; LLVM IR from upupming/algorithm :: acwing/算法竞赛进阶指南/0x17-二叉堆/145. 超市.ll (Z6insertSt4pairIiiE)

; 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 { i32, i32 }

@tot = external dso_local global i32, align 4
@heap = external dso_local global [10010 x %"struct.std::pair"], align 16

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z2upi(i32 noundef) #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z6insertSt4pairIiiE(i64 %0) #0 {
  %2 = alloca %"struct.std::pair", align 4
  store i64 %0, ptr %2, align 4
  %3 = load i32, ptr @tot, align 4, !tbaa !5
  %4 = add nsw i32 %3, 1
  store i32 %4, ptr @tot, align 4, !tbaa !5
  %5 = sext i32 %4 to i64
  %6 = getelementptr inbounds [10010 x %"struct.std::pair"], ptr @heap, i64 0, i64 %5
  %7 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSERKS0_(ptr noundef nonnull align 4 dereferenceable(8) %6, ptr noundef nonnull align 4 dereferenceable(8) %2)
  %8 = load i32, ptr @tot, align 4, !tbaa !5
  call void @_Z2upi(i32 noundef %8)
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSERKS0_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) #1 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" }
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" }

!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"}


; 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.std::pair" = type { i32, i32 }

@tot = external dso_local local_unnamed_addr global i32, align 4
@heap = external dso_local global [10010 x %"struct.std::pair"], align 16

; Function Attrs: mustprogress uwtable
declare dso_local void @_Z2upi(i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local void @_Z6insertSt4pairIiiE(i64 %0) local_unnamed_addr #0 {
  %2 = alloca %"struct.std::pair", align 8
  store i64 %0, ptr %2, align 8
  %3 = load i32, ptr @tot, align 4, !tbaa !5
  %4 = add nsw i32 %3, 1
  store i32 %4, ptr @tot, align 4, !tbaa !5
  %5 = sext i32 %4 to i64
  %6 = getelementptr inbounds [10010 x %"struct.std::pair"], ptr @heap, i64 0, i64 %5
  %7 = call noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSERKS0_(ptr noundef nonnull align 4 dereferenceable(8) %6, ptr noundef nonnull align 4 dereferenceable(8) %2)
  %8 = load i32, ptr @tot, align 4, !tbaa !5
  call void @_Z2upi(i32 noundef %8)
  ret void
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(8) ptr @_ZNSt4pairIiiEaSERKS0_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #1 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" }
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" }

!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"}


; Effective O3 passes: GlobalOptPass,InferAlignmentPass