; LLVM IR from heroseh/cgm :: cgm (CgmMat4x4_from_3x2)

; 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"

%union.CgmVec4 = type { %struct.anon.1 }
%struct.anon.1 = type { float, float, float, float }
%union.CgmVec2 = type { %struct.anon }
%struct.anon = type { float, float }

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #0

; Function Attrs: nounwind uwtable
define dso_local void @CgmMat4x4_from_3x2(ptr noundef %0, ptr noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca %union.CgmVec4, align 4
  %6 = alloca %union.CgmVec4, align 4
  %7 = alloca %union.CgmVec4, align 4
  %8 = alloca %union.CgmVec4, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %9 = load ptr, ptr %3, align 8, !tbaa !5
  %10 = getelementptr inbounds [4 x %union.CgmVec4], ptr %9, i64 0, i64 0
  %11 = getelementptr inbounds %struct.anon.1, ptr %5, i32 0, i32 0
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = getelementptr inbounds [3 x %union.CgmVec2], ptr %12, i64 0, i64 0
  %14 = getelementptr inbounds %struct.anon, ptr %13, i32 0, i32 0
  %15 = load float, ptr %14, align 4, !tbaa !9
  store float %15, ptr %11, align 4, !tbaa !10
  %16 = getelementptr inbounds %struct.anon.1, ptr %5, i32 0, i32 1
  %17 = load ptr, ptr %4, align 8, !tbaa !5
  %18 = getelementptr inbounds [3 x %union.CgmVec2], ptr %17, i64 0, i64 0
  %19 = getelementptr inbounds %struct.anon, ptr %18, i32 0, i32 1
  %20 = load float, ptr %19, align 4, !tbaa !9
  store float %20, ptr %16, align 4, !tbaa !13
  %21 = getelementptr inbounds %struct.anon.1, ptr %5, i32 0, i32 2
  store float 0.000000e+00, ptr %21, align 4, !tbaa !14
  %22 = getelementptr inbounds %struct.anon.1, ptr %5, i32 0, i32 3
  store float 0.000000e+00, ptr %22, align 4, !tbaa !15
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %10, ptr align 4 %5, i64 16, i1 false), !tbaa.struct !16
  %23 = load ptr, ptr %3, align 8, !tbaa !5
  %24 = getelementptr inbounds [4 x %union.CgmVec4], ptr %23, i64 0, i64 1
  %25 = getelementptr inbounds %struct.anon.1, ptr %6, i32 0, i32 0
  %26 = load ptr, ptr %4, align 8, !tbaa !5
  %27 = getelementptr inbounds [3 x %union.CgmVec2], ptr %26, i64 0, i64 1
  %28 = getelementptr inbounds %struct.anon, ptr %27, i32 0, i32 0
  %29 = load float, ptr %28, align 4, !tbaa !9
  store float %29, ptr %25, align 4, !tbaa !10
  %30 = getelementptr inbounds %struct.anon.1, ptr %6, i32 0, i32 1
  %31 = load ptr, ptr %4, align 8, !tbaa !5
  %32 = getelementptr inbounds [3 x %union.CgmVec2], ptr %31, i64 0, i64 1
  %33 = getelementptr inbounds %struct.anon, ptr %32, i32 0, i32 1
  %34 = load float, ptr %33, align 4, !tbaa !9
  store float %34, ptr %30, align 4, !tbaa !13
  %35 = getelementptr inbounds %struct.anon.1, ptr %6, i32 0, i32 2
  store float 0.000000e+00, ptr %35, align 4, !tbaa !14
  %36 = getelementptr inbounds %struct.anon.1, ptr %6, i32 0, i32 3
  store float 0.000000e+00, ptr %36, align 4, !tbaa !15
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %24, ptr align 4 %6, i64 16, i1 false), !tbaa.struct !16
  %37 = load ptr, ptr %3, align 8, !tbaa !5
  %38 = getelementptr inbounds [4 x %union.CgmVec4], ptr %37, i64 0, i64 2
  %39 = getelementptr inbounds %struct.anon.1, ptr %7, i32 0, i32 0
  store float 0.000000e+00, ptr %39, align 4, !tbaa !10
  %40 = getelementptr inbounds %struct.anon.1, ptr %7, i32 0, i32 1
  store float 0.000000e+00, ptr %40, align 4, !tbaa !13
  %41 = getelementptr inbounds %struct.anon.1, ptr %7, i32 0, i32 2
  store float 1.000000e+00, ptr %41, align 4, !tbaa !14
  %42 = getelementptr inbounds %struct.anon.1, ptr %7, i32 0, i32 3
  store float 0.000000e+00, ptr %42, align 4, !tbaa !15
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %38, ptr align 4 %7, i64 16, i1 false), !tbaa.struct !16
  %43 = load ptr, ptr %3, align 8, !tbaa !5
  %44 = getelementptr inbounds [4 x %union.CgmVec4], ptr %43, i64 0, i64 3
  %45 = getelementptr inbounds %struct.anon.1, ptr %8, i32 0, i32 0
  %46 = load ptr, ptr %4, align 8, !tbaa !5
  %47 = getelementptr inbounds [3 x %union.CgmVec2], ptr %46, i64 0, i64 3
  %48 = getelementptr inbounds %struct.anon, ptr %47, i32 0, i32 0
  %49 = load float, ptr %48, align 4, !tbaa !9
  store float %49, ptr %45, align 4, !tbaa !10
  %50 = getelementptr inbounds %struct.anon.1, ptr %8, i32 0, i32 1
  %51 = load ptr, ptr %4, align 8, !tbaa !5
  %52 = getelementptr inbounds [3 x %union.CgmVec2], ptr %51, i64 0, i64 3
  %53 = getelementptr inbounds %struct.anon, ptr %52, i32 0, i32 1
  %54 = load float, ptr %53, align 4, !tbaa !9
  store float %54, ptr %50, align 4, !tbaa !13
  %55 = getelementptr inbounds %struct.anon.1, ptr %8, i32 0, i32 2
  store float 0.000000e+00, ptr %55, align 4, !tbaa !14
  %56 = getelementptr inbounds %struct.anon.1, ptr %8, i32 0, i32 3
  store float 1.000000e+00, ptr %56, align 4, !tbaa !15
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %44, ptr align 4 %8, i64 16, i1 false), !tbaa.struct !16
  ret void
}

