; LLVM IR from QAQdev/mini-sql-engine :: thirdparty/googletest/test (googletest-port-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.std::pair" = type <{ ptr, i32, [4 x i8] }>

; 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 uwtable
define dso_local void @_ZN7testing8internal18CountingThreadFuncESt4pairIPNS0_22AtomicCounterWithMutexEiE(ptr %0, i32 %1) #1 {
  %3 = alloca %"struct.std::pair", align 8
  %4 = alloca i32, align 4
  %5 = getelementptr inbounds { ptr, i32 }, ptr %3, i32 0, i32 0
  store ptr %0, ptr %5, align 8
  %6 = getelementptr inbounds { ptr, i32 }, ptr %3, i32 0, i32 1
  store i32 %1, ptr %6, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #2
  store i32 0, ptr %4, align 4, !tbaa !5
  br label %7

7:                                                ; preds = %16, %2
  %8 = load i32, ptr %4, align 4, !tbaa !5
  %9 = getelementptr inbounds %"struct.std::pair", ptr %3, i32 0, i32 1
  %10 = load i32, ptr %9, align 8, !tbaa !9
  %11 = icmp slt i32 %8, %10
  br i1 %11, label %13, label %12

12:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #2
  br label %19

13:                                               ; preds = %7
  %14 = getelementptr inbounds %"struct.std::pair", ptr %3, i32 0, i32 0
  %15 = load ptr, ptr %14, align 8, !tbaa !12
  call void @_ZN7testing8internal22AtomicCounterWithMutex9IncrementEv(ptr noundef nonnull align 8 dereferenceable(20) %15)
  br label %16

16:                                               ; preds = %13
  %17 = load i32, ptr %4, align 4, !tbaa !5
  %18 = add nsw i32 %17, 1
  store i32 %18, ptr %4, align 4, !tbaa !5
  br label %7, !llvm.loop !13

19:                                               ; preds = %12
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7testing8internal22AtomicCounterWithMutex9IncrementEv(ptr noundef nonnull align 8 dereferenceable(20)) #1 align 2

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !6, i64 8}
!10 = !{!"_ZTSSt4pairIPN7testing8internal22AtomicCounterWithMutexEiE", !11, i64 0, !6, i64 8}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!10, !11, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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 uwtable
define dso_local void @_ZN7testing8internal18CountingThreadFuncESt4pairIPNS0_22AtomicCounterWithMutexEiE(ptr %0, i32 %1) local_unnamed_addr #0 {
  %3 = icmp sgt i32 %1, 0
  br i1 %3, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %2
  ret void

.lr.ph:                                           ; preds = %2, %.lr.ph
  %.02 = phi i32 [ %4, %.lr.ph ], [ 0, %2 ]
  tail call void @_ZN7testing8internal22AtomicCounterWithMutex9IncrementEv(ptr noundef nonnull align 8 dereferenceable(20) %0)
  %4 = add nuw nsw i32 %.02, 1
  %exitcond.not = icmp eq i32 %4, %1
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5
}

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZN7testing8internal22AtomicCounterWithMutex9IncrementEv(ptr noundef nonnull align 8 dereferenceable(20)) local_unnamed_addr #0 align 2

attributes #0 = { 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" }

!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,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass