; LLVM IR from 0intro/wmii :: lib/libfmt (fmtlocale)

; 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"

%struct.Fmt = type { i8, ptr, ptr, ptr, ptr, ptr, i32, [1 x %struct.__va_list_tag], i32, i32, i32, i64, ptr, ptr, ptr }
%struct.__va_list_tag = type { i32, i32, ptr, ptr }

@.str = external hidden unnamed_addr constant [2 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: nounwind uwtable
define dso_local void @fmtlocaleinit(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) #0 {
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store ptr %2, ptr %7, align 8, !tbaa !5
  store ptr %3, ptr %8, align 8, !tbaa !5
  %9 = load ptr, ptr %6, align 8, !tbaa !5
  %10 = icmp eq ptr %9, null
  br i1 %10, label %17, label %11

11:                                               ; preds = %4
  %12 = load ptr, ptr %6, align 8, !tbaa !5
  %13 = getelementptr inbounds i8, ptr %12, i64 0
  %14 = load i8, ptr %13, align 1, !tbaa !9
  %15 = sext i8 %14 to i32
  %16 = icmp eq i32 %15, 0
  br i1 %16, label %17, label %18

17:                                               ; preds = %11, %4
  store ptr @.str, ptr %6, align 8, !tbaa !5
  br label %18

18:                                               ; preds = %17, %11
  %19 = load ptr, ptr %7, align 8, !tbaa !5
  %20 = icmp eq ptr %19, null
  br i1 %20, label %21, label %22

21:                                               ; preds = %18
  store ptr @.str.1, ptr %7, align 8, !tbaa !5
  br label %22

22:                                               ; preds = %21, %18
  %23 = load ptr, ptr %8, align 8, !tbaa !5
  %24 = icmp eq ptr %23, null
  br i1 %24, label %25, label %26

25:                                               ; preds = %22
  store ptr @.str.2, ptr %8, align 8, !tbaa !5
  br label %26

26:                                               ; preds = %25, %22
  %27 = load ptr, ptr %6, align 8, !tbaa !5
  %28 = load ptr, ptr %5, align 8, !tbaa !5
  %29 = getelementptr inbounds %struct.Fmt, ptr %28, i32 0, i32 12
  store ptr %27, ptr %29, align 8, !tbaa !10
  %30 = load ptr, ptr %7, align 8, !tbaa !5
  %31 = load ptr, ptr %5, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.Fmt, ptr %31, i32 0, i32 13
  store ptr %30, ptr %32, align 8, !tbaa !14
  %33 = load ptr, ptr %8, align 8, !tbaa !5
  %34 = load ptr, ptr %5, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.Fmt, ptr %34, i32 0, i32 14
  store ptr %33, ptr %35, align 8, !tbaa !15
  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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!7, !7, i64 0}
!10 = !{!11, !6, i64 104}
!11 = !{!"Fmt", !7, i64 0, !6, i64 8, !6, i64 16, !6, i64 24, !6, i64 32, !6, i64 40, !12, i64 48, !7, i64 56, !12, i64 80, !12, i64 84, !12, i64 88, !13, i64 96, !6, i64 104, !6, i64 112, !6, i64 120}
!12 = !{!"int", !7, i64 0}
!13 = !{!"long", !7, i64 0}
!14 = !{!11, !6, i64 112}
!15 = !{!11, !6, i64 120}


; 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"

@.str = external hidden unnamed_addr constant [2 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) uwtable
define dso_local void @fmtlocaleinit(ptr nocapture noundef writeonly %0, ptr noundef %1, ptr noundef %2, ptr noundef %3) local_unnamed_addr #0 {
  %5 = icmp eq ptr %1, null
  br i1 %5, label %9, label %6

6:                                                ; preds = %4
  %7 = load i8, ptr %1, align 1, !tbaa !5
  %8 = icmp eq i8 %7, 0
  br i1 %8, label %9, label %10

9:                                                ; preds = %6, %4
  br label %10

10:                                               ; preds = %9, %6
  %.0 = phi ptr [ @.str, %9 ], [ %1, %6 ]
  %11 = insertelement <2 x ptr> poison, ptr %2, i64 0
  %12 = insertelement <2 x ptr> %11, ptr %3, i64 1
  %13 = icmp eq <2 x ptr> %12, zeroinitializer
  %14 = getelementptr inbounds i8, ptr %0, i64 104
  store ptr %.0, ptr %14, align 8, !tbaa !8
  %15 = getelementptr inbounds i8, ptr %0, i64 112
  %16 = select <2 x i1> %13, <2 x ptr> <ptr @.str.1, ptr @.str.2>, <2 x ptr> %12
  store <2 x ptr> %16, ptr %15, align 8, !tbaa !13
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: readwrite) 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"}
!8 = !{!9, !10, i64 104}
!9 = !{!"Fmt", !6, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !10, i64 32, !10, i64 40, !11, i64 48, !6, i64 56, !11, i64 80, !11, i64 84, !11, i64 88, !12, i64 96, !10, i64 104, !10, i64 112, !10, i64 120}
!10 = !{!"any pointer", !6, i64 0}
!11 = !{!"int", !6, i64 0}
!12 = !{!"long", !6, i64 0}
!13 = !{!10, !10, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InstCombinePass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass,SimplifyCFGPass