; LLVM IR from Stephane-D/SGDK :: sample/joy-test/src (main)

; 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"

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i8, align 1
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 1, ptr %2) #3
  call void @VDP_setScreenWidth320()
  call void @VDP_setHInterrupt(i8 noundef zeroext 0)
  call void @VDP_setHilightShadow(i8 noundef zeroext 0)
  call void @PAL_setColor(i16 noundef zeroext 31, i16 noundef zeroext 546)
  call void @VDP_setTextPalette(i16 noundef zeroext 0)
  call void @PAL_setColor(i16 noundef zeroext 0, i16 noundef zeroext 2178)
  %3 = call zeroext i8 @JOY_getPortType(i16 noundef zeroext 0)
  store i8 %3, ptr %2, align 1, !tbaa !5
  %4 = load i8, ptr %2, align 1, !tbaa !5
  %5 = zext i8 %4 to i32
  switch i32 %5, label %10 [
    i32 0, label %6
    i32 1, label %7
    i32 3, label %8
    i32 7, label %9
  ]

6:                                                ; preds = %0
  call void @JOY_setSupport(i16 noundef zeroext 0, i16 noundef zeroext 7)
  br label %10

7:                                                ; preds = %0
  call void @JOY_setSupport(i16 noundef zeroext 0, i16 noundef zeroext 9)
  br label %10

8:                                                ; preds = %0
  call void @JOY_setSupport(i16 noundef zeroext 0, i16 noundef zeroext 3)
  br label %10

9:                                                ; preds = %0
  call void @JOY_setSupport(i16 noundef zeroext 0, i16 noundef zeroext 5)
  br label %10

10:                                               ; preds = %9, %8, %7, %6, %0
  call void @JOY_setSupport(i16 noundef zeroext 1, i16 noundef zeroext 10)
  br label %11

11:                                               ; preds = %12, %10
  br label %12

12:                                               ; preds = %11
  %13 = call zeroext i8 @SYS_doVBlankProcess()
  call void @showPortState()
  br label %11
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

declare void @VDP_setScreenWidth320() #2

declare void @VDP_setHInterrupt(i8 noundef zeroext) #2

declare void @VDP_setHilightShadow(i8 noundef zeroext) #2

declare void @PAL_setColor(i16 noundef zeroext, i16 noundef zeroext) #2

declare void @VDP_setTextPalette(i16 noundef zeroext) #2

declare zeroext i8 @JOY_getPortType(i16 noundef zeroext) #2

declare void @JOY_setSupport(i16 noundef zeroext, i16 noundef zeroext) #2

declare zeroext i8 @SYS_doVBlankProcess() #2

; Function Attrs: nounwind uwtable
declare hidden void @showPortState() #0

attributes #0 = { 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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/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"

@switch.table.main = private unnamed_addr constant [8 x i16] [i16 7, i16 9, i16 7, i16 3, i16 7, i16 7, i16 7, i16 5], align 2

; Function Attrs: noreturn nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  tail call void @VDP_setScreenWidth320() #3
  tail call void @VDP_setHInterrupt(i8 noundef zeroext 0) #3
  tail call void @VDP_setHilightShadow(i8 noundef zeroext 0) #3
  tail call void @PAL_setColor(i16 noundef zeroext 31, i16 noundef zeroext 546) #3
  tail call void @VDP_setTextPalette(i16 noundef zeroext 0) #3
  tail call void @PAL_setColor(i16 noundef zeroext 0, i16 noundef zeroext 2178) #3
  %1 = tail call zeroext i8 @JOY_getPortType(i16 noundef zeroext 0) #3
  %2 = icmp ult i8 %1, 8
  br i1 %2, label %switch.hole_check, label %4

switch.hole_check:                                ; preds = %0
  %switch.shifted = lshr i8 -117, %1
  %switch.lobit = trunc i8 %switch.shifted to i1
  br i1 %switch.lobit, label %switch.lookup, label %4

switch.lookup:                                    ; preds = %switch.hole_check
  %3 = zext nneg i8 %1 to i64
  %switch.gep = getelementptr inbounds [8 x i16], ptr @switch.table.main, i64 0, i64 %3
  %switch.load = load i16, ptr %switch.gep, align 2
  tail call void @JOY_setSupport(i16 noundef zeroext 0, i16 noundef zeroext %switch.load) #3
  br label %4

4:                                                ; preds = %switch.hole_check, %0, %switch.lookup
  tail call void @JOY_setSupport(i16 noundef zeroext 1, i16 noundef zeroext 10) #3
  br label %5

5:                                                ; preds = %5, %4
  %6 = tail call zeroext i8 @SYS_doVBlankProcess() #3
  tail call void @showPortState()
  br label %5
}

declare void @VDP_setScreenWidth320() local_unnamed_addr #1

declare void @VDP_setHInterrupt(i8 noundef zeroext) local_unnamed_addr #1

declare void @VDP_setHilightShadow(i8 noundef zeroext) local_unnamed_addr #1

declare void @PAL_setColor(i16 noundef zeroext, i16 noundef zeroext) local_unnamed_addr #1

declare void @VDP_setTextPalette(i16 noundef zeroext) local_unnamed_addr #1

declare zeroext i8 @JOY_getPortType(i16 noundef zeroext) local_unnamed_addr #1

declare void @JOY_setSupport(i16 noundef zeroext, i16 noundef zeroext) local_unnamed_addr #1

declare zeroext i8 @SYS_doVBlankProcess() local_unnamed_addr #1

; Function Attrs: nounwind uwtable
declare hidden void @showPortState() local_unnamed_addr #2

attributes #0 = { noreturn 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 = { "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 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)"}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass