llvm-project/llvm/test/CodeGen/X86/fminnum.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=sse2  < %s | FileCheck %s --check-prefix=CHECK --check-prefix=SSE
; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=avx  < %s | FileCheck %s --check-prefix=CHECK --check-prefix=AVX

declare float @fminf(float, float)
declare double @fmin(double, double)
declare x86_fp80 @fminl(x86_fp80, x86_fp80)
declare float @llvm.minnum.f32(float, float)
declare double @llvm.minnum.f64(double, double)
declare x86_fp80 @llvm.minnum.f80(x86_fp80, x86_fp80)

declare <2 x float> @llvm.minnum.v2f32(<2 x float>, <2 x float>)
declare <4 x float> @llvm.minnum.v4f32(<4 x float>, <4 x float>)
declare <2 x double> @llvm.minnum.v2f64(<2 x double>, <2 x double>)
declare <4 x double> @llvm.minnum.v4f64(<4 x double>, <4 x double>)
declare <8 x double> @llvm.minnum.v8f64(<8 x double>, <8 x double>)

; FIXME: As the vector tests show, the SSE run shouldn't need this many moves.

define float @test_fminf(float %x, float %y) {
; SSE-LABEL: test_fminf:
; SSE:       # %bb.0:
; SSE-NEXT:    movaps %xmm0, %xmm2
; SSE-NEXT:    cmpunordss %xmm0, %xmm2
; SSE-NEXT:    movaps %xmm2, %xmm3
; SSE-NEXT:    andps %xmm1, %xmm3
; SSE-NEXT:    minss %xmm0, %xmm1
; SSE-NEXT:    andnps %xmm1, %xmm2
; SSE-NEXT:    orps %xmm3, %xmm2
; SSE-NEXT:    movaps %xmm2, %xmm0
; SSE-NEXT:    retq
;
; AVX-LABEL: test_fminf:
; AVX:       # %bb.0:
; AVX-NEXT:    vminss %xmm0, %xmm1, %xmm2
; AVX-NEXT:    vcmpunordss %xmm0, %xmm0, %xmm0
; AVX-NEXT:    vblendvps %xmm0, %xmm1, %xmm2, %xmm0
; AVX-NEXT:    retq
  %z = call float @fminf(float %x, float %y) readnone
  ret float %z
}

; FIXME: As the vector tests show, the SSE run shouldn't need this many moves.

define double @test_fmin(double %x, double %y) {
; SSE-LABEL: test_fmin:
; SSE:       # %bb.0:
; SSE-NEXT:    movapd %xmm0, %xmm2
; SSE-NEXT:    cmpunordsd %xmm0, %xmm2
; SSE-NEXT:    movapd %xmm2, %xmm3
; SSE-NEXT:    andpd %xmm1, %xmm3
; SSE-NEXT:    minsd %xmm0, %xmm1
; SSE-NEXT:    andnpd %xmm1, %xmm2
; SSE-NEXT:    orpd %xmm3, %xmm2
; SSE-NEXT:    movapd %xmm2, %xmm0
; SSE-NEXT:    retq
;
; AVX-LABEL: test_fmin:
; AVX:       # %bb.0:
; AVX-NEXT:    vminsd %xmm0, %xmm1, %xmm2
; AVX-NEXT:    vcmpunordsd %xmm0, %xmm0, %xmm0
; AVX-NEXT:    vblendvpd %xmm0, %xmm1, %xmm2, %xmm0
; AVX-NEXT:    retq
  %z = call double @fmin(double %x, double %y) readnone
  ret double %z
}

define x86_fp80 @test_fminl(x86_fp80 %x, x86_fp80 %y) {
; CHECK-LABEL: test_fminl:
; CHECK:       # %bb.0:
; CHECK-NEXT:    subq $40, %rsp
; CHECK-NEXT:    .cfi_def_cfa_offset 48
; CHECK-NEXT:    fldt {{[0-9]+}}(%rsp)
; CHECK-NEXT:    fldt {{[0-9]+}}(%rsp)
; CHECK-NEXT:    fstpt {{[0-9]+}}(%rsp)
; CHECK-NEXT:    fstpt (%rsp)
; CHECK-NEXT:    callq fminl
; CHECK-NEXT:    addq $40, %rsp
; CHECK-NEXT:    .cfi_def_cfa_offset 8
; CHECK-NEXT:    retq
  %z = call x86_fp80 @fminl(x86_fp80 %x, x86_fp80 %y) readnone
  ret x86_fp80 %z
}

