; LLVM IR from stan-dev/math :: lib/sundials_6.1.1/benchmarks/nvector (test_nvector_performance)

; 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"

@print_time = external dso_local global i32, align 4
@nextra = external dso_local global i32, align 4
@.str = external hidden unnamed_addr constant [38 x i8], align 1
@.str.17 = external hidden unnamed_addr constant [9 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: nounwind allocsize(0)
declare noalias ptr @malloc(i64 noundef) #1

declare void @ClearCache(...) #2

declare void @sync_device(ptr noundef) #2

; Function Attrs: nounwind uwtable
declare hidden void @time_stats(ptr noundef, ptr noundef, i32 noundef, i32 noundef, ptr noundef, ptr noundef, ptr noundef, ptr noundef) #3

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

; Function Attrs: nounwind
declare i32 @rand() #4

declare void @N_VConst(double noundef, ptr noundef) #2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #5

; Function Attrs: nounwind
declare void @free(ptr noundef) #4

; 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 i32 @Test_N_VConst(ptr noundef %0, i64 noundef %1, i32 noundef %2) #3 {
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca i32, align 4
  %7 = alloca double, align 8
  %8 = alloca double, align 8
  %9 = alloca ptr, align 8
  %10 = alloca double, align 8
  %11 = alloca double, align 8
  %12 = alloca double, align 8
  %13 = alloca double, align 8
  %14 = alloca double, align 8
  %15 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i64 %1, ptr %5, align 8, !tbaa !9
  store i32 %2, ptr %6, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #6
  call void @llvm.lifetime.start.p0(i64 4, ptr %15) #6
  %16 = load i32, ptr %6, align 4, !tbaa !11
  %17 = load i32, ptr @nextra, align 4, !tbaa !11
  %18 = add nsw i32 %16, %17
  %19 = sext i32 %18 to i64
  %20 = mul i64 %19, 8
  %21 = call noalias ptr @malloc(i64 noundef %20) #7
  store ptr %21, ptr %9, align 8, !tbaa !5
  store i32 0, ptr %15, align 4, !tbaa !11
  br label %22

22:                                               ; preds = %45, %3
  %23 = load i32, ptr %15, align 4, !tbaa !11
  %24 = load i32, ptr %6, align 4, !tbaa !11
  %25 = load i32, ptr @nextra, align 4, !tbaa !11
  %26 = add nsw i32 %24, %25
  %27 = icmp slt i32 %23, %26
  br i1 %27, label %28, label %48

28:                                               ; preds = %22
  %29 = call i32 @rand() #6
  %30 = sitofp i32 %29 to double
  %31 = fdiv double %30, 0x41DFFFFFFFC00000
  %32 = call double @llvm.fmuladd.f64(double 2.000000e+00, double %31, double -1.000000e+00)
  store double %32, ptr %14, align 8, !tbaa !13
  call void (...) @ClearCache()
  %33 = call double @get_time()
  store double %33, ptr %7, align 8, !tbaa !13
  %34 = load double, ptr %14, align 8, !tbaa !13
  %35 = load ptr, ptr %4, align 8, !tbaa !5
  call void @N_VConst(double noundef %34, ptr noundef %35)
  %36 = load ptr, ptr %4, align 8, !tbaa !5
  call void @sync_device(ptr noundef %36)
  %37 = call double @get_time()
  store double %37, ptr %8, align 8, !tbaa !13
  %38 = load double, ptr %8, align 8, !tbaa !13
  %39 = load double, ptr %7, align 8, !tbaa !13
  %40 = fsub double %38, %39
  %41 = load ptr, ptr %9, align 8, !tbaa !5
  %42 = load i32, ptr %15, align 4, !tbaa !11
  %43 = sext i32 %42 to i64
  %44 = getelementptr inbounds double, ptr %41, i64 %43
  store double %40, ptr %44, align 8, !tbaa !13
  br label %45

45:                                               ; preds = %28
  %46 = load i32, ptr %15, align 4, !tbaa !11
  %47 = add nsw i32 %46, 1
  store i32 %47, ptr %15, align 4, !tbaa !11
  br label %22, !llvm.loop !15

48:                                               ; preds = %22
  %49 = load ptr, ptr %4, align 8, !tbaa !5
  %50 = load ptr, ptr %9, align 8, !tbaa !5
  %51 = load i32, ptr @nextra, align 4, !tbaa !11
  %52 = load i32, ptr %6, align 4, !tbaa !11
  call void @time_stats(ptr noundef %49, ptr noundef %50, i32 noundef %51, i32 noundef %52, ptr noundef %10, ptr noundef %11, ptr noundef %12, ptr noundef %13)
  %53 = load i32, ptr @print_time, align 4, !tbaa !11
  %54 = icmp ne i32 %53, 0
  br i1 %54, label %55, label %61

55:                                               ; preds = %48
  %56 = load double, ptr %10, align 8, !tbaa !13
  %57 = load double, ptr %11, align 8, !tbaa !13
  %58 = load double, ptr %12, align 8, !tbaa !13
  %59 = load double, ptr %13, align 8, !tbaa !13
  %60 = call i32 (ptr, ...) @printf(ptr noundef @.str, ptr noundef @.str.17, double noundef %56, double noundef %57, double noundef %58, double noundef %59)
  br label %61

