; LLVM IR from rweather/lightweight-crypto :: src/combined (internal-drysponge)

; 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"

; 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: 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) #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

; Function Attrs: nounwind uwtable
define dso_local void @drysponge256_f_absorb(ptr noundef %0, ptr noundef %1, i32 noundef %2) #3 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca [16 x i8], align 16
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !9
  %8 = load i32, ptr %6, align 4, !tbaa !9
  %9 = icmp uge i32 %8, 16
  br i1 %9, label %10, label %13

10:                                               ; preds = %3
  %11 = load ptr, ptr %4, align 8, !tbaa !5
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  call void @drysponge256_mix_phase(ptr noundef %11, ptr noundef %12)
  br label %32

13:                                               ; preds = %3
  call void @llvm.lifetime.start.p0(i64 16, ptr %7) #4
  %14 = getelementptr inbounds [16 x i8], ptr %7, i64 0, i64 0
  %15 = load ptr, ptr %5, align 8, !tbaa !5
  %16 = load i32, ptr %6, align 4, !tbaa !9
  %17 = zext i32 %16 to i64
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %14, ptr align 1 %15, i64 %17, i1 false)
  %18 = load i32, ptr %6, align 4, !tbaa !9
  %19 = zext i32 %18 to i64
  %20 = getelementptr inbounds [16 x i8], ptr %7, i64 0, i64 %19
  store i8 1, ptr %20, align 1, !tbaa !11
  %21 = getelementptr inbounds [16 x i8], ptr %7, i64 0, i64 0
  %22 = load i32, ptr %6, align 4, !tbaa !9
  %23 = zext i32 %22 to i64
  %24 = getelementptr inbounds i8, ptr %21, i64 %23
  %25 = getelementptr inbounds i8, ptr %24, i64 1
  %26 = load i32, ptr %6, align 4, !tbaa !9
  %27 = sub i32 16, %26
  %28 = sub i32 %27, 1
  %29 = zext i32 %28 to i64
  call void @llvm.memset.p0.i64(ptr align 1 %25, i8 0, i64 %29, i1 false)
  %30 = load ptr, ptr %4, align 8, !tbaa !5
  %31 = getelementptr inbounds [16 x i8], ptr %7, i64 0, i64 0
  call void @drysponge256_mix_phase(ptr noundef %30, ptr noundef %31)
  call void @llvm.lifetime.end.p0(i64 16, ptr %7) #4
  br label %32

32:                                               ; preds = %13, %10
  ret void
}

; Function Attrs: nounwind uwtable
declare hidden void @drysponge256_mix_phase(ptr noundef, ptr noundef) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { 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 #4 = { 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!7, !7, i64 0}


; 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"

; 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 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) #1

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

; Function Attrs: nounwind uwtable
define dso_local void @drysponge256_f_absorb(ptr noundef %0, ptr noundef %1, i32 noundef %2) local_unnamed_addr #3 {
  %4 = alloca [16 x i8], align 16
  %5 = icmp ugt i32 %2, 15
  br i1 %5, label %6, label %7

6:                                                ; preds = %3
  tail call void @drysponge256_mix_phase(ptr noundef %0, ptr noundef %1)
  br label %13

7:                                                ; preds = %3
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %4) #4
  %8 = zext nneg i32 %2 to i64
  call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 16 %4, ptr align 1 %1, i64 %8, i1 false)
  %9 = getelementptr inbounds [16 x i8], ptr %4, i64 0, i64 %8
  store i8 1, ptr %9, align 1, !tbaa !5
  %10 = getelementptr inbounds i8, ptr %9, i64 1
  %11 = sub nuw nsw i32 15, %2
  %12 = zext nneg i32 %11 to i64
  call void @llvm.memset.p0.i64(ptr nonnull align 1 %10, i8 0, i64 %12, i1 false)
  call void @drysponge256_mix_phase(ptr noundef %0, ptr noundef nonnull %4)
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #4
  br label %13

13:                                               ; preds = %7, %6
  ret void
}

; Function Attrs: nounwind uwtable
declare hidden void @drysponge256_mix_phase(ptr noundef, ptr noundef) local_unnamed_addr #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { 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 #4 = { 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/C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,TailCallElimPass