; LLVM IR from ctlst-tech/catpilot :: bsp/mcu/core/stm32/h753/hal/src (stm32h7xx_hal_pcd)

; 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.PCD_HandleTypeDef = type { ptr, %struct.USB_OTG_CfgTypeDef, i8, [16 x %struct.USB_OTG_EPTypeDef], [16 x %struct.USB_OTG_EPTypeDef], i32, i32, i32, [12 x i32], i32, i32, i32, i32, ptr }
%struct.USB_OTG_CfgTypeDef = type { i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32 }
%struct.USB_OTG_EPTypeDef = type { i8, i8, i8, i8, i8, i8, i16, i32, ptr, i32, i32, i32 }
%struct.USB_OTG_DeviceTypeDef = type { i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, i32, [15 x 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_PCD_SetTestMode(ptr noundef %0, i8 noundef zeroext %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca i8, align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i8 %1, ptr %4, align 1, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.PCD_HandleTypeDef, ptr %7, i32 0, i32 0
  %9 = load ptr, ptr %8, align 8, !tbaa !10
  store ptr %9, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #2
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = ptrtoint ptr %10 to i32
  store i32 %11, ptr %6, align 4, !tbaa !14
  %12 = load i8, ptr %4, align 1, !tbaa !9
  %13 = zext i8 %12 to i32
  switch i32 %13, label %25 [
    i32 1, label %14
    i32 2, label %14
    i32 3, label %14
    i32 4, label %14
    i32 5, label %14
  ]

14:                                               ; preds = %2, %2, %2, %2, %2
  %15 = load i8, ptr %4, align 1, !tbaa !9
  %16 = zext i8 %15 to i32
  %17 = shl i32 %16, 4
  %18 = load i32, ptr %6, align 4, !tbaa !14
  %19 = zext i32 %18 to i64
  %20 = add i64 %19, 2048
  %21 = inttoptr i64 %20 to ptr
  %22 = getelementptr inbounds %struct.USB_OTG_DeviceTypeDef, ptr %21, i32 0, i32 1
  %23 = load volatile i32, ptr %22, align 4, !tbaa !15
  %24 = or i32 %23, %17
  store volatile i32 %24, ptr %22, align 4, !tbaa !15
  br label %26

25:                                               ; preds = %2
  br label %26

26:                                               ; preds = %25, %14
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  ret i32 0
}

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 = !{!7, !7, i64 0}
!10 = !{!11, !6, i64 0}
!11 = !{!"", !6, i64 0, !12, i64 8, !7, i64 60, !7, i64 64, !7, i64 704, !13, i64 1344, !13, i64 1348, !13, i64 1352, !7, i64 1356, !13, i64 1404, !13, i64 1408, !13, i64 1412, !13, i64 1416, !6, i64 1424}
!12 = !{!"", !13, i64 0, !13, i64 4, !13, i64 8, !13, i64 12, !13, i64 16, !13, i64 20, !13, i64 24, !13, i64 28, !13, i64 32, !13, i64 36, !13, i64 40, !13, i64 44, !13, i64 48}
!13 = !{!"int", !7, i64 0}
!14 = !{!13, !13, i64 0}
!15 = !{!16, !13, i64 4}
!16 = !{!"", !13, i64 0, !13, i64 4, !13, i64 8, !13, i64 12, !13, i64 16, !13, i64 20, !13, i64 24, !13, i64 28, !13, i64 32, !13, i64 36, !13, i64 40, !13, i64 44, !13, i64 48, !13, i64 52, !13, i64 56, !13, i64 60, !13, i64 64, !13, i64 68, !7, i64 72, !13, i64 132}


; 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 noundef i32 @HAL_PCD_SetTestMode(ptr nocapture noundef readonly %0, i8 noundef zeroext %1) local_unnamed_addr #0 {
  %.off = add i8 %1, -1
  %switch = icmp ult i8 %.off, 5
  br i1 %switch, label %3, label %14

3:                                                ; preds = %2
  %4 = load ptr, ptr %0, align 8, !tbaa !5
  %5 = ptrtoint ptr %4 to i64
  %6 = shl nuw nsw i8 %1, 4
  %7 = zext nneg i8 %6 to i32
  %8 = and i64 %5, 4294967295
  %9 = add nuw nsw i64 %8, 2048
  %10 = inttoptr i64 %9 to ptr
  %11 = getelementptr inbounds i8, ptr %10, i64 4
  %12 = load volatile i32, ptr %11, align 4, !tbaa !12
  %13 = or i32 %12, %7
  store volatile i32 %13, ptr %11, align 4, !tbaa !12
  br label %14

14:                                               ; preds = %2, %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, !7, i64 0}
!6 = !{!"", !7, i64 0, !10, i64 8, !8, i64 60, !8, i64 64, !8, i64 704, !11, i64 1344, !11, i64 1348, !11, i64 1352, !8, i64 1356, !11, i64 1404, !11, i64 1408, !11, i64 1412, !11, i64 1416, !7, i64 1424}
!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, i64 32, !11, i64 36, !11, i64 40, !11, i64 44, !11, i64 48}
!11 = !{!"int", !8, i64 0}
!12 = !{!13, !11, i64 4}
!13 = !{!"", !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, i64 32, !11, i64 36, !11, i64 40, !11, i64 44, !11, i64 48, !11, i64 52, !11, i64 56, !11, i64 60, !11, i64 64, !11, i64 68, !8, i64 72, !11, i64 132}


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