; LLVM IR from lichen-community-systems/signaletic :: hosts/daisy/vendor/libDaisy/Drivers/STM32H7xx_HAL_Driver/Src (Lock)

; 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"

%struct.COMP_HandleTypeDef = type { ptr, %struct.COMP_InitTypeDef, i32, i32, i32 }
%struct.COMP_InitTypeDef = type { i32, i32, i32, i32, i32, i32, i32, i32 }
%struct.COMP_TypeDef = type { i32 }

; 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
define dso_local i32 @HAL_COMP_Lock(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  store i32 0, ptr %3, align 4, !tbaa !9
  %4 = load ptr, ptr %2, align 8, !tbaa !5
  %5 = icmp eq ptr %4, null
  br i1 %5, label %6, label %7

6:                                                ; preds = %1
  store i32 1, ptr %3, align 4, !tbaa !9
  br label %32

7:                                                ; preds = %1
  %8 = load ptr, ptr %2, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.COMP_HandleTypeDef, ptr %8, i32 0, i32 0
  %10 = load ptr, ptr %9, align 8, !tbaa !11
  %11 = getelementptr inbounds %struct.COMP_TypeDef, ptr %10, i32 0, i32 0
  %12 = load volatile i32, ptr %11, align 4, !tbaa !14
  %13 = zext i32 %12 to i64
  %14 = and i64 %13, 2147483648
  %15 = icmp eq i64 %14, 2147483648
  br i1 %15, label %16, label %17

16:                                               ; preds = %7
  store i32 1, ptr %3, align 4, !tbaa !9
  br label %31

17:                                               ; preds = %7
  %18 = load ptr, ptr %2, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.COMP_HandleTypeDef, ptr %18, i32 0, i32 3
  %20 = load volatile i32, ptr %19, align 4, !tbaa !16
  switch i32 %20, label %27 [
    i32 0, label %21
    i32 1, label %24
  ]

21:                                               ; preds = %17
  %22 = load ptr, ptr %2, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.COMP_HandleTypeDef, ptr %22, i32 0, i32 3
  store volatile i32 16, ptr %23, align 4, !tbaa !16
  br label %30

24:                                               ; preds = %17
  %25 = load ptr, ptr %2, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.COMP_HandleTypeDef, ptr %25, i32 0, i32 3
  store volatile i32 17, ptr %26, align 4, !tbaa !16
  br label %30

27:                                               ; preds = %17
  %28 = load ptr, ptr %2, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.COMP_HandleTypeDef, ptr %28, i32 0, i32 3
  store volatile i32 18, ptr %29, align 4, !tbaa !16
  br label %30

30:                                               ; preds = %27, %24, %21
  br label %31

31:                                               ; preds = %30, %16
  br label %32

32:                                               ; preds = %31, %6
  %33 = load i32, ptr %3, align 4, !tbaa !9
  %34 = icmp eq i32 %33, 0
  br i1 %34, label %35, label %44

35:                                               ; preds = %32
  %36 = load ptr, ptr %2, align 8, !tbaa !5
  %37 = getelementptr inbounds %struct.COMP_HandleTypeDef, ptr %36, i32 0, i32 0
  %38 = load ptr, ptr %37, align 8, !tbaa !11
  %39 = getelementptr inbounds %struct.COMP_TypeDef, ptr %38, i32 0, i32 0
  %40 = load volatile i32, ptr %39, align 4, !tbaa !14
  %41 = zext i32 %40 to i64
  %42 = or i64 %41, 2147483648
  %43 = trunc i64 %42 to i32
  store volatile i32 %43, ptr %39, align 4, !tbaa !14
  br label %44

44:                                               ; preds = %35, %32
  %45 = load i32, ptr %3, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  ret i32 %45
}

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 = !{!12, !6, i64 0}
!12 = !{!"", !6, i64 0, !13, i64 8, !10, i64 40, !10, i64 44, !10, i64 48}
!13 = !{!"", !10, i64 0, !10, i64 4, !10, i64 8, !10, i64 12, !10, i64 16, !10, i64 20, !10, i64 24, !10, i64 28}
!14 = !{!15, !10, i64 0}
!15 = !{!"", !10, i64 0}
!16 = !{!12, !10, i64 44}


; 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: nofree norecurse nounwind uwtable
define dso_local range(i32 0, 2) i32 @HAL_COMP_Lock(ptr noundef %0) local_unnamed_addr #0 {
  %2 = icmp eq ptr %0, null
  br i1 %2, label %11, label %3

3:                                                ; preds = %1
  %4 = load ptr, ptr %0, align 8, !tbaa !5
  %5 = load volatile i32, ptr %4, align 4, !tbaa !12
  %.not = icmp sgt i32 %5, -1
  br i1 %.not, label %6, label %11

6:                                                ; preds = %3
  %7 = getelementptr inbounds i8, ptr %0, i64 44
  %8 = load volatile i32, ptr %7, align 4, !tbaa !14
  %switch.selectcmp = icmp eq i32 %8, 1
  %switch.select = select i1 %switch.selectcmp, i32 17, i32 18
  %switch.selectcmp12 = icmp eq i32 %8, 0
  %switch.select13 = select i1 %switch.selectcmp12, i32 16, i32 %switch.select
  store volatile i32 %switch.select13, ptr %7, align 4, !tbaa !14
  %9 = load volatile i32, ptr %4, align 4, !tbaa !12
  %10 = or i32 %9, -2147483648
  store volatile i32 %10, ptr %4, align 4, !tbaa !12
  br label %11

11:                                               ; preds = %1, %3, %6
  %.010 = phi i32 [ 0, %6 ], [ 1, %1 ], [ 1, %3 ]
  ret i32 %.010
}

attributes #0 = { nofree norecurse 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, !7, i64 0}
!6 = !{!"", !7, i64 0, !10, i64 8, !11, i64 40, !11, i64 44, !11, i64 48}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"", !11, i64 0, !11, i64 4, !11, i64 8, !11, i64 12, !11, i64 16, !11, i64 20, !11, i64 24, !11, i64 28}
!11 = !{!"int", !8, i64 0}
!12 = !{!13, !11, i64 0}
!13 = !{!"", !11, i64 0}
!14 = !{!6, !11, i64 44}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass