; LLVM IR from amorcomputrum/ExstarNGINE :: src/Utils/Matrix2.ll (ZN6exstar7Matrix2mlENS_8Vector2dE)

; 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"

%"class.exstar::Vector2d" = type { double, double }
%"class.exstar::Matrix2" = type { float, float, float, float }

; Function Attrs: mustprogress uwtable
define dso_local { double, double } @_ZN6exstar7Matrix2mlENS_8Vector2dE(ptr noundef nonnull align 4 dereferenceable(16) %0, double %1, double %2) #0 align 2 {
  %4 = alloca %"class.exstar::Vector2d", align 8
  %5 = alloca %"class.exstar::Vector2d", align 8
  %6 = alloca ptr, align 8
  %7 = getelementptr inbounds { double, double }, ptr %5, i32 0, i32 0
  store double %1, ptr %7, align 8
  %8 = getelementptr inbounds { double, double }, ptr %5, i32 0, i32 1
  store double %2, ptr %8, align 8
  store ptr %0, ptr %6, align 8, !tbaa !5
  %9 = load ptr, ptr %6, align 8
  %10 = getelementptr inbounds %"class.exstar::Matrix2", ptr %9, i32 0, i32 0
  %11 = load float, ptr %10, align 4, !tbaa !9
  %12 = fpext float %11 to double
  %13 = getelementptr inbounds %"class.exstar::Vector2d", ptr %5, i32 0, i32 0
  %14 = load double, ptr %13, align 8, !tbaa !12
  %15 = getelementptr inbounds %"class.exstar::Matrix2", ptr %9, i32 0, i32 1
  %16 = load float, ptr %15, align 4, !tbaa !15
  %17 = fpext float %16 to double
  %18 = getelementptr inbounds %"class.exstar::Vector2d", ptr %5, i32 0, i32 1
  %19 = load double, ptr %18, align 8, !tbaa !16
  %20 = fmul double %17, %19
  %21 = call double @llvm.fmuladd.f64(double %12, double %14, double %20)
  %22 = getelementptr inbounds %"class.exstar::Matrix2", ptr %9, i32 0, i32 2
  %23 = load float, ptr %22, align 4, !tbaa !17
  %24 = fpext float %23 to double
  %25 = getelementptr inbounds %"class.exstar::Vector2d", ptr %5, i32 0, i32 0
  %26 = load double, ptr %25, align 8, !tbaa !12
  %27 = getelementptr inbounds %"class.exstar::Matrix2", ptr %9, i32 0, i32 3
  %28 = load float, ptr %27, align 4, !tbaa !18
  %29 = fpext float %28 to double
  %30 = getelementptr inbounds %"class.exstar::Vector2d", ptr %5, i32 0, i32 1
  %31 = load double, ptr %30, align 8, !tbaa !16
  %32 = fmul double %29, %31
  %33 = call double @llvm.fmuladd.f64(double %24, double %26, double %32)
  call void @_ZN6exstar8Vector2dC1Edd(ptr noundef nonnull align 8 dereferenceable(16) %4, double noundef %21, double noundef %33)
  %34 = load { double, double }, ptr %4, align 8
  ret { double, double } %34
}

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #1

declare void @_ZN6exstar8Vector2dC1Edd(ptr noundef nonnull align 8 dereferenceable(16), double noundef, double noundef) unnamed_addr #2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { "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, !11, i64 0}
!10 = !{!"_ZTSN6exstar7Matrix2E", !11, i64 0, !11, i64 4, !11, i64 8, !11, i64 12}
!11 = !{!"float", !7, i64 0}
!12 = !{!13, !14, i64 0}
!13 = !{!"_ZTSN6exstar8Vector2dE", !14, i64 0, !14, i64 8}
!14 = !{!"double", !7, i64 0}
!15 = !{!10, !11, i64 4}
!16 = !{!13, !14, i64 8}
!17 = !{!10, !11, i64 8}
!18 = !{!10, !11, i64 12}


; 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"

%"class.exstar::Vector2d" = type { double, double }

; Function Attrs: mustprogress uwtable
define dso_local { double, double } @_ZN6exstar7Matrix2mlENS_8Vector2dE(ptr nocapture noundef nonnull readonly align 4 dereferenceable(16) %0, double %1, double %2) local_unnamed_addr #0 align 2 {
  %4 = alloca %"class.exstar::Vector2d", align 8
  %5 = load float, ptr %0, align 4, !tbaa !5
  %6 = fpext float %5 to double
  %7 = getelementptr inbounds i8, ptr %0, i64 4
  %8 = load float, ptr %7, align 4, !tbaa !10
  %9 = fpext float %8 to double
  %10 = fmul double %9, %2
  %11 = tail call double @llvm.fmuladd.f64(double %6, double %1, double %10)
  %12 = getelementptr inbounds i8, ptr %0, i64 8
  %13 = load float, ptr %12, align 4, !tbaa !11
  %14 = fpext float %13 to double
  %15 = getelementptr inbounds i8, ptr %0, i64 12
  %16 = load float, ptr %15, align 4, !tbaa !12
  %17 = fpext float %16 to double
  %18 = fmul double %17, %2
  %19 = tail call double @llvm.fmuladd.f64(double %14, double %1, double %18)
  call void @_ZN6exstar8Vector2dC1Edd(ptr noundef nonnull align 8 dereferenceable(16) %4, double noundef %11, double noundef %19)
  %.fca.0.load = load double, ptr %4, align 8
  %.fca.0.insert = insertvalue { double, double } poison, double %.fca.0.load, 0
  %.fca.1.gep = getelementptr inbounds i8, ptr %4, i64 8
  %.fca.1.load = load double, ptr %.fca.1.gep, align 8
  %.fca.1.insert = insertvalue { double, double } %.fca.0.insert, double %.fca.1.load, 1
  ret { double, double } %.fca.1.insert
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #1

declare void @_ZN6exstar8Vector2dC1Edd(ptr noundef nonnull align 8 dereferenceable(16), double noundef, double noundef) unnamed_addr #2

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { "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, !7, i64 0}
!6 = !{!"_ZTSN6exstar7Matrix2E", !7, i64 0, !7, i64 4, !7, i64 8, !7, i64 12}
!7 = !{!"float", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!6, !7, i64 4}
!11 = !{!6, !7, i64 8}
!12 = !{!6, !7, i64 12}


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