; LLVM IR from trabucayre/openFPGALoader :: src/lattice.ll (ZN7Lattice16writeFeaturesRowEmb)

; 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.Device = type <{ ptr, ptr, %"class.std::__cxx11::basic_string", %"class.std::__cxx11::basic_string", i32, i8, i8, i8, i8 }>
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 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
declare dso_local noundef zeroext i1 @_ZN7Lattice5wr_rdEhPhiS0_ib(ptr noundef nonnull align 8 dereferenceable(152), i8 noundef zeroext, ptr noundef, i32 noundef, ptr noundef, i32 noundef, i1 noundef zeroext) #1 align 2

declare void @_ZN4Jtag9set_stateENS_10tapState_tEh(ptr noundef nonnull align 8 dereferenceable(193), i32 noundef, i8 noundef zeroext) #2

declare void @_ZN4Jtag9toggleClkEi(ptr noundef nonnull align 8 dereferenceable(193), i32 noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZN7Lattice12pollBusyFlagEb(ptr noundef nonnull align 8 dereferenceable(152), i1 noundef zeroext) #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZN7Lattice15readFeaturesRowEv(ptr noundef nonnull align 8 dereferenceable(152)) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN7Lattice16writeFeaturesRowEmb(ptr noundef nonnull align 8 dereferenceable(152) %0, i64 noundef %1, i1 noundef zeroext %2) #1 align 2 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca i64, align 8
  %7 = alloca i8, align 1
  %8 = alloca [8 x i8], align 1
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i64 %1, ptr %6, align 8, !tbaa !9
  %11 = zext i1 %2 to i8
  store i8 %11, ptr %7, align 1, !tbaa !11
  %12 = load ptr, ptr %5, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #3
  store i32 0, ptr %9, align 4, !tbaa !13
  br label %13

13:                                               ; preds = %28, %3
  %14 = load i32, ptr %9, align 4, !tbaa !13
  %15 = icmp slt i32 %14, 8
  br i1 %15, label %17, label %16

16:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #3
  br label %31

17:                                               ; preds = %13
  %18 = load i64, ptr %6, align 8, !tbaa !9
  %19 = load i32, ptr %9, align 4, !tbaa !13
  %20 = mul nsw i32 %19, 8
  %21 = zext i32 %20 to i64
  %22 = lshr i64 %18, %21
  %23 = and i64 %22, 255
  %24 = trunc i64 %23 to i8
  %25 = load i32, ptr %9, align 4, !tbaa !13
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds [8 x i8], ptr %8, i64 0, i64 %26
  store i8 %24, ptr %27, align 1, !tbaa !15
  br label %28

28:                                               ; preds = %17
  %29 = load i32, ptr %9, align 4, !tbaa !13
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %9, align 4, !tbaa !13
  br label %13, !llvm.loop !16

31:                                               ; preds = %16
  %32 = getelementptr inbounds [8 x i8], ptr %8, i64 0, i64 0
  %33 = call noundef zeroext i1 @_ZN7Lattice5wr_rdEhPhiS0_ib(ptr noundef nonnull align 8 dereferenceable(152) %12, i8 noundef zeroext -28, ptr noundef %32, i32 noundef 8, ptr noundef null, i32 noundef 0, i1 noundef zeroext false)
  %34 = getelementptr inbounds %class.Device, ptr %12, i32 0, i32 1
  %35 = load ptr, ptr %34, align 8, !tbaa !18
  call void @_ZN4Jtag9set_stateENS_10tapState_tEh(ptr noundef nonnull align 8 dereferenceable(193) %35, i32 noundef 1, i8 noundef zeroext 1)
  %36 = getelementptr inbounds %class.Device, ptr %12, i32 0, i32 1
  %37 = load ptr, ptr %36, align 8, !tbaa !18
  call void @_ZN4Jtag9toggleClkEi(ptr noundef nonnull align 8 dereferenceable(193) %37, i32 noundef 1000)
  %38 = call noundef zeroext i1 @_ZN7Lattice12pollBusyFlagEb(ptr noundef nonnull align 8 dereferenceable(152) %12, i1 noundef zeroext false)
  br i1 %38, label %40, label %39

39:                                               ; preds = %31
  store i1 false, ptr %4, align 1
  store i32 1, ptr %10, align 4
  br label %50

40:                                               ; preds = %31
  %41 = load i8, ptr %7, align 1, !tbaa !11, !range !23, !noundef !24
  %42 = trunc i8 %41 to i1
  br i1 %42, label %43, label %49

43:                                               ; preds = %40
  %44 = load i64, ptr %6, align 8, !tbaa !9
  %45 = call noundef i64 @_ZN7Lattice15readFeaturesRowEv(ptr noundef nonnull align 8 dereferenceable(152) %12)
  %46 = icmp eq i64 %44, %45
  %47 = zext i1 %46 to i64
  %48 = select i1 %46, i1 true, i1 false
  store i1 %48, ptr %4, align 1
  store i32 1, ptr %10, align 4
  br label %50

49:                                               ; preds = %40
  store i1 true, ptr %4, align 1
  store i32 1, ptr %10, align 4
  br label %50

50:                                               ; preds = %49, %43, %39
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  %51 = load i1, ptr %4, align 1
  ret i1 %51
}

