; LLVM IR from cyberbotics/webots_ros2 :: webots_ros2_driver/webots/src/stb/tests (stretchy_buffer_test)

; 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"

; Function Attrs: nounwind uwtable
define dso_local void @test_sb() #0 {
  %1 = alloca ptr, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #2
  store ptr null, ptr %1, align 8, !tbaa !5
  %2 = load ptr, ptr %1, align 8, !tbaa !5
  %3 = icmp eq ptr %2, null
  br i1 %3, label %15, label %4

4:                                                ; preds = %0
  %5 = load ptr, ptr %1, align 8, !tbaa !5
  %6 = getelementptr inbounds i32, ptr %5, i64 -2
  %7 = getelementptr inbounds i32, ptr %6, i64 1
  %8 = load i32, ptr %7, align 4, !tbaa !9
  %9 = add nsw i32 %8, 1
  %10 = load ptr, ptr %1, align 8, !tbaa !5
  %11 = getelementptr inbounds i32, ptr %10, i64 -2
  %12 = getelementptr inbounds i32, ptr %11, i64 0
  %13 = load i32, ptr %12, align 4, !tbaa !9
  %14 = icmp sge i32 %9, %13
  br i1 %14, label %15, label %18

15:                                               ; preds = %4, %0
  %16 = load ptr, ptr %1, align 8, !tbaa !5
  %17 = call ptr @stb__sbgrowf(ptr noundef %16, i32 noundef 1, i32 noundef 1)
  store ptr %17, ptr %1, align 8, !tbaa !5
  br label %19

18:                                               ; preds = %4
  br label %19

19:                                               ; preds = %18, %15
  %20 = phi ptr [ %17, %15 ], [ null, %18 ]
  %21 = load ptr, ptr %1, align 8, !tbaa !5
  %22 = load ptr, ptr %1, align 8, !tbaa !5
  %23 = getelementptr inbounds i32, ptr %22, i64 -2
  %24 = getelementptr inbounds i32, ptr %23, i64 1
  %25 = load i32, ptr %24, align 4, !tbaa !9
  %26 = add nsw i32 %25, 1
  store i32 %26, ptr %24, align 4, !tbaa !9
  %27 = sext i32 %25 to i64
  %28 = getelementptr inbounds i8, ptr %21, i64 %27
  store i8 120, ptr %28, align 1, !tbaa !11
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #2
  ret void
}

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

; Function Attrs: nounwind uwtable
declare hidden ptr @stb__sbgrowf(ptr noundef, i32 noundef, i32 noundef) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!7, !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"

; Function Attrs: nounwind uwtable
define dso_local void @test_sb() local_unnamed_addr #0 {
  %1 = tail call ptr @stb__sbgrowf(ptr noundef null, i32 noundef 1, i32 noundef 1)
  %2 = getelementptr inbounds i8, ptr %1, i64 -4
  %3 = load i32, ptr %2, align 4, !tbaa !5
  %4 = add nsw i32 %3, 1
  store i32 %4, ptr %2, align 4, !tbaa !5
  %5 = sext i32 %3 to i64
  %6 = getelementptr inbounds i8, ptr %1, i64 %5
  store i8 120, ptr %6, align 1, !tbaa !9
  ret void
}

; Function Attrs: nounwind uwtable
declare hidden ptr @stb__sbgrowf(ptr noundef, i32 noundef, i32 noundef) local_unnamed_addr #0

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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!7, !7, i64 0}


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