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

; 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.tdoas_obj = type { i32, i32, ptr, ptr, ptr }

@.str = external hidden unnamed_addr constant [9 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [8 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 @tdoas_printf(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  store i32 0, ptr %3, align 4, !tbaa !9
  br label %5

5:                                                ; preds = %40, %1
  %6 = load i32, ptr %3, align 4, !tbaa !9
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.tdoas_obj, ptr %7, i32 0, i32 0
  %9 = load i32, ptr %8, align 8, !tbaa !11
  %10 = icmp ult i32 %6, %9
  br i1 %10, label %11, label %43

11:                                               ; preds = %5
  %12 = load i32, ptr %3, align 4, !tbaa !9
  %13 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %12)
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %14

14:                                               ; preds = %35, %11
  %15 = load i32, ptr %4, align 4, !tbaa !9
  %16 = load ptr, ptr %2, align 8, !tbaa !5
  %17 = getelementptr inbounds %struct.tdoas_obj, ptr %16, i32 0, i32 1
  %18 = load i32, ptr %17, align 4, !tbaa !13
  %19 = icmp ult i32 %15, %18
  br i1 %19, label %20, label %38

20:                                               ; preds = %14
  %21 = load ptr, ptr %2, align 8, !tbaa !5
  %22 = getelementptr inbounds %struct.tdoas_obj, ptr %21, i32 0, i32 2
  %23 = load ptr, ptr %22, align 8, !tbaa !14
  %24 = load i32, ptr %3, align 4, !tbaa !9
  %25 = load ptr, ptr %2, align 8, !tbaa !5
  %26 = getelementptr inbounds %struct.tdoas_obj, ptr %25, i32 0, i32 1
  %27 = load i32, ptr %26, align 4, !tbaa !13
  %28 = mul i32 %24, %27
  %29 = load i32, ptr %4, align 4, !tbaa !9
  %30 = add i32 %28, %29
  %31 = zext i32 %30 to i64
  %32 = getelementptr inbounds i32, ptr %23, i64 %31
  %33 = load i32, ptr %32, align 4, !tbaa !9
  %34 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %33)
  br label %35

35:                                               ; preds = %20
  %36 = load i32, ptr %4, align 4, !tbaa !9
  %37 = add i32 %36, 1
  store i32 %37, ptr %4, align 4, !tbaa !9
  br label %14, !llvm.loop !15

38:                                               ; preds = %14
  %39 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  br label %40

40:                                               ; preds = %38
  %41 = load i32, ptr %3, align 4, !tbaa !9
  %42 = add i32 %41, 1
  store i32 %42, ptr %3, align 4, !tbaa !9
  br label %5, !llvm.loop !17

43:                                               ; preds = %5
  %44 = call i32 (ptr, ...) @printf(ptr noundef @.str.3)
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %45

45:                                               ; preds = %60, %43
  %46 = load i32, ptr %4, align 4, !tbaa !9
  %47 = load ptr, ptr %2, align 8, !tbaa !5
  %48 = getelementptr inbounds %struct.tdoas_obj, ptr %47, i32 0, i32 1
  %49 = load i32, ptr %48, align 4, !tbaa !13
  %50 = icmp ult i32 %46, %49
  br i1 %50, label %51, label %63

51:                                               ; preds = %45
  %52 = load ptr, ptr %2, align 8, !tbaa !5
  %53 = getelementptr inbounds %struct.tdoas_obj, ptr %52, i32 0, i32 3
  %54 = load ptr, ptr %53, align 8, !tbaa !18
  %55 = load i32, ptr %4, align 4, !tbaa !9
  %56 = zext i32 %55 to i64
  %57 = getelementptr inbounds i32, ptr %54, i64 %56
  %58 = load i32, ptr %57, align 4, !tbaa !9
  %59 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %58)
  br label %60

60:                                               ; preds = %51
  %61 = load i32, ptr %4, align 4, !tbaa !9
  %62 = add i32 %61, 1
  store i32 %62, ptr %4, align 4, !tbaa !9
  br label %45, !llvm.loop !19

63:                                               ; preds = %45
  %64 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  %65 = call i32 (ptr, ...) @printf(ptr noundef @.str.4)
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %66

66:                                               ; preds = %81, %63
  %67 = load i32, ptr %4, align 4, !tbaa !9
  %68 = load ptr, ptr %2, align 8, !tbaa !5
  %69 = getelementptr inbounds %struct.tdoas_obj, ptr %68, i32 0, i32 1
  %70 = load i32, ptr %69, align 4, !tbaa !13
  %71 = icmp ult i32 %67, %70
  br i1 %71, label %72, label %84

72:                                               ; preds = %66
  %73 = load ptr, ptr %2, align 8, !tbaa !5
  %74 = getelementptr inbounds %struct.tdoas_obj, ptr %73, i32 0, i32 4
  %75 = load ptr, ptr %74, align 8, !tbaa !20
  %76 = load i32, ptr %4, align 4, !tbaa !9
  %77 = zext i32 %76 to i64
  %78 = getelementptr inbounds i32, ptr %75, i64 %77
  %79 = load i32, ptr %78, align 4, !tbaa !9
  %80 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i32 noundef %79)
  br label %81

81:                                               ; preds = %72
  %82 = load i32, ptr %4, align 4, !tbaa !9
  %83 = add i32 %82, 1
  store i32 %83, ptr %4, align 4, !tbaa !9
  br label %66, !llvm.loop !21