define float @test_intrinsic_fminf(float %x, float %y) {
; SSE-LABEL: test_intrinsic_fminf:
; SSE:       # %bb.0:
; SSE-NEXT:    movaps %xmm0, %xmm2
; SSE-NEXT:    cmpunordss %xmm0, %xmm2
; SSE-NEXT:    movaps %xmm2, %xmm3
; SSE-NEXT:    andps %xmm1, %xmm3
; SSE-NEXT:    minss %xmm0, %xmm1
; SSE-NEXT:    andnps %xmm1, %xmm2
; SSE-NEXT:    orps %xmm3, %xmm2
; SSE-NEXT:    movaps %xmm2, %xmm0
; SSE-NEXT:    retq
;
; AVX-LABEL: test_intrinsic_fminf:
; AVX:       # %bb.0:
; AVX-NEXT:    vminss %xmm0, %xmm1, %xmm2
; AVX-NEXT:    vcmpunordss %xmm0, %xmm0, %xmm0
; AVX-NEXT:    vblendvps %xmm0, %xmm1, %xmm2, %xmm0
; AVX-NEXT:    retq
  %z = call float @llvm.minnum.f32(float %x, float %y) readnone
  ret float %z
}

define double @test_intrinsic_fmin(double %x, double %y) {
; SSE-LABEL: test_intrinsic_fmin:
; SSE:       # %bb.0:
; SSE-NEXT:    movapd %xmm0, %xmm2
; SSE-NEXT:    cmpunordsd %xmm0, %xmm2
; SSE-NEXT:    movapd %xmm2, %xmm3
; SSE-NEXT:    andpd %xmm1, %xmm3
; SSE-NEXT:    minsd %xmm0, %xmm1
; SSE-NEXT:    andnpd %xmm1, %xmm2
; SSE-NEXT:    orpd %xmm3, %xmm2
; SSE-NEXT:    movapd %xmm2, %xmm0
; SSE-NEXT:    retq
;
; AVX-LABEL: test_intrinsic_fmin:
; AVX:       # %bb.0:
; AVX-NEXT:    vminsd %xmm0, %xmm1, %xmm2
; AVX-NEXT:    vcmpunordsd %xmm0, %xmm0, %xmm0
; AVX-NEXT:    vblendvpd %xmm0, %xmm1, %xmm2, %xmm0
; AVX-NEXT:    retq
  %z = call double @llvm.minnum.f64(double %x, double %y) readnone
  ret double %z
}

define x86_fp80 @test_intrinsic_fminl(x86_fp80 %x, x86_fp80 %y) {
; CHECK-LABEL: test_intrinsic_fminl:
; CHECK:       # %bb.0:
; CHECK-NEXT:    subq $40, %rsp
; CHECK-NEXT:    .cfi_def_cfa_offset 48
; CHECK-NEXT:    fldt {{[0-9]+}}(%rsp)
; CHECK-NEXT:    fldt {{[0-9]+}}(%rsp)
; CHECK-NEXT:    fstpt {{[0-9]+}}(%rsp)
; CHECK-NEXT:    fstpt (%rsp)
; CHECK-NEXT:    callq fminl
; CHECK-NEXT:    addq $40, %rsp
; CHECK-NEXT:    .cfi_def_cfa_offset 8
; CHECK-NEXT:    retq
  %z = call x86_fp80 @llvm.minnum.f80(x86_fp80 %x, x86_fp80 %y) readnone
  ret x86_fp80 %z
}

define <2 x float> @test_intrinsic_fmin_v2f32(<2 x float> %x, <2 x float> %y) {
; SSE-LABEL: test_intrinsic_fmin_v2f32:
; SSE:       # %bb.0:
; SSE-NEXT:    movaps %xmm1, %xmm2
; SSE-NEXT:    minps %xmm0, %xmm2
; SSE-NEXT:    cmpunordps %xmm0, %xmm0
; SSE-NEXT:    andps %xmm0, %xmm1
; SSE-NEXT:    andnps %xmm2, %xmm0
; SSE-NEXT:    orps %xmm1, %xmm0
; SSE-NEXT:    retq
;
; AVX-LABEL: test_intrinsic_fmin_v2f32:
; AVX:       # %bb.0:
; AVX-NEXT:    vminps %xmm0, %xmm1, %xmm2
; AVX-NEXT:    vcmpunordps %xmm0, %xmm0, %xmm0
; AVX-NEXT:    vblendvps %xmm0, %xmm1, %xmm2, %xmm0
; AVX-NEXT:    retq
  %z = call <2 x float> @llvm.minnum.v2f32(<2 x float> %x, <2 x float> %y) readnone
  ret <2 x float> %z
}

