half-constrained.ll
13.6 KB
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-apple-darwin | FileCheck %s --check-prefix=X32-NOF16C
; RUN: llc < %s -mtriple=i686-apple-darwin | FileCheck %s --check-prefix=X32-F16C
; RUN: llc < %s -mtriple=x86_64-apple-darwin | FileCheck %s --check-prefix=X64-NOF16C
; RUN: llc < %s -mtriple=x86_64-apple-darwin -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 {
; X32-NOF16C-LABEL: half_to_float:
; X32-NOF16C: ## %bb.0:
; X32-NOF16C-NEXT: subl $12, %esp
; X32-NOF16C-NEXT: .cfi_def_cfa_offset 16
; X32-NOF16C-NEXT: movzwl _a, %eax
; X32-NOF16C-NEXT: movl %eax, (%esp)
; X32-NOF16C-NEXT: calll ___extendhfsf2
; X32-NOF16C-NEXT: addl $12, %esp
; X32-NOF16C-NEXT: retl
;
; X32-F16C-LABEL: half_to_float:
; X32-F16C: ## %bb.0:
; X32-F16C-NEXT: subl $12, %esp
; X32-F16C-NEXT: .cfi_def_cfa_offset 16
; X32-F16C-NEXT: movzwl _a, %eax
; X32-F16C-NEXT: movl %eax, (%esp)
; X32-F16C-NEXT: calll ___extendhfsf2
; X32-F16C-NEXT: addl $12, %esp
; X32-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: movzwl {{.*}}(%rip), %edi
; X64-NOF16C-NEXT: callq ___extendhfsf2
; X64-NOF16C-NEXT: popq %rax
; X64-NOF16C-NEXT: retq
;
; X64-F16C-LABEL: half_to_float:
; X64-F16C: ## %bb.0:
; X64-F16C-NEXT: movzwl {{.*}}(%rip), %eax
; X64-F16C-NEXT: vmovd %eax, %xmm0
; X64-F16C-NEXT: vcvtph2ps %xmm0, %xmm0
; X64-F16C-NEXT: retq
%1 = load half, half* @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 {
; X32-NOF16C-LABEL: half_to_double:
; X32-NOF16C: ## %bb.0:
; X32-NOF16C-NEXT: subl $12, %esp
; X32-NOF16C-NEXT: .cfi_def_cfa_offset 16
; X32-NOF16C-NEXT: movzwl _a, %eax
; X32-NOF16C-NEXT: movl %eax, (%esp)
; X32-NOF16C-NEXT: calll ___extendhfsf2
; X32-NOF16C-NEXT: addl $12, %esp
; X32-NOF16C-NEXT: retl
;
; X32-F16C-LABEL: half_to_double:
; X32-F16C: ## %bb.0:
; X32-F16C-NEXT: subl $12, %esp
; X32-F16C-NEXT: .cfi_def_cfa_offset 16
; X32-F16C-NEXT: movzwl _a, %eax
; X32-F16C-NEXT: movl %eax, (%esp)
; X32-F16C-NEXT: calll ___extendhfsf2
; X32-F16C-NEXT: addl $12, %esp
; X32-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: movzwl {{.*}}(%rip), %edi
; X64-NOF16C-NEXT: callq ___extendhfsf2
; X64-NOF16C-NEXT: cvtss2sd %xmm0, %xmm0
; X64-NOF16C-NEXT: popq %rax
; X64-NOF16C-NEXT: retq
;
; X64-F16C-LABEL: half_to_double:
; X64-F16C: ## %bb.0:
; X64-F16C-NEXT: movzwl {{.*}}(%rip), %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, half* @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 {
; X32-NOF16C-LABEL: half_to_fp80:
; X32-NOF16C: ## %bb.0:
; X32-NOF16C-NEXT: subl $12, %esp
; X32-NOF16C-NEXT: .cfi_def_cfa_offset 16
; X32-NOF16C-NEXT: movzwl _a, %eax
; X32-NOF16C-NEXT: movl %eax, (%esp)
; X32-NOF16C-NEXT: calll ___extendhfsf2
; X32-NOF16C-NEXT: addl $12, %esp
; X32-NOF16C-NEXT: retl
;
; X32-F16C-LABEL: half_to_fp80:
; X32-F16C: ## %bb.0:
; X32-F16C-NEXT: subl $12, %esp
; X32-F16C-NEXT: .cfi_def_cfa_offset 16
; X32-F16C-NEXT: movzwl _a, %eax
; X32-F16C-NEXT: movl %eax, (%esp)
; X32-F16C-NEXT: calll ___extendhfsf2
; X32-F16C-NEXT: addl $12, %esp
; X32-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: movzwl {{.*}}(%rip), %edi
; X64-NOF16C-NEXT: callq ___extendhfsf2
