; LLVM IR from stan-dev/math :: lib/tbb_2020.3/src/test/test_malloc_compliance.ll (Z8TreallocPvm)

; 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"

@.str = external hidden unnamed_addr constant [98 x i8], align 1
@Rrealloc = external dso_local global ptr, align 8
@.str.50 = external hidden unnamed_addr constant [36 x i8], align 1
@.str.51 = external hidden unnamed_addr constant [45 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z11ReportErrorPKciS0_S0_(ptr noundef, i32 noundef, ptr noundef, ptr noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z8TreallocPvm(ptr noundef %0, i64 noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  %7 = load i64, ptr %4, align 8, !tbaa !9
  %8 = icmp ugt i64 %7, 8
  %9 = zext i1 %8 to i64
  %10 = select i1 %8, i32 16, i32 8
  %11 = sext i32 %10 to i64
  store i64 %11, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  %12 = load ptr, ptr @Rrealloc, align 8, !tbaa !5
  %13 = load ptr, ptr %3, align 8, !tbaa !5
  %14 = load i64, ptr %4, align 8, !tbaa !9
  %15 = call noundef ptr %12(ptr noundef %13, i64 noundef %14)
  store ptr %15, ptr %6, align 8, !tbaa !5
  %16 = load ptr, ptr %6, align 8, !tbaa !5
  %17 = icmp ne ptr null, %16
  br i1 %17, label %18, label %28

18:                                               ; preds = %2
  %19 = load ptr, ptr %6, align 8, !tbaa !5
  %20 = ptrtoint ptr %19 to i64
  %21 = load i64, ptr %5, align 8, !tbaa !9
  %22 = sub i64 %21, 1
  %23 = and i64 %20, %22
  %24 = icmp eq i64 0, %23
  br i1 %24, label %25, label %26

25:                                               ; preds = %18
  br label %27

26:                                               ; preds = %18
  call void @_Z11ReportErrorPKciS0_S0_(ptr noundef @.str, i32 noundef 573, ptr noundef @.str.50, ptr noundef @.str.51)
  br label %27

27:                                               ; preds = %26, %25
  br label %28

28:                                               ; preds = %27, %2
  %29 = load ptr, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  ret ptr %29
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { 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}


; 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 [98 x i8], align 1
@Rrealloc = external dso_local local_unnamed_addr global ptr, align 8
@.str.50 = external hidden unnamed_addr constant [36 x i8], align 1
@.str.51 = external hidden unnamed_addr constant [45 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z11ReportErrorPKciS0_S0_(ptr noundef, i32 noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z8TreallocPvm(ptr noundef %0, i64 noundef %1) local_unnamed_addr #0 {
  %3 = load ptr, ptr @Rrealloc, align 8, !tbaa !5
  %4 = tail call noundef ptr %3(ptr noundef %0, i64 noundef %1)
  %.not = icmp eq ptr %4, null
  br i1 %.not, label %12, label %5

5:                                                ; preds = %2
  %6 = icmp ugt i64 %1, 8
  %7 = ptrtoint ptr %4 to i64
  %8 = select i1 %6, i64 15, i64 7
  %9 = and i64 %8, %7
  %10 = icmp eq i64 %9, 0
  br i1 %10, label %12, label %11

11:                                               ; preds = %5
  tail call void @_Z11ReportErrorPKciS0_S0_(ptr noundef nonnull @.str, i32 noundef 573, ptr noundef nonnull @.str.50, ptr noundef nonnull @.str.51)
  br label %12

12:                                               ; preds = %11, %5, %2
  ret ptr %4
}

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" }

!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"}


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