; LLVM IR from cornell-zhang/rosetta :: BNN/cpp/utils/Timer.ll (ZN5Timer4stopEv)

; 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.timeval = type { i64, i64 }
%class.Timer = type <{ [50 x i8], [2 x i8], i32, %struct.timeval, float, [4 x i8] }>

; Function Attrs: nounwind
declare i32 @gettimeofday(ptr noundef, ptr noundef) #0

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN5Timer4stopEv(ptr noundef nonnull align 8 dereferenceable(76) %0) #1 align 2 {
  %2 = alloca ptr, align 8
  %3 = alloca %struct.timeval, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %4 = load ptr, ptr %2, align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr %3) #4
  %5 = call i32 @gettimeofday(ptr noundef %3, ptr noundef null) #4
  %6 = getelementptr inbounds %struct.timeval, ptr %3, i32 0, i32 0
  %7 = load i64, ptr %6, align 8, !tbaa !9
  %8 = getelementptr inbounds %class.Timer, ptr %4, i32 0, i32 3
  %9 = getelementptr inbounds %struct.timeval, ptr %8, i32 0, i32 0
  %10 = load i64, ptr %9, align 8, !tbaa !12
  %11 = sub nsw i64 %7, %10
  %12 = sitofp i64 %11 to float
  %13 = fpext float %12 to double
  %14 = getelementptr inbounds %struct.timeval, ptr %3, i32 0, i32 1
  %15 = load i64, ptr %14, align 8, !tbaa !16
  %16 = sitofp i64 %15 to float
  %17 = fpext float %16 to double
  %18 = call double @llvm.fmuladd.f64(double %17, double 0x3EB0C6F7A0B5ED8D, double %13)
  %19 = getelementptr inbounds %class.Timer, ptr %4, i32 0, i32 3
  %20 = getelementptr inbounds %struct.timeval, ptr %19, i32 0, i32 1
  %21 = load i64, ptr %20, align 8, !tbaa !17
  %22 = sitofp i64 %21 to float
  %23 = fpext float %22 to double
  %24 = fneg double %23
  %25 = call double @llvm.fmuladd.f64(double %24, double 0x3EB0C6F7A0B5ED8D, double %18)
  %26 = getelementptr inbounds %class.Timer, ptr %4, i32 0, i32 4
  %27 = load float, ptr %26, align 8, !tbaa !18
  %28 = fpext float %27 to double
  %29 = fadd double %28, %25
  %30 = fptrunc double %29 to float
  store float %30, ptr %26, align 8, !tbaa !18
  call void @llvm.lifetime.end.p0(i64 16, ptr %3) #4
  ret void
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

attributes #0 = { 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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, !11, i64 0}
!10 = !{!"_ZTS7timeval", !11, i64 0, !11, i64 8}
!11 = !{!"long", !7, i64 0}
!12 = !{!13, !11, i64 56}
!13 = !{!"_ZTS5Timer", !7, i64 0, !14, i64 52, !10, i64 56, !15, i64 72}
!14 = !{!"int", !7, i64 0}
!15 = !{!"float", !7, i64 0}
!16 = !{!10, !11, i64 8}
!17 = !{!13, !11, i64 64}
!18 = !{!13, !15, i64 72}


; 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"

%struct.timeval = type { i64, i64 }

; Function Attrs: nofree nounwind
declare noundef i32 @gettimeofday(ptr nocapture noundef, ptr nocapture noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nofree nounwind uwtable
define dso_local void @_ZN5Timer4stopEv(ptr nocapture noundef nonnull align 8 dereferenceable(76) %0) local_unnamed_addr #1 align 2 {
  %2 = alloca %struct.timeval, align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %2) #4
  %3 = call i32 @gettimeofday(ptr noundef nonnull %2, ptr noundef null) #4
  %4 = load i64, ptr %2, align 8, !tbaa !5
  %5 = getelementptr inbounds i8, ptr %0, i64 56
  %6 = load i64, ptr %5, align 8, !tbaa !10
  %7 = sub nsw i64 %4, %6
  %8 = sitofp i64 %7 to float
  %9 = fpext float %8 to double
  %10 = getelementptr inbounds i8, ptr %2, i64 8
  %11 = load i64, ptr %10, align 8, !tbaa !14
  %12 = sitofp i64 %11 to float
  %13 = fpext float %12 to double
  %14 = tail call double @llvm.fmuladd.f64(double %13, double 0x3EB0C6F7A0B5ED8D, double %9)
  %15 = getelementptr inbounds i8, ptr %0, i64 64
  %16 = load i64, ptr %15, align 8, !tbaa !15
  %17 = sitofp i64 %16 to float
  %18 = fpext float %17 to double
  %19 = fneg double %18
  %20 = tail call double @llvm.fmuladd.f64(double %19, double 0x3EB0C6F7A0B5ED8D, double %14)
  %21 = getelementptr inbounds i8, ptr %0, i64 72
  %22 = load float, ptr %21, align 8, !tbaa !16
  %23 = fpext float %22 to double
  %24 = fadd double %20, %23
  %25 = fptrunc double %24 to float
  store float %25, ptr %21, align 8, !tbaa !16
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %2) #4
  ret void
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #2

attributes #0 = { 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 #1 = { mustprogress 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 #2 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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, !7, i64 0}
!6 = !{!"_ZTS7timeval", !7, i64 0, !7, i64 8}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!11, !7, i64 56}
!11 = !{!"_ZTS5Timer", !8, i64 0, !12, i64 52, !6, i64 56, !13, i64 72}
!12 = !{!"int", !8, i64 0}
!13 = !{!"float", !8, i64 0}
!14 = !{!6, !7, i64 8}
!15 = !{!11, !7, i64 64}
!16 = !{!11, !13, i64 72}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,TailCallElimPass