; LLVM IR from ggml-org/ggml :: src (ggml-backend)

; 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.ggml_backend_buffer_i = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }
%struct.ggml_backend_multi_buffer_context = type { ptr, i64 }
%struct.ggml_backend_buffer = type { %struct.ggml_backend_buffer_i, ptr, ptr, i64, i32 }

@.str.1 = external hidden unnamed_addr constant [68 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [23 x i8], align 1
@.str.19 = external hidden unnamed_addr constant [21 x i8], align 1
@_ZL27ggml_backend_multi_buffer_i = external hidden constant %struct.ggml_backend_buffer_i, align 8

; Function Attrs: mustprogress uwtable
declare dso_local ptr @ggml_backend_buffer_init(ptr noundef, ptr noundef byval(%struct.ggml_backend_buffer_i) align 8, ptr noundef, i64 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: 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) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local i64 @ggml_backend_buffer_get_size(ptr noundef) #3

; Function Attrs: noreturn
declare void @ggml_abort(ptr noundef, i32 noundef, ptr noundef, ...) #4

; Function Attrs: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #5

; Function Attrs: mustprogress uwtable
define dso_local ptr @ggml_backend_multi_buffer_alloc_buffer(ptr noundef %0, i64 noundef %1) #0 {
  %3 = alloca ptr, align 8
  %4 = alloca i64, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca %struct.ggml_backend_buffer_i, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store i64 %1, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #6
  %9 = call noalias ptr @malloc(i64 noundef 16) #7
  store ptr %9, ptr %5, align 8, !tbaa !5
  %10 = load i64, ptr %4, align 8, !tbaa !9
  %11 = load ptr, ptr %5, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.ggml_backend_multi_buffer_context, ptr %11, i32 0, i32 1
  store i64 %10, ptr %12, align 8, !tbaa !11
  %13 = load i64, ptr %4, align 8, !tbaa !9
  %14 = mul i64 %13, 8
  %15 = call noalias ptr @malloc(i64 noundef %14) #7
  %16 = load ptr, ptr %5, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.ggml_backend_multi_buffer_context, ptr %16, i32 0, i32 0
  store ptr %15, ptr %17, align 8, !tbaa !13
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = getelementptr inbounds %struct.ggml_backend_multi_buffer_context, ptr %18, i32 0, i32 0
  %20 = load ptr, ptr %19, align 8, !tbaa !13
  %21 = icmp ne ptr %20, null
  br i1 %21, label %23, label %22

22:                                               ; preds = %2
  call void (ptr, i32, ptr, ...) @ggml_abort(ptr noundef @.str.1, i32 noundef 573, ptr noundef @.str.2, ptr noundef @.str.19) #8
  unreachable

23:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #6
  store i64 0, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #6
  store i64 0, ptr %7, align 8, !tbaa !9
  br label %24

24:                                               ; preds = %46, %23
  %25 = load i64, ptr %7, align 8, !tbaa !9
  %26 = load i64, ptr %4, align 8, !tbaa !9
  %27 = icmp ult i64 %25, %26
  br i1 %27, label %29, label %28

28:                                               ; preds = %24
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  br label %49

29:                                               ; preds = %24
  %30 = load ptr, ptr %3, align 8, !tbaa !5
  %31 = load i64, ptr %7, align 8, !tbaa !9
  %32 = getelementptr inbounds ptr, ptr %30, i64 %31
  %33 = load ptr, ptr %32, align 8, !tbaa !5
  %34 = load ptr, ptr %5, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.ggml_backend_multi_buffer_context, ptr %34, i32 0, i32 0
  %36 = load ptr, ptr %35, align 8, !tbaa !13
  %37 = load i64, ptr %7, align 8, !tbaa !9
  %38 = getelementptr inbounds ptr, ptr %36, i64 %37
  store ptr %33, ptr %38, align 8, !tbaa !5
  %39 = load ptr, ptr %3, align 8, !tbaa !5
  %40 = load i64, ptr %7, align 8, !tbaa !9
  %41 = getelementptr inbounds ptr, ptr %39, i64 %40
  %42 = load ptr, ptr %41, align 8, !tbaa !5
  %43 = call i64 @ggml_backend_buffer_get_size(ptr noundef %42)
  %44 = load i64, ptr %6, align 8, !tbaa !9
  %45 = add i64 %44, %43
  store i64 %45, ptr %6, align 8, !tbaa !9
  br label %46

46:                                               ; preds = %29
  %47 = load i64, ptr %7, align 8, !tbaa !9
  %48 = add i64 %47, 1
  store i64 %48, ptr %7, align 8, !tbaa !9
  br label %24, !llvm.loop !14

49:                                               ; preds = %28
  %50 = load ptr, ptr %3, align 8, !tbaa !5
  %51 = getelementptr inbounds ptr, ptr %50, i64 0
  %52 = load ptr, ptr %51, align 8, !tbaa !5
  %53 = getelementptr inbounds %struct.ggml_backend_buffer, ptr %52, i32 0, i32 1
  %54 = load ptr, ptr %53, align 8, !tbaa !16
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %8, ptr align 8 @_ZL27ggml_backend_multi_buffer_i, i64 72, i1 false), !tbaa.struct !20
  %55 = load ptr, ptr %5, align 8, !tbaa !5
  %56 = load i64, ptr %6, align 8, !tbaa !9
  %57 = call ptr @ggml_backend_buffer_init(ptr noundef %54, ptr noundef byval(%struct.ggml_backend_buffer_i) align 8 %8, ptr noundef %55, i64 noundef %56)
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #6
  ret ptr %57
}

