; LLVM IR from ifinver/FinEngine :: finengine/src/main/cpp/Matrix.ll (Z22matrixIdentityFunctionPf)

; 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 nounwind uwtable
define dso_local void @_Z22matrixIdentityFunctionPf(ptr noundef %0) #0 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = icmp eq ptr %3, null
  br i1 %4, label %5, label %6

5:                                                ; preds = %1
  br label %39

6:                                                ; preds = %1
  %7 = load ptr, ptr %2, align 8, !tbaa !5
  %8 = getelementptr inbounds float, ptr %7, i64 0
  store float 1.000000e+00, ptr %8, align 4, !tbaa !9
  %9 = load ptr, ptr %2, align 8, !tbaa !5
  %10 = getelementptr inbounds float, ptr %9, i64 1
  store float 0.000000e+00, ptr %10, align 4, !tbaa !9
  %11 = load ptr, ptr %2, align 8, !tbaa !5
  %12 = getelementptr inbounds float, ptr %11, i64 2
  store float 0.000000e+00, ptr %12, align 4, !tbaa !9
  %13 = load ptr, ptr %2, align 8, !tbaa !5
  %14 = getelementptr inbounds float, ptr %13, i64 3
  store float 0.000000e+00, ptr %14, align 4, !tbaa !9
  %15 = load ptr, ptr %2, align 8, !tbaa !5
  %16 = getelementptr inbounds float, ptr %15, i64 4
  store float 0.000000e+00, ptr %16, align 4, !tbaa !9
  %17 = load ptr, ptr %2, align 8, !tbaa !5
  %18 = getelementptr inbounds float, ptr %17, i64 5
  store float 1.000000e+00, ptr %18, align 4, !tbaa !9
  %19 = load ptr, ptr %2, align 8, !tbaa !5
  %20 = getelementptr inbounds float, ptr %19, i64 6
  store float 0.000000e+00, ptr %20, align 4, !tbaa !9
  %21 = load ptr, ptr %2, align 8, !tbaa !5
  %22 = getelementptr inbounds float, ptr %21, i64 7
  store float 0.000000e+00, ptr %22, align 4, !tbaa !9
  %23 = load ptr, ptr %2, align 8, !tbaa !5
  %24 = getelementptr inbounds float, ptr %23, i64 8
  store float 0.000000e+00, ptr %24, align 4, !tbaa !9
  %25 = load ptr, ptr %2, align 8, !tbaa !5
  %26 = getelementptr inbounds float, ptr %25, i64 9
  store float 0.000000e+00, ptr %26, align 4, !tbaa !9
  %27 = load ptr, ptr %2, align 8, !tbaa !5
  %28 = getelementptr inbounds float, ptr %27, i64 10
  store float 1.000000e+00, ptr %28, align 4, !tbaa !9
  %29 = load ptr, ptr %2, align 8, !tbaa !5
  %30 = getelementptr inbounds float, ptr %29, i64 11
  store float 0.000000e+00, ptr %30, align 4, !tbaa !9
  %31 = load ptr, ptr %2, align 8, !tbaa !5
  %32 = getelementptr inbounds float, ptr %31, i64 12
  store float 0.000000e+00, ptr %32, align 4, !tbaa !9
  %33 = load ptr, ptr %2, align 8, !tbaa !5
  %34 = getelementptr inbounds float, ptr %33, i64 13
  store float 0.000000e+00, ptr %34, align 4, !tbaa !9
  %35 = load ptr, ptr %2, align 8, !tbaa !5
  %36 = getelementptr inbounds float, ptr %35, i64 14
  store float 0.000000e+00, ptr %36, align 4, !tbaa !9
  %37 = load ptr, ptr %2, align 8, !tbaa !5
  %38 = getelementptr inbounds float, ptr %37, i64 15
  store float 1.000000e+00, ptr %38, align 4, !tbaa !9
  br label %39

39:                                               ; preds = %6, %5
  ret void
}

attributes #0 = { mustprogress 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++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"float", !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: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) uwtable
define dso_local void @_Z22matrixIdentityFunctionPf(ptr noundef writeonly %0) local_unnamed_addr #0 {
  %2 = icmp eq ptr %0, null
  br i1 %2, label %10, label %3

3:                                                ; preds = %1
  store float 1.000000e+00, ptr %0, align 4, !tbaa !5
  %4 = getelementptr inbounds i8, ptr %0, i64 4
  %5 = getelementptr inbounds i8, ptr %0, i64 20
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 4 dereferenceable(16) %4, i8 0, i64 16, i1 false)
  store float 1.000000e+00, ptr %5, align 4, !tbaa !5
  %6 = getelementptr inbounds i8, ptr %0, i64 24
  %7 = getelementptr inbounds i8, ptr %0, i64 40
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 4 dereferenceable(16) %6, i8 0, i64 16, i1 false)
  store float 1.000000e+00, ptr %7, align 4, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %0, i64 44
  %9 = getelementptr inbounds i8, ptr %0, i64 60
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 4 dereferenceable(16) %8, i8 0, i64 16, i1 false)
  store float 1.000000e+00, ptr %9, align 4, !tbaa !5
  br label %10

10:                                               ; preds = %1, %3
  ret void
}

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #1

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) 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 nounwind willreturn memory(argmem: write) }

!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 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


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