84:                                               ; preds = %66
  %85 = call i32 (ptr, ...) @printf(ptr noundef @.str.2)
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  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 = !{!"tdoas_obj", !10, i64 0, !10, i64 4, !6, i64 8, !6, i64 16, !6, i64 24}
!13 = !{!12, !10, i64 4}
!14 = !{!12, !6, i64 8}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}
!17 = distinct !{!17, !16}
!18 = !{!12, !6, i64 16}
!19 = distinct !{!19, !16}
!20 = !{!12, !6, i64 24}
!21 = distinct !{!21, !16}


; 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 [9 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [8 x i8], align 1

; Function Attrs: nofree nounwind uwtable
define dso_local void @tdoas_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_edge26, label %.lr.ph25

.lr.ph25:                                         ; preds = %1
  %3 = getelementptr inbounds i8, ptr %0, i64 4
  %4 = getelementptr inbounds i8, ptr %0, i64 8
  br label %5

5:                                                ; preds = %.lr.ph25, %._crit_edge
  %.02023 = phi i32 [ 0, %.lr.ph25 ], [ %20, %._crit_edge ]
  %6 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %.02023)
  %7 = load i32, ptr %3, align 4, !tbaa !11
  %.not35 = icmp eq i32 %7, 0
  br i1 %.not35, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %5, %.lr.ph
  %8 = phi i32 [ %17, %.lr.ph ], [ %7, %5 ]
  %.022 = phi i32 [ %16, %.lr.ph ], [ 0, %5 ]
  %9 = load ptr, ptr %4, align 8, !tbaa !12
  %10 = mul i32 %8, %.02023
  %11 = add i32 %10, %.022
  %12 = zext i32 %11 to i64
  %13 = getelementptr inbounds i32, ptr %9, i64 %12
  %14 = load i32, ptr %13, align 4, !tbaa !13
  %15 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef %14)
  %16 = add nuw i32 %.022, 1
  %17 = load i32, ptr %3, align 4, !tbaa !11
  %18 = icmp ult i32 %16, %17
  br i1 %18, label %.lr.ph, label %._crit_edge, !llvm.loop !14

._crit_edge:                                      ; preds = %.lr.ph, %5
  %19 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2)
  %20 = add nuw i32 %.02023, 1
  %21 = load i32, ptr %0, align 8, !tbaa !5
  %22 = icmp ult i32 %20, %21
  br i1 %22, label %5, label %._crit_edge26, !llvm.loop !16

._crit_edge26:                                    ; preds = %._crit_edge, %1
  %23 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3)
  %24 = getelementptr inbounds i8, ptr %0, i64 4
  %25 = load i32, ptr %24, align 4, !tbaa !11
  %.not36 = icmp eq i32 %25, 0
  br i1 %.not36, label %._crit_edge30, label %.lr.ph29

.lr.ph29:                                         ; preds = %._crit_edge26
  %26 = getelementptr inbounds i8, ptr %0, i64 16
  br label %27

27:                                               ; preds = %.lr.ph29, %27
  %indvars.iv = phi i64 [ 0, %.lr.ph29 ], [ %indvars.iv.next, %27 ]
  %28 = load ptr, ptr %26, align 8, !tbaa !17
  %29 = getelementptr inbounds i32, ptr %28, i64 %indvars.iv
  %30 = load i32, ptr %29, align 4, !tbaa !13
  %31 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef %30)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %32 = load i32, ptr %24, align 4, !tbaa !11
  %33 = zext i32 %32 to i64
  %34 = icmp ult i64 %indvars.iv.next, %33
  br i1 %34, label %27, label %._crit_edge30, !llvm.loop !18

._crit_edge30:                                    ; preds = %27, %._crit_edge26
  %35 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2)
  %36 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.4)
  %37 = load i32, ptr %24, align 4, !tbaa !11
  %.not37 = icmp eq i32 %37, 0
  br i1 %.not37, label %._crit_edge34, label %.lr.ph33

.lr.ph33:                                         ; preds = %._crit_edge30
  %38 = getelementptr inbounds i8, ptr %0, i64 24
  br label %39

39:                                               ; preds = %.lr.ph33, %39
  %indvars.iv39 = phi i64 [ 0, %.lr.ph33 ], [ %indvars.iv.next40, %39 ]
  %40 = load ptr, ptr %38, align 8, !tbaa !19
  %41 = getelementptr inbounds i32, ptr %40, i64 %indvars.iv39
  %42 = load i32, ptr %41, align 4, !tbaa !13
  %43 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i32 noundef %42)
  %indvars.iv.next40 = add nuw nsw i64 %indvars.iv39, 1
  %44 = load i32, ptr %24, align 4, !tbaa !11
  %45 = zext i32 %44 to i64
  %46 = icmp ult i64 %indvars.iv.next40, %45
  br i1 %46, label %39, label %._crit_edge34, !llvm.loop !20

._crit_edge34:                                    ; preds = %39, %._crit_edge30
  %47 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2)
  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 = !{!"tdoas_obj", !7, i64 0, !7, i64 4, !10, i64 8, !10, i64 16, !10, i64 24}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !7, i64 4}
!12 = !{!6, !10, i64 8}
!13 = !{!7, !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = distinct !{!16, !15}
!17 = !{!6, !10, i64 16}
!18 = distinct !{!18, !15}
!19 = !{!6, !10, i64 24}
!20 = distinct !{!20, !15}


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