test/CodeGen/X86/half-fp80-darwin.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=x86_64-apple-macosx %s -o - | FileCheck %s --check-prefix=CHECK-SOFT
; RUN: llc -mtriple=x86_64-apple-macosx -mattr=+f16c %s -o - | FileCheck %s --check-prefix=CHECK-F16C

define void @extendhfxf(ptr %outptr, ptr %inptr) nounwind {
; CHECK-SOFT-LABEL: extendhfxf:
; CHECK-SOFT:       ## %bb.0:
; CHECK-SOFT-NEXT:    pushq %rbx
; CHECK-SOFT-NEXT:    subq $16, %rsp
; CHECK-SOFT-NEXT:    movq %rdi, %rbx
; CHECK-SOFT-NEXT:    movzwl (%rsi), %edi
; CHECK-SOFT-NEXT:    callq ___extendhfsf2
; CHECK-SOFT-NEXT:    movss %xmm0, {{[0-9]+}}(%rsp)
; CHECK-SOFT-NEXT:    flds {{[0-9]+}}(%rsp)
; CHECK-SOFT-NEXT:    fstpt (%rbx)
; CHECK-SOFT-NEXT:    addq $16, %rsp
; CHECK-SOFT-NEXT:    popq %rbx
; CHECK-SOFT-NEXT:    retq
;
; CHECK-F16C-LABEL: extendhfxf:
; CHECK-F16C:       ## %bb.0:
; CHECK-F16C-NEXT:    movzwl (%rsi), %eax
; CHECK-F16C-NEXT:    vmovd %eax, %xmm0
; CHECK-F16C-NEXT:    vcvtph2ps %xmm0, %xmm0
; CHECK-F16C-NEXT:    vmovss %xmm0, -{{[0-9]+}}(%rsp)
; CHECK-F16C-NEXT:    flds -{{[0-9]+}}(%rsp)
; CHECK-F16C-NEXT:    fstpt (%rdi)
; CHECK-F16C-NEXT:    retq
  %in = load half, ptr %inptr
  %fp80 = fpext half %in to x86_fp80
  store x86_fp80 %fp80, ptr %outptr
  ret void
}

; FIXME: We don't currently provide __truncxfhf2, but we can't lower this as
; successive fptruncs (like we do fpext) because of double rounding.
; We also don't currently soft-float this call, like we do e.g., __truncsfhf2:
; the latter long predates the fp16 parameter passing ABI, so can't change.
; If we ever add a __truncxfhf2, we're not bound by existing ABI.
define void @truncxfhf(ptr %outptr, ptr %inptr) nounwind {
; CHECK-SOFT-LABEL: truncxfhf:
; CHECK-SOFT:       ## %bb.0:
; CHECK-SOFT-NEXT:    pushq %rbx
; CHECK-SOFT-NEXT:    subq $16, %rsp
; CHECK-SOFT-NEXT:    movq %rdi, %rbx
; CHECK-SOFT-NEXT:    fldt (%rsi)
; CHECK-SOFT-NEXT:    fstpt (%rsp)
; CHECK-SOFT-NEXT:    callq ___truncxfhf2
; CHECK-SOFT-NEXT:    pextrw $0, %xmm0, %eax
; CHECK-SOFT-NEXT:    movw %ax, (%rbx)
; CHECK-SOFT-NEXT:    addq $16, %rsp
; CHECK-SOFT-NEXT:    popq %rbx
; CHECK-SOFT-NEXT:    retq
;
; CHECK-F16C-LABEL: truncxfhf:
; CHECK-F16C:       ## %bb.0:
; CHECK-F16C-NEXT:    pushq %rbx
; CHECK-F16C-NEXT:    subq $16, %rsp
; CHECK-F16C-NEXT:    movq %rdi, %rbx
; CHECK-F16C-NEXT:    fldt (%rsi)
; CHECK-F16C-NEXT:    fstpt (%rsp)
; CHECK-F16C-NEXT:    callq ___truncxfhf2
; CHECK-F16C-NEXT:    vpextrw $0, %xmm0, (%rbx)
; CHECK-F16C-NEXT:    addq $16, %rsp
; CHECK-F16C-NEXT:    popq %rbx
; CHECK-F16C-NEXT:    retq
  %in = load x86_fp80, ptr %inptr
  %half = fptrunc x86_fp80 %in to half
  store half %half, ptr %outptr
  ret void
}