; LLVM IR from hbatagelo/abcg :: abcg/external/glslang/SPIRV/SPVRemapper.ll (ZNK3spv10spirvbin_t10constRangeENS_2OpE)

; 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 }

@_ZZNK3spv10spirvbin_t10constRangeENS_2OpEE8maxCount = external hidden constant i32, align 4

; 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
declare dso_local void @_ZNSt4pairIjjEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIjjEC2IiRKiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS5_S6_EEEbE4typeELb1EEEOS5_OS6_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local i64 @_ZNK3spv10spirvbin_t10constRangeENS_2OpE(ptr noundef nonnull align 8 dereferenceable(473) %0, i32 noundef %1) #2 align 2 {
  %3 = alloca %"struct.std::pair", align 4
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  %11 = load ptr, ptr %4, align 8
  %12 = load i32, ptr %5, align 4, !tbaa !9
  switch i32 %12, label %15 [
    i32 28, label %13
    i32 29, label %13
    i32 44, label %14
  ]

13:                                               ; preds = %2, %2
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #3
  store i32 3, ptr %6, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  store i32 4, ptr %7, align 4, !tbaa !11
  call void @_ZNSt4pairIjjEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(4) %6, ptr noundef nonnull align 4 dereferenceable(4) %7)
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #3
  br label %16

14:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #3
  store i32 3, ptr %8, align 4, !tbaa !11
  call void @_ZNSt4pairIjjEC2IiRKiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS5_S6_EEEbE4typeELb1EEEOS5_OS6_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(4) %8, ptr noundef nonnull align 4 dereferenceable(4) @_ZZNK3spv10spirvbin_t10constRangeENS_2OpEE8maxCount)
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #3
  br label %16

15:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  store i32 0, ptr %9, align 4, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #3
  store i32 0, ptr %10, align 4, !tbaa !11
  call void @_ZNSt4pairIjjEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(4) %9, ptr noundef nonnull align 4 dereferenceable(4) %10)
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  br label %16

16:                                               ; preds = %15, %14, %13
  %17 = load i64, ptr %3, align 4
  ret i64 %17
}

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 = { 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 = { 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 = !{!"_ZTSN3spv2OpE", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, 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.std::pair" = type { i32, i32 }

@_ZZNK3spv10spirvbin_t10constRangeENS_2OpEE8maxCount = external hidden constant i32, align 4

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIjjEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIjjEC2IiRKiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS5_S6_EEEbE4typeELb1EEEOS5_OS6_(ptr noundef nonnull align 4 dereferenceable(8), ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) unnamed_addr #1 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local i64 @_ZNK3spv10spirvbin_t10constRangeENS_2OpE(ptr nocapture noundef nonnull readnone align 8 dereferenceable(473) %0, i32 noundef %1) local_unnamed_addr #1 align 2 {
  %3 = alloca %"struct.std::pair", align 8
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  switch i32 %1, label %11 [
    i32 28, label %9
    i32 29, label %9
    i32 44, label %10
  ]

9:                                                ; preds = %2, %2
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #2
  store i32 3, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #2
  store i32 4, ptr %5, align 4, !tbaa !5
  call void @_ZNSt4pairIjjEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %5)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #2
  br label %12

10:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %6) #2
  store i32 3, ptr %6, align 4, !tbaa !5
  call void @_ZNSt4pairIjjEC2IiRKiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS5_S6_EEEbE4typeELb1EEEOS5_OS6_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(4) %6, ptr noundef nonnull align 4 dereferenceable(4) @_ZZNK3spv10spirvbin_t10constRangeENS_2OpEE8maxCount)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %6) #2
  br label %12

11:                                               ; preds = %2
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #2
  store i32 0, ptr %7, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %8) #2
  store i32 0, ptr %8, align 4, !tbaa !5
  call void @_ZNSt4pairIjjEC2IiiTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 4 dereferenceable(8) %3, ptr noundef nonnull align 4 dereferenceable(4) %7, ptr noundef nonnull align 4 dereferenceable(4) %8)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %8) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #2
  br label %12

12:                                               ; preds = %11, %10, %9
  %13 = load i64, ptr %3, align 8
  ret i64 %13
}

attributes #0 = { mustprogress 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: GlobalOptPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass