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

; 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.DFSDM_Channel_HandleTypeDef = type { ptr, %struct.DFSDM_Channel_InitTypeDef, i32 }
%struct.DFSDM_Channel_InitTypeDef = type { %struct.DFSDM_Channel_OutputClockTypeDef, %struct.DFSDM_Channel_InputTypeDef, %struct.DFSDM_Channel_SerialInterfaceTypeDef, %struct.DFSDM_Channel_AwdTypeDef, i32, i32 }
%struct.DFSDM_Channel_OutputClockTypeDef = type { i32, i32, i32 }
%struct.DFSDM_Channel_InputTypeDef = type { i32, i32, i32 }
%struct.DFSDM_Channel_SerialInterfaceTypeDef = type { i32, i32 }
%struct.DFSDM_Channel_AwdTypeDef = type { i32, i32 }
%struct.DFSDM_Channel_TypeDef = type { i32, i32, i32, i32, 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_DFSDM_ChannelScdStart(ptr noundef %0, i32 noundef %1, i32 noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  store i32 %2, ptr %6, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  store i32 0, ptr %7, align 4, !tbaa !9
  %8 = load ptr, ptr %4, align 8, !tbaa !5
  %9 = getelementptr inbounds %struct.DFSDM_Channel_HandleTypeDef, ptr %8, i32 0, i32 2
  %10 = load i32, ptr %9, align 8, !tbaa !11
  %11 = icmp ne i32 %10, 1
  br i1 %11, label %12, label %13

12:                                               ; preds = %3
  store i32 1, ptr %7, align 4, !tbaa !9
  br label %40

13:                                               ; preds = %3
  %14 = load ptr, ptr %4, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.DFSDM_Channel_HandleTypeDef, ptr %14, i32 0, i32 0
  %16 = load ptr, ptr %15, align 8, !tbaa !16
  %17 = getelementptr inbounds %struct.DFSDM_Channel_TypeDef, ptr %16, i32 0, i32 2
  %18 = load volatile i32, ptr %17, align 4, !tbaa !17
  %19 = zext i32 %18 to i64
  %20 = and i64 %19, -61696
  %21 = trunc i64 %20 to i32
  store volatile i32 %21, ptr %17, align 4, !tbaa !17
  %22 = load i32, ptr %6, align 4, !tbaa !9
  %23 = shl i32 %22, 12
  %24 = load i32, ptr %5, align 4, !tbaa !9
  %25 = or i32 %23, %24
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = getelementptr inbounds %struct.DFSDM_Channel_HandleTypeDef, ptr %26, i32 0, i32 0
  %28 = load ptr, ptr %27, align 8, !tbaa !16
  %29 = getelementptr inbounds %struct.DFSDM_Channel_TypeDef, ptr %28, i32 0, i32 2
  %30 = load volatile i32, ptr %29, align 4, !tbaa !17
  %31 = or i32 %30, %25
  store volatile i32 %31, ptr %29, align 4, !tbaa !17
  %32 = load ptr, ptr %4, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.DFSDM_Channel_HandleTypeDef, ptr %32, i32 0, i32 0
  %34 = load ptr, ptr %33, align 8, !tbaa !16
  %35 = getelementptr inbounds %struct.DFSDM_Channel_TypeDef, ptr %34, i32 0, i32 0
  %36 = load volatile i32, ptr %35, align 4, !tbaa !19
  %37 = zext i32 %36 to i64
  %38 = or i64 %37, 32
  %39 = trunc i64 %38 to i32
  store volatile i32 %39, ptr %35, align 4, !tbaa !19
  br label %40

40:                                               ; preds = %13, %12
  %41 = load i32, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  ret i32 %41
}

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, !10, i64 56}
!12 = !{!"", !6, i64 0, !13, i64 8, !10, i64 56}
!13 = !{!"", !14, i64 0, !14, i64 12, !15, i64 24, !15, i64 32, !10, i64 40, !10, i64 44}
!14 = !{!"", !10, i64 0, !10, i64 4, !10, i64 8}
!15 = !{!"", !10, i64 0, !10, i64 4}
!16 = !{!12, !6, i64 0}
!17 = !{!18, !10, i64 8}
!18 = !{!"", !10, i64 0, !10, i64 4, !10, i64 8, !10, i64 12, !10, i64 16}
!19 = !{!18, !10, i64 0}


; 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_DFSDM_ChannelScdStart(ptr nocapture noundef readonly %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = getelementptr inbounds i8, ptr %0, i64 56
  %5 = load i32, ptr %4, align 8, !tbaa !5
  %.not = icmp eq i32 %5, 1
  br i1 %.not, label %6, label %17

6:                                                ; preds = %3
  %7 = load ptr, ptr %0, align 8, !tbaa !14
  %8 = getelementptr inbounds i8, ptr %7, i64 8
  %9 = load volatile i32, ptr %8, align 4, !tbaa !15
  %10 = and i32 %9, -61696
  store volatile i32 %10, ptr %8, align 4, !tbaa !15
  %11 = shl i32 %2, 12
  %12 = or i32 %11, %1
  %13 = load volatile i32, ptr %8, align 4, !tbaa !15
  %14 = or i32 %12, %13
  store volatile i32 %14, ptr %8, align 4, !tbaa !15
  %15 = load volatile i32, ptr %7, align 4, !tbaa !17
  %16 = or i32 %15, 32
  store volatile i32 %16, ptr %7, align 4, !tbaa !17
  br label %17

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

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, !12, i64 56}
!6 = !{!"", !7, i64 0, !10, i64 8, !12, i64 56}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"", !11, i64 0, !11, i64 12, !13, i64 24, !13, i64 32, !12, i64 40, !12, i64 44}
!11 = !{!"", !12, i64 0, !12, i64 4, !12, i64 8}
!12 = !{!"int", !8, i64 0}
!13 = !{!"", !12, i64 0, !12, i64 4}
!14 = !{!6, !7, i64 0}
!15 = !{!16, !12, i64 8}
!16 = !{!"", !12, i64 0, !12, i64 4, !12, i64 8, !12, i64 12, !12, i64 16}
!17 = !{!16, !12, i64 0}


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