; LLVM IR from juliuskoskela/c-vec :: vec (vec_new)

; 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.s_vec = type { ptr, i64, i64, i64 }

; Function Attrs: nounwind uwtable
define dso_local i32 @vec_new(ptr noundef %0, i64 noundef %1, i64 noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i64 %1, ptr %6, align 8, !tbaa !9
  store i64 %2, ptr %7, align 8, !tbaa !9
  %8 = load ptr, ptr %5, align 8, !tbaa !5
  %9 = icmp ne ptr %8, null
  br i1 %9, label %10, label %13

10:                                               ; preds = %3
  %11 = load i64, ptr %7, align 8, !tbaa !9
  %12 = icmp eq i64 %11, 0
  br i1 %12, label %13, label %14

13:                                               ; preds = %10, %3
  store i32 -1, ptr %4, align 4
  br label %44

14:                                               ; preds = %10
  %15 = load i64, ptr %6, align 8, !tbaa !9
  %16 = load i64, ptr %7, align 8, !tbaa !9
  %17 = mul i64 %15, %16
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.s_vec, ptr %18, i32 0, i32 2
  store i64 %17, ptr %19, align 8, !tbaa !11
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.s_vec, ptr %20, i32 0, i32 3
  store i64 0, ptr %21, align 8, !tbaa !13
  %22 = load i64, ptr %7, align 8, !tbaa !9
  %23 = load ptr, ptr %5, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.s_vec, ptr %23, i32 0, i32 1
  store i64 %22, ptr %24, align 8, !tbaa !14
  %25 = load i64, ptr %6, align 8, !tbaa !9
  %26 = icmp eq i64 %25, 0
  br i1 %26, label %27, label %30

27:                                               ; preds = %14
  %28 = load ptr, ptr %5, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.s_vec, ptr %28, i32 0, i32 0
  store ptr null, ptr %29, align 8, !tbaa !15
  br label %43

30:                                               ; preds = %14
  %31 = load ptr, ptr %5, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.s_vec, ptr %31, i32 0, i32 2
  %33 = load i64, ptr %32, align 8, !tbaa !11
  %34 = call noalias ptr @malloc(i64 noundef %33) #2
  %35 = load ptr, ptr %5, align 8, !tbaa !5
  %36 = getelementptr inbounds %struct.s_vec, ptr %35, i32 0, i32 0
  store ptr %34, ptr %36, align 8, !tbaa !15
  %37 = load ptr, ptr %5, align 8, !tbaa !5
  %38 = getelementptr inbounds %struct.s_vec, ptr %37, i32 0, i32 0
  %39 = load ptr, ptr %38, align 8, !tbaa !15
  %40 = icmp ne ptr %39, null
  br i1 %40, label %42, label %41

41:                                               ; preds = %30
  store i32 -1, ptr %4, align 4
  br label %44

42:                                               ; preds = %30
  br label %43

43:                                               ; preds = %42, %27
  store i32 1, ptr %4, align 4
  br label %44

44:                                               ; preds = %43, %41, %13
  %45 = load i32, ptr %4, align 4
  ret i32 %45
}

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #1

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 = { nounwind 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 = { nounwind 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !10, i64 16}
!12 = !{!"s_vec", !6, i64 0, !10, i64 8, !10, i64 16, !10, i64 24}
!13 = !{!12, !10, i64 24}
!14 = !{!12, !10, i64 8}
!15 = !{!12, !6, 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: mustprogress nofree nounwind willreturn memory(argmem: write, inaccessiblemem: readwrite) uwtable
define dso_local range(i32 -1, 2) i32 @vec_new(ptr noundef writeonly %0, i64 noundef %1, i64 noundef %2) local_unnamed_addr #0 {
  %4 = icmp eq ptr %0, null
  %5 = icmp eq i64 %2, 0
  %or.cond = or i1 %4, %5
  br i1 %or.cond, label %16, label %6

6:                                                ; preds = %3
  %7 = mul i64 %2, %1
  %8 = getelementptr inbounds i8, ptr %0, i64 16
  store i64 %7, ptr %8, align 8, !tbaa !5
  %9 = getelementptr inbounds i8, ptr %0, i64 24
  store i64 0, ptr %9, align 8, !tbaa !11
  %10 = getelementptr inbounds i8, ptr %0, i64 8
  store i64 %2, ptr %10, align 8, !tbaa !12
  %11 = icmp eq i64 %1, 0
  br i1 %11, label %12, label %13

12:                                               ; preds = %6
  store ptr null, ptr %0, align 8, !tbaa !13
  br label %15

13:                                               ; preds = %6
  %14 = tail call noalias ptr @malloc(i64 noundef %7) #2
  store ptr %14, ptr %0, align 8, !tbaa !13
  %.not = icmp eq ptr %14, null
  br i1 %.not, label %16, label %15

15:                                               ; preds = %13, %12
  br label %16

16:                                               ; preds = %13, %3, %15
  %.0 = phi i32 [ 1, %15 ], [ -1, %3 ], [ -1, %13 ]
  ret i32 %.0
}

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nofree nounwind willreturn memory(argmem: write, inaccessiblemem: readwrite) 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 nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 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, !10, i64 16}
!6 = !{!"s_vec", !7, i64 0, !10, i64 8, !10, i64 16, !10, i64 24}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!6, !10, i64 24}
!12 = !{!6, !10, i64 8}
!13 = !{!6, !7, i64 0}


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