; X64-NOF16C-NEXT: movss %xmm0, {{[0-9]+}}(%rsp)
; X64-NOF16C-NEXT: flds {{[0-9]+}}(%rsp)
; X64-NOF16C-NEXT: wait
; X64-NOF16C-NEXT: popq %rax
; X64-NOF16C-NEXT: retq
;
; X64-F16C-LABEL: half_to_fp80:
; X64-F16C: ## %bb.0:
; X64-F16C-NEXT: movzwl {{.*}}(%rip), %eax
; X64-F16C-NEXT: vmovd %eax, %xmm0
; X64-F16C-NEXT: vcvtph2ps %xmm0, %xmm0
; X64-F16C-NEXT: vmovss %xmm0, -{{[0-9]+}}(%rsp)
; X64-F16C-NEXT: flds -{{[0-9]+}}(%rsp)
; X64-F16C-NEXT: wait
; X64-F16C-NEXT: retq
%1 = load half, half* @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 {
; X32-NOF16C-LABEL: float_to_half:
; X32-NOF16C: ## %bb.0:
; X32-NOF16C-NEXT: subl $12, %esp
; X32-NOF16C-NEXT: .cfi_def_cfa_offset 16
; X32-NOF16C-NEXT: flds {{[0-9]+}}(%esp)
; X32-NOF16C-NEXT: fstps (%esp)
; X32-NOF16C-NEXT: wait
; X32-NOF16C-NEXT: calll ___truncsfhf2
; X32-NOF16C-NEXT: movw %ax, _a
; X32-NOF16C-NEXT: addl $12, %esp
; X32-NOF16C-NEXT: retl
;
; X32-F16C-LABEL: float_to_half:
; X32-F16C: ## %bb.0:
; X32-F16C-NEXT: subl $12, %esp
; X32-F16C-NEXT: .cfi_def_cfa_offset 16
; X32-F16C-NEXT: flds {{[0-9]+}}(%esp)
; X32-F16C-NEXT: fstps (%esp)
; X32-F16C-NEXT: wait
; X32-F16C-NEXT: calll ___truncsfhf2
; X32-F16C-NEXT: movw %ax, _a
; X32-F16C-NEXT: addl $12, %esp
; X32-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
; X64-NOF16C-NEXT: movw %ax, {{.*}}(%rip)
; X64-NOF16C-NEXT: popq %rax
; 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: vpextrw $0, %xmm0, {{.*}}(%rip)
; 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, half* @a, align 2
ret void
}
define void @double_to_half(double %0) strictfp {
; X32-NOF16C-LABEL: double_to_half:
; X32-NOF16C: ## %bb.0:
; X32-NOF16C-NEXT: subl $12, %esp
; X32-NOF16C-NEXT: .cfi_def_cfa_offset 16
; X32-NOF16C-NEXT: fldl {{[0-9]+}}(%esp)
; X32-NOF16C-NEXT: fstpl (%esp)
; X32-NOF16C-NEXT: wait
; X32-NOF16C-NEXT: calll ___truncdfhf2
; X32-NOF16C-NEXT: movw %ax, _a
; X32-NOF16C-NEXT: addl $12, %esp
; X32-NOF16C-NEXT: retl
;
; X32-F16C-LABEL: double_to_half:
; X32-F16C: ## %bb.0:
; X32-F16C-NEXT: subl $12, %esp
; X32-F16C-NEXT: .cfi_def_cfa_offset 16
; X32-F16C-NEXT: fldl {{[0-9]+}}(%esp)
; X32-F16C-NEXT: fstpl (%esp)
; X32-F16C-NEXT: wait
; X32-F16C-NEXT: calll ___truncdfhf2
; X32-F16C-NEXT: movw %ax, _a
; X32-F16C-NEXT: addl $12, %esp
; X32-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
; X64-NOF16C-NEXT: movw %ax, {{.*}}(%rip)
; X64-NOF16C-NEXT: popq %rax
; 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
; X64-F16C-NEXT: movw %ax, {{.*}}(%rip)
; X64-F16C-NEXT: popq %rax
; 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, half* @a, align 2
ret void
}
define void @fp80_to_half(x86_fp80 %0) strictfp {
; X32-NOF16C-LABEL: fp80_to_half:
; X32-NOF16C: ## %bb.0:
; X32-NOF16C-NEXT: subl $28, %esp
; X32-NOF16C-NEXT: .cfi_def_cfa_offset 32
; X32-NOF16C-NEXT: fldt {{[0-9]+}}(%esp)
; X32-NOF16C-NEXT: fstpt (%esp)
; X32-NOF16C-NEXT: wait
; X32-NOF16C-NEXT: calll ___truncxfhf2
; X32-NOF16C-NEXT: movw %ax, _a
; X32-NOF16C-NEXT: addl $28, %esp
; X32-NOF16C-NEXT: retl
;
; X32-F16C-LABEL: fp80_to_half:
; X32-F16C: ## %bb.0:
; X32-F16C-NEXT: subl $28, %esp
