noundef nonnull %2, i32 noundef 32, i32 noundef 21845, i32 noundef 21845, i32 noundef 43690, i32 noundef 43689)
  call void @_ZN4Code16exec_permutationEPvjjjjj(ptr noundef nonnull align 8 dereferenceable(200) %0, ptr noundef nonnull %2, i32 noundef 32, i32 noundef 26214, i32 noundef 26214, i32 noundef 65535, i32 noundef 65534)
  call void @_ZN4Code16exec_permutationEPvjjjjj(ptr noundef nonnull align 8 dereferenceable(200) %0, ptr noundef nonnull %2, i32 noundef 32, i32 noundef 30583, i32 noundef 30583, i32 noundef 21845, i32 noundef 21843)
  %bcmp = call i32 @bcmp(ptr noundef nonnull dereferenceable(32) @_ZL15grain128_output, ptr noundef nonnull dereferenceable(32) %2, i64 32)
  %.not = icmp eq i32 %bcmp, 0
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %2) #5
  ret i1 %.not
}

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

declare void @_ZN4Code16exec_permutationEPvjjjjj(ptr noundef nonnull align 8 dereferenceable(200), ptr noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #3

; Function Attrs: nofree nounwind willreturn memory(argmem: read)
declare i32 @bcmp(ptr nocapture, ptr nocapture, i64) local_unnamed_addr #4

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress 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 #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { "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 #4 = { nofree nounwind willreturn memory(argmem: read) }
attributes #5 = { 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)"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,SROAPass,SimplifyCFGPass