; LLVM IR from TharushaDinujaya/MicroMouse :: test/mms-cpp/queue.ll (Z12create_queuei)

; 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.queue = type { ptr, i32, i32, i32 }

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z12create_queuei(i32 noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  %4 = call noalias noundef nonnull ptr @_Znwm(i64 noundef 24) #5
  store ptr %4, ptr %3, align 8, !tbaa !9
  %5 = load i32, ptr %2, align 4, !tbaa !5
  %6 = sext i32 %5 to i64
  %7 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %6, i64 8)
  %8 = extractvalue { i64, i1 } %7, 1
  %9 = extractvalue { i64, i1 } %7, 0
  %10 = select i1 %8, i64 -1, i64 %9
  %11 = call noalias noundef nonnull ptr @_Znam(i64 noundef %10) #5
  %12 = load ptr, ptr %3, align 8, !tbaa !9
  %13 = getelementptr inbounds %struct.queue, ptr %12, i32 0, i32 0
  store ptr %11, ptr %13, align 8, !tbaa !11
  %14 = load i32, ptr %2, align 4, !tbaa !5
  %15 = load ptr, ptr %3, align 8, !tbaa !9
  %16 = getelementptr inbounds %struct.queue, ptr %15, i32 0, i32 1
  store i32 %14, ptr %16, align 8, !tbaa !13
  %17 = load ptr, ptr %3, align 8, !tbaa !9
  %18 = getelementptr inbounds %struct.queue, ptr %17, i32 0, i32 2
  store i32 -1, ptr %18, align 4, !tbaa !14
  %19 = load ptr, ptr %3, align 8, !tbaa !9
  %20 = getelementptr inbounds %struct.queue, ptr %19, i32 0, i32 3
  store i32 -1, ptr %20, align 8, !tbaa !15
  %21 = load ptr, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  ret ptr %21
}

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

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) #2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #3

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #2

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

attributes #0 = { mustprogress 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 = { nobuiltin allocsize(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 #3 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { nounwind }
attributes #5 = { builtin allocsize(0) }

!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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"_ZTS5queue", !10, i64 0, !6, i64 8, !6, i64 12, !6, i64 16}
!13 = !{!12, !6, i64 8}
!14 = !{!12, !6, i64 12}
!15 = !{!12, !6, i64 16}


; 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: mustprogress uwtable
define dso_local noalias noundef nonnull ptr @_Z12create_queuei(i32 noundef %0) local_unnamed_addr #0 {
  %2 = tail call noalias noundef nonnull dereferenceable(24) ptr @_Znwm(i64 noundef 24) #2
  %3 = zext nneg i32 %0 to i64
  %4 = icmp slt i32 %0, 0
  %5 = shl nuw nsw i64 %3, 3
  %6 = select i1 %4, i64 -1, i64 %5
  %7 = tail call noalias noundef nonnull ptr @_Znam(i64 noundef %6) #2
  store ptr %7, ptr %2, align 8, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %2, i64 8
  store i32 %0, ptr %8, align 8, !tbaa !11
  %9 = getelementptr inbounds i8, ptr %2, i64 12
  store i32 -1, ptr %9, align 4, !tbaa !12
  %10 = getelementptr inbounds i8, ptr %2, i64 16
  store i32 -1, ptr %10, align 8, !tbaa !13
  ret ptr %2
}

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znwm(i64 noundef) local_unnamed_addr #1

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #1

attributes #0 = { mustprogress 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 = { nobuiltin allocsize(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 = { builtin allocsize(0) }

!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 0}
!6 = !{!"_ZTS5queue", !7, i64 0, !10, i64 8, !10, i64 12, !10, i64 16}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !10, i64 8}
!12 = !{!6, !10, i64 12}
!13 = !{!6, !10, i64 16}


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