; LLVM IR from tastangh/TI-RSLK-Texas-Instruments-Robotics-System-The-Maze-Edition :: tirslk_maze_1_00_00/inc (FlashProgram)

; 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
declare dso_local i32 @Flash_Write(i32 noundef, i32 noundef) #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 i32 @Flash_WriteArray(ptr noundef %0, i32 noundef %1, i16 noundef zeroext %2) #0 {
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca i16, align 2
  %7 = alloca i16, align 2
  store ptr %0, ptr %4, align 8, !tbaa !5
  store i32 %1, ptr %5, align 4, !tbaa !9
  store i16 %2, ptr %6, align 2, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 2, ptr %7) #2
  store i16 0, ptr %7, align 2, !tbaa !11
  br label %8

8:                                                ; preds = %29, %3
  %9 = load i16, ptr %7, align 2, !tbaa !11
  %10 = zext i16 %9 to i32
  %11 = load i16, ptr %6, align 2, !tbaa !11
  %12 = zext i16 %11 to i32
  %13 = icmp slt i32 %10, %12
  br i1 %13, label %14, label %27

14:                                               ; preds = %8
  %15 = load i32, ptr %5, align 4, !tbaa !9
  %16 = load i16, ptr %7, align 2, !tbaa !11
  %17 = zext i16 %16 to i32
  %18 = mul nsw i32 4, %17
  %19 = add i32 %15, %18
  %20 = load ptr, ptr %4, align 8, !tbaa !5
  %21 = load i16, ptr %7, align 2, !tbaa !11
  %22 = zext i16 %21 to i64
  %23 = getelementptr inbounds i32, ptr %20, i64 %22
  %24 = load i32, ptr %23, align 4, !tbaa !9
  %25 = call i32 @Flash_Write(i32 noundef %19, i32 noundef %24)
  %26 = icmp eq i32 %25, 0
  br label %27

27:                                               ; preds = %14, %8
  %28 = phi i1 [ false, %8 ], [ %26, %14 ]
  br i1 %28, label %29, label %34

29:                                               ; preds = %27
  %30 = load i16, ptr %7, align 2, !tbaa !11
  %31 = zext i16 %30 to i32
  %32 = add nsw i32 %31, 1
  %33 = trunc i32 %32 to i16
  store i16 %33, ptr %7, align 2, !tbaa !11
  br label %8, !llvm.loop !13

34:                                               ; preds = %27
  %35 = load i16, ptr %7, align 2, !tbaa !11
  %36 = zext i16 %35 to i32
  call void @llvm.lifetime.end.p0(i64 2, ptr %7) #2
  ret i32 %36
}

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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"short", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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"

; Function Attrs: nounwind uwtable
declare dso_local i32 @Flash_Write(i32 noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 65536) i32 @Flash_WriteArray(ptr nocapture noundef readonly %0, i32 noundef %1, i16 noundef zeroext %2) local_unnamed_addr #0 {
  %.not = icmp eq i16 %2, 0
  br i1 %.not, label %.critedge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %3
  %wide.trip.count = zext i16 %2 to i64
  br label %.lr.ph

4:                                                ; preds = %.lr.ph
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %5 = trunc nuw i64 %indvars.iv.next to i32
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %.critedge, label %.lr.ph, !llvm.loop !5

.lr.ph:                                           ; preds = %.lr.ph.preheader, %4
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %4 ]
  %6 = phi i32 [ 0, %.lr.ph.preheader ], [ %5, %4 ]
  %7 = shl nuw nsw i32 %6, 2
  %8 = add i32 %7, %1
  %9 = getelementptr inbounds i32, ptr %0, i64 %indvars.iv
  %10 = load i32, ptr %9, align 4, !tbaa !7
  %11 = tail call i32 @Flash_Write(i32 noundef %8, i32 noundef %10)
  %12 = icmp eq i32 %11, 0
  br i1 %12, label %4, label %.critedge

.critedge:                                        ; preds = %.lr.ph, %4, %3
  %.lcssa = phi i32 [ 0, %3 ], [ %5, %4 ], [ %6, %.lr.ph ]
  ret i32 %.lcssa
}

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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}
!7 = !{!8, !8, i64 0}
!8 = !{!"int", !9, i64 0}
!9 = !{!"omnipotent char", !10, i64 0}
!10 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass