; LLVM IR from heroseh/cgm :: cgm (CgmMat3x2_identity)

; 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.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 @CgmMat3x2_identity(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca %union.CgmVec2, align 4
  %4 = alloca %union.CgmVec2, align 4
  %5 = alloca %union.CgmVec2, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  %6 = load ptr, ptr %2, align 8, !tbaa !5
  %7 = getelementptr inbounds [3 x %union.CgmVec2], ptr %6, i64 0, i64 0
  %8 = getelementptr inbounds %struct.anon, ptr %3, i32 0, i32 0
  store float 1.000000e+00, ptr %8, align 4, !tbaa !9
  %9 = getelementptr inbounds %struct.anon, ptr %3, i32 0, i32 1
  store float 0.000000e+00, ptr %9, align 4, !tbaa !12
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %7, ptr align 4 %3, i64 8, i1 false), !tbaa.struct !13
  %10 = load ptr, ptr %2, align 8, !tbaa !5
  %11 = getelementptr inbounds [3 x %union.CgmVec2], ptr %10, i64 0, i64 1
  %12 = getelementptr inbounds %struct.anon, ptr %4, i32 0, i32 0
  store float 0.000000e+00, ptr %12, align 4, !tbaa !9
  %13 = getelementptr inbounds %struct.anon, ptr %4, i32 0, i32 1
  store float 1.000000e+00, ptr %13, align 4, !tbaa !12
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %11, ptr align 4 %4, i64 8, i1 false), !tbaa.struct !13
  %14 = load ptr, ptr %2, align 8, !tbaa !5
  %15 = getelementptr inbounds [3 x %union.CgmVec2], ptr %14, i64 0, i64 2
  %16 = getelementptr inbounds %struct.anon, ptr %5, i32 0, i32 0
  store float 0.000000e+00, ptr %16, align 4, !tbaa !9
  %17 = getelementptr inbounds %struct.anon, ptr %5, i32 0, i32 1
  store float 0.000000e+00, ptr %17, align 4, !tbaa !12
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %15, ptr align 4 %5, i64 8, i1 false), !tbaa.struct !13
  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 = !{!10, !11, i64 0}
!10 = !{!"", !11, i64 0, !11, i64 4}
!11 = !{!"float", !7, i64 0}
!12 = !{!10, !11, i64 4}
!13 = !{i64 0, i64 8, !14}
!14 = !{!7, !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 @CgmMat3x2_identity(ptr nocapture noundef writeonly %0) local_unnamed_addr #0 {
  store <4 x float> <float 1.000000e+00, float 0.000000e+00, float 0.000000e+00, float 1.000000e+00>, ptr %0, align 4
  %2 = getelementptr inbounds i8, ptr %0, i64 16
  store <2 x float> zeroinitializer, ptr %2, align 4
  ret void
}

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" }

!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)"}


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