; LLVM IR from At-EC/At-RTOS :: source (k_malloc)

; 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"

@g_os_heap_mem = external hidden global [1024 x i32], align 16

; Function Attrs: nounwind uwtable
define dso_local zeroext i1 @k_allocated(ptr noundef %0) #0 {
  %2 = alloca i1, align 1
  %3 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %4 = load ptr, ptr %3, align 8, !tbaa !5
  %5 = ptrtoint ptr %4 to i32
  %6 = icmp ult i32 %5, ptrtoint (ptr @g_os_heap_mem to i32)
  br i1 %6, label %7, label %8

7:                                                ; preds = %1
  store i1 false, ptr %2, align 1
  br label %14

8:                                                ; preds = %1
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = ptrtoint ptr %9 to i32
  %11 = icmp ugt i32 %10, ptrtoint (ptr getelementptr inbounds ([1024 x i32], ptr @g_os_heap_mem, i64 0, i64 1023) to i32)
  br i1 %11, label %12, label %13

12:                                               ; preds = %8
  store i1 false, ptr %2, align 1
  br label %14

13:                                               ; preds = %8
  store i1 true, ptr %2, align 1
  br label %14

14:                                               ; preds = %13, %12, %7
  %15 = load i1, ptr %2, align 1
  ret i1 %15
}

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, !6, i64 0}
!6 = !{!"any pointer", !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"

@g_os_heap_mem = external hidden global [1024 x i32], align 16

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local zeroext i1 @k_allocated(ptr noundef %0) local_unnamed_addr #0 {
  %2 = ptrtoint ptr %0 to i64
  %3 = trunc i64 %2 to i32
  %4 = icmp uge i32 %3, ptrtoint (ptr @g_os_heap_mem to i32)
  %5 = icmp ule i32 %3, ptrtoint (ptr getelementptr inbounds (i8, ptr @g_os_heap_mem, i64 4092) to i32)
  %spec.select = select i1 %4, i1 %5, i1 false
  ret i1 %spec.select
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) 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)"}


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