define <4 x float> @test_intrinsic_fmin_v4f32(<4 x float> %x, <4 x float> %y) {
; SSE-LABEL: test_intrinsic_fmin_v4f32:
; SSE:       # %bb.0:
; SSE-NEXT:    movaps %xmm1, %xmm2
; SSE-NEXT:    minps %xmm0, %xmm2
; SSE-NEXT:    cmpunordps %xmm0, %xmm0
; SSE-NEXT:    andps %xmm0, %xmm1
; SSE-NEXT:    andnps %xmm2, %xmm0
; SSE-NEXT:    orps %xmm1, %xmm0
; SSE-NEXT:    retq
;
; AVX-LABEL: test_intrinsic_fmin_v4f32:
; AVX:       # %bb.0:
; AVX-NEXT:    vminps %xmm0, %xmm1, %xmm2
; AVX-NEXT:    vcmpunordps %xmm0, %xmm0, %xmm0
; AVX-NEXT:    vblendvps %xmm0, %xmm1, %xmm2, %xmm0
; AVX-NEXT:    retq
  %z = call <4 x float> @llvm.minnum.v4f32(<4 x float> %x, <4 x float> %y) readnone
  ret <4 x float> %z
}

define <2 x double> @test_intrinsic_fmin_v2f64(<2 x double> %x, <2 x double> %y) {
; SSE-LABEL: test_intrinsic_fmin_v2f64:
; SSE:       # %bb.0:
; SSE-NEXT:    movapd %xmm1, %xmm2
; SSE-NEXT:    minpd %xmm0, %xmm2
; SSE-NEXT:    cmpunordpd %xmm0, %xmm0
; SSE-NEXT:    andpd %xmm0, %xmm1
; SSE-NEXT:    andnpd %xmm2, %xmm0
; SSE-NEXT:    orpd %xmm1, %xmm0
; SSE-NEXT:    retq
;
; AVX-LABEL: test_intrinsic_fmin_v2f64:
; AVX:       # %bb.0:
; AVX-NEXT:    vminpd %xmm0, %xmm1, %xmm2
; AVX-NEXT:    vcmpunordpd %xmm0, %xmm0, %xmm0
; AVX-NEXT:    vblendvpd %xmm0, %xmm1, %xmm2, %xmm0
; AVX-NEXT:    retq
  %z = call <2 x double> @llvm.minnum.v2f64(<2 x double> %x, <2 x double> %y) readnone
  ret <2 x double> %z
}

define <4 x double> @test_intrinsic_fmin_v4f64(<4 x double> %x, <4 x double> %y) {
; SSE-LABEL: test_intrinsic_fmin_v4f64:
; SSE:       # %bb.0:
; SSE-NEXT:    movapd %xmm2, %xmm4
; SSE-NEXT:    minpd %xmm0, %xmm4
; SSE-NEXT:    cmpunordpd %xmm0, %xmm0
; SSE-NEXT:    andpd %xmm0, %xmm2
; SSE-NEXT:    andnpd %xmm4, %xmm0
; SSE-NEXT:    orpd %xmm2, %xmm0
; SSE-NEXT:    movapd %xmm3, %xmm2
; SSE-NEXT:    minpd %xmm1, %xmm2
; SSE-NEXT:    cmpunordpd %xmm1, %xmm1
; SSE-NEXT:    andpd %xmm1, %xmm3
; SSE-NEXT:    andnpd %xmm2, %xmm1
; SSE-NEXT:    orpd %xmm3, %xmm1
; SSE-NEXT:    retq
;
; AVX-LABEL: test_intrinsic_fmin_v4f64:
; AVX:       # %bb.0:
; AVX-NEXT:    vminpd %ymm0, %ymm1, %ymm2
; AVX-NEXT:    vcmpunordpd %ymm0, %ymm0, %ymm0
; AVX-NEXT:    vblendvpd %ymm0, %ymm1, %ymm2, %ymm0
; AVX-NEXT:    retq
  %z = call <4 x double> @llvm.minnum.v4f64(<4 x double> %x, <4 x double> %y) readnone
  ret <4 x double> %z
}

