; LLVM IR from paroj/gltut :: Tut 14 Textures Are Not Pictures/MaterialTexture.ll (Z22CreateGaussianTexturesv)

; 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"

@g_gaussTextures = external dso_local global [4 x i32], align 16
@g_textureSampler = external dso_local global i32, align 4
@_funcptr_glGenSamplers = external global ptr, align 8
@_funcptr_glSamplerParameteri = external global ptr, align 8

; 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 noundef i32 @_Z21CreateGaussianTextureii(i32 noundef, i32 noundef) #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z20CalcCosAngResolutioni(i32 noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z22CreateGaussianTexturesv() #1 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #2
  store i32 0, ptr %1, align 4, !tbaa !5
  br label %3

3:                                                ; preds = %15, %0
  %4 = load i32, ptr %1, align 4, !tbaa !5
  %5 = icmp slt i32 %4, 4
  br i1 %5, label %7, label %6

6:                                                ; preds = %3
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #2
  br label %18

7:                                                ; preds = %3
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #2
  %8 = load i32, ptr %1, align 4, !tbaa !5
  %9 = call noundef i32 @_Z20CalcCosAngResolutioni(i32 noundef %8)
  store i32 %9, ptr %2, align 4, !tbaa !5
  %10 = load i32, ptr %2, align 4, !tbaa !5
  %11 = call noundef i32 @_Z21CreateGaussianTextureii(i32 noundef %10, i32 noundef 128)
  %12 = load i32, ptr %1, align 4, !tbaa !5
  %13 = sext i32 %12 to i64
  %14 = getelementptr inbounds [4 x i32], ptr @g_gaussTextures, i64 0, i64 %13
  store i32 %11, ptr %14, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #2
  br label %15

15:                                               ; preds = %7
  %16 = load i32, ptr %1, align 4, !tbaa !5
  %17 = add nsw i32 %16, 1
  store i32 %17, ptr %1, align 4, !tbaa !5
  br label %3, !llvm.loop !9

18:                                               ; preds = %6
  %19 = load ptr, ptr @_funcptr_glGenSamplers, align 8, !tbaa !11
  call void %19(i32 noundef 1, ptr noundef @g_textureSampler)
  %20 = load ptr, ptr @_funcptr_glSamplerParameteri, align 8, !tbaa !11
  %21 = load i32, ptr @g_textureSampler, align 4, !tbaa !5
  call void %20(i32 noundef %21, i32 noundef 10240, i32 noundef 9728)
  %22 = load ptr, ptr @_funcptr_glSamplerParameteri, align 8, !tbaa !11
  %23 = load i32, ptr @g_textureSampler, align 4, !tbaa !5
  call void %22(i32 noundef %23, i32 noundef 10241, i32 noundef 9728)
  %24 = load ptr, ptr @_funcptr_glSamplerParameteri, align 8, !tbaa !11
  %25 = load i32, ptr @g_textureSampler, align 4, !tbaa !5
  call void %24(i32 noundef %25, i32 noundef 10242, i32 noundef 33071)
  %26 = load ptr, ptr @_funcptr_glSamplerParameteri, align 8, !tbaa !11
  %27 = load i32, ptr @g_textureSampler, align 4, !tbaa !5
  call void %26(i32 noundef %27, i32 noundef 10243, i32 noundef 33071)
  ret void
}

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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !12, i64 0}
!12 = !{!"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"

@g_gaussTextures = external dso_local local_unnamed_addr global [4 x i32], align 16
@g_textureSampler = external dso_local global i32, align 4
@_funcptr_glGenSamplers = external local_unnamed_addr global ptr, align 8
@_funcptr_glSamplerParameteri = external local_unnamed_addr global ptr, align 8

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z21CreateGaussianTextureii(i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef i32 @_Z20CalcCosAngResolutioni(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z22CreateGaussianTexturesv() local_unnamed_addr #0 {
  %1 = tail call noundef i32 @_Z20CalcCosAngResolutioni(i32 noundef 0)
  %2 = tail call noundef i32 @_Z21CreateGaussianTextureii(i32 noundef %1, i32 noundef 128)
  store i32 %2, ptr @g_gaussTextures, align 16, !tbaa !5
  %3 = tail call noundef i32 @_Z20CalcCosAngResolutioni(i32 noundef 1)
  %4 = tail call noundef i32 @_Z21CreateGaussianTextureii(i32 noundef %3, i32 noundef 128)
  store i32 %4, ptr getelementptr inbounds (i8, ptr @g_gaussTextures, i64 4), align 4, !tbaa !5
  %5 = tail call noundef i32 @_Z20CalcCosAngResolutioni(i32 noundef 2)
  %6 = tail call noundef i32 @_Z21CreateGaussianTextureii(i32 noundef %5, i32 noundef 128)
  store i32 %6, ptr getelementptr inbounds (i8, ptr @g_gaussTextures, i64 8), align 8, !tbaa !5
  %7 = tail call noundef i32 @_Z20CalcCosAngResolutioni(i32 noundef 3)
  %8 = tail call noundef i32 @_Z21CreateGaussianTextureii(i32 noundef %7, i32 noundef 128)
  store i32 %8, ptr getelementptr inbounds (i8, ptr @g_gaussTextures, i64 12), align 4, !tbaa !5
  %9 = load ptr, ptr @_funcptr_glGenSamplers, align 8, !tbaa !9
  tail call void %9(i32 noundef 1, ptr noundef nonnull @g_textureSampler)
  %10 = load ptr, ptr @_funcptr_glSamplerParameteri, align 8, !tbaa !9
  %11 = load i32, ptr @g_textureSampler, align 4, !tbaa !5
  tail call void %10(i32 noundef %11, i32 noundef 10240, i32 noundef 9728)
  %12 = load ptr, ptr @_funcptr_glSamplerParameteri, align 8, !tbaa !9
  %13 = load i32, ptr @g_textureSampler, align 4, !tbaa !5
  tail call void %12(i32 noundef %13, i32 noundef 10241, i32 noundef 9728)
  %14 = load ptr, ptr @_funcptr_glSamplerParameteri, align 8, !tbaa !9
  %15 = load i32, ptr @g_textureSampler, align 4, !tbaa !5
  tail call void %14(i32 noundef %15, i32 noundef 10242, i32 noundef 33071)
  %16 = load ptr, ptr @_funcptr_glSamplerParameteri, align 8, !tbaa !9
  %17 = load i32, ptr @g_textureSampler, align 4, !tbaa !5
  tail call void %16(i32 noundef %17, i32 noundef 10243, i32 noundef 33071)
  ret void
}

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


; Effective O3 passes: GVNPass,GlobalOptPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,SROAPass,SimplifyCFGPass,TailCallElimPass