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

; 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.HSEM_Common_TypeDef = type { i32, i32, i32, i32 }

; Function Attrs: nounwind uwtable
define dso_local void @HAL_HSEM_IRQHandler() #0 {
  %1 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #2
  %2 = load volatile i32, ptr getelementptr inbounds (%struct.HSEM_Common_TypeDef, ptr inttoptr (i64 1476551936 to ptr), i32 0, i32 3), align 4, !tbaa !5
  store i32 %2, ptr %1, align 4, !tbaa !10
  %3 = load i32, ptr %1, align 4, !tbaa !10
  %4 = xor i32 %3, -1
  %5 = load volatile i32, ptr inttoptr (i64 1476551936 to ptr), align 4, !tbaa !11
  %6 = and i32 %5, %4
  store volatile i32 %6, ptr inttoptr (i64 1476551936 to ptr), align 4, !tbaa !11
  %7 = load i32, ptr %1, align 4, !tbaa !10
  store volatile i32 %7, ptr getelementptr inbounds (%struct.HSEM_Common_TypeDef, ptr inttoptr (i64 1476551936 to ptr), i32 0, i32 1), align 4, !tbaa !12
  %8 = load i32, ptr %1, align 4, !tbaa !10
  call void @HAL_HSEM_FreeCallback(i32 noundef %8)
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #2
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
declare dso_local void @HAL_HSEM_FreeCallback(i32 noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 12}
!6 = !{!"", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!7, !7, i64 0}
!11 = !{!6, !7, i64 0}
!12 = !{!6, !7, 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 void @HAL_HSEM_IRQHandler() local_unnamed_addr #0 {
  %1 = load volatile i32, ptr inttoptr (i64 1476551948 to ptr), align 4, !tbaa !5
  %2 = xor i32 %1, -1
  %3 = load volatile i32, ptr inttoptr (i64 1476551936 to ptr), align 256, !tbaa !10
  %4 = and i32 %3, %2
  store volatile i32 %4, ptr inttoptr (i64 1476551936 to ptr), align 256, !tbaa !10
  store volatile i32 %1, ptr inttoptr (i64 1476551940 to ptr), align 4, !tbaa !11
  tail call void @HAL_HSEM_FreeCallback(i32 noundef %1)
  ret void
}

; Function Attrs: nounwind uwtable
declare dso_local void @HAL_HSEM_FreeCallback(i32 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, !7, i64 12}
!6 = !{!"", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!6, !7, i64 0}
!11 = !{!6, !7, i64 4}


; Effective O3 passes: GlobalOptPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,TailCallElimPass