; LLVM IR from introlab/odas :: src/signal (pot)

; 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.pots_obj = type { i32, ptr }

@.str = external hidden unnamed_addr constant [37 x i8], align 1

; 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: nounwind uwtable
define dso_local void @pots_printf(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %4

4:                                                ; preds = %53, %1
  %5 = load i32, ptr %3, align 4, !tbaa !9
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %7 = getelementptr inbounds %struct.pots_obj, ptr %6, i32 0, i32 0
  %8 = load i32, ptr %7, align 8, !tbaa !11
  %9 = icmp ult i32 %5, %8
  br i1 %9, label %10, label %56

10:                                               ; preds = %4
  %11 = load i32, ptr %3, align 4, !tbaa !9
  %12 = load ptr, ptr %2, align 8, !tbaa !5
  %13 = getelementptr inbounds %struct.pots_obj, ptr %12, i32 0, i32 1
  %14 = load ptr, ptr %13, align 8, !tbaa !13
  %15 = load i32, ptr %3, align 4, !tbaa !9
  %16 = mul i32 %15, 4
  %17 = add i32 %16, 0
  %18 = zext i32 %17 to i64
  %19 = getelementptr inbounds float, ptr %14, i64 %18
  %20 = load float, ptr %19, align 4, !tbaa !14
  %21 = fpext float %20 to double
  %22 = load ptr, ptr %2, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.pots_obj, ptr %22, i32 0, i32 1
  %24 = load ptr, ptr %23, align 8, !tbaa !13
  %25 = load i32, ptr %3, align 4, !tbaa !9
  %26 = mul i32 %25, 4
  %27 = add i32 %26, 1
  %28 = zext i32 %27 to i64
  %29 = getelementptr inbounds float, ptr %24, i64 %28
  %30 = load float, ptr %29, align 4, !tbaa !14
  %31 = fpext float %30 to double
  %32 = load ptr, ptr %2, align 8, !tbaa !5
  %33 = getelementptr inbounds %struct.pots_obj, ptr %32, i32 0, i32 1
  %34 = load ptr, ptr %33, align 8, !tbaa !13
  %35 = load i32, ptr %3, align 4, !tbaa !9
  %36 = mul i32 %35, 4
  %37 = add i32 %36, 2
  %38 = zext i32 %37 to i64
  %39 = getelementptr inbounds float, ptr %34, i64 %38
  %40 = load float, ptr %39, align 4, !tbaa !14
  %41 = fpext float %40 to double
  %42 = load ptr, ptr %2, align 8, !tbaa !5
  %43 = getelementptr inbounds %struct.pots_obj, ptr %42, i32 0, i32 1
  %44 = load ptr, ptr %43, align 8, !tbaa !13
  %45 = load i32, ptr %3, align 4, !tbaa !9
  %46 = mul i32 %45, 4
  %47 = add i32 %46, 3
  %48 = zext i32 %47 to i64
  %49 = getelementptr inbounds float, ptr %44, i64 %48
  %50 = load float, ptr %49, align 4, !tbaa !14
  %51 = fpext float %50 to double
  %52 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %11, double noundef %21, double noundef %31, double noundef %41, double noundef %51)
  br label %53

53:                                               ; preds = %10
  %54 = load i32, ptr %3, align 4, !tbaa !9
  %55 = add i32 %54, 1
  store i32 %55, ptr %3, align 4, !tbaa !9
  br label %4, !llvm.loop !16

56:                                               ; preds = %4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  ret void
}

declare i32 @printf(ptr noundef, ...) #2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { "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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 0}
!12 = !{!"pots_obj", !10, i64 0, !6, i64 8}
!13 = !{!12, !6, i64 8}
!14 = !{!15, !15, i64 0}
!15 = !{!"float", !7, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"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"

@.str = external hidden unnamed_addr constant [37 x i8], align 1

; Function Attrs: nofree nounwind uwtable
define dso_local void @pots_printf(ptr nocapture noundef readonly %0) local_unnamed_addr #0 {
  %2 = load i32, ptr %0, align 8, !tbaa !5
  %.not = icmp eq i32 %2, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1
  %3 = getelementptr inbounds i8, ptr %0, i64 8
  br label %4

4:                                                ; preds = %.lr.ph, %4
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %4 ]
  %5 = load ptr, ptr %3, align 8, !tbaa !11
  %6 = trunc nuw i64 %indvars.iv to i32
  %7 = shl i32 %6, 2
  %8 = zext i32 %7 to i64
  %9 = getelementptr inbounds float, ptr %5, i64 %8
  %10 = load float, ptr %9, align 4, !tbaa !12
  %11 = fpext float %10 to double
  %12 = or disjoint i32 %7, 1
  %13 = zext i32 %12 to i64
  %14 = getelementptr inbounds float, ptr %5, i64 %13
  %15 = load float, ptr %14, align 4, !tbaa !12
  %16 = fpext float %15 to double
  %17 = or disjoint i32 %7, 2
  %18 = zext i32 %17 to i64
  %19 = getelementptr inbounds float, ptr %5, i64 %18
  %20 = load float, ptr %19, align 4, !tbaa !12
  %21 = fpext float %20 to double
  %22 = or disjoint i32 %7, 3
  %23 = zext i32 %22 to i64
  %24 = getelementptr inbounds float, ptr %5, i64 %23
  %25 = load float, ptr %24, align 4, !tbaa !12
  %26 = fpext float %25 to double
  %27 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %6, double noundef %11, double noundef %16, double noundef %21, double noundef %26)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %28 = load i32, ptr %0, align 8, !tbaa !5
  %29 = zext i32 %28 to i64
  %30 = icmp ult i64 %indvars.iv.next, %29
  br i1 %30, label %4, label %._crit_edge, !llvm.loop !14

._crit_edge:                                      ; preds = %4, %1
  ret void
}

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

attributes #0 = { nofree 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 = { 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" }

!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, !7, i64 0}
!6 = !{!"pots_obj", !7, i64 0, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 8}
!12 = !{!13, !13, i64 0}
!13 = !{!"float", !8, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


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