|  | ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py | 
|  | ; RUN: llc < %s -mtriple=i686-linux-gnu | FileCheck %s --check-prefix=X86-NOF16C | 
|  | ; RUN: llc < %s -mtriple=i686-linux-gnu -mattr=f16c | FileCheck %s --check-prefix=X86-F16C | 
|  | ; RUN: llc < %s -mtriple=x86_64-linux-gnu | FileCheck %s --check-prefix=X64-NOF16C | 
|  | ; RUN: llc < %s -mtriple=x86_64-linux-gnu -mattr=f16c | FileCheck %s --check-prefix=X64-F16C | 
|  |  | 
|  | @a = global half 0xH0000, align 2 | 
|  | @b = global half 0xH0000, align 2 | 
|  | @c = global half 0xH0000, align 2 | 
|  |  | 
|  | define float @half_to_float() strictfp { | 
|  | ; X86-NOF16C-LABEL: half_to_float: | 
|  | ; X86-NOF16C:       # %bb.0: | 
|  | ; X86-NOF16C-NEXT:    subl $12, %esp | 
|  | ; X86-NOF16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X86-NOF16C-NEXT:    movzwl a, %eax | 
|  | ; X86-NOF16C-NEXT:    movl %eax, (%esp) | 
|  | ; X86-NOF16C-NEXT:    calll __gnu_h2f_ieee | 
|  | ; X86-NOF16C-NEXT:    addl $12, %esp | 
|  | ; X86-NOF16C-NEXT:    .cfi_def_cfa_offset 4 | 
|  | ; X86-NOF16C-NEXT:    retl | 
|  | ; | 
|  | ; X86-F16C-LABEL: half_to_float: | 
|  | ; X86-F16C:       # %bb.0: | 
|  | ; X86-F16C-NEXT:    pushl %eax | 
|  | ; X86-F16C-NEXT:    .cfi_def_cfa_offset 8 | 
|  | ; X86-F16C-NEXT:    movzwl a, %eax | 
|  | ; X86-F16C-NEXT:    vmovd %eax, %xmm0 | 
|  | ; X86-F16C-NEXT:    vcvtph2ps %xmm0, %xmm0 | 
|  | ; X86-F16C-NEXT:    vmovss %xmm0, (%esp) | 
|  | ; X86-F16C-NEXT:    flds (%esp) | 
|  | ; X86-F16C-NEXT:    wait | 
|  | ; X86-F16C-NEXT:    popl %eax | 
|  | ; X86-F16C-NEXT:    .cfi_def_cfa_offset 4 | 
|  | ; X86-F16C-NEXT:    retl | 
|  | ; | 
|  | ; X64-NOF16C-LABEL: half_to_float: | 
|  | ; X64-NOF16C:       # %bb.0: | 
|  | ; X64-NOF16C-NEXT:    pushq %rax | 
|  | ; X64-NOF16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X64-NOF16C-NEXT:    movq a@GOTPCREL(%rip), %rax | 
|  | ; X64-NOF16C-NEXT:    pinsrw $0, (%rax), %xmm0 | 
|  | ; X64-NOF16C-NEXT:    callq __extendhfsf2@PLT | 
|  | ; X64-NOF16C-NEXT:    popq %rax | 
|  | ; X64-NOF16C-NEXT:    .cfi_def_cfa_offset 8 | 
|  | ; X64-NOF16C-NEXT:    retq | 
|  | ; | 
|  | ; X64-F16C-LABEL: half_to_float: | 
|  | ; X64-F16C:       # %bb.0: | 
|  | ; X64-F16C-NEXT:    movq a@GOTPCREL(%rip), %rax | 
|  | ; X64-F16C-NEXT:    movzwl (%rax), %eax | 
|  | ; X64-F16C-NEXT:    vmovd %eax, %xmm0 | 
