; LLVM IR from drohmer/cgp :: library/cgp/06_mat/mat4/mat4.ll (ZN3cgp12matrix_stackIfLi4ELi4EE14build_constantEf)

; 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.cgp::matrix_stack" = type { %"struct.cgp::numarray_stack" }
%"struct.cgp::numarray_stack" = type { %"struct.cgp::numarray_stack.0", %"struct.cgp::numarray_stack.0", %"struct.cgp::numarray_stack.0", %"struct.cgp::numarray_stack.0" }
%"struct.cgp::numarray_stack.0" = type { float, float, float, float }
%"class.std::initializer_list" = type { ptr, i64 }

; 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 void @_ZN3cgp12matrix_stackIfLi4ELi4EE14build_constantEf(ptr dead_on_unwind noalias writable sret(%"struct.cgp::matrix_stack") align 4 %0, float noundef %1) #1 align 2 {
  %3 = alloca float, align 4
  %4 = alloca %"class.std::initializer_list", align 8
  %5 = alloca [16 x float], align 4
  store float %1, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 16, ptr %4) #2
  call void @llvm.lifetime.start.p0(i64 64, ptr %5) #2
  %6 = load float, ptr %3, align 4, !tbaa !5
  store float %6, ptr %5, align 4, !tbaa !5
  %7 = getelementptr inbounds float, ptr %5, i64 1
  %8 = load float, ptr %3, align 4, !tbaa !5
  store float %8, ptr %7, align 4, !tbaa !5
  %9 = getelementptr inbounds float, ptr %5, i64 2
  %10 = load float, ptr %3, align 4, !tbaa !5
  store float %10, ptr %9, align 4, !tbaa !5
  %11 = getelementptr inbounds float, ptr %5, i64 3
  %12 = load float, ptr %3, align 4, !tbaa !5
  store float %12, ptr %11, align 4, !tbaa !5
  %13 = getelementptr inbounds float, ptr %5, i64 4
  %14 = load float, ptr %3, align 4, !tbaa !5
  store float %14, ptr %13, align 4, !tbaa !5
  %15 = getelementptr inbounds float, ptr %5, i64 5
  %16 = load float, ptr %3, align 4, !tbaa !5
  store float %16, ptr %15, align 4, !tbaa !5
  %17 = getelementptr inbounds float, ptr %5, i64 6
  %18 = load float, ptr %3, align 4, !tbaa !5
  store float %18, ptr %17, align 4, !tbaa !5
  %19 = getelementptr inbounds float, ptr %5, i64 7
  %20 = load float, ptr %3, align 4, !tbaa !5
  store float %20, ptr %19, align 4, !tbaa !5
  %21 = getelementptr inbounds float, ptr %5, i64 8
  %22 = load float, ptr %3, align 4, !tbaa !5
  store float %22, ptr %21, align 4, !tbaa !5
  %23 = getelementptr inbounds float, ptr %5, i64 9
  %24 = load float, ptr %3, align 4, !tbaa !5
  store float %24, ptr %23, align 4, !tbaa !5
  %25 = getelementptr inbounds float, ptr %5, i64 10
  %26 = load float, ptr %3, align 4, !tbaa !5
  store float %26, ptr %25, align 4, !tbaa !5
  %27 = getelementptr inbounds float, ptr %5, i64 11
  %28 = load float, ptr %3, align 4, !tbaa !5
  store float %28, ptr %27, align 4, !tbaa !5
  %29 = getelementptr inbounds float, ptr %5, i64 12
  %30 = load float, ptr %3, align 4, !tbaa !5
  store float %30, ptr %29, align 4, !tbaa !5
  %31 = getelementptr inbounds float, ptr %5, i64 13
  %32 = load float, ptr %3, align 4, !tbaa !5
  store float %32, ptr %31, align 4, !tbaa !5
  %33 = getelementptr inbounds float, ptr %5, i64 14
  %34 = load float, ptr %3, align 4, !tbaa !5
  store float %34, ptr %33, align 4, !tbaa !5
  %35 = getelementptr inbounds float, ptr %5, i64 15
  %36 = load float, ptr %3, align 4, !tbaa !5
  store float %36, ptr %35, align 4, !tbaa !5
  %37 = getelementptr inbounds %"class.std::initializer_list", ptr %4, i32 0, i32 0
  store ptr %5, ptr %37, align 8, !tbaa !9
  %38 = getelementptr inbounds %"class.std::initializer_list", ptr %4, i32 0, i32 1
  store i64 16, ptr %38, align 8, !tbaa !13
  call void @_ZN3cgp12matrix_stackIfLi4ELi4EEC1ERKSt16initializer_listIfE(ptr noundef nonnull align 4 dereferenceable(64) %0, ptr noundef nonnull align 8 dereferenceable(16) %4)
  call void @llvm.lifetime.end.p0(i64 64, ptr %5) #2
  call void @llvm.lifetime.end.p0(i64 16, ptr %4) #2
  ret void
}

declare void @_ZN3cgp12matrix_stackIfLi4ELi4EEC1ERKSt16initializer_listIfE(ptr, ptr)

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 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"_ZTSSt16initializer_listIfE", !11, i64 0, !12, i64 8}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!10, !12, i64 8}


; 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"

%"struct.cgp::matrix_stack" = type { %"struct.cgp::numarray_stack" }
%"struct.cgp::numarray_stack" = type { %"struct.cgp::numarray_stack.0", %"struct.cgp::numarray_stack.0", %"struct.cgp::numarray_stack.0", %"struct.cgp::numarray_stack.0" }
%"struct.cgp::numarray_stack.0" = type { float, float, float, float }
%"class.std::initializer_list" = type { ptr, i64 }

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress 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 void @_ZN3cgp12matrix_stackIfLi4ELi4EE14build_constantEf(ptr dead_on_unwind noalias writable sret(%"struct.cgp::matrix_stack") align 4 %0, float noundef %1) local_unnamed_addr #1 align 2 {
  %3 = alloca %"class.std::initializer_list", align 8
  %4 = alloca [16 x float], align 16
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %3) #2
  call void @llvm.lifetime.start.p0(i64 64, ptr nonnull %4) #2
  %5 = insertelement <4 x float> poison, float %1, i64 0
  %6 = shufflevector <4 x float> %5, <4 x float> poison, <4 x i32> zeroinitializer
  store <4 x float> %6, ptr %4, align 16, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %4, i64 16
  store <4 x float> %6, ptr %7, align 16, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %4, i64 32
  store <4 x float> %6, ptr %8, align 16, !tbaa !5
  %9 = getelementptr inbounds i8, ptr %4, i64 48
  store <4 x float> %6, ptr %9, align 16, !tbaa !5
  store ptr %4, ptr %3, align 8, !tbaa !9
  %10 = getelementptr inbounds i8, ptr %3, i64 8
  store i64 16, ptr %10, align 8, !tbaa !13
  call void @_ZN3cgp12matrix_stackIfLi4ELi4EEC1ERKSt16initializer_listIfE(ptr noundef nonnull align 4 dereferenceable(64) %0, ptr noundef nonnull align 8 dereferenceable(16) %3)
  call void @llvm.lifetime.end.p0(i64 64, ptr nonnull %4) #2
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #2
  ret void
}

declare void @_ZN3cgp12matrix_stackIfLi4ELi4EEC1ERKSt16initializer_listIfE(ptr, ptr) local_unnamed_addr

attributes #0 = { mustprogress 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 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"_ZTSSt16initializer_listIfE", !11, i64 0, !12, i64 8}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!10, !12, i64 8}


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