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

; 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.WWDG_HandleTypeDef = type { ptr, %struct.WWDG_InitTypeDef }
%struct.WWDG_InitTypeDef = type { i32, i32, i32, i32 }
%struct.WWDG_TypeDef = type { i32, i32, i32 }

; Function Attrs: nounwind uwtable
define dso_local i32 @HAL_WWDG_Init(ptr noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = icmp eq ptr %4, null
  br i1 %5, label %6, label %7

6:                                                ; preds = %1
  store i32 1, ptr %2, align 4
  br label %38

7:                                                ; preds = %1
  %8 = load ptr, ptr %3, align 8, !tbaa !5
  call void @HAL_WWDG_MspInit(ptr noundef %8)
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = getelementptr inbounds %struct.WWDG_HandleTypeDef, ptr %9, i32 0, i32 1
  %11 = getelementptr inbounds %struct.WWDG_InitTypeDef, ptr %10, i32 0, i32 2
  %12 = load i32, ptr %11, align 8, !tbaa !9
  %13 = zext i32 %12 to i64
  %14 = or i64 128, %13
  %15 = trunc i64 %14 to i32
  %16 = load ptr, ptr %3, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.WWDG_HandleTypeDef, ptr %16, i32 0, i32 0
  %18 = load ptr, ptr %17, align 8, !tbaa !13
  %19 = getelementptr inbounds %struct.WWDG_TypeDef, ptr %18, i32 0, i32 0
  store volatile i32 %15, ptr %19, align 4, !tbaa !14
  %20 = load ptr, ptr %3, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.WWDG_HandleTypeDef, ptr %20, i32 0, i32 1
  %22 = getelementptr inbounds %struct.WWDG_InitTypeDef, ptr %21, i32 0, i32 3
  %23 = load i32, ptr %22, align 4, !tbaa !16
  %24 = load ptr, ptr %3, align 8, !tbaa !5
  %25 = getelementptr inbounds %struct.WWDG_HandleTypeDef, ptr %24, i32 0, i32 1
  %26 = getelementptr inbounds %struct.WWDG_InitTypeDef, ptr %25, i32 0, i32 0
  %27 = load i32, ptr %26, align 8, !tbaa !17
  %28 = or i32 %23, %27
  %29 = load ptr, ptr %3, align 8, !tbaa !5
  %30 = getelementptr inbounds %struct.WWDG_HandleTypeDef, ptr %29, i32 0, i32 1
  %31 = getelementptr inbounds %struct.WWDG_InitTypeDef, ptr %30, i32 0, i32 1
  %32 = load i32, ptr %31, align 4, !tbaa !18
  %33 = or i32 %28, %32
  %34 = load ptr, ptr %3, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.WWDG_HandleTypeDef, ptr %34, i32 0, i32 0
  %36 = load ptr, ptr %35, align 8, !tbaa !13
  %37 = getelementptr inbounds %struct.WWDG_TypeDef, ptr %36, i32 0, i32 1
  store volatile i32 %33, ptr %37, align 4, !tbaa !19
  store i32 0, ptr %2, align 4
  br label %38

38:                                               ; preds = %7, %6
  %39 = load i32, ptr %2, align 4
  ret i32 %39
}

; Function Attrs: nounwind uwtable
declare dso_local void @HAL_WWDG_MspInit(ptr noundef) #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 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !12, i64 16}
!10 = !{!"", !6, i64 0, !11, i64 8}
!11 = !{!"", !12, i64 0, !12, i64 4, !12, i64 8, !12, i64 12}
!12 = !{!"int", !7, i64 0}
!13 = !{!10, !6, i64 0}
!14 = !{!15, !12, i64 0}
!15 = !{!"", !12, i64 0, !12, i64 4, !12, i64 8}
!16 = !{!10, !12, i64 20}
!17 = !{!10, !12, i64 8}
!18 = !{!10, !12, i64 12}
!19 = !{!15, !12, i64 4}


; 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
define dso_local range(i32 0, 2) i32 @HAL_WWDG_Init(ptr noundef %0) local_unnamed_addr #0 {
  %2 = icmp eq ptr %0, null
  br i1 %2, label %17, label %3

3:                                                ; preds = %1
  tail call void @HAL_WWDG_MspInit(ptr noundef nonnull %0)
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  %5 = getelementptr inbounds i8, ptr %0, i64 16
  %6 = load i32, ptr %5, align 8, !tbaa !5
  %7 = or i32 %6, 128
  %8 = load ptr, ptr %0, align 8, !tbaa !12
  store volatile i32 %7, ptr %8, align 4, !tbaa !13
  %9 = getelementptr inbounds i8, ptr %0, i64 20
  %10 = load i32, ptr %9, align 4, !tbaa !15
  %11 = load i32, ptr %4, align 8, !tbaa !16
  %12 = or i32 %11, %10
  %13 = getelementptr inbounds i8, ptr %0, i64 12
  %14 = load i32, ptr %13, align 4, !tbaa !17
  %15 = or i32 %12, %14
  %16 = getelementptr inbounds i8, ptr %8, i64 4
  store volatile i32 %15, ptr %16, align 4, !tbaa !18
  br label %17

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

; Function Attrs: nounwind uwtable
declare dso_local void @HAL_WWDG_MspInit(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 = !{!6, !11, i64 16}
!6 = !{!"", !7, i64 0, !10, i64 8}
!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 = !{!"int", !8, i64 0}
!12 = !{!6, !7, i64 0}
!13 = !{!14, !11, i64 0}
!14 = !{!"", !11, i64 0, !11, i64 4, !11, i64 8}
!15 = !{!6, !11, i64 20}
!16 = !{!6, !11, i64 8}
!17 = !{!6, !11, i64 12}
!18 = !{!14, !11, i64 4}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InstCombinePass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass