; LLVM IR from ctlst-tech/catpilot :: os/freertos/osa/FreeRTOS-Plus-POSIX/source (FreeRTOS_POSIX_clock)

; 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.xTIME_OUT = type { i64, i32 }

; Function Attrs: nounwind uwtable
define dso_local i32 @clock_gettime(i32 noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca ptr, align 8
  %5 = alloca %struct.xTIME_OUT, align 8
  %6 = alloca i64, align 8
  store i32 %0, ptr %3, align 4, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 16, ptr %5) #4
  call void @llvm.memset.p0.i64(ptr align 8 %5, i8 0, i64 16, i1 false)
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  store i64 0, ptr %6, align 8, !tbaa !11
  %7 = load i32, ptr %3, align 4, !tbaa !5
  call void @vTaskSetTimeOutState(ptr noundef %5)
  %8 = getelementptr inbounds %struct.xTIME_OUT, ptr %5, i32 0, i32 0
  %9 = load i64, ptr %8, align 8, !tbaa !13
  %10 = shl i64 %9, 32
  store i64 %10, ptr %6, align 8, !tbaa !11
  %11 = getelementptr inbounds %struct.xTIME_OUT, ptr %5, i32 0, i32 1
  %12 = load i32, ptr %11, align 8, !tbaa !15
  %13 = zext i32 %12 to i64
  %14 = load i64, ptr %6, align 8, !tbaa !11
  %15 = add i64 %14, %13
  store i64 %15, ptr %6, align 8, !tbaa !11
  %16 = load i64, ptr %6, align 8, !tbaa !11
  %17 = mul nsw i64 %16, 1000000
  %18 = load ptr, ptr %4, align 8, !tbaa !9
  call void @UTILS_NanosecondsToTimespec(i64 noundef %17, ptr noundef %18)
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 16, ptr %5) #4
  ret i32 0
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

declare void @vTaskSetTimeOutState(ptr noundef) #3

declare void @UTILS_NanosecondsToTimespec(i64 noundef, ptr noundef) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { "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 }

!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 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!14, !12, i64 0}
!14 = !{!"xTIME_OUT", !12, i64 0, !6, i64 8}
!15 = !{!14, !6, i64 8}


; 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.xTIME_OUT = type { i64, i32 }

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @clock_gettime(i32 noundef %0, ptr noundef %1) local_unnamed_addr #0 {
  %3 = alloca %struct.xTIME_OUT, align 8
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %3) #4
  call void @llvm.memset.p0.i64(ptr noundef nonnull align 8 dereferenceable(16) %3, i8 0, i64 16, i1 false)
  call void @vTaskSetTimeOutState(ptr noundef nonnull %3) #4
  %4 = load i64, ptr %3, align 8, !tbaa !5
  %5 = shl i64 %4, 32
  %6 = getelementptr inbounds i8, ptr %3, i64 8
  %7 = load i32, ptr %6, align 8, !tbaa !11
  %8 = zext i32 %7 to i64
  %9 = or disjoint i64 %5, %8
  %10 = mul nsw i64 %9, 1000000
  call void @UTILS_NanosecondsToTimespec(i64 noundef %10, ptr noundef %1) #4
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #4
  ret i32 0
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2

declare void @vTaskSetTimeOutState(ptr noundef) local_unnamed_addr #3

declare void @UTILS_NanosecondsToTimespec(i64 noundef, ptr noundef) local_unnamed_addr #3

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #3 = { "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 }

!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 = !{!"xTIME_OUT", !7, i64 0, !10, i64 8}
!7 = !{!"long", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!6, !10, i64 8}


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