; LLVM IR from lfarcaro/ARINC653_ARMV7A_Z7000 :: ARINC653_ARMV7A_Z7000.sw/ARINC653_ARMV7A_Z7000/src/Application (system)

; 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"

; Function Attrs: nounwind uwtable
define dso_local void @SYSTEM_DEFAULTMODULE() #0 {
  %1 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #3
  call void @STARTUP_SYSTEM(ptr noundef %1)
  %2 = load i32, ptr %1, align 4, !tbaa !5
  %3 = icmp ne i32 %2, 1
  br i1 %3, label %4, label %7

4:                                                ; preds = %0
  br label %5

5:                                                ; preds = %6, %4
  br label %6

6:                                                ; preds = %5
  br label %5

7:                                                ; preds = %0
  %8 = call zeroext i8 @TEST_STARTUP()
  call void @RUN_SYSTEM(ptr noundef %1)
  %9 = load i32, ptr %1, align 4, !tbaa !5
  %10 = icmp ne i32 %9, 1
  br i1 %10, label %11, label %14

11:                                               ; preds = %7
  br label %12

12:                                               ; preds = %13, %11
  br label %13

13:                                               ; preds = %12
  br label %12

14:                                               ; preds = %7
  br label %15

15:                                               ; preds = %16, %14
  br label %16

16:                                               ; preds = %15
  br label %15
}

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

declare void @STARTUP_SYSTEM(ptr noundef) #2

declare zeroext i8 @TEST_STARTUP() #2

declare void @RUN_SYSTEM(ptr noundef) #2

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 = { "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 #3 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; 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: noreturn nounwind uwtable
define dso_local void @SYSTEM_DEFAULTMODULE() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #3
  call void @STARTUP_SYSTEM(ptr noundef nonnull %1) #3
  %2 = load i32, ptr %1, align 4, !tbaa !5
  %.not = icmp eq i32 %2, 1
  br i1 %.not, label %3, label %.preheader3

.preheader3:                                      ; preds = %0, %.preheader3
  br label %.preheader3

3:                                                ; preds = %0
  %4 = call zeroext i8 @TEST_STARTUP() #3
  call void @RUN_SYSTEM(ptr noundef nonnull %1) #3
  %5 = load i32, ptr %1, align 4, !tbaa !5
  %.not1 = icmp eq i32 %5, 1
  br i1 %.not1, label %.preheader, label %.preheader2

.preheader2:                                      ; preds = %3, %.preheader2
  br label %.preheader2

.preheader:                                       ; preds = %3, %.preheader
  br label %.preheader
}

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

declare void @STARTUP_SYSTEM(ptr noundef) local_unnamed_addr #2

declare zeroext i8 @TEST_STARTUP() local_unnamed_addr #2

declare void @RUN_SYSTEM(ptr noundef) local_unnamed_addr #2

attributes #0 = { noreturn 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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "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 #3 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SimplifyCFGPass