|  | ; X64-F16C-NEXT:    vcvtph2ps %xmm0, %xmm0 | 
|  | ; X64-F16C-NEXT:    retq | 
|  | %1 = load half, ptr @a, align 2 | 
|  | %2 = tail call float @llvm.experimental.constrained.fpext.f32.f16(half %1, metadata !"fpexcept.strict") #0 | 
|  | ret float %2 | 
|  | } | 
|  |  | 
|  | define double @half_to_double() strictfp { | 
|  | ; X86-NOF16C-LABEL: half_to_double: | 
|  | ; X86-NOF16C:       # %bb.0: | 
|  | ; X86-NOF16C-NEXT:    subl $12, %esp | 
|  | ; X86-NOF16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X86-NOF16C-NEXT:    movzwl a, %eax | 
|  | ; X86-NOF16C-NEXT:    movl %eax, (%esp) | 
|  | ; X86-NOF16C-NEXT:    calll __gnu_h2f_ieee | 
|  | ; X86-NOF16C-NEXT:    addl $12, %esp | 
|  | ; X86-NOF16C-NEXT:    .cfi_def_cfa_offset 4 | 
|  | ; X86-NOF16C-NEXT:    retl | 
|  | ; | 
|  | ; X86-F16C-LABEL: half_to_double: | 
|  | ; X86-F16C:       # %bb.0: | 
|  | ; X86-F16C-NEXT:    subl $12, %esp | 
|  | ; X86-F16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X86-F16C-NEXT:    movzwl a, %eax | 
|  | ; X86-F16C-NEXT:    vmovd %eax, %xmm0 | 
|  | ; X86-F16C-NEXT:    vcvtph2ps %xmm0, %xmm0 | 
|  | ; X86-F16C-NEXT:    vcvtss2sd %xmm0, %xmm0, %xmm0 | 
|  | ; X86-F16C-NEXT:    vmovsd %xmm0, (%esp) | 
|  | ; X86-F16C-NEXT:    fldl (%esp) | 
|  | ; X86-F16C-NEXT:    wait | 
|  | ; X86-F16C-NEXT:    addl $12, %esp | 
|  | ; X86-F16C-NEXT:    .cfi_def_cfa_offset 4 | 
|  | ; X86-F16C-NEXT:    retl | 
|  | ; | 
|  | ; X64-NOF16C-LABEL: half_to_double: | 
|  | ; X64-NOF16C:       # %bb.0: | 
|  | ; X64-NOF16C-NEXT:    pushq %rax | 
|  | ; X64-NOF16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X64-NOF16C-NEXT:    movq a@GOTPCREL(%rip), %rax | 
|  | ; X64-NOF16C-NEXT:    pinsrw $0, (%rax), %xmm0 | 
|  | ; X64-NOF16C-NEXT:    callq __extendhfsf2@PLT | 
|  | ; X64-NOF16C-NEXT:    cvtss2sd %xmm0, %xmm0 | 
|  | ; X64-NOF16C-NEXT:    popq %rax | 
|  | ; X64-NOF16C-NEXT:    .cfi_def_cfa_offset 8 | 
|  | ; X64-NOF16C-NEXT:    retq | 
|  | ; | 
|  | ; X64-F16C-LABEL: half_to_double: | 
|  | ; X64-F16C:       # %bb.0: | 
|  | ; X64-F16C-NEXT:    movq a@GOTPCREL(%rip), %rax | 
|  | ; X64-F16C-NEXT:    movzwl (%rax), %eax | 
|  | ; X64-F16C-NEXT:    vmovd %eax, %xmm0 | 
|  | ; X64-F16C-NEXT:    vcvtph2ps %xmm0, %xmm0 | 
|  | ; X64-F16C-NEXT:    vcvtss2sd %xmm0, %xmm0, %xmm0 | 
|  | ; X64-F16C-NEXT:    retq | 
|  | %1 = load half, ptr @a, align 2 | 