define <8 x double> @test_intrinsic_fmin_v8f64(<8 x double> %x, <8 x double> %y) {
; SSE-LABEL: test_intrinsic_fmin_v8f64:
; SSE:       # %bb.0:
; SSE-NEXT:    movapd %xmm4, %xmm8
; SSE-NEXT:    minpd %xmm0, %xmm8
; SSE-NEXT:    cmpunordpd %xmm0, %xmm0
; SSE-NEXT:    andpd %xmm0, %xmm4
; SSE-NEXT:    andnpd %xmm8, %xmm0
; SSE-NEXT:    orpd %xmm4, %xmm0
; SSE-NEXT:    movapd %xmm5, %xmm4
; SSE-NEXT:    minpd %xmm1, %xmm4
; SSE-NEXT:    cmpunordpd %xmm1, %xmm1
; SSE-NEXT:    andpd %xmm1, %xmm5
; SSE-NEXT:    andnpd %xmm4, %xmm1
; SSE-NEXT:    orpd %xmm5, %xmm1
; SSE-NEXT:    movapd %xmm6, %xmm4
; SSE-NEXT:    minpd %xmm2, %xmm4
; SSE-NEXT:    cmpunordpd %xmm2, %xmm2
; SSE-NEXT:    andpd %xmm2, %xmm6
; SSE-NEXT:    andnpd %xmm4, %xmm2
; SSE-NEXT:    orpd %xmm6, %xmm2
; SSE-NEXT:    movapd %xmm7, %xmm4
; SSE-NEXT:    minpd %xmm3, %xmm4
; SSE-NEXT:    cmpunordpd %xmm3, %xmm3
; SSE-NEXT:    andpd %xmm3, %xmm7
; SSE-NEXT:    andnpd %xmm4, %xmm3
; SSE-NEXT:    orpd %xmm7, %xmm3
; SSE-NEXT:    retq
;
; AVX-LABEL: test_intrinsic_fmin_v8f64:
; AVX:       # %bb.0:
; AVX-NEXT:    vminpd %ymm0, %ymm2, %ymm4
; AVX-NEXT:    vcmpunordpd %ymm0, %ymm0, %ymm0
; AVX-NEXT:    vblendvpd %ymm0, %ymm2, %ymm4, %ymm0
; AVX-NEXT:    vminpd %ymm1, %ymm3, %ymm2
; AVX-NEXT:    vcmpunordpd %ymm1, %ymm1, %ymm1
; AVX-NEXT:    vblendvpd %ymm1, %ymm3, %ymm2, %ymm1
; AVX-NEXT:    retq
  %z = call <8 x double> @llvm.minnum.v8f64(<8 x double> %x, <8 x double> %y) readnone
  ret <8 x double> %z
}

; The IR-level FMF propagate to the node. With nnan, there's no need to blend.

define float @minnum_intrinsic_nnan_fmf_f32(float %a, float %b) {
; SSE-LABEL: minnum_intrinsic_nnan_fmf_f32:
; SSE:       # %bb.0:
; SSE-NEXT:    minss %xmm1, %xmm0
; SSE-NEXT:    retq
;
; AVX-LABEL: minnum_intrinsic_nnan_fmf_f32:
; AVX:       # %bb.0:
; AVX-NEXT:    vminss %xmm1, %xmm0, %xmm0
; AVX-NEXT:    retq
  %r = tail call nnan float @llvm.minnum.f32(float %a, float %b)
  ret float %r
}

; Make sure vectors work too.

define <2 x double> @minnum_intrinsic_nnan_fmf_v2f64(<2 x double> %a, <2 x double> %b) {
; SSE-LABEL: minnum_intrinsic_nnan_fmf_v2f64:
; SSE:       # %bb.0:
; SSE-NEXT:    minpd %xmm1, %xmm0
; SSE-NEXT:    retq
;
; AVX-LABEL: minnum_intrinsic_nnan_fmf_v2f64:
; AVX:       # %bb.0:
; AVX-NEXT:    vminpd %xmm1, %xmm0, %xmm0
; AVX-NEXT:    retq
  %r = tail call nnan <2 x double> @llvm.minnum.v2f64(<2 x double> %a, <2 x double> %b)
  ret <2 x double> %r
}

; Current (but legacy someday): a function-level attribute should also enable the fold.

define double @minnum_intrinsic_nnan_attr_f64(double %a, double %b) #0 {
; SSE-LABEL: minnum_intrinsic_nnan_attr_f64:
; SSE:       # %bb.0:
; SSE-NEXT:    minsd %xmm1, %xmm0
; SSE-NEXT:    retq
;
; AVX-LABEL: minnum_intrinsic_nnan_attr_f64:
; AVX:       # %bb.0:
; AVX-NEXT:    vminsd %xmm1, %xmm0, %xmm0
; AVX-NEXT:    retq
  %r = tail call double @llvm.minnum.f64(double %a, double %b)
  ret double %r
}

; Make sure vectors work too.

define <4 x float> @minnum_intrinsic_nnan_attr_v4f32(<4 x float> %a, <4 x float> %b) #0 {
; SSE-LABEL: minnum_intrinsic_nnan_attr_v4f32:
; SSE:       # %bb.0:
; SSE-NEXT:    minps %xmm1, %xmm0
; SSE-NEXT:    retq
;
; AVX-LABEL: minnum_intrinsic_nnan_attr_v4f32:
; AVX:       # %bb.0:
; AVX-NEXT:    vminps %xmm1, %xmm0, %xmm0
; AVX-NEXT:    retq
  %r = tail call <4 x float> @llvm.minnum.v4f32(<4 x float> %a, <4 x float> %b)
  ret <4 x float> %r
}

attributes #0 = { "no-nans-fp-math"="true" }