; LLVM IR from jgaeddert/liquid-dsp :: examples (cbufferf_example)

; 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"

@__const.main.v = external hidden unnamed_addr constant [8 x float], align 16
@.str = external hidden unnamed_addr constant [51 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [7 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca [8 x float], align 16
  %3 = alloca ptr, align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 32, ptr %2) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %2, ptr align 16 @__const.main.v, i64 32, i1 false)
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  store i32 3, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  %8 = call ptr @cbufferf_create(i32 noundef 10)
  store ptr %8, ptr %6, align 8, !tbaa !9
  %9 = load ptr, ptr %6, align 8, !tbaa !9
  %10 = getelementptr inbounds [8 x float], ptr %2, i64 0, i64 0
  %11 = call i32 @cbufferf_write(ptr noundef %9, ptr noundef %10, i32 noundef 4)
  %12 = load ptr, ptr %6, align 8, !tbaa !9
  %13 = load i32, ptr %4, align 4, !tbaa !5
  %14 = call i32 @cbufferf_read(ptr noundef %12, i32 noundef %13, ptr noundef %3, ptr noundef %5)
  %15 = load i32, ptr %4, align 4, !tbaa !5
  %16 = load i32, ptr %5, align 4, !tbaa !5
  %17 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %15, i32 noundef %16)
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  store i32 0, ptr %7, align 4, !tbaa !5
  br label %18

18:                                               ; preds = %31, %0
  %19 = load i32, ptr %7, align 4, !tbaa !5
  %20 = load i32, ptr %5, align 4, !tbaa !5
  %21 = icmp ult i32 %19, %20
  br i1 %21, label %22, label %34

22:                                               ; preds = %18
  %23 = load i32, ptr %7, align 4, !tbaa !5
  %24 = load ptr, ptr %3, align 8, !tbaa !9
  %25 = load i32, ptr %7, align 4, !tbaa !5
  %26 = zext i32 %25 to i64
  %27 = getelementptr inbounds float, ptr %24, i64 %26
  %28 = load float, ptr %27, align 4, !tbaa !11
  %29 = fpext float %28 to double
  %30 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %23, double noundef %29)
  br label %31

31:                                               ; preds = %22
  %32 = load i32, ptr %7, align 4, !tbaa !5
  %33 = add i32 %32, 1
  store i32 %33, ptr %7, align 4, !tbaa !5
  br label %18, !llvm.loop !13

34:                                               ; preds = %18
  %35 = load ptr, ptr %6, align 8, !tbaa !9
  %36 = call i32 @cbufferf_release(ptr noundef %35, i32 noundef 2)
  %37 = load ptr, ptr %6, align 8, !tbaa !9
  %38 = getelementptr inbounds [8 x float], ptr %2, i64 0, i64 0
  %39 = call i32 @cbufferf_write(ptr noundef %37, ptr noundef %38, i32 noundef 8)
  %40 = load ptr, ptr %6, align 8, !tbaa !9
  %41 = call i32 @cbufferf_print(ptr noundef %40)
  %42 = load ptr, ptr %6, align 8, !tbaa !9
  %43 = call i32 @cbufferf_destroy(ptr noundef %42)
  %44 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %2) #4
  ret i32 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 nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

declare ptr @cbufferf_create(i32 noundef) #3

declare i32 @cbufferf_write(ptr noundef, ptr noundef, i32 noundef) #3

declare i32 @cbufferf_read(ptr noundef, i32 noundef, ptr noundef, ptr noundef) #3

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

declare i32 @cbufferf_release(ptr noundef, i32 noundef) #3

declare i32 @cbufferf_print(ptr noundef) #3

declare i32 @cbufferf_destroy(ptr noundef) #3

; 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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = { 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}
!11 = !{!12, !12, i64 0}
!12 = !{!"float", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; 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"

@__const.main.v = external hidden unnamed_addr constant [8 x float], align 16
@.str = external hidden unnamed_addr constant [51 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [7 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca [8 x float], align 16
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #5
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(32) %1, ptr noundef nonnull align 16 dereferenceable(32) @__const.main.v, i64 32, i1 false)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #5
  %4 = tail call ptr @cbufferf_create(i32 noundef 10) #5
  %5 = call i32 @cbufferf_write(ptr noundef %4, ptr noundef nonnull %1, i32 noundef 4) #5
  %6 = call i32 @cbufferf_read(ptr noundef %4, i32 noundef 3, ptr noundef nonnull %2, ptr noundef nonnull %3) #5
  %7 = load i32, ptr %3, align 4, !tbaa !5
  %8 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef 3, i32 noundef %7)
  %9 = load i32, ptr %3, align 4, !tbaa !5
  %.not = icmp eq i32 %9, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %0, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %0 ]
  %10 = load ptr, ptr %2, align 8, !tbaa !9
  %11 = getelementptr inbounds float, ptr %10, i64 %indvars.iv
  %12 = load float, ptr %11, align 4, !tbaa !11
  %13 = fpext float %12 to double
  %14 = trunc nuw i64 %indvars.iv to i32
  %15 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef %14, double noundef %13)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %16 = load i32, ptr %3, align 4, !tbaa !5
  %17 = zext i32 %16 to i64
  %18 = icmp ult i64 %indvars.iv.next, %17
  br i1 %18, label %.lr.ph, label %._crit_edge, !llvm.loop !13

._crit_edge:                                      ; preds = %.lr.ph, %0
  %19 = call i32 @cbufferf_release(ptr noundef %4, i32 noundef 2) #5
  %20 = call i32 @cbufferf_write(ptr noundef %4, ptr noundef nonnull %1, i32 noundef 8) #5
  %21 = call i32 @cbufferf_print(ptr noundef %4) #5
  %22 = call i32 @cbufferf_destroy(ptr noundef %4) #5
  %23 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #5
  ret i32 0
}

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

; 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) #2

declare ptr @cbufferf_create(i32 noundef) local_unnamed_addr #3

declare i32 @cbufferf_write(ptr noundef, ptr noundef, i32 noundef) local_unnamed_addr #3

declare i32 @cbufferf_read(ptr noundef, i32 noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #4

declare i32 @cbufferf_release(ptr noundef, i32 noundef) local_unnamed_addr #3

declare i32 @cbufferf_print(ptr noundef) local_unnamed_addr #3

declare i32 @cbufferf_destroy(ptr noundef) local_unnamed_addr #3

; Function Attrs: mustprogress 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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = { nofree nounwind "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 }

!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}
!11 = !{!12, !12, i64 0}
!12 = !{!"float", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


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