llvm/test/CodeGen/X86/pr18344.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse4.1 | FileCheck %s --check-prefix=X86
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 | FileCheck %s --check-prefix=X64

%v4_varying_complex = type { <4 x float>, <4 x float> }

define void @FFT(%v4_varying_complex* noalias nocapture %destination, float* noalias %re, <4 x i32>* noalias nocapture %ptr_cast_for_load) nounwind {
; X86-LABEL: FFT:
; X86:       # %bb.0: # %begin
; X86-NEXT:    pushl %ebx
; X86-NEXT:    pushl %edi
; X86-NEXT:    pushl %esi
; X86-NEXT:    movl {{[0-9]+}}(%esp), %eax
; X86-NEXT:    movl {{[0-9]+}}(%esp), %ecx
; X86-NEXT:    movl {{[0-9]+}}(%esp), %edx
; X86-NEXT:    movdqu (%edx), %xmm0
; X86-NEXT:    pslld $4, %xmm0
; X86-NEXT:    movd %xmm0, %edx
; X86-NEXT:    pextrd $1, %xmm0, %esi
; X86-NEXT:    pextrd $2, %xmm0, %edi
; X86-NEXT:    pextrd $3, %xmm0, %ebx
; X86-NEXT:    movss {{.*#+}} xmm0 = mem[0],zero,zero,zero
; X86-NEXT:    movss {{.*#+}} xmm1 = mem[0],zero,zero,zero
; X86-NEXT:    movss {{.*#+}} xmm2 = mem[0],zero,zero,zero
; X86-NEXT:    movss {{.*#+}} xmm3 = mem[0],zero,zero,zero
; X86-NEXT:    movss %xmm0, 128(%eax)
; X86-NEXT:    movss %xmm1, 164(%eax)
; X86-NEXT:    movss %xmm2, 200(%eax)
; X86-NEXT:    movss %xmm3, 236(%eax)
; X86-NEXT:    popl %esi
; X86-NEXT:    popl %edi
; X86-NEXT:    popl %ebx
; X86-NEXT:    retl
;
; X64-LABEL: FFT:
; X64:       # %bb.0: # %begin
; X64-NEXT:    movdqu (%rdx), %xmm0
; X64-NEXT:    pslld $4, %xmm0
; X64-NEXT:    movq %xmm0, %rax
; X64-NEXT:    movslq %eax, %r8
; X64-NEXT:    sarq $32, %rax
; X64-NEXT:    pextrq $1, %xmm0, %rdx
; X64-NEXT:    movslq %edx, %rcx
; X64-NEXT:    sarq $32, %rdx
; X64-NEXT:    movss {{.*#+}} xmm0 = mem[0],zero,zero,zero
; X64-NEXT:    movss {{.*#+}} xmm1 = mem[0],zero,zero,zero
; X64-NEXT:    movss {{.*#+}} xmm2 = mem[0],zero,zero,zero
; X64-NEXT:    movss {{.*#+}} xmm3 = mem[0],zero,zero,zero
; X64-NEXT:    movss %xmm0, 128(%rdi)
; X64-NEXT:    movss %xmm1, 164(%rdi)
; X64-NEXT:    movss %xmm2, 200(%rdi)
; X64-NEXT:    movss %xmm3, 236(%rdi)
; X64-NEXT:    retq
begin:
  %ptr_masked_load79 = load <4 x i32>, <4 x i32>* %ptr_cast_for_load, align 4
  %mul__bitReversedProgramIndex_load = shl <4 x i32> %ptr_masked_load79, <i32 4, i32 4, i32 4, i32 4>

  %offset32_1 = extractelement <4 x i32> %mul__bitReversedProgramIndex_load, i32 0
  %ptroffset_1 = sext i32 %offset32_1 to i64
  %offset32_2 = extractelement <4 x i32> %mul__bitReversedProgramIndex_load, i32 1
  %ptroffset_2 = sext i32 %offset32_2 to i64
  %offset32_3 = extractelement <4 x i32> %mul__bitReversedProgramIndex_load, i32 2
  %ptroffset_3 = sext i32 %offset32_3 to i64
  %offset32_4 = extractelement <4 x i32> %mul__bitReversedProgramIndex_load, i32 3
  %ptroffset_4 = sext i32 %offset32_4 to i64

  %ptrcast_1 = getelementptr float, float* %re, i64 %ptroffset_1
  %val_1 = load float, float* %ptrcast_1, align 4
  %ptrcast_2 = getelementptr float, float* %re, i64 %ptroffset_2
  %val_2 = load float, float* %ptrcast_2, align 4
  %ptrcast_3 = getelementptr float, float* %re, i64 %ptroffset_3
  %val_3 = load float, float* %ptrcast_3, align 4
  %ptrcast_4 = getelementptr float, float* %re, i64 %ptroffset_4
  %val_4 = load float, float* %ptrcast_4, align 4

  %destination_load_ptr2int_2void = bitcast %v4_varying_complex* %destination to i8*
  %ptrcast1_1 = getelementptr inbounds %v4_varying_complex, %v4_varying_complex* %destination, i64 4, i32 0, i64 0
  store float %val_1, float* %ptrcast1_1, align 4
  %finalptr_2 = getelementptr i8, i8* %destination_load_ptr2int_2void, i64 164
  %ptrcast1_2 = bitcast i8* %finalptr_2 to float*
  store float %val_2, float* %ptrcast1_2, align 4
  %finalptr_3 = getelementptr i8, i8* %destination_load_ptr2int_2void, i64 200
  %ptrcast1_3 = bitcast i8* %finalptr_3 to float*
  store float %val_3, float* %ptrcast1_3, align 4
  %finalptr_4 = getelementptr i8, i8* %destination_load_ptr2int_2void, i64 236
  %ptrcast1_4 = bitcast i8* %finalptr_4 to float*
  store float %val_4, float* %ptrcast1_4, align 4
  ret void
}