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

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

@.str = external hidden unnamed_addr constant [7 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 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 @assignations_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 = %38, %1
  %6 = load i32, ptr %3, align 4, !tbaa !9
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %8 = getelementptr inbounds %struct.assignations_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 %41

11:                                               ; preds = %5
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %12

12:                                               ; preds = %33, %11
  %13 = load i32, ptr %4, align 4, !tbaa !9
  %14 = load ptr, ptr %2, align 8, !tbaa !5
  %15 = getelementptr inbounds %struct.assignations_obj, ptr %14, i32 0, i32 1
  %16 = load i32, ptr %15, align 4, !tbaa !13
  %17 = icmp ult i32 %13, %16
  br i1 %17, label %18, label %36

18:                                               ; preds = %12
  %19 = load ptr, ptr %2, align 8, !tbaa !5
  %20 = getelementptr inbounds %struct.assignations_obj, ptr %19, i32 0, i32 2
  %21 = load ptr, ptr %20, align 8, !tbaa !14
  %22 = load i32, ptr %3, align 4, !tbaa !9
  %23 = load ptr, ptr %2, align 8, !tbaa !5
  %24 = getelementptr inbounds %struct.assignations_obj, ptr %23, i32 0, i32 1
  %25 = load i32, ptr %24, align 4, !tbaa !13
  %26 = mul i32 %22, %25
  %27 = load i32, ptr %4, align 4, !tbaa !9
  %28 = add i32 %26, %27
  %29 = zext i32 %28 to i64
  %30 = getelementptr inbounds i32, ptr %21, i64 %29
  %31 = load i32, ptr %30, align 4, !tbaa !9
  %32 = call i32 (ptr, ...) @printf(ptr noundef @.str, i32 noundef %31)
  br label %33

33:                                               ; preds = %18
  %34 = load i32, ptr %4, align 4, !tbaa !9
  %35 = add i32 %34, 1
  store i32 %35, ptr %4, align 4, !tbaa !9
  br label %12, !llvm.loop !15

36:                                               ; preds = %12
  %37 = call i32 (ptr, ...) @printf(ptr noundef @.str.1)
  br label %38

38:                                               ; preds = %36
  %39 = load i32, ptr %3, align 4, !tbaa !9
  %40 = add i32 %39, 1
  store i32 %40, ptr %3, align 4, !tbaa !9
  br label %5, !llvm.loop !17

41:                                               ; preds = %5
  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 = !{!"assignations_obj", !10, i64 0, !10, i64 4, !6, i64 8}
!13 = !{!12, !10, i64 4}
!14 = !{!12, !6, i64 8}
!15 = distinct !{!15, !16}
!16 = !{!"llvm.loop.mustprogress"}
!17 = distinct !{!17, !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 [7 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: nofree nounwind uwtable
define dso_local void @assignations_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_edge13, label %.preheader.lr.ph

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

.preheader:                                       ; preds = %.preheader.lr.ph, %._crit_edge
  %.0912 = phi i32 [ 0, %.preheader.lr.ph ], [ %18, %._crit_edge ]
  %5 = load i32, ptr %3, align 4, !tbaa !11
  %.not14 = icmp eq i32 %5, 0
  br i1 %.not14, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %6 = phi i32 [ %15, %.lr.ph ], [ %5, %.preheader ]
  %.011 = phi i32 [ %14, %.lr.ph ], [ 0, %.preheader ]
  %7 = load ptr, ptr %4, align 8, !tbaa !12
  %8 = mul i32 %6, %.0912
  %9 = add i32 %8, %.011
  %10 = zext i32 %9 to i64
  %11 = getelementptr inbounds i32, ptr %7, i64 %10
  %12 = load i32, ptr %11, align 4, !tbaa !13
  %13 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, i32 noundef %12)
  %14 = add nuw i32 %.011, 1
  %15 = load i32, ptr %3, align 4, !tbaa !11
  %16 = icmp ult i32 %14, %15
  br i1 %16, label %.lr.ph, label %._crit_edge, !llvm.loop !14

._crit_edge:                                      ; preds = %.lr.ph, %.preheader
  %17 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1)
  %18 = add nuw i32 %.0912, 1
  %19 = load i32, ptr %0, align 8, !tbaa !5
  %20 = icmp ult i32 %18, %19
  br i1 %20, label %.preheader, label %._crit_edge13, !llvm.loop !16

._crit_edge13:                                    ; preds = %._crit_edge, %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 = !{!"assignations_obj", !7, i64 0, !7, i64 4, !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, !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}


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