; X32-F16C-NEXT: .cfi_def_cfa_offset 32
; X32-F16C-NEXT: fldt {{[0-9]+}}(%esp)
; X32-F16C-NEXT: fstpt (%esp)
; X32-F16C-NEXT: wait
; X32-F16C-NEXT: calll ___truncxfhf2
; X32-F16C-NEXT: movw %ax, _a
; X32-F16C-NEXT: addl $28, %esp
; X32-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
; X64-NOF16C-NEXT: movw %ax, {{.*}}(%rip)
; X64-NOF16C-NEXT: addq $24, %rsp
; 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
; X64-F16C-NEXT: movw %ax, {{.*}}(%rip)
; X64-F16C-NEXT: addq $24, %rsp
; 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, half* @a, align 2
ret void
}
define void @add() strictfp {
; X32-NOF16C-LABEL: add:
; X32-NOF16C: ## %bb.0:
; X32-NOF16C-NEXT: subl $12, %esp
; X32-NOF16C-NEXT: .cfi_def_cfa_offset 16
; X32-NOF16C-NEXT: movzwl _a, %eax
; X32-NOF16C-NEXT: movl %eax, (%esp)
; X32-NOF16C-NEXT: calll ___extendhfsf2
; X32-NOF16C-NEXT: fstps {{[-0-9]+}}(%e{{[sb]}}p) ## 4-byte Folded Spill
; X32-NOF16C-NEXT: wait
; X32-NOF16C-NEXT: movzwl _b, %eax
; X32-NOF16C-NEXT: movl %eax, (%esp)
; X32-NOF16C-NEXT: calll ___extendhfsf2
; X32-NOF16C-NEXT: flds {{[-0-9]+}}(%e{{[sb]}}p) ## 4-byte Folded Reload
; X32-NOF16C-NEXT: faddp %st, %st(1)
; X32-NOF16C-NEXT: fstps (%esp)
; X32-NOF16C-NEXT: wait
; X32-NOF16C-NEXT: calll ___truncsfhf2
; X32-NOF16C-NEXT: movw %ax, _c
; X32-NOF16C-NEXT: addl $12, %esp
; X32-NOF16C-NEXT: retl
;
; X32-F16C-LABEL: add:
; X32-F16C: ## %bb.0:
; X32-F16C-NEXT: subl $12, %esp
; X32-F16C-NEXT: .cfi_def_cfa_offset 16
; X32-F16C-NEXT: movzwl _a, %eax
; X32-F16C-NEXT: movl %eax, (%esp)
; X32-F16C-NEXT: calll ___extendhfsf2
; X32-F16C-NEXT: fstps {{[-0-9]+}}(%e{{[sb]}}p) ## 4-byte Folded Spill
; X32-F16C-NEXT: wait
; X32-F16C-NEXT: movzwl _b, %eax
; X32-F16C-NEXT: movl %eax, (%esp)
; X32-F16C-NEXT: calll ___extendhfsf2
; X32-F16C-NEXT: flds {{[-0-9]+}}(%e{{[sb]}}p) ## 4-byte Folded Reload
; X32-F16C-NEXT: faddp %st, %st(1)
; X32-F16C-NEXT: fstps (%esp)
; X32-F16C-NEXT: wait
; X32-F16C-NEXT: calll ___truncsfhf2
; X32-F16C-NEXT: movw %ax, _c
; X32-F16C-NEXT: addl $12, %esp
; X32-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: movzwl {{.*}}(%rip), %edi
; X64-NOF16C-NEXT: callq ___extendhfsf2
; X64-NOF16C-NEXT: movss %xmm0, {{[-0-9]+}}(%r{{[sb]}}p) ## 4-byte Spill
; X64-NOF16C-NEXT: movzwl {{.*}}(%rip), %edi
; X64-NOF16C-NEXT: callq ___extendhfsf2
; X64-NOF16C-NEXT: addss {{[-0-9]+}}(%r{{[sb]}}p), %xmm0 ## 4-byte Folded Reload
; X64-NOF16C-NEXT: callq ___truncsfhf2
; X64-NOF16C-NEXT: movw %ax, {{.*}}(%rip)
; X64-NOF16C-NEXT: popq %rax
; X64-NOF16C-NEXT: retq
;
; X64-F16C-LABEL: add:
; X64-F16C: ## %bb.0:
; X64-F16C-NEXT: movzwl {{.*}}(%rip), %eax
; X64-F16C-NEXT: vmovd %eax, %xmm0
; X64-F16C-NEXT: vcvtph2ps %xmm0, %xmm0
; X64-F16C-NEXT: movzwl {{.*}}(%rip), %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: vpextrw $0, %xmm0, {{.*}}(%rip)
; X64-F16C-NEXT: retq
%1 = load half, half* @a, align 2
%2 = tail call float @llvm.experimental.constrained.fpext.f32.f16(half %1, metadata !"fpexcept.strict") #0
%3 = load half, half* @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, half* @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 }