; LLVM IR from taichi-dev/taichi :: taichi/runtime/llvm/runtime_module (runtime)

; 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: mustprogress nounwind uwtable
define dso_local void @atomic_set_mask_b32(ptr noundef %0, i64 noundef %1, i32 noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i8, align 1
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i64 %1, ptr %5, align 8, !tbaa !9
  store i32 %2, ptr %6, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #2
  %11 = load i64, ptr %5, align 8, !tbaa !9
  %12 = trunc i64 %11 to i32
  store i32 %12, ptr %7, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  store i32 0, ptr %8, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #2
  %13 = load ptr, ptr %4, align 8, !tbaa !5
  %14 = load i32, ptr %13, align 4, !tbaa !11
  store i32 %14, ptr %9, align 4, !tbaa !11
  br label %15

15:                                               ; preds = %37, %3
  %16 = load ptr, ptr %4, align 8, !tbaa !5
  %17 = load i32, ptr %16, align 4, !tbaa !11
  store i32 %17, ptr %9, align 4, !tbaa !11
  %18 = load i32, ptr %9, align 4, !tbaa !11
  %19 = load i32, ptr %7, align 4, !tbaa !11
  %20 = xor i32 %19, -1
  %21 = and i32 %18, %20
  %22 = zext i32 %21 to i64
  %23 = load i32, ptr %6, align 4, !tbaa !11
  %24 = zext i32 %23 to i64
  %25 = load i64, ptr %5, align 8, !tbaa !9
  %26 = and i64 %24, %25
  %27 = or i64 %22, %26
  %28 = trunc i64 %27 to i32
  store i32 %28, ptr %8, align 4, !tbaa !11
  br label %29

29:                                               ; preds = %15
  %30 = load ptr, ptr %4, align 8, !tbaa !5
  %31 = load i32, ptr %9, align 4
  %32 = load i32, ptr %8, align 4
  %33 = cmpxchg weak ptr %30, i32 %31, i32 %32 seq_cst seq_cst, align 4
  %34 = extractvalue { i32, i1 } %33, 0
  %35 = extractvalue { i32, i1 } %33, 1
  br i1 %35, label %37, label %36

36:                                               ; preds = %29
  store i32 %34, ptr %9, align 4
  br label %37

37:                                               ; preds = %36, %29
  %38 = zext i1 %35 to i8
  store i8 %38, ptr %10, align 1, !tbaa !13
  %39 = load i8, ptr %10, align 1, !tbaa !13, !range !15, !noundef !16
  %40 = trunc i8 %39 to i1
  %41 = xor i1 %40, true
  br i1 %41, label %15, label %42, !llvm.loop !17

42:                                               ; preds = %37
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #2
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 }

!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, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!14, !14, i64 0}
!14 = !{!"bool", !7, i64 0}
!15 = !{i8 0, i8 2}
!16 = !{}
!17 = distinct !{!17, !18}
!18 = !{!"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: mustprogress nofree norecurse nounwind memory(argmem: readwrite) uwtable
define dso_local void @atomic_set_mask_b32(ptr nocapture noundef %0, i64 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = trunc i64 %1 to i32
  %5 = xor i32 %4, -1
  %6 = and i32 %4, %2
  br label %7

7:                                                ; preds = %7, %3
  %8 = load i32, ptr %0, align 4, !tbaa !5
  %9 = and i32 %8, %5
  %10 = or disjoint i32 %9, %6
  %11 = cmpxchg weak ptr %0, i32 %8, i32 %10 seq_cst seq_cst, align 4
  %12 = extractvalue { i32, i1 } %11, 1
  br i1 %12, label %13, label %7, !llvm.loop !9

13:                                               ; preds = %7
  ret void
}

attributes #0 = { mustprogress nofree norecurse nounwind memory(argmem: readwrite) 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 = !{!6, !6, i64 0}
!6 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


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