; LLVM IR from t-dillon/tdoku :: src/grid_tools.ll (Z11SampleGridsl)

; 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"

%"class.std::mersenne_twister_engine.2" = type { [312 x i64], i64 }
%"class.std::uniform_int_distribution" = type { %"struct.std::uniform_int_distribution<unsigned long>::param_type" }
%"struct.std::uniform_int_distribution<unsigned long>::param_type" = type { i64, i64 }

@.str.2 = external hidden unnamed_addr constant [12 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [11 x i8], align 1
@_ZN12_GLOBAL__N_13rngE = external hidden global %"class.std::mersenne_twister_engine.2", align 8
@_ZN12_GLOBAL__N_111random_uintE = external hidden global %"class.std::uniform_int_distribution", align 8
@.str.9 = external hidden unnamed_addr constant [11 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

declare i32 @printf(ptr noundef, ...) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_Z8MMapFilePKc(ptr noundef) #2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z11SampleGridsl(i64 noundef %0) #2 {
  %2 = alloca i64, align 8
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca [81 x i8], align 16
  %6 = alloca i64, align 8
  store i64 %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %7 = call noundef ptr @_Z8MMapFilePKc(ptr noundef @.str.2)
  store ptr %7, ptr %3, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %8 = call noundef ptr @_Z8MMapFilePKc(ptr noundef @.str.3)
  store ptr %8, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 81, ptr %5) #3
  br label %9

9:                                                ; preds = %13, %1
  %10 = load i64, ptr %2, align 8, !tbaa !5
  %11 = add nsw i64 %10, -1
  store i64 %11, ptr %2, align 8, !tbaa !5
  %12 = icmp ne i64 %10, 0
  br i1 %12, label %13, label %23

13:                                               ; preds = %9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %14 = call noundef i64 @_ZNSt24uniform_int_distributionImEclISt23mersenne_twister_engineImLm64ELm312ELm156ELm31ELm13043109905998158313ELm29ELm6148914691236517205ELm17ELm8202884508482404352ELm37ELm18444473444759240704ELm43ELm6364136223846793005EEEEmRT_(ptr noundef nonnull align 8 dereferenceable(16) @_ZN12_GLOBAL__N_111random_uintE, ptr noundef nonnull align 8 dereferenceable(2504) @_ZN12_GLOBAL__N_13rngE)
  %15 = urem i64 %14, 3546146300288
  store i64 %15, ptr %6, align 8, !tbaa !5
  %16 = load i64, ptr %6, align 8, !tbaa !5
  %17 = load ptr, ptr %4, align 8, !tbaa !9
  %18 = load ptr, ptr %3, align 8, !tbaa !9
  %19 = getelementptr inbounds [81 x i8], ptr %5, i64 0, i64 0
  call void @GetGrid(i64 noundef %16, ptr noundef %17, ptr noundef %18, ptr noundef %19)
  %20 = getelementptr inbounds [81 x i8], ptr %5, i64 0, i64 0
  %21 = load i64, ptr %6, align 8, !tbaa !5
  %22 = call i32 (ptr, ...) @printf(ptr noundef @.str.9, ptr noundef %20, i64 noundef %21)
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %9, !llvm.loop !11

23:                                               ; preds = %9
  call void @llvm.lifetime.end.p0(i64 81, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNSt24uniform_int_distributionImEclISt23mersenne_twister_engineImLm64ELm312ELm156ELm31ELm13043109905998158313ELm29ELm6148914691236517205ELm17ELm8202884508482404352ELm37ELm18444473444759240704ELm43ELm6364136223846793005EEEEmRT_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(2504)) #2 align 2

declare void @GetGrid(i64 noundef, ptr noundef, ptr noundef, ptr noundef) #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !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"

%"class.std::mersenne_twister_engine.2" = type { [312 x i64], i64 }
%"class.std::uniform_int_distribution" = type { %"struct.std::uniform_int_distribution<unsigned long>::param_type" }
%"struct.std::uniform_int_distribution<unsigned long>::param_type" = type { i64, i64 }

@.str.2 = external hidden unnamed_addr constant [12 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [11 x i8], align 1
@_ZN12_GLOBAL__N_13rngE = external hidden global %"class.std::mersenne_twister_engine.2", align 8
@_ZN12_GLOBAL__N_111random_uintE = external hidden global %"class.std::uniform_int_distribution", align 8
@.str.9 = external hidden unnamed_addr constant [11 x i8], align 1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress uwtable
declare dso_local noundef ptr @_Z8MMapFilePKc(ptr noundef) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z11SampleGridsl(i64 noundef %0) local_unnamed_addr #2 {
  %2 = alloca [81 x i8], align 16
  %3 = tail call noundef ptr @_Z8MMapFilePKc(ptr noundef nonnull @.str.2)
  %4 = tail call noundef ptr @_Z8MMapFilePKc(ptr noundef nonnull @.str.3)
  call void @llvm.lifetime.start.p0(i64 81, ptr nonnull %2) #4
  %.not4 = icmp eq i64 %0, 0
  br i1 %.not4, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %1, %.lr.ph
  %.05 = phi i64 [ %5, %.lr.ph ], [ %0, %1 ]
  %5 = add nsw i64 %.05, -1
  %6 = call noundef i64 @_ZNSt24uniform_int_distributionImEclISt23mersenne_twister_engineImLm64ELm312ELm156ELm31ELm13043109905998158313ELm29ELm6148914691236517205ELm17ELm8202884508482404352ELm37ELm18444473444759240704ELm43ELm6364136223846793005EEEEmRT_(ptr noundef nonnull align 8 dereferenceable(16) @_ZN12_GLOBAL__N_111random_uintE, ptr noundef nonnull align 8 dereferenceable(2504) @_ZN12_GLOBAL__N_13rngE)
  %7 = urem i64 %6, 3546146300288
  call void @GetGrid(i64 noundef %7, ptr noundef %4, ptr noundef %3, ptr noundef nonnull %2)
  %8 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.9, ptr noundef nonnull %2, i64 noundef %7)
  %.not = icmp eq i64 %5, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5

._crit_edge:                                      ; preds = %.lr.ph, %1
  call void @llvm.lifetime.end.p0(i64 81, ptr nonnull %2) #4
  ret void
}

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNSt24uniform_int_distributionImEclISt23mersenne_twister_engineImLm64ELm312ELm156ELm31ELm13043109905998158313ELm29ELm6148914691236517205ELm17ELm8202884508482404352ELm37ELm18444473444759240704ELm43ELm6364136223846793005EEEEmRT_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(2504)) local_unnamed_addr #2 align 2

declare void @GetGrid(i64 noundef, ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nofree nounwind "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 = { 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 #3 = { "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 #4 = { 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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


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