; LLVM IR from cryspen/libcrux :: sys/hacl/c/src (Hacl_Hash_SHA3)

; 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: nounwind uwtable
declare dso_local void @Hacl_Hash_SHA3_state_permute(ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @Hacl_Hash_SHA3_squeeze0(ptr noundef %0, i32 noundef %1, i32 noundef %2, ptr noundef %3) #1 {
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca ptr, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca ptr, align 8
  %12 = alloca ptr, align 8
  %13 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store i32 %2, ptr %7, align 4, !tbaa !9
  store ptr %3, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #2
  %14 = load i32, ptr %7, align 4, !tbaa !9
  %15 = load i32, ptr %6, align 4, !tbaa !9
  %16 = udiv i32 %14, %15
  store i32 %16, ptr %9, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #2
  %17 = load i32, ptr %7, align 4, !tbaa !9
  %18 = load i32, ptr %6, align 4, !tbaa !9
  %19 = urem i32 %17, %18
  store i32 %19, ptr %10, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #2
  %20 = load ptr, ptr %8, align 8, !tbaa !5
  %21 = load i32, ptr %7, align 4, !tbaa !9
  %22 = zext i32 %21 to i64
  %23 = getelementptr inbounds i8, ptr %20, i64 %22
  %24 = load i32, ptr %10, align 4, !tbaa !9
  %25 = zext i32 %24 to i64
  %26 = sub i64 0, %25
  %27 = getelementptr inbounds i8, ptr %23, i64 %26
  store ptr %27, ptr %11, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #2
  %28 = load ptr, ptr %8, align 8, !tbaa !5
  store ptr %28, ptr %12, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %13) #2
  store i32 0, ptr %13, align 4, !tbaa !9
  br label %29

29:                                               ; preds = %44, %4
  %30 = load i32, ptr %13, align 4, !tbaa !9
  %31 = load i32, ptr %9, align 4, !tbaa !9
  %32 = icmp ult i32 %30, %31
  br i1 %32, label %34, label %33

33:                                               ; preds = %29
  call void @llvm.lifetime.end.p0(i64 4, ptr %13) #2
  br label %47

34:                                               ; preds = %29
  %35 = load i32, ptr %6, align 4, !tbaa !9
  %36 = load ptr, ptr %5, align 8, !tbaa !5
  %37 = load ptr, ptr %12, align 8, !tbaa !5
  %38 = load i32, ptr %13, align 4, !tbaa !9
  %39 = load i32, ptr %6, align 4, !tbaa !9
  %40 = mul i32 %38, %39
  %41 = zext i32 %40 to i64
  %42 = getelementptr inbounds i8, ptr %37, i64 %41
  call void @storeState(i32 noundef %35, ptr noundef %36, ptr noundef %42)
  %43 = load ptr, ptr %5, align 8, !tbaa !5
  call void @Hacl_Hash_SHA3_state_permute(ptr noundef %43)
  br label %44

44:                                               ; preds = %34
  %45 = load i32, ptr %13, align 4, !tbaa !9
  %46 = add i32 %45, 1
  store i32 %46, ptr %13, align 4, !tbaa !9
  br label %29, !llvm.loop !11

47:                                               ; preds = %33
  %48 = load i32, ptr %10, align 4, !tbaa !9
  %49 = load ptr, ptr %5, align 8, !tbaa !5
  %50 = load ptr, ptr %11, align 8, !tbaa !5
  call void @storeState(i32 noundef %48, ptr noundef %49, ptr noundef %50)
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  ret void
}

; Function Attrs: nounwind uwtable
declare hidden void @storeState(i32 noundef, ptr noundef, ptr noundef) #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = !{!"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 = 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"

; Function Attrs: nounwind uwtable
declare dso_local void @Hacl_Hash_SHA3_state_permute(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @Hacl_Hash_SHA3_squeeze0(ptr noundef %0, i32 noundef %1, i32 noundef %2, ptr noundef %3) local_unnamed_addr #0 {
  %.not = icmp ugt i32 %1, %2
  br i1 %.not, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %4
  %5 = udiv i32 %2, %1
  %6 = zext i32 %5 to i64
  br label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %4
  %7 = zext i32 %2 to i64
  %8 = getelementptr inbounds i8, ptr %3, i64 %7
  %9 = urem i32 %2, %1
  %10 = zext i32 %9 to i64
  %11 = sub nsw i64 0, %10
  %12 = getelementptr inbounds i8, ptr %8, i64 %11
  tail call void @storeState(i32 noundef %9, ptr noundef %0, ptr noundef %12)
  ret void

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %.lr.ph ]
  %13 = trunc nuw i64 %indvars.iv to i32
  %14 = mul i32 %13, %1
  %15 = zext i32 %14 to i64
  %16 = getelementptr inbounds i8, ptr %3, i64 %15
  tail call void @storeState(i32 noundef %1, ptr noundef %0, ptr noundef %16)
  tail call void @Hacl_Hash_SHA3_state_permute(ptr noundef %0)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %17 = icmp ult i64 %indvars.iv.next, %6
  br i1 %17, label %.lr.ph, label %._crit_edge, !llvm.loop !5
}

; Function Attrs: nounwind uwtable
declare hidden void @storeState(i32 noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

attributes #0 = { 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" }

!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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass