; LLVM IR from kostya/crystal-benchmarks-game :: meteor (meteor)

; 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"

@piece_def = external dso_local global [10 x [4 x i8]], align 16

; Function Attrs: nounwind uwtable
declare dso_local signext i8 @flip(i8 noundef signext) #0

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

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

; Function Attrs: nounwind uwtable
define dso_local void @flip_piece(i32 noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  store i32 %0, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  store i32 0, ptr %3, align 4, !tbaa !5
  br label %4

4:                                                ; preds = %22, %1
  %5 = load i32, ptr %3, align 4, !tbaa !5
  %6 = icmp slt i32 %5, 4
  br i1 %6, label %7, label %25

7:                                                ; preds = %4
  %8 = load i32, ptr %2, align 4, !tbaa !5
  %9 = sext i32 %8 to i64
  %10 = getelementptr inbounds [10 x [4 x i8]], ptr @piece_def, i64 0, i64 %9
  %11 = load i32, ptr %3, align 4, !tbaa !5
  %12 = sext i32 %11 to i64
  %13 = getelementptr inbounds [4 x i8], ptr %10, i64 0, i64 %12
  %14 = load i8, ptr %13, align 1, !tbaa !9
  %15 = call signext i8 @flip(i8 noundef signext %14)
  %16 = load i32, ptr %2, align 4, !tbaa !5
  %17 = sext i32 %16 to i64
  %18 = getelementptr inbounds [10 x [4 x i8]], ptr @piece_def, i64 0, i64 %17
  %19 = load i32, ptr %3, align 4, !tbaa !5
  %20 = sext i32 %19 to i64
  %21 = getelementptr inbounds [4 x i8], ptr %18, i64 0, i64 %20
  store i8 %15, ptr %21, align 1, !tbaa !9
  br label %22

22:                                               ; preds = %7
  %23 = load i32, ptr %3, align 4, !tbaa !5
  %24 = add nsw i32 %23, 1
  store i32 %24, ptr %3, align 4, !tbaa !5
  br label %4, !llvm.loop !10

25:                                               ; preds = %4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  ret void
}

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 = { 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/C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}


; 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"

@piece_def = external dso_local local_unnamed_addr global [10 x [4 x i8]], align 16

; Function Attrs: nounwind uwtable
declare dso_local signext i8 @flip(i8 noundef signext) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local void @flip_piece(i32 noundef %0) local_unnamed_addr #0 {
  %2 = sext i32 %0 to i64
  %3 = getelementptr inbounds [10 x [4 x i8]], ptr @piece_def, i64 0, i64 %2, i64 0
  %4 = load i8, ptr %3, align 4, !tbaa !5
  %5 = tail call signext i8 @flip(i8 noundef signext %4)
  store i8 %5, ptr %3, align 4, !tbaa !5
  %6 = getelementptr inbounds [10 x [4 x i8]], ptr @piece_def, i64 0, i64 %2, i64 1
  %7 = load i8, ptr %6, align 1, !tbaa !5
  %8 = tail call signext i8 @flip(i8 noundef signext %7)
  store i8 %8, ptr %6, align 1, !tbaa !5
  %9 = getelementptr inbounds [10 x [4 x i8]], ptr @piece_def, i64 0, i64 %2, i64 2
  %10 = load i8, ptr %9, align 2, !tbaa !5
  %11 = tail call signext i8 @flip(i8 noundef signext %10)
  store i8 %11, ptr %9, align 2, !tbaa !5
  %12 = getelementptr inbounds [10 x [4 x i8]], ptr @piece_def, i64 0, i64 %2, i64 3
  %13 = load i8, ptr %12, align 1, !tbaa !5
  %14 = tail call signext i8 @flip(i8 noundef signext %13)
  store i8 %14, ptr %12, align 1, !tbaa !5
  ret void
}

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" }

!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"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,LICMPass,LoopRotatePass,SROAPass,SimplifyCFGPass,TailCallElimPass