; LLVM IR from danginsburg/opengles3-book :: Chapter_10/MultiTexture (MultiTexture)

; 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.ESContext = type { ptr, ptr, i32, i32, ptr, i64, ptr, ptr, ptr, ptr, ptr, ptr, ptr }

@.str.5 = external hidden unnamed_addr constant [13 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local i32 @Init(ptr noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local void @Draw(ptr noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local void @ShutDown(ptr noundef) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @esMain(ptr noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %4 = call noalias ptr @malloc(i64 noundef 20) #3
  %5 = load ptr, ptr %3, align 8, !tbaa !5
  %6 = getelementptr inbounds %struct.ESContext, ptr %5, i32 0, i32 1
  store ptr %4, ptr %6, align 8, !tbaa !9
  %7 = load ptr, ptr %3, align 8, !tbaa !5
  %8 = call zeroext i8 @esCreateWindow(ptr noundef %7, ptr noundef @.str.5, i32 noundef 320, i32 noundef 240, i32 noundef 0)
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = call i32 @Init(ptr noundef %9)
  %11 = icmp ne i32 %10, 0
  br i1 %11, label %13, label %12

12:                                               ; preds = %1
  store i32 0, ptr %2, align 4
  br label %16

13:                                               ; preds = %1
  %14 = load ptr, ptr %3, align 8, !tbaa !5
  call void @esRegisterDrawFunc(ptr noundef %14, ptr noundef @Draw)
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  call void @esRegisterShutdownFunc(ptr noundef %15, ptr noundef @ShutDown)
  store i32 1, ptr %2, align 4
  br label %16

16:                                               ; preds = %13, %12
  %17 = load i32, ptr %2, align 4
  ret i32 %17
}

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

declare zeroext i8 @esCreateWindow(ptr noundef, ptr noundef, i32 noundef, i32 noundef, i32 noundef) #2

declare void @esRegisterDrawFunc(ptr noundef, ptr noundef) #2

declare void @esRegisterShutdownFunc(ptr noundef, ptr noundef) #2

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 = { "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 = { 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, !6, i64 8}
!10 = !{!"ESContext", !6, i64 0, !6, i64 8, !11, i64 16, !11, i64 20, !6, i64 24, !12, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64, !6, i64 72, !6, i64 80, !6, i64 88}
!11 = !{!"int", !7, i64 0}
!12 = !{!"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.5 = external hidden unnamed_addr constant [13 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local i32 @Init(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @Draw(ptr noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local void @ShutDown(ptr noundef) #0

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 2) i32 @esMain(ptr noundef %0) local_unnamed_addr #0 {
  %2 = tail call noalias dereferenceable_or_null(20) ptr @malloc(i64 noundef 20) #3
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  store ptr %2, ptr %3, align 8, !tbaa !5
  %4 = tail call zeroext i8 @esCreateWindow(ptr noundef %0, ptr noundef nonnull @.str.5, i32 noundef 320, i32 noundef 240, i32 noundef 0) #4
  %5 = tail call i32 @Init(ptr noundef %0)
  %.not = icmp eq i32 %5, 0
  br i1 %.not, label %7, label %6

6:                                                ; preds = %1
  tail call void @esRegisterDrawFunc(ptr noundef nonnull %0, ptr noundef nonnull @Draw) #4
  tail call void @esRegisterShutdownFunc(ptr noundef nonnull %0, ptr noundef nonnull @ShutDown) #4
  br label %7

7:                                                ; preds = %1, %6
  %.0 = phi i32 [ 1, %6 ], [ 0, %1 ]
  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

declare zeroext i8 @esCreateWindow(ptr noundef, ptr noundef, i32 noundef, i32 noundef, i32 noundef) local_unnamed_addr #2

declare void @esRegisterDrawFunc(ptr noundef, ptr noundef) local_unnamed_addr #2

declare void @esRegisterShutdownFunc(ptr noundef, ptr noundef) local_unnamed_addr #2

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 = { 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 = { "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 = { nounwind allocsize(0) }
attributes #4 = { 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, !7, i64 8}
!6 = !{!"ESContext", !7, i64 0, !7, i64 8, !10, i64 16, !10, i64 20, !7, i64 24, !11, i64 32, !7, i64 40, !7, i64 48, !7, i64 56, !7, i64 64, !7, i64 72, !7, i64 80, !7, i64 88}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"long", !8, i64 0}


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