; LLVM IR from PetoiCamp/OpenCatEsp32 :: src/icm42670 (inv_imu_driver)

; 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.inv_imu_device = type { %struct.inv_imu_transport, ptr, [4128 x i8], i8, i8, i8, i32, i64, i64 }
%struct.inv_imu_transport = type { %struct.inv_imu_serif, %struct.register_cache, i8 }
%struct.inv_imu_serif = type { ptr, ptr, ptr, i32, i32, i32 }
%struct.register_cache = type { i8, i8, i8, i8 }

; 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 @inv_imu_start_dmp(ptr noundef %0) #1 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #2
  store i32 0, ptr %4, align 4, !tbaa !9
  %6 = load ptr, ptr %3, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.inv_imu_device, ptr %6, i32 0, i32 3
  %8 = load i8, ptr %7, align 8, !tbaa !11
  %9 = icmp ne i8 %8, 0
  br i1 %9, label %22, label %10

10:                                               ; preds = %1
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = call i32 @inv_imu_reset_dmp(ptr noundef %11, i32 noundef 1)
  %13 = load i32, ptr %4, align 4, !tbaa !9
  %14 = or i32 %13, %12
  store i32 %14, ptr %4, align 4, !tbaa !9
  %15 = load i32, ptr %4, align 4, !tbaa !9
  %16 = icmp ne i32 %15, 0
  br i1 %16, label %17, label %19

17:                                               ; preds = %10
  %18 = load i32, ptr %4, align 4, !tbaa !9
  store i32 %18, ptr %2, align 4
  store i32 1, ptr %5, align 4
  br label %28

19:                                               ; preds = %10
  %20 = load ptr, ptr %3, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.inv_imu_device, ptr %20, i32 0, i32 3
  store i8 1, ptr %21, align 8, !tbaa !11
  br label %22

22:                                               ; preds = %19, %1
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = call i32 @inv_imu_resume_dmp(ptr noundef %23)
  %25 = load i32, ptr %4, align 4, !tbaa !9
  %26 = or i32 %25, %24
  store i32 %26, ptr %4, align 4, !tbaa !9
  %27 = load i32, ptr %4, align 4, !tbaa !9
  store i32 %27, ptr %2, align 4
  store i32 1, ptr %5, align 4
  br label %28

28:                                               ; preds = %22, %17
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #2
  %29 = load i32, ptr %2, align 4
  ret i32 %29
}

; Function Attrs: nounwind uwtable
declare dso_local i32 @inv_imu_reset_dmp(ptr noundef, i32 noundef) #1

; Function Attrs: nounwind uwtable
declare dso_local i32 @inv_imu_resume_dmp(ptr noundef) #1

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, !7, i64 4184}
!12 = !{!"inv_imu_device", !13, i64 0, !6, i64 48, !7, i64 56, !7, i64 4184, !7, i64 4185, !7, i64 4186, !10, i64 4188, !16, i64 4192, !16, i64 4200}
!13 = !{!"inv_imu_transport", !14, i64 0, !15, i64 40, !7, i64 44}
!14 = !{!"inv_imu_serif", !6, i64 0, !6, i64 8, !6, i64 16, !10, i64 24, !10, i64 28, !10, i64 32}
!15 = !{!"register_cache", !7, i64 0, !7, i64 1, !7, i64 2, !7, i64 3}
!16 = !{!"long", !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: nounwind uwtable
define dso_local i32 @inv_imu_start_dmp(ptr noundef %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 4184
  %3 = load i8, ptr %2, align 8, !tbaa !5
  %.not = icmp eq i8 %3, 0
  br i1 %.not, label %4, label %7

4:                                                ; preds = %1
  %5 = tail call i32 @inv_imu_reset_dmp(ptr noundef nonnull %0, i32 noundef 1)
  %.not11 = icmp eq i32 %5, 0
  br i1 %.not11, label %6, label %9

6:                                                ; preds = %4
  store i8 1, ptr %2, align 8, !tbaa !5
  br label %7

7:                                                ; preds = %6, %1
  %8 = tail call i32 @inv_imu_resume_dmp(ptr noundef nonnull %0)
  br label %9

9:                                                ; preds = %4, %7
  %.09 = phi i32 [ %8, %7 ], [ %5, %4 ]
  ret i32 %.09
}

; Function Attrs: nounwind uwtable
declare dso_local i32 @inv_imu_reset_dmp(ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @inv_imu_resume_dmp(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, !10, i64 4184}
!6 = !{!"inv_imu_device", !7, i64 0, !9, i64 48, !10, i64 56, !10, i64 4184, !10, i64 4185, !10, i64 4186, !12, i64 4188, !14, i64 4192, !14, i64 4200}
!7 = !{!"inv_imu_transport", !8, i64 0, !13, i64 40, !10, i64 44}
!8 = !{!"inv_imu_serif", !9, i64 0, !9, i64 8, !9, i64 16, !12, i64 24, !12, i64 28, !12, i64 32}
!9 = !{!"any pointer", !10, i64 0}
!10 = !{!"omnipotent char", !11, i64 0}
!11 = !{!"Simple C/C++ TBAA"}
!12 = !{!"int", !10, i64 0}
!13 = !{!"register_cache", !10, i64 0, !10, i64 1, !10, i64 2, !10, i64 3}
!14 = !{!"long", !10, i64 0}


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