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 = { "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 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"bool", !7, i64 0}
!13 = !{!14, !14, i64 0}
!14 = !{!"int", !7, i64 0}
!15 = !{!7, !7, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}
!18 = !{!19, !6, i64 8}
!19 = !{!"_ZTS6Device", !6, i64 8, !20, i64 16, !20, i64 48, !22, i64 80, !12, i64 84, !12, i64 85, !12, i64 86}
!20 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !21, i64 0, !10, i64 8, !7, i64 16}
!21 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !6, i64 0}
!22 = !{!"_ZTSN6Device9prog_modeE", !7, i64 0}
!23 = !{i8 0, i8 2}
!24 = !{}


; 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 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 uwtable
declare dso_local noundef zeroext i1 @_ZN7Lattice5wr_rdEhPhiS0_ib(ptr noundef nonnull align 8 dereferenceable(152), i8 noundef zeroext, ptr noundef, i32 noundef, ptr noundef, i32 noundef, i1 noundef zeroext) local_unnamed_addr #1 align 2

declare void @_ZN4Jtag9set_stateENS_10tapState_tEh(ptr noundef nonnull align 8 dereferenceable(193), i32 noundef, i8 noundef zeroext) local_unnamed_addr #2

declare void @_ZN4Jtag9toggleClkEi(ptr noundef nonnull align 8 dereferenceable(193), i32 noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_ZN7Lattice12pollBusyFlagEb(ptr noundef nonnull align 8 dereferenceable(152), i1 noundef zeroext) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZN7Lattice15readFeaturesRowEv(ptr noundef nonnull align 8 dereferenceable(152)) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN7Lattice16writeFeaturesRowEmb(ptr noundef nonnull align 8 dereferenceable(152) %0, i64 noundef %1, i1 noundef zeroext %2) local_unnamed_addr #1 align 2 {
  %4 = alloca [8 x i8], align 1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #3
  %5 = trunc i64 %1 to i8
  store i8 %5, ptr %4, align 1, !tbaa !5
  %6 = lshr i64 %1, 8
  %7 = trunc i64 %6 to i8
  %8 = getelementptr inbounds i8, ptr %4, i64 1
  store i8 %7, ptr %8, align 1, !tbaa !5
  %9 = lshr i64 %1, 16
  %10 = trunc i64 %9 to i8
  %11 = getelementptr inbounds i8, ptr %4, i64 2
  store i8 %10, ptr %11, align 1, !tbaa !5
  %12 = lshr i64 %1, 24
  %13 = trunc i64 %12 to i8
  %14 = getelementptr inbounds i8, ptr %4, i64 3
  store i8 %13, ptr %14, align 1, !tbaa !5
  %15 = lshr i64 %1, 32
  %16 = trunc i64 %15 to i8
  %17 = getelementptr inbounds i8, ptr %4, i64 4
  store i8 %16, ptr %17, align 1, !tbaa !5
  %18 = lshr i64 %1, 40
  %19 = trunc i64 %18 to i8
  %20 = getelementptr inbounds i8, ptr %4, i64 5
  store i8 %19, ptr %20, align 1, !tbaa !5
  %21 = lshr i64 %1, 48
  %22 = trunc i64 %21 to i8
  %23 = getelementptr inbounds i8, ptr %4, i64 6
  store i8 %22, ptr %23, align 1, !tbaa !5
  %24 = lshr i64 %1, 56
  %25 = trunc nuw i64 %24 to i8
  %26 = getelementptr inbounds i8, ptr %4, i64 7
  store i8 %25, ptr %26, align 1, !tbaa !5
  %27 = call noundef zeroext i1 @_ZN7Lattice5wr_rdEhPhiS0_ib(ptr noundef nonnull align 8 dereferenceable(152) %0, i8 noundef zeroext -28, ptr noundef nonnull %4, i32 noundef 8, ptr noundef null, i32 noundef 0, i1 noundef zeroext false)
  %28 = getelementptr inbounds i8, ptr %0, i64 8
  %29 = load ptr, ptr %28, align 8, !tbaa !8
  call void @_ZN4Jtag9set_stateENS_10tapState_tEh(ptr noundef nonnull align 8 dereferenceable(193) %29, i32 noundef 1, i8 noundef zeroext 1)
  %30 = load ptr, ptr %28, align 8, !tbaa !8
  call void @_ZN4Jtag9toggleClkEi(ptr noundef nonnull align 8 dereferenceable(193) %30, i32 noundef 1000)
  %31 = call noundef zeroext i1 @_ZN7Lattice12pollBusyFlagEb(ptr noundef nonnull align 8 dereferenceable(152) %0, i1 noundef zeroext false)
  %brmerge.not = and i1 %31, %2
  br i1 %brmerge.not, label %32, label %35

32:                                               ; preds = %3
  %33 = call noundef i64 @_ZN7Lattice15readFeaturesRowEv(ptr noundef nonnull align 8 dereferenceable(152) %0)
  %34 = icmp eq i64 %33, %1
  br label %35

35:                                               ; preds = %3, %32
  %.08 = phi i1 [ %34, %32 ], [ %31, %3 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #3
  ret i1 %.08
}

attributes #0 = { mustprogress 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 = { "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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !10, i64 8}
!9 = !{!"_ZTS6Device", !10, i64 8, !11, i64 16, !11, i64 48, !14, i64 80, !15, i64 84, !15, i64 85, !15, i64 86}
!10 = !{!"any pointer", !6, i64 0}
!11 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !12, i64 0, !13, i64 8, !6, i64 16}
!12 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !10, i64 0}
!13 = !{!"long", !6, i64 0}
!14 = !{!"_ZTSN6Device9prog_modeE", !6, i64 0}
!15 = !{!"bool", !6, i64 0}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,ReassociatePass,SCCPPass,SROAPass,SimplifyCFGPass