; LLVM IR from hbatagelo/abcg :: abcg/external/glslang/glslang/MachineIndependent (Versions)

; 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: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN7glslang14TParseVersions18extensionsTurnedOnEiPKPKc(ptr noundef nonnull align 8 dereferenceable(192) %0, i32 noundef %1, ptr noundef %2) unnamed_addr #1 align 2 {
  %4 = alloca i1, align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %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 ptr %2, ptr %7, align 8, !tbaa !5
  %10 = load ptr, ptr %5, align 8
  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 = %28, %3
  %12 = load i32, ptr %8, align 4, !tbaa !9
  %13 = load i32, ptr %6, align 4, !tbaa !9
  %14 = icmp slt i32 %12, %13
  br i1 %14, label %16, label %15

15:                                               ; preds = %11
  store i32 2, ptr %9, align 4
  br label %31

16:                                               ; preds = %11
  %17 = load ptr, ptr %7, align 8, !tbaa !5
  %18 = load i32, ptr %8, align 4, !tbaa !9
  %19 = sext i32 %18 to i64
  %20 = getelementptr inbounds ptr, ptr %17, i64 %19
  %21 = load ptr, ptr %20, align 8, !tbaa !5
  %22 = load ptr, ptr %10, align 8, !tbaa !11
  %23 = getelementptr inbounds ptr, ptr %22, i64 8
  %24 = load ptr, ptr %23, align 8
  %25 = call noundef zeroext i1 %24(ptr noundef nonnull align 8 dereferenceable(192) %10, ptr noundef %21)
  br i1 %25, label %26, label %27

26:                                               ; preds = %16
  store i1 true, ptr %4, align 1
  store i32 1, ptr %9, align 4
  br label %31

27:                                               ; preds = %16
  br label %28

28:                                               ; preds = %27
  %29 = load i32, ptr %8, align 4, !tbaa !9
  %30 = add nsw i32 %29, 1
  store i32 %30, ptr %8, align 4, !tbaa !9
  br label %11, !llvm.loop !13

31:                                               ; preds = %26, %15
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #2
  %32 = load i32, ptr %9, align 4
  switch i32 %32, label %36 [
    i32 2, label %33
    i32 1, label %34
  ]

33:                                               ; preds = %31
  store i1 false, ptr %4, align 1
  br label %34

34:                                               ; preds = %33, %31
  %35 = load i1, ptr %4, align 1
  ret i1 %35

36:                                               ; preds = %31
  unreachable
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #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 = !{!12, !12, i64 0}
!12 = !{!"vtable pointer", !8, 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: mustprogress uwtable
define dso_local noundef zeroext i1 @_ZN7glslang14TParseVersions18extensionsTurnedOnEiPKPKc(ptr noundef nonnull align 8 dereferenceable(192) %0, i32 noundef %1, ptr nocapture noundef readonly %2) unnamed_addr #0 align 2 {
  %.not9 = icmp sgt i32 %1, 0
  br i1 %.not9, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %3
  %4 = zext nneg i32 %1 to i64
  %wide.trip.count = zext nneg i32 %1 to i64
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = load ptr, ptr %0, align 8, !tbaa !9
  %7 = getelementptr inbounds i8, ptr %6, i64 64
  %8 = load ptr, ptr %7, align 8
  %9 = tail call noundef zeroext i1 %8(ptr noundef nonnull align 8 dereferenceable(192) %0, ptr noundef %5)
  br i1 %9, label %._crit_edge, label %.lr.ph15

.lr.ph15:                                         ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv14 = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %.lr.ph.preheader ]
  %indvars.iv.next = add nuw nsw i64 %indvars.iv14, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge.loopexit, label %.lr.ph, !llvm.loop !11

.lr.ph:                                           ; preds = %.lr.ph15
  %10 = getelementptr inbounds ptr, ptr %2, i64 %indvars.iv.next
  %11 = load ptr, ptr %10, align 8, !tbaa !5
  %12 = load ptr, ptr %0, align 8, !tbaa !9
  %13 = getelementptr inbounds i8, ptr %12, i64 64
  %14 = load ptr, ptr %13, align 8
  %15 = tail call noundef zeroext i1 %14(ptr noundef nonnull align 8 dereferenceable(192) %0, ptr noundef %11)
  br i1 %15, label %._crit_edge.loopexit, label %.lr.ph15, !llvm.loop !11

._crit_edge.loopexit:                             ; preds = %.lr.ph15, %.lr.ph
  %.not.le = icmp ult i64 %indvars.iv.next, %4
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %.lr.ph.preheader, %3
  %.not.lcssa = phi i1 [ false, %3 ], [ true, %.lr.ph.preheader ], [ %.not.le, %._crit_edge.loopexit ]
  ret i1 %.not.lcssa
}

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 = !{!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 = !{!"vtable pointer", !8, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


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