|  | %2 = tail call double @llvm.experimental.constrained.fpext.f64.f16(half %1, metadata !"fpexcept.strict") #0 | 
|  | ret double %2 | 
|  | } | 
|  |  | 
|  | define x86_fp80 @half_to_fp80() strictfp { | 
|  | ; X86-NOF16C-LABEL: half_to_fp80: | 
|  | ; X86-NOF16C:       # %bb.0: | 
|  | ; X86-NOF16C-NEXT:    subl $12, %esp | 
|  | ; X86-NOF16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X86-NOF16C-NEXT:    movzwl a, %eax | 
|  | ; X86-NOF16C-NEXT:    movl %eax, (%esp) | 
|  | ; X86-NOF16C-NEXT:    calll __gnu_h2f_ieee | 
|  | ; X86-NOF16C-NEXT:    addl $12, %esp | 
|  | ; X86-NOF16C-NEXT:    .cfi_def_cfa_offset 4 | 
|  | ; X86-NOF16C-NEXT:    retl | 
|  | ; | 
|  | ; X86-F16C-LABEL: half_to_fp80: | 
|  | ; X86-F16C:       # %bb.0: | 
|  | ; X86-F16C-NEXT:    subl $12, %esp | 
|  | ; X86-F16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X86-F16C-NEXT:    vpinsrw $0, a, %xmm0, %xmm0 | 
|  | ; X86-F16C-NEXT:    vpextrw $0, %xmm0, (%esp) | 
|  | ; X86-F16C-NEXT:    calll __extendhfxf2 | 
|  | ; X86-F16C-NEXT:    addl $12, %esp | 
|  | ; X86-F16C-NEXT:    .cfi_def_cfa_offset 4 | 
|  | ; X86-F16C-NEXT:    retl | 
|  | ; | 
|  | ; X64-NOF16C-LABEL: half_to_fp80: | 
|  | ; X64-NOF16C:       # %bb.0: | 
|  | ; X64-NOF16C-NEXT:    pushq %rax | 
|  | ; X64-NOF16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X64-NOF16C-NEXT:    movq a@GOTPCREL(%rip), %rax | 
|  | ; X64-NOF16C-NEXT:    pinsrw $0, (%rax), %xmm0 | 
|  | ; X64-NOF16C-NEXT:    callq __extendhfxf2@PLT | 
|  | ; X64-NOF16C-NEXT:    popq %rax | 
|  | ; X64-NOF16C-NEXT:    .cfi_def_cfa_offset 8 | 
|  | ; X64-NOF16C-NEXT:    retq | 
|  | ; | 
|  | ; X64-F16C-LABEL: half_to_fp80: | 
|  | ; X64-F16C:       # %bb.0: | 
|  | ; X64-F16C-NEXT:    pushq %rax | 
|  | ; X64-F16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X64-F16C-NEXT:    movq a@GOTPCREL(%rip), %rax | 
|  | ; X64-F16C-NEXT:    vpinsrw $0, (%rax), %xmm0, %xmm0 | 
|  | ; X64-F16C-NEXT:    callq __extendhfxf2@PLT | 
|  | ; X64-F16C-NEXT:    popq %rax | 
|  | ; X64-F16C-NEXT:    .cfi_def_cfa_offset 8 | 
|  | ; X64-F16C-NEXT:    retq | 
|  | %1 = load half, ptr @a, align 2 | 
|  | %2 = tail call x86_fp80 @llvm.experimental.constrained.fpext.f80.f16(half %1, metadata !"fpexcept.strict") #0 | 
|  | ret x86_fp80 %2 | 
|  | } | 
|  |  | 
|  | define void @float_to_half(float %0) strictfp { | 
|  | ; X86-NOF16C-LABEL: float_to_half: | 
|  | ; X86-NOF16C:       # %bb.0: | 
