; LLVM IR from erwincoumans/tiny-differentiable-simulator :: src/visualizer/opengl (tiny_font_stash)

; 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: mustprogress uwtable
declare dso_local i32 @stbtt_GetFontOffsetForIndex(ptr 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: mustprogress uwtable
define dso_local i32 @stbtt_FindMatchingFont(ptr noundef %0, ptr noundef %1, i32 noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  store i32 0, ptr %8, align 4, !tbaa !9
  br label %11

11:                                               ; preds = %32, %3
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #2
  %12 = load ptr, ptr %5, align 8, !tbaa !5
  %13 = load i32, ptr %8, align 4, !tbaa !9
  %14 = call i32 @stbtt_GetFontOffsetForIndex(ptr noundef %12, i32 noundef %13)
  store i32 %14, ptr %9, align 4, !tbaa !9
  %15 = load i32, ptr %9, align 4, !tbaa !9
  %16 = icmp slt i32 %15, 0
  br i1 %16, label %17, label %19

17:                                               ; preds = %11
  %18 = load i32, ptr %9, align 4, !tbaa !9
  store i32 %18, ptr %4, align 4
  store i32 1, ptr %10, align 4
  br label %29

19:                                               ; preds = %11
  %20 = load ptr, ptr %5, align 8, !tbaa !5
  %21 = load i32, ptr %9, align 4, !tbaa !9
  %22 = load ptr, ptr %6, align 8, !tbaa !5
  %23 = load i32, ptr %7, align 4, !tbaa !9
  %24 = call noundef i32 @_ZL14stbtt__matchesPhjS_i(ptr noundef %20, i32 noundef %21, ptr noundef %22, i32 noundef %23)
  %25 = icmp ne i32 %24, 0
  br i1 %25, label %26, label %28

26:                                               ; preds = %19
  %27 = load i32, ptr %9, align 4, !tbaa !9
  store i32 %27, ptr %4, align 4
  store i32 1, ptr %10, align 4
  br label %29

28:                                               ; preds = %19
  store i32 0, ptr %10, align 4
  br label %29

29:                                               ; preds = %28, %26, %17
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  %30 = load i32, ptr %10, align 4
  switch i32 %30, label %35 [
    i32 0, label %31
  ]

31:                                               ; preds = %29
  br label %32

32:                                               ; preds = %31
  %33 = load i32, ptr %8, align 4, !tbaa !9
  %34 = add nsw i32 %33, 1
  store i32 %34, ptr %8, align 4, !tbaa !9
  br label %11, !llvm.loop !11

35:                                               ; preds = %29
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  %36 = load i32, ptr %4, align 4
  ret i32 %36
}

; Function Attrs: mustprogress uwtable
declare hidden noundef i32 @_ZL14stbtt__matchesPhjS_i(ptr noundef, i32 noundef, ptr noundef, i32 noundef) #0

attributes #0 = { 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 #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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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: mustprogress uwtable
declare dso_local i32 @stbtt_GetFontOffsetForIndex(ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: mustprogress uwtable
define dso_local i32 @stbtt_FindMatchingFont(ptr noundef %0, ptr noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = tail call i32 @stbtt_GetFontOffsetForIndex(ptr noundef %0, i32 noundef 0)
  %5 = icmp slt i32 %4, 0
  br i1 %5, label %.thread, label %.lr.ph

6:                                                ; preds = %.lr.ph
  %7 = add nuw nsw i32 %.01218, 1
  %8 = tail call i32 @stbtt_GetFontOffsetForIndex(ptr noundef %0, i32 noundef %7)
  %9 = icmp slt i32 %8, 0
  br i1 %9, label %.thread, label %.lr.ph, !llvm.loop !5

.lr.ph:                                           ; preds = %3, %6
  %10 = phi i32 [ %8, %6 ], [ %4, %3 ]
  %.01218 = phi i32 [ %7, %6 ], [ 0, %3 ]
  %11 = tail call noundef i32 @_ZL14stbtt__matchesPhjS_i(ptr noundef %0, i32 noundef %10, ptr noundef %1, i32 noundef %2)
  %.not = icmp eq i32 %11, 0
  br i1 %.not, label %6, label %.thread

.thread:                                          ; preds = %.lr.ph, %6, %3
  %.lcssa = phi i32 [ %4, %3 ], [ %8, %6 ], [ %10, %.lr.ph ]
  ret i32 %.lcssa
}

; Function Attrs: mustprogress uwtable
declare hidden noundef i32 @_ZL14stbtt__matchesPhjS_i(ptr noundef, i32 noundef, ptr noundef, i32 noundef) local_unnamed_addr #0

attributes #0 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


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