; LLVM IR from steps3d/graphics-book :: Code/Core/Texture.ll (ZN7Texture10setSwizzleEjjjj)

; 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"

%class.Texture = type { i32, i32, i32, i32, i32, i8, i32, %"class.std::__cxx11::basic_string" }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }

; 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
define dso_local void @_ZN7Texture10setSwizzleEjjjj(ptr noundef nonnull align 8 dereferenceable(64) %0, i32 noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) #1 align 2 {
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca [4 x i32], align 16
  store ptr %0, ptr %6, align 8, !tbaa !5
  store i32 %1, ptr %7, align 4, !tbaa !9
  store i32 %2, ptr %8, align 4, !tbaa !9
  store i32 %3, ptr %9, align 4, !tbaa !9
  store i32 %4, ptr %10, align 4, !tbaa !9
  %12 = load ptr, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr %11) #3
  %13 = load i32, ptr %7, align 4, !tbaa !9
  store i32 %13, ptr %11, align 4, !tbaa !9
  %14 = getelementptr inbounds i32, ptr %11, i64 1
  %15 = load i32, ptr %8, align 4, !tbaa !9
  store i32 %15, ptr %14, align 4, !tbaa !9
  %16 = getelementptr inbounds i32, ptr %11, i64 2
  %17 = load i32, ptr %9, align 4, !tbaa !9
  store i32 %17, ptr %16, align 4, !tbaa !9
  %18 = getelementptr inbounds i32, ptr %11, i64 3
  %19 = load i32, ptr %10, align 4, !tbaa !9
  store i32 %19, ptr %18, align 4, !tbaa !9
  %20 = getelementptr inbounds %class.Texture, ptr %12, i32 0, i32 1
  %21 = load i32, ptr %20, align 4, !tbaa !11
  %22 = getelementptr inbounds [4 x i32], ptr %11, i64 0, i64 0
  call void @glTexParameteriv(i32 noundef %21, i32 noundef 36422, ptr noundef %22)
  call void @llvm.lifetime.end.p0(i64 16, ptr %11) #3
  ret void
}

declare void @glTexParameteriv(i32 noundef, i32 noundef, ptr noundef) #2

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 = { "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 }

!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 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 4}
!12 = !{!"_ZTS7Texture", !10, i64 0, !10, i64 4, !10, i64 8, !10, i64 12, !10, i64 16, !13, i64 20, !10, i64 24, !14, i64 32}
!13 = !{!"bool", !7, i64 0}
!14 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !15, i64 0, !16, i64 8, !7, i64 16}
!15 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !6, i64 0}
!16 = !{!"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"

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

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

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7Texture10setSwizzleEjjjj(ptr nocapture noundef nonnull readonly align 8 dereferenceable(64) %0, i32 noundef %1, i32 noundef %2, i32 noundef %3, i32 noundef %4) local_unnamed_addr #1 align 2 {
  %6 = alloca [4 x i32], align 16
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %6) #3
  store i32 %1, ptr %6, align 16, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %6, i64 4
  store i32 %2, ptr %7, align 4, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %6, i64 8
  store i32 %3, ptr %8, align 8, !tbaa !5
  %9 = getelementptr inbounds i8, ptr %6, i64 12
  store i32 %4, ptr %9, align 4, !tbaa !5
  %10 = getelementptr inbounds i8, ptr %0, i64 4
  %11 = load i32, ptr %10, align 4, !tbaa !9
  call void @glTexParameteriv(i32 noundef %11, i32 noundef 36422, ptr noundef nonnull %6)
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %6) #3
  ret void
}

declare void @glTexParameteriv(i32 noundef, i32 noundef, ptr noundef) local_unnamed_addr #2

attributes #0 = { mustprogress 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 = { "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 }

!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, !6, i64 4}
!10 = !{!"_ZTS7Texture", !6, i64 0, !6, i64 4, !6, i64 8, !6, i64 12, !6, i64 16, !11, i64 20, !6, i64 24, !12, i64 32}
!11 = !{!"bool", !7, i64 0}
!12 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !13, i64 0, !15, i64 8, !7, i64 16}
!13 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !14, i64 0}
!14 = !{!"any pointer", !7, i64 0}
!15 = !{!"long", !7, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass