; LLVM IR from IOsonata/IOsonata :: src/sensors/ag_icm456x.ll (ZN9AgIcm456x4ReadEtPhi)

; 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: mustprogress uwtable
define dso_local noundef i32 @_ZN9AgIcm456x4ReadEtPhi(ptr noundef nonnull align 8 dereferenceable(420) %0, i16 noundef zeroext %1, ptr noundef %2, i32 noundef %3) #1 align 2 {
  %5 = alloca ptr, align 8
  %6 = alloca i16, align 2
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i8, align 1
  %10 = alloca i8, align 1
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i16 %1, ptr %6, align 2, !tbaa !9
  store ptr %2, ptr %7, align 8, !tbaa !5
  store i32 %3, ptr %8, align 4, !tbaa !11
  %11 = load ptr, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #3
  store i8 124, ptr %9, align 1, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 1, ptr %10) #3
  store i8 0, ptr %10, align 1, !tbaa !13
  %12 = load ptr, ptr %11, align 8, !tbaa !14
  %13 = getelementptr i8, ptr %12, i64 -24
  %14 = load i64, ptr %13, align 8
  %15 = getelementptr inbounds i8, ptr %11, i64 %14
  %16 = load i16, ptr %6, align 2, !tbaa !9
  %17 = call noundef zeroext i16 @_ZL11EndianCvt16t(i16 noundef zeroext %16)
  %18 = load ptr, ptr %15, align 8, !tbaa !14
  %19 = getelementptr inbounds ptr, ptr %18, i64 15
  %20 = load ptr, ptr %19, align 8
  %21 = call noundef zeroext i1 %20(ptr noundef nonnull align 8 dereferenceable(64) %15, ptr noundef %9, i32 noundef 1, i16 noundef zeroext %17)
  store i8 126, ptr %9, align 1, !tbaa !13
  br label %22

22:                                               ; preds = %25, %4
  %23 = load i32, ptr %8, align 4, !tbaa !11
  %24 = icmp sgt i32 %23, 0
  br i1 %24, label %25, label %41

25:                                               ; preds = %22
  %26 = load ptr, ptr %11, align 8, !tbaa !14
  %27 = getelementptr i8, ptr %26, i64 -24
  %28 = load i64, ptr %27, align 8
  %29 = getelementptr inbounds i8, ptr %11, i64 %28
  %30 = load ptr, ptr %29, align 8, !tbaa !14
  %31 = getelementptr inbounds ptr, ptr %30, i64 11
  %32 = load ptr, ptr %31, align 8
  %33 = call noundef zeroext i8 %32(ptr noundef nonnull align 8 dereferenceable(64) %29, ptr noundef %9, i32 noundef 1)
  %34 = load ptr, ptr %7, align 8, !tbaa !5
  store i8 %33, ptr %34, align 1, !tbaa !13
  %35 = load ptr, ptr %7, align 8, !tbaa !5
  %36 = getelementptr inbounds i8, ptr %35, i32 1
  store ptr %36, ptr %7, align 8, !tbaa !5
  %37 = load i32, ptr %8, align 4, !tbaa !11
  %38 = add nsw i32 %37, -1
  store i32 %38, ptr %8, align 4, !tbaa !11
  %39 = load i8, ptr %10, align 1, !tbaa !13
  %40 = add i8 %39, 1
  store i8 %40, ptr %10, align 1, !tbaa !13
  br label %22, !llvm.loop !16

41:                                               ; preds = %22
  %42 = load i8, ptr %10, align 1, !tbaa !13
  %43 = zext i8 %42 to i32
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #3
  ret i32 %43
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare hidden noundef zeroext i16 @_ZL11EndianCvt16t(i16 noundef zeroext) #2

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 = { inlinehint 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 #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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"short", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!7, !7, i64 0}
!14 = !{!15, !15, i64 0}
!15 = !{!"vtable pointer", !8, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"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: 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 range(i32 0, 256) i32 @_ZN9AgIcm456x4ReadEtPhi(ptr noundef nonnull align 8 dereferenceable(420) %0, i16 noundef zeroext %1, ptr nocapture noundef writeonly %2, i32 noundef %3) local_unnamed_addr #1 align 2 {
  %5 = alloca i8, align 1
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %5) #3
  store i8 124, ptr %5, align 1, !tbaa !5
  %6 = load ptr, ptr %0, align 8, !tbaa !8
  %7 = getelementptr i8, ptr %6, i64 -24
  %8 = load i64, ptr %7, align 8
  %9 = getelementptr inbounds i8, ptr %0, i64 %8
  %10 = tail call noundef zeroext i16 @_ZL11EndianCvt16t(i16 noundef zeroext %1)
  %11 = load ptr, ptr %9, align 8, !tbaa !8
  %12 = getelementptr inbounds i8, ptr %11, i64 120
  %13 = load ptr, ptr %12, align 8
  %14 = call noundef zeroext i1 %13(ptr noundef nonnull align 8 dereferenceable(64) %9, ptr noundef nonnull %5, i32 noundef 1, i16 noundef zeroext %10)
  store i8 126, ptr %5, align 1, !tbaa !5
  %15 = icmp sgt i32 %3, 0
  br i1 %15, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %4, %.lr.ph
  %.0710 = phi i32 [ %25, %.lr.ph ], [ %3, %4 ]
  %.089 = phi ptr [ %24, %.lr.ph ], [ %2, %4 ]
  %16 = load ptr, ptr %0, align 8, !tbaa !8
  %17 = getelementptr i8, ptr %16, i64 -24
  %18 = load i64, ptr %17, align 8
  %19 = getelementptr inbounds i8, ptr %0, i64 %18
  %20 = load ptr, ptr %19, align 8, !tbaa !8
  %21 = getelementptr inbounds i8, ptr %20, i64 88
  %22 = load ptr, ptr %21, align 8
  %23 = call noundef zeroext i8 %22(ptr noundef nonnull align 8 dereferenceable(64) %19, ptr noundef nonnull %5, i32 noundef 1)
  store i8 %23, ptr %.089, align 1, !tbaa !5
  %24 = getelementptr inbounds i8, ptr %.089, i64 1
  %25 = add nsw i32 %.0710, -1
  %26 = icmp ugt i32 %.0710, 1
  br i1 %26, label %.lr.ph, label %._crit_edge.loopexit, !llvm.loop !10

._crit_edge.loopexit:                             ; preds = %.lr.ph
  %27 = and i32 %3, 255
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %4
  %.0.lcssa = phi i32 [ 0, %4 ], [ %27, %._crit_edge.loopexit ]
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %5) #3
  ret i32 %.0.lcssa
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare hidden noundef zeroext i16 @_ZL11EndianCvt16t(i16 noundef zeroext) local_unnamed_addr #2

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


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