attributes #0 = { nocallback nofree 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" }

!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, !12, i64 0}
!11 = !{!"", !12, i64 0, !12, i64 4, !12, i64 8, !12, i64 12}
!12 = !{!"float", !7, i64 0}
!13 = !{!11, !12, i64 4}
!14 = !{!11, !12, i64 8}
!15 = !{!11, !12, i64 12}
!16 = !{i64 0, i64 16, !9}


; 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: readwrite) uwtable
define dso_local void @CgmMat4x4_from_3x2(ptr nocapture noundef writeonly %0, ptr nocapture noundef readonly %1) local_unnamed_addr #0 {
  %3 = load <2 x float>, ptr %1, align 4, !tbaa !5
  store <2 x float> %3, ptr %0, align 4
  %.sroa.311.0..sroa_idx = getelementptr inbounds i8, ptr %0, i64 8
  store <2 x float> zeroinitializer, ptr %.sroa.311.0..sroa_idx, align 4
  %4 = getelementptr inbounds i8, ptr %0, i64 16
  %5 = getelementptr inbounds i8, ptr %1, i64 8
  %6 = load <2 x float>, ptr %5, align 4, !tbaa !5
  store <2 x float> %6, ptr %4, align 4
  %.sroa.37.0..sroa_idx = getelementptr inbounds i8, ptr %0, i64 24
  %.sroa.33.0..sroa_idx = getelementptr inbounds i8, ptr %0, i64 40
  tail call void @llvm.memset.p0.i64(ptr noundef nonnull align 4 dereferenceable(16) %.sroa.37.0..sroa_idx, i8 0, i64 16, i1 false)
  store <2 x float> <float 1.000000e+00, float 0.000000e+00>, ptr %.sroa.33.0..sroa_idx, align 4
  %7 = getelementptr inbounds i8, ptr %0, i64 48
  %8 = getelementptr inbounds i8, ptr %1, i64 24
  %9 = load <2 x float>, ptr %8, align 4, !tbaa !5
  store <2 x float> %9, ptr %7, align 4
  %.sroa.3.0..sroa_idx = getelementptr inbounds i8, ptr %0, i64 56
  store <2 x float> <float 0.000000e+00, float 1.000000e+00>, ptr %.sroa.3.0..sroa_idx, align 4
  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: 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" }
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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}


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