61:                                               ; preds = %55, %48
  %62 = load ptr, ptr %9, align 8, !tbaa !5
  call void @free(ptr noundef %62) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %15) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  ret i32 0
}

; Function Attrs: nounwind uwtable
declare hidden double @get_time() #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nounwind allocsize(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 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 #4 = { 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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #6 = { nounwind }
attributes #7 = { nounwind allocsize(0) }

!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 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!14, !14, i64 0}
!14 = !{!"double", !7, i64 0}
!15 = distinct !{!15, !16}
!16 = !{!"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"

@print_time = external dso_local local_unnamed_addr global i32, align 4
@nextra = external dso_local local_unnamed_addr global i32, align 4
@.str = external hidden unnamed_addr constant [38 x i8], align 1
@.str.17 = external hidden unnamed_addr constant [9 x i8], align 1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite)
declare noalias noundef ptr @malloc(i64 noundef) local_unnamed_addr #1

declare void @ClearCache(...) local_unnamed_addr #2

declare void @sync_device(ptr noundef) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare hidden void @time_stats(ptr noundef, ptr noundef, i32 noundef, i32 noundef, ptr noundef, ptr 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

; Function Attrs: nounwind
declare i32 @rand() local_unnamed_addr #5

declare void @N_VConst(double noundef, ptr noundef) local_unnamed_addr #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #6

; Function Attrs: mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite)
declare void @free(ptr allocptr nocapture noundef) local_unnamed_addr #7

; Function Attrs: mustprogress 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 noundef i32 @Test_N_VConst(ptr noundef %0, i64 noundef %1, i32 noundef %2) local_unnamed_addr #3 {
  %4 = alloca double, align 8
  %5 = alloca double, align 8
  %6 = alloca double, align 8
  %7 = alloca double, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #8
  %8 = load i32, ptr @nextra, align 4, !tbaa !5
  %9 = add nsw i32 %8, %2
  %10 = sext i32 %9 to i64
  %11 = shl nsw i64 %10, 3
  %12 = tail call noalias ptr @malloc(i64 noundef %11) #9
  %13 = icmp sgt i32 %9, 0
  br i1 %13, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %3, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %3 ]
  %14 = tail call i32 @rand() #8
  %15 = sitofp i32 %14 to double
  %16 = fdiv double %15, 0x41DFFFFFFFC00000
  %17 = tail call double @llvm.fmuladd.f64(double %16, double 2.000000e+00, double -1.000000e+00)
  tail call void (...) @ClearCache() #8
  %18 = tail call double @get_time()
  tail call void @N_VConst(double noundef %17, ptr noundef %0) #8
  tail call void @sync_device(ptr noundef %0) #8
  %19 = tail call double @get_time()
  %20 = fsub double %19, %18
  %21 = getelementptr inbounds double, ptr %12, i64 %indvars.iv
  store double %20, ptr %21, align 8, !tbaa !9
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %22 = load i32, ptr @nextra, align 4, !tbaa !5
  %23 = add nsw i32 %22, %2
  %24 = sext i32 %23 to i64
  %25 = icmp slt i64 %indvars.iv.next, %24
  br i1 %25, label %.lr.ph, label %._crit_edge, !llvm.loop !11

._crit_edge:                                      ; preds = %.lr.ph, %3
  %.lcssa = phi i32 [ %8, %3 ], [ %22, %.lr.ph ]
  call void @time_stats(ptr noundef %0, ptr noundef %12, i32 noundef %.lcssa, i32 noundef %2, ptr noundef nonnull %4, ptr noundef nonnull %5, ptr noundef nonnull %6, ptr noundef nonnull %7)
  %26 = load i32, ptr @print_time, align 4, !tbaa !5
  %.not = icmp eq i32 %26, 0
  br i1 %.not, label %33, label %27

27:                                               ; preds = %._crit_edge
  %28 = load double, ptr %4, align 8, !tbaa !9
  %29 = load double, ptr %5, align 8, !tbaa !9
  %30 = load double, ptr %6, align 8, !tbaa !9
  %31 = load double, ptr %7, align 8, !tbaa !9
  %32 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str, ptr noundef nonnull @.str.17, double noundef %28, double noundef %29, double noundef %30, double noundef %31)
  br label %33

33:                                               ; preds = %27, %._crit_edge
  call void @free(ptr noundef %12) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #8
  ret i32 0
}

; Function Attrs: nounwind uwtable
declare hidden double @get_time() local_unnamed_addr #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nofree nounwind willreturn allockind("alloc,uninitialized") allocsize(0) memory(inaccessiblemem: readwrite) "alloc-family"="malloc" "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 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 #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 "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 #6 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #7 = { mustprogress nounwind willreturn allockind("free") memory(argmem: readwrite, inaccessiblemem: readwrite) "alloc-family"="malloc" "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 #8 = { nounwind }
attributes #9 = { nounwind allocsize(0) }

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


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