; LLVM IR from libtcod/libtcod :: src/libtcod (mersenne_c)

; 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: 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: nounwind uwtable
define dso_local i32 @TCOD_random_get_i(ptr noundef %0, i32 noundef %1, i32 noundef %2) #1 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i32, align 4
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store i32 %1, ptr %6, align 4, !tbaa !9
  store i32 %2, ptr %7, align 4, !tbaa !9
  %10 = load i32, ptr %7, align 4, !tbaa !9
  %11 = load i32, ptr %6, align 4, !tbaa !9
  %12 = icmp eq i32 %10, %11
  br i1 %12, label %13, label %15

13:                                               ; preds = %3
  %14 = load i32, ptr %6, align 4, !tbaa !9
  store i32 %14, ptr %4, align 4
  br label %34

15:                                               ; preds = %3
  %16 = load i32, ptr %6, align 4, !tbaa !9
  %17 = load i32, ptr %7, align 4, !tbaa !9
  %18 = icmp sgt i32 %16, %17
  br i1 %18, label %19, label %23

19:                                               ; preds = %15
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #2
  %20 = load i32, ptr %6, align 4, !tbaa !9
  store i32 %20, ptr %8, align 4, !tbaa !9
  %21 = load i32, ptr %7, align 4, !tbaa !9
  store i32 %21, ptr %6, align 4, !tbaa !9
  %22 = load i32, ptr %8, align 4, !tbaa !9
  store i32 %22, ptr %7, align 4, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  br label %23

23:                                               ; preds = %19, %15
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #2
  %24 = load i32, ptr %7, align 4, !tbaa !9
  %25 = load i32, ptr %6, align 4, !tbaa !9
  %26 = sub nsw i32 %24, %25
  %27 = add nsw i32 %26, 1
  store i32 %27, ptr %9, align 4, !tbaa !9
  %28 = load ptr, ptr %5, align 8, !tbaa !5
  %29 = call i32 @get_random_u32(ptr noundef %28)
  %30 = load i32, ptr %9, align 4, !tbaa !9
  %31 = urem i32 %29, %30
  %32 = load i32, ptr %6, align 4, !tbaa !9
  %33 = add i32 %31, %32
  store i32 %33, ptr %4, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #2
  br label %34

34:                                               ; preds = %23, %13
  %35 = load i32, ptr %4, align 4
  ret i32 %35
}

; Function Attrs: nounwind uwtable
declare hidden i32 @get_random_u32(ptr noundef) #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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}


; 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
define dso_local i32 @TCOD_random_get_i(ptr noundef %0, i32 noundef %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = icmp eq i32 %2, %1
  br i1 %4, label %10, label %5

5:                                                ; preds = %3
  %spec.select = tail call i32 @llvm.smax.i32(i32 %1, i32 %2)
  %spec.select17 = tail call i32 @llvm.smin.i32(i32 %1, i32 %2)
  %reass.sub = sub i32 %spec.select, %spec.select17
  %6 = add i32 %reass.sub, 1
  %7 = tail call i32 @get_random_u32(ptr noundef %0)
  %8 = urem i32 %7, %6
  %9 = add i32 %8, %spec.select17
  br label %10

10:                                               ; preds = %3, %5
  %.0 = phi i32 [ %9, %5 ], [ %2, %3 ]
  ret i32 %.0
}

; Function Attrs: nounwind uwtable
declare hidden i32 @get_random_u32(ptr noundef) local_unnamed_addr #0

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.smax.i32(i32, i32) #1

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.smin.i32(i32, i32) #1

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 speculatable willreturn memory(none) }

!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: GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass