; LLVM IR from suxiaojack/sapDecoder :: src/sapdecoder.ll (ZN10SAPDecoder10SetDampingEfPSt6vectorIfSaIfEE)

; 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"

@.str.1 = external hidden unnamed_addr constant [74 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [11 x i8], align 1
@__PRETTY_FUNCTION__._ZN10SAPDecoder10SetDampingEfPSt6vectorIfSaIfEE = external hidden unnamed_addr constant [52 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: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIfSaIfEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN10SAPDecoder10SetDampingEfPSt6vectorIfSaIfEE(ptr noundef nonnull align 8 dereferenceable(144) %0, float noundef %1, ptr noundef %2) #2 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca float, align 4
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store float %1, ptr %5, align 4, !tbaa !9
  store ptr %2, ptr %6, align 8, !tbaa !5
  %8 = load ptr, ptr %4, align 8
  %9 = load ptr, ptr %6, align 8, !tbaa !5
  %10 = icmp ne ptr %9, null
  br i1 %10, label %11, label %12

11:                                               ; preds = %3
  br label %14

12:                                               ; preds = %3
  call void @__assert_fail(ptr noundef @.str.7, ptr noundef @.str.1, i32 noundef 174, ptr noundef @__PRETTY_FUNCTION__._ZN10SAPDecoder10SetDampingEfPSt6vectorIfSaIfEE) #3
  unreachable

13:                                               ; No predecessors!
  br label %14

14:                                               ; preds = %13, %11
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #4
  store i32 0, ptr %7, align 4, !tbaa !11
  br label %15

15:                                               ; preds = %30, %14
  %16 = load i32, ptr %7, align 4, !tbaa !11
  %17 = sext i32 %16 to i64
  %18 = load ptr, ptr %6, align 8, !tbaa !5
  %19 = call noundef i64 @_ZNKSt6vectorIfSaIfEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %18) #4
  %20 = icmp ult i64 %17, %19
  br i1 %20, label %22, label %21

21:                                               ; preds = %15
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #4
  br label %33

22:                                               ; preds = %15
  %23 = load float, ptr %5, align 4, !tbaa !9
  %24 = load ptr, ptr %6, align 8, !tbaa !5
  %25 = load i32, ptr %7, align 4, !tbaa !11
  %26 = sext i32 %25 to i64
  %27 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIfSaIfEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %24, i64 noundef %26) #4
  %28 = load float, ptr %27, align 4, !tbaa !9
  %29 = fmul float %28, %23
  store float %29, ptr %27, align 4, !tbaa !9
  br label %30

30:                                               ; preds = %22
  %31 = load i32, ptr %7, align 4, !tbaa !11
  %32 = add nsw i32 %31, 1
  store i32 %32, ptr %7, align 4, !tbaa !11
  br label %15, !llvm.loop !13

33:                                               ; preds = %21
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIfSaIfEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #2 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { noreturn 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 #2 = { 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 #3 = { noreturn nounwind }
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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"float", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !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"

@.str.1 = external hidden unnamed_addr constant [74 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [11 x i8], align 1
@__PRETTY_FUNCTION__._ZN10SAPDecoder10SetDampingEfPSt6vectorIfSaIfEE = external hidden unnamed_addr constant [52 x i8], align 1

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIfSaIfEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN10SAPDecoder10SetDampingEfPSt6vectorIfSaIfEE(ptr nocapture noundef nonnull readnone align 8 dereferenceable(144) %0, float noundef %1, ptr noundef %2) local_unnamed_addr #1 align 2 {
  %.not = icmp eq ptr %2, null
  br i1 %.not, label %5, label %.preheader

.preheader:                                       ; preds = %3
  %4 = tail call noundef i64 @_ZNKSt6vectorIfSaIfEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #2
  %.not10 = icmp eq i64 %4, 0
  br i1 %.not10, label %._crit_edge, label %.lr.ph

5:                                                ; preds = %3
  tail call void @__assert_fail(ptr noundef nonnull @.str.7, ptr noundef nonnull @.str.1, i32 noundef 174, ptr noundef nonnull @__PRETTY_FUNCTION__._ZN10SAPDecoder10SetDampingEfPSt6vectorIfSaIfEE) #3
  unreachable

._crit_edge:                                      ; preds = %.lr.ph, %.preheader
  ret void

.lr.ph:                                           ; preds = %.preheader, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %.preheader ]
  %6 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIfSaIfEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv) #2
  %7 = load float, ptr %6, align 4, !tbaa !5
  %8 = fmul float %7, %1
  store float %8, ptr %6, align 4, !tbaa !5
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %9 = tail call noundef i64 @_ZNKSt6vectorIfSaIfEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #2
  %10 = icmp ugt i64 %9, %indvars.iv.next
  br i1 %10, label %.lr.ph, label %._crit_edge, !llvm.loop !9
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorIfSaIfEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #1 align 2

attributes #0 = { noreturn 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 #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 = { nounwind }
attributes #3 = { noreturn 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 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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