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

; 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.PWR_TypeDef = type { i32, i32, i32, i32, i32, i32, 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_PWREx_GetTemperatureLevel() #1 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #2
  %3 = load volatile i32, ptr getelementptr inbounds (%struct.PWR_TypeDef, ptr inttoptr (i64 1476544512 to ptr), i32 0, i32 2), align 4, !tbaa !5
  %4 = zext i32 %3 to i64
  %5 = and i64 %4, 12582912
  %6 = trunc i64 %5 to i32
  store i32 %6, ptr %2, align 4, !tbaa !10
  %7 = load i32, ptr %2, align 4, !tbaa !10
  %8 = zext i32 %7 to i64
  %9 = icmp eq i64 %8, 4194304
  br i1 %9, label %10, label %11

10:                                               ; preds = %0
  store i32 4194304, ptr %1, align 4, !tbaa !10
  br label %18

11:                                               ; preds = %0
  %12 = load i32, ptr %2, align 4, !tbaa !10
  %13 = zext i32 %12 to i64
  %14 = icmp eq i64 %13, 8388608
  br i1 %14, label %15, label %16

15:                                               ; preds = %11
  store i32 8388608, ptr %1, align 4, !tbaa !10
  br label %17

16:                                               ; preds = %11
  store i32 0, ptr %1, align 4, !tbaa !10
  br label %17

17:                                               ; preds = %16, %15
  br label %18

18:                                               ; preds = %17, %10
  %19 = load i32, ptr %1, align 4, !tbaa !10
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #2
  ret i32 %19
}

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, !7, i64 8}
!6 = !{!"", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !7, i64 16, !7, i64 20, !7, i64 24, !7, i64 28, !7, i64 32, !7, i64 36, !7, i64 40}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!7, !7, 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: mustprogress nofree norecurse nounwind willreturn uwtable
define dso_local range(i32 0, 8388609) i32 @HAL_PWREx_GetTemperatureLevel() local_unnamed_addr #0 {
  %1 = load volatile i32, ptr inttoptr (i64 1476544520 to ptr), align 8, !tbaa !5
  %2 = and i32 %1, 12582912
  %switch.selectcmp = icmp eq i32 %2, 8388608
  %switch.select = select i1 %switch.selectcmp, i32 8388608, i32 0
  %switch.selectcmp4 = icmp eq i32 %2, 4194304
  %switch.select5 = select i1 %switch.selectcmp4, i32 4194304, i32 %switch.select
  ret i32 %switch.select5
}

attributes #0 = { mustprogress nofree norecurse nounwind willreturn 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 8}
!6 = !{!"", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12, !7, i64 16, !7, i64 20, !7, i64 24, !7, i64 28, !7, i64 32, !7, i64 36, !7, i64 40}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}


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