|  | ; X86-NOF16C-NEXT:    subl $12, %esp | 
|  | ; X86-NOF16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X86-NOF16C-NEXT:    flds {{[0-9]+}}(%esp) | 
|  | ; X86-NOF16C-NEXT:    fstps (%esp) | 
|  | ; X86-NOF16C-NEXT:    wait | 
|  | ; X86-NOF16C-NEXT:    calll __gnu_f2h_ieee | 
|  | ; X86-NOF16C-NEXT:    movw %ax, a | 
|  | ; X86-NOF16C-NEXT:    addl $12, %esp | 
|  | ; X86-NOF16C-NEXT:    .cfi_def_cfa_offset 4 | 
|  | ; X86-NOF16C-NEXT:    retl | 
|  | ; | 
|  | ; X86-F16C-LABEL: float_to_half: | 
|  | ; X86-F16C:       # %bb.0: | 
|  | ; X86-F16C-NEXT:    vmovss {{.*#+}} xmm0 = mem[0],zero,zero,zero | 
|  | ; X86-F16C-NEXT:    vcvtps2ph $4, %xmm0, %xmm0 | 
|  | ; X86-F16C-NEXT:    vmovd %xmm0, %eax | 
|  | ; X86-F16C-NEXT:    movw %ax, a | 
|  | ; X86-F16C-NEXT:    retl | 
|  | ; | 
|  | ; X64-NOF16C-LABEL: float_to_half: | 
|  | ; X64-NOF16C:       # %bb.0: | 
|  | ; X64-NOF16C-NEXT:    pushq %rax | 
|  | ; X64-NOF16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X64-NOF16C-NEXT:    callq __truncsfhf2@PLT | 
|  | ; X64-NOF16C-NEXT:    pextrw $0, %xmm0, %eax | 
|  | ; X64-NOF16C-NEXT:    movq a@GOTPCREL(%rip), %rcx | 
|  | ; X64-NOF16C-NEXT:    movw %ax, (%rcx) | 
|  | ; X64-NOF16C-NEXT:    popq %rax | 
|  | ; X64-NOF16C-NEXT:    .cfi_def_cfa_offset 8 | 
|  | ; X64-NOF16C-NEXT:    retq | 
|  | ; | 
|  | ; X64-F16C-LABEL: float_to_half: | 
|  | ; X64-F16C:       # %bb.0: | 
|  | ; X64-F16C-NEXT:    vxorps %xmm1, %xmm1, %xmm1 | 
|  | ; X64-F16C-NEXT:    vblendps {{.*#+}} xmm0 = xmm0[0],xmm1[1,2,3] | 
|  | ; X64-F16C-NEXT:    vcvtps2ph $4, %xmm0, %xmm0 | 
|  | ; X64-F16C-NEXT:    vmovd %xmm0, %eax | 
|  | ; X64-F16C-NEXT:    movq a@GOTPCREL(%rip), %rcx | 
|  | ; X64-F16C-NEXT:    movw %ax, (%rcx) | 
|  | ; X64-F16C-NEXT:    retq | 
|  | %2 = tail call half @llvm.experimental.constrained.fptrunc.f16.f32(float %0, metadata !"round.tonearest", metadata !"fpexcept.strict") #0 | 
|  | store half %2, ptr @a, align 2 | 
|  | ret void | 
|  | } | 
|  |  | 
|  | define void @double_to_half(double %0) strictfp { | 
|  | ; X86-NOF16C-LABEL: double_to_half: | 
|  | ; X86-NOF16C:       # %bb.0: | 
|  | ; X86-NOF16C-NEXT:    subl $12, %esp | 
|  | ; X86-NOF16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X86-NOF16C-NEXT:    fldl {{[0-9]+}}(%esp) | 
|  | ; X86-NOF16C-NEXT:    fstpl (%esp) | 
|  | ; X86-NOF16C-NEXT:    wait | 
|  | ; X86-NOF16C-NEXT:    calll __truncdfhf2 | 
