; LLVM IR from tevador/RandomX :: src/jit_compiler_x86.ll (ZN7randomx14JitCompilerX869h_ISWAP_RERNS_11InstructionEi)

; 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"

%"class.randomx::Instruction" = type { i8, i8, i8, i8, i32 }
%"class.randomx::JitCompilerX86" = type <{ %"class.std::vector", [8 x i32], ptr, i32, [4 x i8] }>
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }

@_ZN7randomxL8REX_XCHGE = external hidden constant [2 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7randomx14JitCompilerX864emitILm2EEEvRAT__Kh(ptr noundef nonnull align 8 dereferenceable(68), ptr noundef nonnull align 1 dereferenceable(2)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7randomx14JitCompilerX868emitByteEh(ptr noundef nonnull align 8 dereferenceable(68), i8 noundef zeroext) #0 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZN7randomx14JitCompilerX869h_ISWAP_RERNS_11InstructionEi(ptr noundef nonnull align 8 dereferenceable(68) %0, ptr noundef nonnull align 4 dereferenceable(8) %1, i32 noundef %2) #1 align 2 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store i32 %2, ptr %6, align 4, !tbaa !9
  %7 = load ptr, ptr %4, align 8
  %8 = load ptr, ptr %5, align 8, !tbaa !5
  %9 = getelementptr inbounds %"class.randomx::Instruction", ptr %8, i32 0, i32 2
  %10 = load i8, ptr %9, align 2, !tbaa !11
  %11 = zext i8 %10 to i32
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = getelementptr inbounds %"class.randomx::Instruction", ptr %12, i32 0, i32 1
  %14 = load i8, ptr %13, align 1, !tbaa !13
  %15 = zext i8 %14 to i32
  %16 = icmp ne i32 %11, %15
  br i1 %16, label %17, label %44

17:                                               ; preds = %3
  %18 = load i32, ptr %6, align 4, !tbaa !9
  %19 = getelementptr inbounds %"class.randomx::JitCompilerX86", ptr %7, i32 0, i32 1
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = getelementptr inbounds %"class.randomx::Instruction", ptr %20, i32 0, i32 1
  %22 = load i8, ptr %21, align 1, !tbaa !13
  %23 = zext i8 %22 to i64
  %24 = getelementptr inbounds [8 x i32], ptr %19, i64 0, i64 %23
  store i32 %18, ptr %24, align 4, !tbaa !9
  %25 = load i32, ptr %6, align 4, !tbaa !9
  %26 = getelementptr inbounds %"class.randomx::JitCompilerX86", ptr %7, i32 0, i32 1
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = getelementptr inbounds %"class.randomx::Instruction", ptr %27, i32 0, i32 2
  %29 = load i8, ptr %28, align 2, !tbaa !11
  %30 = zext i8 %29 to i64
  %31 = getelementptr inbounds [8 x i32], ptr %26, i64 0, i64 %30
  store i32 %25, ptr %31, align 4, !tbaa !9
  call void @_ZN7randomx14JitCompilerX864emitILm2EEEvRAT__Kh(ptr noundef nonnull align 8 dereferenceable(68) %7, ptr noundef nonnull align 1 dereferenceable(2) @_ZN7randomxL8REX_XCHGE)
  %32 = load ptr, ptr %5, align 8, !tbaa !5
  %33 = getelementptr inbounds %"class.randomx::Instruction", ptr %32, i32 0, i32 2
  %34 = load i8, ptr %33, align 2, !tbaa !11
  %35 = zext i8 %34 to i32
  %36 = add nsw i32 192, %35
  %37 = load ptr, ptr %5, align 8, !tbaa !5
  %38 = getelementptr inbounds %"class.randomx::Instruction", ptr %37, i32 0, i32 1
  %39 = load i8, ptr %38, align 1, !tbaa !13
  %40 = zext i8 %39 to i32
  %41 = mul nsw i32 8, %40
  %42 = add nsw i32 %36, %41
  %43 = trunc i32 %42 to i8
  call void @_ZN7randomx14JitCompilerX868emitByteEh(ptr noundef nonnull align 8 dereferenceable(68) %7, i8 noundef zeroext %43)
  br label %44

44:                                               ; preds = %17, %3
  ret void
}

attributes #0 = { 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 #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" }

!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 = !{!"int", !7, i64 0}
!11 = !{!12, !7, i64 2}
!12 = !{!"_ZTSN7randomx11InstructionE", !7, i64 0, !7, i64 1, !7, i64 2, !7, i64 3, !10, i64 4}
!13 = !{!12, !7, i64 1}


; 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"

@_ZN7randomxL8REX_XCHGE = external hidden constant [2 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7randomx14JitCompilerX864emitILm2EEEvRAT__Kh(ptr noundef nonnull align 8 dereferenceable(68), ptr noundef nonnull align 1 dereferenceable(2)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7randomx14JitCompilerX868emitByteEh(ptr noundef nonnull align 8 dereferenceable(68), i8 noundef zeroext) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
define dso_local void @_ZN7randomx14JitCompilerX869h_ISWAP_RERNS_11InstructionEi(ptr noundef nonnull align 8 dereferenceable(68) %0, ptr nocapture noundef nonnull readonly align 4 dereferenceable(8) %1, i32 noundef %2) local_unnamed_addr #0 align 2 {
  %4 = getelementptr inbounds i8, ptr %1, i64 2
  %5 = load i8, ptr %4, align 2, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %1, i64 1
  %7 = load i8, ptr %6, align 1, !tbaa !10
  %.not = icmp eq i8 %5, %7
  br i1 %.not, label %19, label %8

8:                                                ; preds = %3
  %9 = getelementptr inbounds i8, ptr %0, i64 24
  %10 = zext i8 %7 to i64
  %11 = getelementptr inbounds [8 x i32], ptr %9, i64 0, i64 %10
  store i32 %2, ptr %11, align 4, !tbaa !11
  %12 = zext i8 %5 to i64
  %13 = getelementptr inbounds [8 x i32], ptr %9, i64 0, i64 %12
  store i32 %2, ptr %13, align 4, !tbaa !11
  tail call void @_ZN7randomx14JitCompilerX864emitILm2EEEvRAT__Kh(ptr noundef nonnull align 8 dereferenceable(68) %0, ptr noundef nonnull align 1 dereferenceable(2) @_ZN7randomxL8REX_XCHGE)
  %14 = load i8, ptr %4, align 2, !tbaa !5
  %15 = add i8 %14, -64
  %16 = load i8, ptr %6, align 1, !tbaa !10
  %17 = shl i8 %16, 3
  %18 = add i8 %15, %17
  tail call void @_ZN7randomx14JitCompilerX868emitByteEh(ptr noundef nonnull align 8 dereferenceable(68) %0, i8 noundef zeroext %18)
  br label %19

19:                                               ; preds = %8, %3
  ret void
}

attributes #0 = { 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, !7, i64 2}
!6 = !{!"_ZTSN7randomx11InstructionE", !7, i64 0, !7, i64 1, !7, i64 2, !7, i64 3, !9, i64 4}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!"int", !7, i64 0}
!10 = !{!6, !7, i64 1}
!11 = !{!9, !9, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InstCombinePass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,TailCallElimPass