; LLVM IR from ElsevierSoftwareX/SOFTX-D-20-00016 :: GameplayFootball/src/libs/glee/GLee.ll_ (GLeeLink_GL_AMD_vertex_shader_tesselator)

; 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"

@GLeeFuncPtr_glTessellationFactorAMD = external dso_local global ptr, align 8
@GLeeFuncPtr_glTessellationModeAMD = external dso_local global ptr, align 8
@.str = external hidden unnamed_addr constant [24 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [22 x i8], align 1

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

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

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

; Function Attrs: nounwind uwtable
define dso_local i32 @__GLeeLink_GL_AMD_vertex_shader_tesselator() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #2
  store i32 0, ptr %2, align 4, !tbaa !5
  %4 = call ptr @__GLeeGetProcAddress(ptr noundef @.str)
  store ptr %4, ptr @GLeeFuncPtr_glTessellationFactorAMD, align 8, !tbaa !9
  %5 = icmp ne ptr %4, null
  br i1 %5, label %6, label %9

6:                                                ; preds = %0
  %7 = load i32, ptr %2, align 4, !tbaa !5
  %8 = add nsw i32 %7, 1
  store i32 %8, ptr %2, align 4, !tbaa !5
  br label %9

9:                                                ; preds = %6, %0
  %10 = call ptr @__GLeeGetProcAddress(ptr noundef @.str.1)
  store ptr %10, ptr @GLeeFuncPtr_glTessellationModeAMD, align 8, !tbaa !9
  %11 = icmp ne ptr %10, null
  br i1 %11, label %12, label %15

12:                                               ; preds = %9
  %13 = load i32, ptr %2, align 4, !tbaa !5
  %14 = add nsw i32 %13, 1
  store i32 %14, ptr %2, align 4, !tbaa !5
  br label %15

15:                                               ; preds = %12, %9
  %16 = load i32, ptr %2, align 4, !tbaa !5
  %17 = icmp eq i32 %16, 2
  br i1 %17, label %18, label %19

18:                                               ; preds = %15
  store i32 2, ptr %1, align 4
  store i32 1, ptr %3, align 4
  br label %24

19:                                               ; preds = %15
  %20 = load i32, ptr %2, align 4, !tbaa !5
  %21 = icmp eq i32 %20, 0
  br i1 %21, label %22, label %23

22:                                               ; preds = %19
  store i32 0, ptr %1, align 4
  store i32 1, ptr %3, align 4
  br label %24

23:                                               ; preds = %19
  store i32 1, ptr %1, align 4
  store i32 1, ptr %3, align 4
  br label %24

24:                                               ; preds = %23, %22, %18
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #2
  %25 = load i32, ptr %1, align 4
  ret i32 %25
}

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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !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"

@GLeeFuncPtr_glTessellationFactorAMD = external dso_local local_unnamed_addr global ptr, align 8
@GLeeFuncPtr_glTessellationModeAMD = external dso_local local_unnamed_addr global ptr, align 8
@.str = external hidden unnamed_addr constant [24 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [22 x i8], align 1

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

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 3) i32 @__GLeeLink_GL_AMD_vertex_shader_tesselator() local_unnamed_addr #0 {
  %1 = tail call ptr @__GLeeGetProcAddress(ptr noundef nonnull @.str)
  store ptr %1, ptr @GLeeFuncPtr_glTessellationFactorAMD, align 8, !tbaa !5
  %.not = icmp ne ptr %1, null
  %2 = tail call ptr @__GLeeGetProcAddress(ptr noundef nonnull @.str.1)
  store ptr %2, ptr @GLeeFuncPtr_glTessellationModeAMD, align 8, !tbaa !5
  %.not6 = icmp ne ptr %2, null
  %switch.selectcmp = select i1 %.not6, i1 true, i1 %.not
  %switch.select = zext i1 %switch.selectcmp to i32
  %switch.selectcmp7 = select i1 %.not6, i1 %.not, i1 false
  %switch.select8 = select i1 %switch.selectcmp7, i32 2, i32 %switch.select
  ret i32 %switch.select8
}

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


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