|  | ; X86-NOF16C-NEXT:    movw %ax, a | 
|  | ; X86-NOF16C-NEXT:    addl $12, %esp | 
|  | ; X86-NOF16C-NEXT:    .cfi_def_cfa_offset 4 | 
|  | ; X86-NOF16C-NEXT:    retl | 
|  | ; | 
|  | ; X86-F16C-LABEL: double_to_half: | 
|  | ; X86-F16C:       # %bb.0: | 
|  | ; X86-F16C-NEXT:    subl $12, %esp | 
|  | ; X86-F16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X86-F16C-NEXT:    vmovq {{.*#+}} xmm0 = mem[0],zero | 
|  | ; X86-F16C-NEXT:    vmovq %xmm0, (%esp) | 
|  | ; X86-F16C-NEXT:    calll __truncdfhf2 | 
|  | ; X86-F16C-NEXT:    vpextrw $0, %xmm0, a | 
|  | ; X86-F16C-NEXT:    addl $12, %esp | 
|  | ; X86-F16C-NEXT:    .cfi_def_cfa_offset 4 | 
|  | ; X86-F16C-NEXT:    retl | 
|  | ; | 
|  | ; X64-NOF16C-LABEL: double_to_half: | 
|  | ; X64-NOF16C:       # %bb.0: | 
|  | ; X64-NOF16C-NEXT:    pushq %rax | 
|  | ; X64-NOF16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X64-NOF16C-NEXT:    callq __truncdfhf2@PLT | 
|  | ; X64-NOF16C-NEXT:    pextrw $0, %xmm0, %eax | 
|  | ; X64-NOF16C-NEXT:    movq a@GOTPCREL(%rip), %rcx | 
|  | ; X64-NOF16C-NEXT:    movw %ax, (%rcx) | 
|  | ; X64-NOF16C-NEXT:    popq %rax | 
|  | ; X64-NOF16C-NEXT:    .cfi_def_cfa_offset 8 | 
|  | ; X64-NOF16C-NEXT:    retq | 
|  | ; | 
|  | ; X64-F16C-LABEL: double_to_half: | 
|  | ; X64-F16C:       # %bb.0: | 
|  | ; X64-F16C-NEXT:    pushq %rax | 
|  | ; X64-F16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X64-F16C-NEXT:    callq __truncdfhf2@PLT | 
|  | ; X64-F16C-NEXT:    movq a@GOTPCREL(%rip), %rax | 
|  | ; X64-F16C-NEXT:    vpextrw $0, %xmm0, (%rax) | 
|  | ; X64-F16C-NEXT:    popq %rax | 
|  | ; X64-F16C-NEXT:    .cfi_def_cfa_offset 8 | 
|  | ; X64-F16C-NEXT:    retq | 
|  | %2 = tail call half @llvm.experimental.constrained.fptrunc.f16.f64(double %0, metadata !"round.tonearest", metadata !"fpexcept.strict") #0 | 
|  | store half %2, ptr @a, align 2 | 
|  | ret void | 
|  | } | 
|  |  | 
|  | define void @fp80_to_half(x86_fp80 %0) strictfp { | 
|  | ; X86-NOF16C-LABEL: fp80_to_half: | 
|  | ; X86-NOF16C:       # %bb.0: | 
|  | ; X86-NOF16C-NEXT:    subl $12, %esp | 
|  | ; X86-NOF16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X86-NOF16C-NEXT:    fldt {{[0-9]+}}(%esp) | 
|  | ; X86-NOF16C-NEXT:    fstpt (%esp) | 
|  | ; X86-NOF16C-NEXT:    wait | 
|  | ; X86-NOF16C-NEXT:    calll __truncxfhf2 | 
|  | ; X86-NOF16C-NEXT:    movw %ax, a | 
