; LLVM IR from Simple-XX/SimplePhysicsEngine :: test/system_test/demo_old/RigidBodySimulation/ctypes.ll (ZN4clib4vec2ixEm)

; 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.clib::vec2" = type { double, double }

@.str = external hidden unnamed_addr constant [9 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [120 x i8], align 1
@__PRETTY_FUNCTION__._ZN4clib4vec2ixEm = external hidden unnamed_addr constant [39 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef double @_ZN4clib4vec2ixEm(ptr noundef nonnull align 8 dereferenceable(16) %0, i64 noundef %1) #0 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !9
  %5 = load ptr, ptr %3, align 8
  %6 = load i64, ptr %4, align 8, !tbaa !9
  %7 = icmp ule i64 %6, 2
  br i1 %7, label %8, label %9

8:                                                ; preds = %2
  br label %11

9:                                                ; preds = %2
  call void @__assert_fail(ptr noundef @.str, ptr noundef @.str.1, i32 noundef 11, ptr noundef @__PRETTY_FUNCTION__._ZN4clib4vec2ixEm) #2
  unreachable

10:                                               ; No predecessors!
  br label %11

11:                                               ; preds = %10, %8
  %12 = load i64, ptr %4, align 8, !tbaa !9
  %13 = icmp eq i64 %12, 0
  br i1 %13, label %14, label %17

14:                                               ; preds = %11
  %15 = getelementptr inbounds %"struct.clib::vec2", ptr %5, i32 0, i32 0
  %16 = load double, ptr %15, align 8, !tbaa !11
  br label %20

17:                                               ; preds = %11
  %18 = getelementptr inbounds %"struct.clib::vec2", ptr %5, i32 0, i32 1
  %19 = load double, ptr %18, align 8, !tbaa !14
  br label %20

20:                                               ; preds = %17, %14
  %21 = phi double [ %16, %14 ], [ %19, %17 ]
  ret double %21
}

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #1

attributes #0 = { mustprogress 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 = { noreturn nounwind "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 = { noreturn 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !13, i64 0}
!12 = !{!"_ZTSN4clib4vec2E", !13, i64 0, !13, i64 8}
!13 = !{!"double", !7, i64 0}
!14 = !{!12, !13, i64 8}


; 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"

@.str = external hidden unnamed_addr constant [9 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [120 x i8], align 1
@__PRETTY_FUNCTION__._ZN4clib4vec2ixEm = external hidden unnamed_addr constant [39 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef double @_ZN4clib4vec2ixEm(ptr nocapture noundef nonnull readonly align 8 dereferenceable(16) %0, i64 noundef %1) local_unnamed_addr #0 align 2 {
  %3 = icmp ult i64 %1, 3
  br i1 %3, label %5, label %4

4:                                                ; preds = %2
  tail call void @__assert_fail(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 11, ptr noundef nonnull @__PRETTY_FUNCTION__._ZN4clib4vec2ixEm) #2
  unreachable

5:                                                ; preds = %2
  %6 = icmp eq i64 %1, 0
  %.in.idx = select i1 %6, i64 0, i64 8
  %.in = getelementptr inbounds i8, ptr %0, i64 %.in.idx
  %7 = load double, ptr %.in, align 8, !tbaa !5
  ret double %7
}

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #1

attributes #0 = { mustprogress 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 = { noreturn nounwind "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 = { noreturn 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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


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