llvm/test/CodeGen/X86/pr86305.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 4
; RUN: llc < %s -mtriple=x86_64-linux-gnu -mattr=avx512bf16 | FileCheck %s

define void @add(ptr %pa, ptr %pb, ptr %pc) nounwind {
; CHECK-LABEL: add:
; CHECK:       # %bb.0:
; CHECK-NEXT:    pushq %rbx
; CHECK-NEXT:    movq %rdx, %rbx
; CHECK-NEXT:    movzwl (%rsi), %eax
; CHECK-NEXT:    shll $16, %eax
; CHECK-NEXT:    vmovd %eax, %xmm0
; CHECK-NEXT:    movzwl (%rdi), %eax
; CHECK-NEXT:    shll $16, %eax
; CHECK-NEXT:    vmovd %eax, %xmm1
; CHECK-NEXT:    vaddss %xmm0, %xmm1, %xmm0
; CHECK-NEXT:    callq __truncsfbf2@PLT
; CHECK-NEXT:    vpextrw $0, %xmm0, (%rbx)
; CHECK-NEXT:    popq %rbx
; CHECK-NEXT:    retq
  %a = load bfloat, ptr %pa
  %b = load bfloat, ptr %pb
  %add = fadd bfloat %a, %b
  store bfloat %add, ptr %pc
  ret void
}

define <4 x bfloat> @fptrunc_v4f32(<4 x float> %a) nounwind {
; CHECK-LABEL: fptrunc_v4f32:
; CHECK:       # %bb.0:
; CHECK-NEXT:    pushq %rbp
; CHECK-NEXT:    pushq %r14
; CHECK-NEXT:    pushq %rbx
; CHECK-NEXT:    subq $64, %rsp
; CHECK-NEXT:    vmovaps %xmm0, (%rsp) # 16-byte Spill
; CHECK-NEXT:    callq __truncsfbf2@PLT
; CHECK-NEXT:    vmovaps %xmm0, {{[-0-9]+}}(%r{{[sb]}}p) # 16-byte Spill
; CHECK-NEXT:    vmovshdup (%rsp), %xmm0 # 16-byte Folded Reload
; CHECK-NEXT:    # xmm0 = mem[1,1,3,3]
; CHECK-NEXT:    callq __truncsfbf2@PLT
; CHECK-NEXT:    vmovaps %xmm0, {{[-0-9]+}}(%r{{[sb]}}p) # 16-byte Spill
; CHECK-NEXT:    vpshufd $255, (%rsp), %xmm0 # 16-byte Folded Reload
; CHECK-NEXT:    # xmm0 = mem[3,3,3,3]
; CHECK-NEXT:    callq __truncsfbf2@PLT
; CHECK-NEXT:    vmovdqa %xmm0, {{[-0-9]+}}(%r{{[sb]}}p) # 16-byte Spill
; CHECK-NEXT:    callq __truncsfbf2@PLT
; CHECK-NEXT:    vpextrw $0, %xmm0, %ebx
; CHECK-NEXT:    vmovdqa {{[-0-9]+}}(%r{{[sb]}}p), %xmm0 # 16-byte Reload
; CHECK-NEXT:    vpextrw $0, %xmm0, %ebp
; CHECK-NEXT:    vmovdqa {{[-0-9]+}}(%r{{[sb]}}p), %xmm0 # 16-byte Reload
; CHECK-NEXT:    vpextrw $0, %xmm0, %r14d
; CHECK-NEXT:    vpermilpd $1, (%rsp), %xmm0 # 16-byte Folded Reload
; CHECK-NEXT:    # xmm0 = mem[1,0]
; CHECK-NEXT:    callq __truncsfbf2@PLT
; CHECK-NEXT:    vpextrw $0, %xmm0, %eax
; CHECK-NEXT:    vmovdqa {{[-0-9]+}}(%r{{[sb]}}p), %xmm0 # 16-byte Reload
; CHECK-NEXT:    vpinsrw $1, %r14d, %xmm0, %xmm0
; CHECK-NEXT:    vpinsrw $2, %eax, %xmm0, %xmm0
; CHECK-NEXT:    vpinsrw $3, %ebp, %xmm0, %xmm0
; CHECK-NEXT:    vpinsrw $4, %ebx, %xmm0, %xmm0
; CHECK-NEXT:    vpinsrw $5, %ebx, %xmm0, %xmm0
; CHECK-NEXT:    vpinsrw $6, %ebx, %xmm0, %xmm0
; CHECK-NEXT:    vpinsrw $7, %ebx, %xmm0, %xmm0
; CHECK-NEXT:    addq $64, %rsp
; CHECK-NEXT:    popq %rbx
; CHECK-NEXT:    popq %r14
; CHECK-NEXT:    popq %rbp
; CHECK-NEXT:    retq
  %b = fptrunc <4 x float> %a to <4 x bfloat>
  ret <4 x bfloat> %b
}