; LLVM IR from goldest-star/seawave-animation :: src/vcl/math/mat/mat4/mat4.ll (ZNK3vcl3matILm4ELm4EE4vec3Ev)

; 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.vcl::buffer_stack" = type { float, float, float }
%"struct.vcl::mat.2" = type { %"struct.std::array" }
%"struct.std::array" = type { [3 x float] }

; 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 { <2 x float>, float } @_ZNK3vcl3matILm4ELm4EE4vec3Ev(ptr noundef nonnull align 4 dereferenceable(64) %0) #1 align 2 {
  %2 = alloca %"struct.vcl::buffer_stack", align 4
  %3 = alloca ptr, align 8
  %4 = alloca %"struct.vcl::mat.2", align 4
  %5 = alloca { <2 x float>, float }, align 8
  %6 = alloca { <2 x float>, float }, align 8
  %7 = alloca { <2 x float>, float }, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  %8 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 12, ptr %4) #4
  %9 = call { <2 x float>, float } @_ZN3vcl6submatILm3ELm1ELm4ELm4EEENS_3matIXT_EXT0_EEERKNS1_IXT1_EXT2_EEEmm(ptr noundef nonnull align 4 dereferenceable(64) %8, i64 noundef 0, i64 noundef 3)
  %10 = getelementptr inbounds %"struct.vcl::mat.2", ptr %4, i32 0, i32 0
  %11 = getelementptr inbounds %"struct.std::array", ptr %10, i32 0, i32 0
  store { <2 x float>, float } %9, ptr %5, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %11, ptr align 8 %5, i64 12, i1 false)
  %12 = call { <2 x float>, float } @_ZN3vcl7mat2vecILm3EEENS_12buffer_stackIfXT_EEERKNS_3matIXT_ELm1EEE(ptr noundef nonnull align 4 dereferenceable(12) %4)
  store { <2 x float>, float } %12, ptr %6, align 8
  call void @llvm.memcpy.p0.p0.i64(ptr align 4 %2, ptr align 8 %6, i64 12, i1 false)
  call void @llvm.lifetime.end.p0(i64 12, ptr %4) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 8 %7, ptr align 4 %2, i64 12, i1 false)
  %13 = load { <2 x float>, float }, ptr %7, align 8
  ret { <2 x float>, float } %13
}

; Function Attrs: mustprogress uwtable
declare dso_local { <2 x float>, float } @_ZN3vcl7mat2vecILm3EEENS_12buffer_stackIfXT_EEERKNS_3matIXT_ELm1EEE(ptr noundef nonnull align 4 dereferenceable(12)) #2

; Function Attrs: mustprogress uwtable
declare dso_local { <2 x float>, float } @_ZN3vcl6submatILm3ELm1ELm4ELm4EEENS_3matIXT_EXT0_EEERKNS1_IXT1_EXT2_EEEmm(ptr noundef nonnull align 4 dereferenceable(64), i64 noundef, i64 noundef) #2

; 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) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress uwtable "min-legal-vector-width"="64" "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 = { 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 #3 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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"}


; 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.vcl::mat.2" = type { %"struct.std::array" }
%"struct.std::array" = type { [3 x float] }

; 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 { <2 x float>, float } @_ZNK3vcl3matILm4ELm4EE4vec3Ev(ptr noundef nonnull align 4 dereferenceable(64) %0) local_unnamed_addr #1 align 2 {
  %2 = alloca %"struct.vcl::mat.2", align 8
  call void @llvm.lifetime.start.p0(i64 12, ptr nonnull %2) #3
  %3 = tail call { <2 x float>, float } @_ZN3vcl6submatILm3ELm1ELm4ELm4EEENS_3matIXT_EXT0_EEERKNS1_IXT1_EXT2_EEEmm(ptr noundef nonnull align 4 dereferenceable(64) %0, i64 noundef 0, i64 noundef 3)
  %.fca.0.extract3 = extractvalue { <2 x float>, float } %3, 0
  %.fca.1.extract4 = extractvalue { <2 x float>, float } %3, 1
  store <2 x float> %.fca.0.extract3, ptr %2, align 8
  %.sroa.26.0..sroa_idx = getelementptr inbounds i8, ptr %2, i64 8
  store float %.fca.1.extract4, ptr %.sroa.26.0..sroa_idx, align 8
  %4 = call { <2 x float>, float } @_ZN3vcl7mat2vecILm3EEENS_12buffer_stackIfXT_EEERKNS_3matIXT_ELm1EEE(ptr noundef nonnull align 4 dereferenceable(12) %2)
  call void @llvm.lifetime.end.p0(i64 12, ptr nonnull %2) #3
  ret { <2 x float>, float } %4
}

; Function Attrs: mustprogress uwtable
declare dso_local { <2 x float>, float } @_ZN3vcl7mat2vecILm3EEENS_12buffer_stackIfXT_EEERKNS_3matIXT_ELm1EEE(ptr noundef nonnull align 4 dereferenceable(12)) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local { <2 x float>, float } @_ZN3vcl6submatILm3ELm1ELm4ELm4EEENS_3matIXT_EXT0_EEERKNS1_IXT1_EXT2_EEEmm(ptr noundef nonnull align 4 dereferenceable(64), i64 noundef, i64 noundef) local_unnamed_addr #2

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress uwtable "min-legal-vector-width"="64" "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 = { 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 #3 = { 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)"}


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