; LLVM IR from petecoup/argon :: src/primitives (ops)

; 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: inlinehint nounwind uwtable
declare zeroext i8 @ar_max_u8(i8 noundef zeroext, i8 noundef zeroext) #1

; Function Attrs: nounwind uwtable
define dso_local void @ar_stride3_vmaxall_u8_generic(ptr noundef %0, i32 noundef %1, ptr noundef %2) #2 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  store ptr %2, ptr %6, align 8, !tbaa !5
  %8 = load ptr, ptr %6, align 8, !tbaa !5
  %9 = getelementptr inbounds i8, ptr %8, i64 0
  store i8 0, ptr %9, align 1, !tbaa !11
  %10 = load ptr, ptr %6, align 8, !tbaa !5
  %11 = getelementptr inbounds i8, ptr %10, i64 1
  store i8 0, ptr %11, align 1, !tbaa !11
  %12 = load ptr, ptr %6, align 8, !tbaa !5
  %13 = getelementptr inbounds i8, ptr %12, i64 2
  store i8 0, ptr %13, align 1, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  store i32 0, ptr %7, align 4, !tbaa !9
  br label %14

14:                                               ; preds = %55, %3
  %15 = load i32, ptr %7, align 4, !tbaa !9
  %16 = load i32, ptr %5, align 4, !tbaa !9
  %17 = icmp ult i32 %15, %16
  br i1 %17, label %19, label %18

18:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  br label %58

19:                                               ; preds = %14
  %20 = load ptr, ptr %6, align 8, !tbaa !5
  %21 = getelementptr inbounds i8, ptr %20, i64 0
  %22 = load i8, ptr %21, align 1, !tbaa !11
  %23 = load ptr, ptr %4, align 8, !tbaa !5
  %24 = load i32, ptr %7, align 4, !tbaa !9
  %25 = zext i32 %24 to i64
  %26 = getelementptr inbounds i8, ptr %23, i64 %25
  %27 = load i8, ptr %26, align 1, !tbaa !11
  %28 = call zeroext i8 @ar_max_u8(i8 noundef zeroext %22, i8 noundef zeroext %27)
  %29 = load ptr, ptr %6, align 8, !tbaa !5
  %30 = getelementptr inbounds i8, ptr %29, i64 0
  store i8 %28, ptr %30, align 1, !tbaa !11
  %31 = load ptr, ptr %6, align 8, !tbaa !5
  %32 = getelementptr inbounds i8, ptr %31, i64 1
  %33 = load i8, ptr %32, align 1, !tbaa !11
  %34 = load ptr, ptr %4, align 8, !tbaa !5
  %35 = load i32, ptr %7, align 4, !tbaa !9
  %36 = add i32 %35, 1
  %37 = zext i32 %36 to i64
  %38 = getelementptr inbounds i8, ptr %34, i64 %37
  %39 = load i8, ptr %38, align 1, !tbaa !11
  %40 = call zeroext i8 @ar_max_u8(i8 noundef zeroext %33, i8 noundef zeroext %39)
  %41 = load ptr, ptr %6, align 8, !tbaa !5
  %42 = getelementptr inbounds i8, ptr %41, i64 1
  store i8 %40, ptr %42, align 1, !tbaa !11
  %43 = load ptr, ptr %6, align 8, !tbaa !5
  %44 = getelementptr inbounds i8, ptr %43, i64 2
  %45 = load i8, ptr %44, align 1, !tbaa !11
  %46 = load ptr, ptr %4, align 8, !tbaa !5
  %47 = load i32, ptr %7, align 4, !tbaa !9
  %48 = add i32 %47, 2
  %49 = zext i32 %48 to i64
  %50 = getelementptr inbounds i8, ptr %46, i64 %49
  %51 = load i8, ptr %50, align 1, !tbaa !11
  %52 = call zeroext i8 @ar_max_u8(i8 noundef zeroext %45, i8 noundef zeroext %51)
  %53 = load ptr, ptr %6, align 8, !tbaa !5
  %54 = getelementptr inbounds i8, ptr %53, i64 2
  store i8 %52, ptr %54, align 1, !tbaa !11
  br label %55

55:                                               ; preds = %19
  %56 = load i32, ptr %7, align 4, !tbaa !9
  %57 = add i32 %56, 3
  store i32 %57, ptr %7, align 4, !tbaa !9
  br label %14, !llvm.loop !12

58:                                               ; preds = %18
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { inlinehint 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 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 #3 = { 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}
!12 = distinct !{!12, !13}
!13 = !{!"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: inlinehint nounwind uwtable
declare zeroext i8 @ar_max_u8(i8 noundef zeroext, i8 noundef zeroext) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @ar_stride3_vmaxall_u8_generic(ptr nocapture noundef readonly %0, i32 noundef %1, ptr nocapture noundef %2) local_unnamed_addr #1 {
  store i8 0, ptr %2, align 1, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %2, i64 1
  store i8 0, ptr %4, align 1, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %2, i64 2
  store i8 0, ptr %5, align 1, !tbaa !5
  %.not = icmp eq i32 %1, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %3
  ret void

.lr.ph:                                           ; preds = %3, %.lr.ph
  %.017 = phi i32 [ %23, %.lr.ph ], [ 0, %3 ]
  %6 = load i8, ptr %2, align 1, !tbaa !5
  %7 = zext i32 %.017 to i64
  %8 = getelementptr inbounds i8, ptr %0, i64 %7
  %9 = load i8, ptr %8, align 1, !tbaa !5
  %10 = tail call zeroext i8 @ar_max_u8(i8 noundef zeroext %6, i8 noundef zeroext %9)
  store i8 %10, ptr %2, align 1, !tbaa !5
  %11 = load i8, ptr %4, align 1, !tbaa !5
  %12 = add nuw i32 %.017, 1
  %13 = zext i32 %12 to i64
  %14 = getelementptr inbounds i8, ptr %0, i64 %13
  %15 = load i8, ptr %14, align 1, !tbaa !5
  %16 = tail call zeroext i8 @ar_max_u8(i8 noundef zeroext %11, i8 noundef zeroext %15)
  store i8 %16, ptr %4, align 1, !tbaa !5
  %17 = load i8, ptr %5, align 1, !tbaa !5
  %18 = add i32 %.017, 2
  %19 = zext i32 %18 to i64
  %20 = getelementptr inbounds i8, ptr %0, i64 %19
  %21 = load i8, ptr %20, align 1, !tbaa !5
  %22 = tail call zeroext i8 @ar_max_u8(i8 noundef zeroext %17, i8 noundef zeroext %21)
  store i8 %22, ptr %5, align 1, !tbaa !5
  %23 = add i32 %.017, 3
  %24 = icmp ult i32 %23, %1
  br i1 %24, label %.lr.ph, label %._crit_edge, !llvm.loop !8
}

attributes #0 = { inlinehint 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 = { 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 = !{!6, !6, i64 0}
!6 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


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