|  | ; X86-NOF16C-NEXT:    addl $12, %esp | 
|  | ; X86-NOF16C-NEXT:    .cfi_def_cfa_offset 4 | 
|  | ; X86-NOF16C-NEXT:    retl | 
|  | ; | 
|  | ; X86-F16C-LABEL: fp80_to_half: | 
|  | ; X86-F16C:       # %bb.0: | 
|  | ; X86-F16C-NEXT:    subl $12, %esp | 
|  | ; X86-F16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X86-F16C-NEXT:    fldt {{[0-9]+}}(%esp) | 
|  | ; X86-F16C-NEXT:    fstpt (%esp) | 
|  | ; X86-F16C-NEXT:    wait | 
|  | ; X86-F16C-NEXT:    calll __truncxfhf2 | 
|  | ; X86-F16C-NEXT:    vpextrw $0, %xmm0, a | 
|  | ; X86-F16C-NEXT:    addl $12, %esp | 
|  | ; X86-F16C-NEXT:    .cfi_def_cfa_offset 4 | 
|  | ; X86-F16C-NEXT:    retl | 
|  | ; | 
|  | ; X64-NOF16C-LABEL: fp80_to_half: | 
|  | ; X64-NOF16C:       # %bb.0: | 
|  | ; X64-NOF16C-NEXT:    subq $24, %rsp | 
|  | ; X64-NOF16C-NEXT:    .cfi_def_cfa_offset 32 | 
|  | ; X64-NOF16C-NEXT:    fldt {{[0-9]+}}(%rsp) | 
|  | ; X64-NOF16C-NEXT:    fstpt (%rsp) | 
|  | ; X64-NOF16C-NEXT:    wait | 
|  | ; X64-NOF16C-NEXT:    callq __truncxfhf2@PLT | 
|  | ; X64-NOF16C-NEXT:    pextrw $0, %xmm0, %eax | 
|  | ; X64-NOF16C-NEXT:    movq a@GOTPCREL(%rip), %rcx | 
|  | ; X64-NOF16C-NEXT:    movw %ax, (%rcx) | 
|  | ; X64-NOF16C-NEXT:    addq $24, %rsp | 
|  | ; X64-NOF16C-NEXT:    .cfi_def_cfa_offset 8 | 
|  | ; X64-NOF16C-NEXT:    retq | 
|  | ; | 
|  | ; X64-F16C-LABEL: fp80_to_half: | 
|  | ; X64-F16C:       # %bb.0: | 
|  | ; X64-F16C-NEXT:    subq $24, %rsp | 
|  | ; X64-F16C-NEXT:    .cfi_def_cfa_offset 32 | 
|  | ; X64-F16C-NEXT:    fldt {{[0-9]+}}(%rsp) | 
|  | ; X64-F16C-NEXT:    fstpt (%rsp) | 
|  | ; X64-F16C-NEXT:    wait | 
|  | ; X64-F16C-NEXT:    callq __truncxfhf2@PLT | 
|  | ; X64-F16C-NEXT:    movq a@GOTPCREL(%rip), %rax | 
|  | ; X64-F16C-NEXT:    vpextrw $0, %xmm0, (%rax) | 
|  | ; X64-F16C-NEXT:    addq $24, %rsp | 
|  | ; X64-F16C-NEXT:    .cfi_def_cfa_offset 8 | 
|  | ; X64-F16C-NEXT:    retq | 
|  | %2 = tail call half @llvm.experimental.constrained.fptrunc.f16.f80(x86_fp80 %0, metadata !"round.tonearest", metadata !"fpexcept.strict") #0 | 
|  | store half %2, ptr @a, align 2 | 
|  | ret void | 
|  | } | 
|  |  | 
|  | define void @add() strictfp { | 
|  | ; X86-NOF16C-LABEL: add: | 
|  | ; X86-NOF16C:       # %bb.0: | 
|  | ; X86-NOF16C-NEXT:    subl $12, %esp | 
|  | ; X86-NOF16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X86-NOF16C-NEXT:    movzwl a, %eax | 
