; LLVM IR from libtcod/libtcod :: src/libtcod (context_viewport)

; 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.TCOD_ViewportOptions = type { i32, i8, i8, %struct.TCOD_ColorRGBA, float, float }
%struct.TCOD_ColorRGBA = type { i8, i8, i8, i8 }

@TCOD_VIEWPORT_DEFAULT_ = external dso_local constant %struct.TCOD_ViewportOptions, align 4
@.str = external hidden unnamed_addr constant [9 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [94 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [27 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local ptr @TCOD_viewport_new() #0 {
  %1 = alloca ptr, align 8
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #5
  %4 = call noalias ptr @malloc(i64 noundef 20) #6
  store ptr %4, ptr %2, align 8, !tbaa !5
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = icmp ne ptr %5, null
  br i1 %6, label %9, label %7

7:                                                ; preds = %0
  %8 = call i32 (ptr, ...) @TCOD_set_errorf(ptr noundef @.str, ptr noundef @.str.1, i32 noundef 51, ptr noundef @.str.2)
  store ptr null, ptr %1, align 8
  store i32 1, ptr %3, align 4
  br label %12

9:                                                ; preds = %0
  %10 = load ptr, ptr %2, align 8, !tbaa !5
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %10, ptr align 4 @TCOD_VIEWPORT_DEFAULT_, i64 20, i1 false)
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  store ptr %11, ptr %1, align 8
  store i32 1, ptr %3, align 4
  br label %12

12:                                               ; preds = %9, %7
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  %13 = load ptr, ptr %1, align 8
  ret ptr %13
}

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

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #2

declare i32 @TCOD_set_errorf(ptr noundef, ...) #3

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #4

; 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 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 #3 = { "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 #4 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #5 = { nounwind }
attributes #6 = { 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"}


; 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"

%struct.TCOD_ViewportOptions = type { i32, i8, i8, %struct.TCOD_ColorRGBA, float, float }
%struct.TCOD_ColorRGBA = type { i8, i8, i8, i8 }

@TCOD_VIEWPORT_DEFAULT_ = external dso_local local_unnamed_addr constant %struct.TCOD_ViewportOptions, align 4
@.str = external hidden unnamed_addr constant [9 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [94 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [27 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local noalias noundef ptr @TCOD_viewport_new() local_unnamed_addr #0 {
  %1 = tail call noalias dereferenceable_or_null(20) ptr @malloc(i64 noundef 20) #4
  %.not = icmp eq ptr %1, null
  br i1 %.not, label %2, label %4

2:                                                ; preds = %0
  %3 = tail call i32 (ptr, ...) @TCOD_set_errorf(ptr noundef nonnull @.str, ptr noundef nonnull @.str.1, i32 noundef 51, ptr noundef nonnull @.str.2) #5
  br label %5

4:                                                ; preds = %0
  tail call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 4 dereferenceable(20) %1, ptr noundef nonnull align 4 dereferenceable(20) @TCOD_VIEWPORT_DEFAULT_, i64 20, i1 false)
  br label %5

5:                                                ; preds = %4, %2
  ret ptr %1
}

; 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 i32 @TCOD_set_errorf(ptr noundef, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

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 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nounwind allocsize(0) }
attributes #5 = { 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)"}


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