; LLVM IR from goldsborough/ipc-bench :: source/other (pthread-test)

; 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.Task = type { i32, i32 }

@__const.parallel_add.first_task = external hidden unnamed_addr constant %struct.Task, align 4

; Function Attrs: nounwind uwtable
declare dso_local void @create_thread(ptr noundef, ptr noundef, ptr noundef) #0

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

; Function Attrs: nounwind uwtable
define dso_local void @parallel_add() #0 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca %struct.Task, align 4
  %4 = alloca %struct.Task, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %3, ptr align 4 @__const.parallel_add.first_task, i64 8, i1 false)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  %5 = getelementptr inbounds %struct.Task, ptr %4, i32 0, i32 0
  %6 = getelementptr inbounds %struct.Task, ptr %3, i32 0, i32 1
  %7 = load i32, ptr %6, align 4, !tbaa !5
  store i32 %7, ptr %5, align 4, !tbaa !10
  %8 = getelementptr inbounds %struct.Task, ptr %4, i32 0, i32 1
  store i32 10, ptr %8, align 4, !tbaa !5
  call void @create_thread(ptr noundef %1, ptr noundef @add, ptr noundef %3)
  call void @create_thread(ptr noundef %2, ptr noundef @add, ptr noundef %4)
  %9 = load i64, ptr %1, align 8, !tbaa !11
  %10 = call i32 @pthread_join(i64 noundef %9, ptr noundef null)
  %11 = load i64, ptr %2, align 8, !tbaa !11
  %12 = call i32 @pthread_join(i64 noundef %11, ptr noundef null)
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #4
  ret void
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #2

declare i32 @pthread_join(i64 noundef, ptr noundef) #3

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: readwrite) }
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 4}
!6 = !{!"Task", !7, i64 0, !7, i64 4}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!6, !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !8, i64 0}


; 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.Task = type { i32, i32 }

@__const.parallel_add.first_task = external hidden unnamed_addr constant %struct.Task, align 4

; Function Attrs: nounwind uwtable
declare dso_local void @create_thread(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #0

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

; Function Attrs: nounwind uwtable
define dso_local void @parallel_add() local_unnamed_addr #0 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca %struct.Task, align 8
  %4 = alloca %struct.Task, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %5 = load i64, ptr @__const.parallel_add.first_task, align 4
  store i64 %5, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %6 = lshr i64 %5, 32
  %7 = trunc nuw i64 %6 to i32
  store i32 %7, ptr %4, align 4, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %4, i64 4
  store i32 10, ptr %8, align 4, !tbaa !10
  call void @create_thread(ptr noundef nonnull %1, ptr noundef nonnull @add, ptr noundef nonnull %3)
  call void @create_thread(ptr noundef nonnull %2, ptr noundef nonnull @add, ptr noundef nonnull %4)
  %9 = load i64, ptr %1, align 8, !tbaa !11
  %10 = call i32 @pthread_join(i64 noundef %9, ptr noundef null) #3
  %11 = load i64, ptr %2, align 8, !tbaa !11
  %12 = call i32 @pthread_join(i64 noundef %11, ptr noundef null) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #3
  ret void
}

declare i32 @pthread_join(i64 noundef, ptr noundef) local_unnamed_addr #2

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 = { "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 }

!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 = !{!"Task", !7, i64 0, !7, i64 4}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!6, !7, i64 4}
!11 = !{!12, !12, i64 0}
!12 = !{!"long", !8, i64 0}


; Effective O3 passes: BDCEPass,EarlyCSEPass,GVNPass,GlobalOptPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,SCCPPass