|  | ; X86-NOF16C-NEXT:    movl %eax, (%esp) | 
|  | ; X86-NOF16C-NEXT:    calll __gnu_h2f_ieee | 
|  | ; X86-NOF16C-NEXT:    fstps {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Folded Spill | 
|  | ; X86-NOF16C-NEXT:    wait | 
|  | ; X86-NOF16C-NEXT:    movzwl b, %eax | 
|  | ; X86-NOF16C-NEXT:    movl %eax, (%esp) | 
|  | ; X86-NOF16C-NEXT:    calll __gnu_h2f_ieee | 
|  | ; X86-NOF16C-NEXT:    flds {{[-0-9]+}}(%e{{[sb]}}p) # 4-byte Folded Reload | 
|  | ; X86-NOF16C-NEXT:    faddp %st, %st(1) | 
|  | ; X86-NOF16C-NEXT:    fstps (%esp) | 
|  | ; X86-NOF16C-NEXT:    wait | 
|  | ; X86-NOF16C-NEXT:    calll __gnu_f2h_ieee | 
|  | ; X86-NOF16C-NEXT:    movw %ax, c | 
|  | ; X86-NOF16C-NEXT:    addl $12, %esp | 
|  | ; X86-NOF16C-NEXT:    .cfi_def_cfa_offset 4 | 
|  | ; X86-NOF16C-NEXT:    retl | 
|  | ; | 
|  | ; X86-F16C-LABEL: add: | 
|  | ; X86-F16C:       # %bb.0: | 
|  | ; X86-F16C-NEXT:    movzwl a, %eax | 
|  | ; X86-F16C-NEXT:    vmovd %eax, %xmm0 | 
|  | ; X86-F16C-NEXT:    vcvtph2ps %xmm0, %xmm0 | 
|  | ; X86-F16C-NEXT:    movzwl b, %eax | 
|  | ; X86-F16C-NEXT:    vmovd %eax, %xmm1 | 
|  | ; X86-F16C-NEXT:    vcvtph2ps %xmm1, %xmm1 | 
|  | ; X86-F16C-NEXT:    vaddss %xmm1, %xmm0, %xmm0 | 
|  | ; X86-F16C-NEXT:    vxorps %xmm1, %xmm1, %xmm1 | 
|  | ; X86-F16C-NEXT:    vblendps {{.*#+}} xmm0 = xmm0[0],xmm1[1,2,3] | 
|  | ; X86-F16C-NEXT:    vcvtps2ph $4, %xmm0, %xmm0 | 
|  | ; X86-F16C-NEXT:    vmovd %xmm0, %eax | 
|  | ; X86-F16C-NEXT:    movw %ax, c | 
|  | ; X86-F16C-NEXT:    retl | 
|  | ; | 
|  | ; X64-NOF16C-LABEL: add: | 
|  | ; X64-NOF16C:       # %bb.0: | 
|  | ; X64-NOF16C-NEXT:    pushq %rax | 
|  | ; X64-NOF16C-NEXT:    .cfi_def_cfa_offset 16 | 
|  | ; X64-NOF16C-NEXT:    movq a@GOTPCREL(%rip), %rax | 
|  | ; X64-NOF16C-NEXT:    pinsrw $0, (%rax), %xmm0 | 
|  | ; X64-NOF16C-NEXT:    callq __extendhfsf2@PLT | 
|  | ; X64-NOF16C-NEXT:    movd %xmm0, {{[-0-9]+}}(%r{{[sb]}}p) # 4-byte Folded Spill | 
|  | ; X64-NOF16C-NEXT:    movq b@GOTPCREL(%rip), %rax | 
|  | ; X64-NOF16C-NEXT:    pinsrw $0, (%rax), %xmm0 | 
|  | ; X64-NOF16C-NEXT:    callq __extendhfsf2@PLT | 
|  | ; X64-NOF16C-NEXT:    addss {{[-0-9]+}}(%r{{[sb]}}p), %xmm0 # 4-byte Folded Reload | 
|  | ; X64-NOF16C-NEXT:    callq __truncsfhf2@PLT | 
|  | ; X64-NOF16C-NEXT:    pextrw $0, %xmm0, %eax | 
|  | ; X64-NOF16C-NEXT:    movq c@GOTPCREL(%rip), %rcx | 
|  | ; X64-NOF16C-NEXT:    movw %ax, (%rcx) | 
