; LLVM IR from HRI-EU/Rcs :: src/RcsCore (Rcs_timer)

; 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"

; 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
declare dso_local double @Timer_getSystemTime() #1

; Function Attrs: nounwind uwtable
define dso_local void @Timer_waitDT(double noundef %0) #1 {
  %2 = alloca double, align 8
  %3 = alloca double, align 8
  store double %0, ptr %2, align 8, !tbaa !5
  %4 = load double, ptr %2, align 8, !tbaa !5
  %5 = fcmp ole double %4, 0.000000e+00
  br i1 %5, label %6, label %7

6:                                                ; preds = %1
  br label %17

7:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #2
  %8 = call double @Timer_getSystemTime()
  store double %8, ptr %3, align 8, !tbaa !5
  br label %9

9:                                                ; preds = %10, %7
  call void @Timer_usleep(i64 noundef 100)
  br label %10

10:                                               ; preds = %9
  %11 = call double @Timer_getSystemTime()
  %12 = load double, ptr %3, align 8, !tbaa !5
  %13 = fsub double %11, %12
  %14 = load double, ptr %2, align 8, !tbaa !5
  %15 = fcmp olt double %13, %14
  br i1 %15, label %9, label %16, !llvm.loop !9

16:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #2
  br label %17

17:                                               ; preds = %16, %6
  ret void
}

; Function Attrs: nounwind uwtable
declare dso_local void @Timer_usleep(i64 noundef) #1

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 = { 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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"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"

; Function Attrs: nounwind uwtable
declare dso_local double @Timer_getSystemTime() local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @Timer_waitDT(double noundef %0) local_unnamed_addr #0 {
  %2 = fcmp ugt double %0, 0.000000e+00
  br i1 %2, label %3, label %.loopexit

3:                                                ; preds = %1
  %4 = tail call double @Timer_getSystemTime()
  br label %5

5:                                                ; preds = %5, %3
  tail call void @Timer_usleep(i64 noundef 100)
  %6 = tail call double @Timer_getSystemTime()
  %7 = fsub double %6, %4
  %8 = fcmp olt double %7, %0
  br i1 %8, label %5, label %.loopexit, !llvm.loop !5

.loopexit:                                        ; preds = %5, %1
  ret void
}

; Function Attrs: nounwind uwtable
declare dso_local void @Timer_usleep(i64 noundef) local_unnamed_addr #0

attributes #0 = { 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" }

!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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass