; LLVM IR from cjmcv/hpc :: coroutine/libco/libco/src/co_routine.ll (Z12AllocTimeouti)

; 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.stTimeout_t = type { ptr, i32, i64, i64 }

; 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 allocsize(0,1)
declare noalias ptr @calloc(i64 noundef, i64 noundef) #1

; Function Attrs: mustprogress uwtable
define dso_local noundef ptr @_Z12AllocTimeouti(i32 noundef %0) #2 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  %4 = call noalias ptr @calloc(i64 noundef 1, i64 noundef 32) #5
  store ptr %4, ptr %3, align 8, !tbaa !9
  %5 = load i32, ptr %2, align 4, !tbaa !5
  %6 = load ptr, ptr %3, align 8, !tbaa !9
  %7 = getelementptr inbounds %struct.stTimeout_t, ptr %6, i32 0, i32 1
  store i32 %5, ptr %7, align 8, !tbaa !11
  %8 = load ptr, ptr %3, align 8, !tbaa !9
  %9 = getelementptr inbounds %struct.stTimeout_t, ptr %8, i32 0, i32 1
  %10 = load i32, ptr %9, align 8, !tbaa !11
  %11 = sext i32 %10 to i64
  %12 = mul i64 16, %11
  %13 = call noalias ptr @calloc(i64 noundef 1, i64 noundef %12) #5
  %14 = load ptr, ptr %3, align 8, !tbaa !9
  %15 = getelementptr inbounds %struct.stTimeout_t, ptr %14, i32 0, i32 0
  store ptr %13, ptr %15, align 8, !tbaa !14
  %16 = call noundef i64 @_ZL9GetTickMSv()
  %17 = load ptr, ptr %3, align 8, !tbaa !9
  %18 = getelementptr inbounds %struct.stTimeout_t, ptr %17, i32 0, i32 2
  store i64 %16, ptr %18, align 8, !tbaa !15
  %19 = load ptr, ptr %3, align 8, !tbaa !9
  %20 = getelementptr inbounds %struct.stTimeout_t, ptr %19, i32 0, i32 3
  store i64 0, ptr %20, align 8, !tbaa !16
  %21 = load ptr, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  ret ptr %21
}

; Function Attrs: mustprogress nounwind uwtable
declare hidden noundef i64 @_ZL9GetTickMSv() #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nounwind allocsize(0,1) "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 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 = { 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 #4 = { nounwind }
attributes #5 = { nounwind allocsize(0,1) }

!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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !6, i64 8}
!12 = !{!"_ZTS11stTimeout_t", !10, i64 0, !6, i64 8, !13, i64 16, !13, i64 24}
!13 = !{!"long long", !7, i64 0}
!14 = !{!12, !10, i64 0}
!15 = !{!12, !13, i64 16}
!16 = !{!12, !13, i64 24}


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

; Function Attrs: mustprogress nounwind uwtable
define dso_local noalias noundef ptr @_Z12AllocTimeouti(i32 noundef %0) local_unnamed_addr #1 {
  %2 = tail call noalias dereferenceable_or_null(32) ptr @calloc(i64 noundef 1, i64 noundef 32) #2
  %3 = getelementptr inbounds i8, ptr %2, i64 8
  store i32 %0, ptr %3, align 8, !tbaa !5
  %4 = sext i32 %0 to i64
  %5 = shl nsw i64 %4, 4
  %6 = tail call noalias ptr @calloc(i64 noundef 1, i64 noundef %5) #2
  store ptr %6, ptr %2, align 8, !tbaa !12
  %7 = tail call noundef i64 @_ZL9GetTickMSv()
  %8 = getelementptr inbounds i8, ptr %2, i64 16
  store i64 %7, ptr %8, align 8, !tbaa !13
  ret ptr %2
}

; Function Attrs: mustprogress nounwind uwtable
declare hidden noundef i64 @_ZL9GetTickMSv() local_unnamed_addr #1

attributes #0 = { mustprogress nofree nounwind willreturn allockind("alloc,zeroed") allocsize(0,1) 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 #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 allocsize(0,1) }

!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, !10, i64 8}
!6 = !{!"_ZTS11stTimeout_t", !7, i64 0, !10, i64 8, !11, i64 16, !11, i64 24}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"int", !8, i64 0}
!11 = !{!"long long", !8, i64 0}
!12 = !{!6, !7, i64 0}
!13 = !{!6, !11, i64 16}


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