|  | ; X64-NOF16C-NEXT:    popq %rax | 
|  | ; X64-NOF16C-NEXT:    .cfi_def_cfa_offset 8 | 
|  | ; X64-NOF16C-NEXT:    retq | 
|  | ; | 
|  | ; X64-F16C-LABEL: add: | 
|  | ; X64-F16C:       # %bb.0: | 
|  | ; X64-F16C-NEXT:    movq a@GOTPCREL(%rip), %rax | 
|  | ; X64-F16C-NEXT:    movzwl (%rax), %eax | 
|  | ; X64-F16C-NEXT:    vmovd %eax, %xmm0 | 
|  | ; X64-F16C-NEXT:    vcvtph2ps %xmm0, %xmm0 | 
|  | ; X64-F16C-NEXT:    movq b@GOTPCREL(%rip), %rax | 
|  | ; X64-F16C-NEXT:    movzwl (%rax), %eax | 
|  | ; X64-F16C-NEXT:    vmovd %eax, %xmm1 | 
|  | ; X64-F16C-NEXT:    vcvtph2ps %xmm1, %xmm1 | 
|  | ; X64-F16C-NEXT:    vaddss %xmm1, %xmm0, %xmm0 | 
|  | ; X64-F16C-NEXT:    vxorps %xmm1, %xmm1, %xmm1 | 
|  | ; X64-F16C-NEXT:    vblendps {{.*#+}} xmm0 = xmm0[0],xmm1[1,2,3] | 
|  | ; X64-F16C-NEXT:    vcvtps2ph $4, %xmm0, %xmm0 | 
|  | ; X64-F16C-NEXT:    vmovd %xmm0, %eax | 
|  | ; X64-F16C-NEXT:    movq c@GOTPCREL(%rip), %rcx | 
|  | ; X64-F16C-NEXT:    movw %ax, (%rcx) | 
|  | ; X64-F16C-NEXT:    retq | 
|  | %1 = load half, ptr @a, align 2 | 
|  | %2 = tail call float @llvm.experimental.constrained.fpext.f32.f16(half %1, metadata !"fpexcept.strict") #0 | 
|  | %3 = load half, ptr @b, align 2 | 
|  | %4 = tail call float @llvm.experimental.constrained.fpext.f32.f16(half %3, metadata !"fpexcept.strict") #0 | 
|  | %5 = tail call float @llvm.experimental.constrained.fadd.f32(float %2, float %4, metadata !"round.tonearest", metadata !"fpexcept.strict") #0 | 
|  | %6 = tail call half @llvm.experimental.constrained.fptrunc.f16.f32(float %5, metadata !"round.tonearest", metadata !"fpexcept.strict") #0 | 
|  | store half %6, ptr @c, align 2 | 
|  | ret void | 
|  | } | 
|  |  | 
|  | declare float @llvm.experimental.constrained.fpext.f32.f16(half, metadata) | 
|  | declare double @llvm.experimental.constrained.fpext.f64.f16(half, metadata) | 
|  | declare x86_fp80 @llvm.experimental.constrained.fpext.f80.f16(half, metadata) | 
|  | declare float @llvm.experimental.constrained.fadd.f32(float, float, metadata, metadata) | 
|  | declare half @llvm.experimental.constrained.fptrunc.f16.f32(float, metadata, metadata) | 
|  | declare half @llvm.experimental.constrained.fptrunc.f16.f64(double, metadata, metadata) | 
|  | declare half @llvm.experimental.constrained.fptrunc.f16.f80(x86_fp80, metadata, metadata) | 
|  |  | 
|  | attributes #0 = { strictfp } | 
|  |  |