; LLVM IR from kkumatani/distant_speech_recognition :: btk20_src/matrix/blas1_c.ll (Z5cabs1St7complexIfE)

; 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.std::complex" = type { { float, float } }

; Function Attrs: mustprogress uwtable
define dso_local noundef float @_Z5cabs1St7complexIfE(<2 x float> %0) #0 {
  %2 = alloca %"class.std::complex", align 4
  %3 = alloca float, align 4
  %4 = getelementptr inbounds %"class.std::complex", ptr %2, i32 0, i32 0
  store <2 x float> %0, ptr %4, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  %5 = call noundef float @_ZSt4realIfET_RKSt7complexIS0_E(ptr noundef nonnull align 4 dereferenceable(8) %2)
  %6 = call noundef float @_Z6r4_absf(float noundef %5)
  %7 = call noundef float @_ZSt4imagIfET_RKSt7complexIS0_E(ptr noundef nonnull align 4 dereferenceable(8) %2)
  %8 = call noundef float @_Z6r4_absf(float noundef %7)
  %9 = fadd float %6, %8
  store float %9, ptr %3, align 4, !tbaa !5
  %10 = load float, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  ret float %10
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef float @_Z6r4_absf(float noundef) #2

; Function Attrs: mustprogress uwtable
declare dso_local noundef float @_ZSt4realIfET_RKSt7complexIS0_E(ptr noundef nonnull align 4 dereferenceable(8)) #3

; Function Attrs: mustprogress uwtable
declare dso_local noundef float @_ZSt4imagIfET_RKSt7complexIS0_E(ptr noundef nonnull align 4 dereferenceable(8)) #3

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { mustprogress 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" }
attributes #3 = { 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 #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 = !{!"float", !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"

%"class.std::complex" = type { { float, float } }

; Function Attrs: mustprogress uwtable
define dso_local noundef float @_Z5cabs1St7complexIfE(<2 x float> %0) local_unnamed_addr #0 {
  %2 = alloca %"class.std::complex", align 8
  store <2 x float> %0, ptr %2, align 8
  %3 = call noundef float @_ZSt4realIfET_RKSt7complexIS0_E(ptr noundef nonnull align 4 dereferenceable(8) %2)
  %4 = call noundef float @_Z6r4_absf(float noundef %3)
  %5 = call noundef float @_ZSt4imagIfET_RKSt7complexIS0_E(ptr noundef nonnull align 4 dereferenceable(8) %2)
  %6 = call noundef float @_Z6r4_absf(float noundef %5)
  %7 = fadd float %4, %6
  ret float %7
}

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef float @_Z6r4_absf(float noundef) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local noundef float @_ZSt4realIfET_RKSt7complexIS0_E(ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
declare dso_local noundef float @_ZSt4imagIfET_RKSt7complexIS0_E(ptr noundef nonnull align 4 dereferenceable(8)) local_unnamed_addr #2

attributes #0 = { 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 #1 = { mustprogress 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" }
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" }

!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,SROAPass