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" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { mustprogress 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 #4 = { noreturn "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 #5 = { 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 #6 = { nounwind }
attributes #7 = { nounwind allocsize(0) }
attributes #8 = { noreturn }

!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 = !{!"long", !7, i64 0}
!11 = !{!12, !10, i64 8}
!12 = !{!"_ZTS33ggml_backend_multi_buffer_context", !6, i64 0, !10, i64 8}
!13 = !{!12, !6, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = !{!17, !6, i64 72}
!17 = !{!"_ZTS19ggml_backend_buffer", !18, i64 0, !6, i64 72, !6, i64 80, !10, i64 88, !19, i64 96}
!18 = !{!"_ZTS21ggml_backend_buffer_i", !6, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !6, i64 48, !6, i64 56, !6, i64 64}
!19 = !{!"_ZTS25ggml_backend_buffer_usage", !7, i64 0}
!20 = !{i64 0, i64 8, !5, i64 8, i64 8, !5, i64 16, i64 8, !5, i64 24, i64 8, !5, i64 32, i64 8, !5, i64 40, i64 8, !5, i64 48, i64 8, !5, i64 56, i64 8, !5, i64 64, i64 8, !5}


; 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.ggml_backend_buffer_i = type { ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr, ptr }

@.str.1 = external hidden unnamed_addr constant [68 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [23 x i8], align 1
@.str.19 = external hidden unnamed_addr constant [21 x i8], align 1
@_ZL27ggml_backend_multi_buffer_i = external hidden local_unnamed_addr constant %struct.ggml_backend_buffer_i, align 8

; Function Attrs: mustprogress uwtable
declare dso_local ptr @ggml_backend_buffer_init(ptr noundef, ptr noundef byval(%struct.ggml_backend_buffer_i) align 8, ptr noundef, i64 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local i64 @ggml_backend_buffer_get_size(ptr noundef) local_unnamed_addr #1

; Function Attrs: noreturn
declare void @ggml_abort(ptr noundef, i32 noundef, ptr noundef, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #3

; Function Attrs: mustprogress uwtable
define dso_local ptr @ggml_backend_multi_buffer_alloc_buffer(ptr nocapture noundef readonly %0, i64 noundef %1) local_unnamed_addr #0 {
  %3 = tail call noalias dereferenceable_or_null(16) ptr @malloc(i64 noundef 16) #4
  %4 = getelementptr inbounds i8, ptr %3, i64 8
  store i64 %1, ptr %4, align 8, !tbaa !5
  %5 = shl i64 %1, 3
  %6 = tail call noalias ptr @malloc(i64 noundef %5) #4
  store ptr %6, ptr %3, align 8, !tbaa !11
  %.not = icmp eq ptr %6, null
  br i1 %.not, label %7, label %.preheader

.preheader:                                       ; preds = %2
  %.not20 = icmp eq i64 %1, 0
  br i1 %.not20, label %._crit_edge, label %.lr.ph

7:                                                ; preds = %2
  tail call void (ptr, i32, ptr, ...) @ggml_abort(ptr noundef nonnull @.str.1, i32 noundef 573, ptr noundef nonnull @.str.2, ptr noundef nonnull @.str.19) #5
  unreachable

._crit_edge:                                      ; preds = %.lr.ph, %.preheader
  %.017.lcssa = phi i64 [ 0, %.preheader ], [ %16, %.lr.ph ]
  %8 = load ptr, ptr %0, align 8, !tbaa !12
  %9 = getelementptr inbounds i8, ptr %8, i64 72
  %10 = load ptr, ptr %9, align 8, !tbaa !13
  %11 = tail call ptr @ggml_backend_buffer_init(ptr noundef %10, ptr noundef nonnull byval(%struct.ggml_backend_buffer_i) align 8 @_ZL27ggml_backend_multi_buffer_i, ptr noundef nonnull %3, i64 noundef %.017.lcssa)
  ret ptr %11

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %.019 = phi i64 [ %17, %.lr.ph ], [ 0, %.preheader ]
  %.01718 = phi i64 [ %16, %.lr.ph ], [ 0, %.preheader ]
  %12 = getelementptr inbounds ptr, ptr %0, i64 %.019
  %13 = load ptr, ptr %12, align 8, !tbaa !12
  %14 = getelementptr inbounds ptr, ptr %6, i64 %.019
  store ptr %13, ptr %14, align 8, !tbaa !12
  %15 = tail call i64 @ggml_backend_buffer_get_size(ptr noundef %13)
  %16 = add i64 %15, %.01718
  %17 = add nuw i64 %.019, 1
  %exitcond.not = icmp eq i64 %17, %1
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !17
}

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" }
attributes #1 = { mustprogress 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 #2 = { noreturn "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 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 #4 = { nounwind allocsize(0) }
attributes #5 = { noreturn }

!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, !10, i64 8}
!6 = !{!"_ZTS33ggml_backend_multi_buffer_context", !7, i64 0, !10, i64 8}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"long", !8, i64 0}
!11 = !{!6, !7, i64 0}
!12 = !{!7, !7, i64 0}
!13 = !{!14, !7, i64 72}
!14 = !{!"_ZTS19ggml_backend_buffer", !15, i64 0, !7, i64 72, !7, i64 80, !10, i64 88, !16, i64 96}
!15 = !{!"_ZTS21ggml_backend_buffer_i", !7, i64 0, !7, i64 8, !7, i64 16, !7, i64 24, !7, i64 32, !7, i64 40, !7, i64 48, !7, i64 56, !7, i64 64}
!16 = !{!"_ZTS25ggml_backend_buffer_usage", !8, i64 0}
!17 = distinct !{!17, !18}
!18 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass