test/Transforms/InstCombine/create-class-from-logic-fcmp.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -S -passes=instcombine < %s | FileCheck %s

; Test and/or of fcmps that could be folded to llvm.is.fpclass

; --------------------------------------------------------------------
; Base pattern, !isfinite(x) || x == 0.0
; --------------------------------------------------------------------

; Base pattern !isfinite(x) || x == 0.0
define i1 @not_isfinite_or_zero_f16(half %x) {
; CHECK-LABEL: @not_isfinite_or_zero_f16(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 615)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp ueq half %fabs, 0xH7C00
  %cmpzero = fcmp oeq half %x, 0xH0000
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

; Base pattern x == 0.0 || !isfinite(x)
define i1 @not_isfinite_or_zero_f16_commute_or(half %x) {
; CHECK-LABEL: @not_isfinite_or_zero_f16_commute_or(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 615)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp ueq half %fabs, 0xH7C00
  %cmpzero = fcmp oeq half %x, 0xH0000
  %class = or i1 %cmpinf, %cmpzero
  ret i1 %class
}

; Base pattern !isfinite(x) || x == -0.0
define i1 @not_isfinite_or_zero_f16_negzero(half %x) {
; CHECK-LABEL: @not_isfinite_or_zero_f16_negzero(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 615)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp ueq half %fabs, 0xH7C00
  %cmpzero = fcmp oeq half %x, -0.0
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

define i1 @not_isfinite_or_fabs_oeq_zero_f16(half %x) {
; CHECK-LABEL: @not_isfinite_or_fabs_oeq_zero_f16(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 615)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp ueq half %fabs, 0xH7C00
  %cmpzero = fcmp oeq half %fabs, 0xH0000
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

; Base pattern !isfinite(x) || x == 0.0
define <2 x i1> @not_isfinite_or_zero_v2f16(<2 x half> %x) {
; CHECK-LABEL: @not_isfinite_or_zero_v2f16(
; CHECK-NEXT:    [[CLASS:%.*]] = call <2 x i1> @llvm.is.fpclass.v2f16(<2 x half> [[X:%.*]], i32 615)
; CHECK-NEXT:    ret <2 x i1> [[CLASS]]
;
  %fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %x)
  %cmpinf = fcmp ueq <2 x half> %fabs, <half 0xH7C00, half 0xH7C00>
  %cmpzero = fcmp oeq <2 x half> %x, zeroinitializer
  %class = or <2 x i1> %cmpzero, %cmpinf
  ret <2 x i1> %class
}

; Base pattern !isfinite(x) || x == <0.0, -0.0>
define <2 x i1> @not_isfinite_or_zero_v2f16_pos0_neg0_vec(<2 x half> %x) {
; CHECK-LABEL: @not_isfinite_or_zero_v2f16_pos0_neg0_vec(
; CHECK-NEXT:    [[CLASS:%.*]] = call <2 x i1> @llvm.is.fpclass.v2f16(<2 x half> [[X:%.*]], i32 615)
; CHECK-NEXT:    ret <2 x i1> [[CLASS]]
;
  %fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %x)
  %cmpinf = fcmp ueq <2 x half> %fabs, <half 0xH7C00, half 0xH7C00>
  %cmpzero = fcmp oeq <2 x half> %x, <half 0.0, half -0.0>
  %class = or <2 x i1> %cmpzero, %cmpinf
  ret <2 x i1> %class
}

; Base pattern x == 0.0 || !isfinite(x)
define <2 x i1> @not_isfinite_or_zero_v2f16_commute_or(<2 x half> %x) {
; CHECK-LABEL: @not_isfinite_or_zero_v2f16_commute_or(
; CHECK-NEXT:    [[CLASS:%.*]] = call <2 x i1> @llvm.is.fpclass.v2f16(<2 x half> [[X:%.*]], i32 615)
; CHECK-NEXT:    ret <2 x i1> [[CLASS]]
;
  %fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %x)
  %cmpinf = fcmp ueq <2 x half> %fabs, <half 0xH7C00, half 0xH7C00>
  %cmpzero = fcmp oeq <2 x half> %x, zeroinitializer
  %class = or <2 x i1> %cmpinf, %cmpzero
  ret <2 x i1> %class
}

; Positive test
define i1 @oeq_isinf_or_oeq_zero(half %x) {
; CHECK-LABEL: @oeq_isinf_or_oeq_zero(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 612)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp oeq half %fabs, 0xH7C00
  %cmpzero = fcmp oeq half %x, 0xH0000
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

; Missing fabs for infinity check
define i1 @ueq_inf_or_oeq_zero(half %x) {
; CHECK-LABEL: @ueq_inf_or_oeq_zero(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 611)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp ueq half %x, 0xH7C00
  %cmpzero = fcmp oeq half %x, 0xH0000
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

; Extra fabs.
define i1 @oeq_isinf_or_fabs_oeq_zero(half %x) {
; CHECK-LABEL: @oeq_isinf_or_fabs_oeq_zero(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 612)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp oeq half %fabs, 0xH7C00
  %cmpzero = fcmp oeq half %fabs, 0xH0000
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

; Positive test
define i1 @ueq_0_or_oeq_inf(half %x) {
; CHECK-LABEL: @ueq_0_or_oeq_inf(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 611)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp ueq half %fabs, 0xH0000
  %cmpzero = fcmp oeq half %x, 0xH7C00
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

; Positive test
define i1 @not_isfinite_or_zero_f16_not_inf(half %x) {
; CHECK-LABEL: @not_isfinite_or_zero_f16_not_inf(
; CHECK-NEXT:    ret i1 true
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp ueq half %fabs, 0xH7C01
  %cmpzero = fcmp oeq half %x, 0xH0000
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

; Positive test
define i1 @ueq_inf_or_ueq_zero(half %x) {
; CHECK-LABEL: @ueq_inf_or_ueq_zero(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 615)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp ueq half %fabs, 0xH7C00
  %cmpzero = fcmp ueq half %x, 0xH0000
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

; Positive test
define i1 @not_isfinite_and_zero_f16(half %x) {
; CHECK-LABEL: @not_isfinite_and_zero_f16(
; CHECK-NEXT:    ret i1 false
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp ueq half %fabs, 0xH7C00
  %cmpzero = fcmp oeq half %x, 0xH0000
  %class = and i1 %cmpzero, %cmpinf
  ret i1 %class
}

; Negative test
define i1 @not_isfinite_or_zero_f16_multi_use_cmp0(half %x, ptr %ptr) {
; CHECK-LABEL: @not_isfinite_or_zero_f16_multi_use_cmp0(
; CHECK-NEXT:    [[FABS:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp ueq half [[FABS]], 0xH7C00
; CHECK-NEXT:    store i1 [[CMPINF]], ptr [[PTR:%.*]], align 1
; CHECK-NEXT:    [[CMPZERO:%.*]] = fcmp oeq half [[X]], 0xH0000
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMPZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp ueq half %fabs, 0xH7C00
  store i1 %cmpinf, ptr %ptr
  %cmpzero = fcmp oeq half %x, 0xH0000
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

; Negative test
define i1 @not_isfinite_or_zero_f16_multi_use_cmp1(half %x, ptr %ptr) {
; CHECK-LABEL: @not_isfinite_or_zero_f16_multi_use_cmp1(
; CHECK-NEXT:    [[FABS:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp ueq half [[FABS]], 0xH7C00
; CHECK-NEXT:    [[CMPZERO:%.*]] = fcmp oeq half [[X]], 0xH0000
; CHECK-NEXT:    store i1 [[CMPZERO]], ptr [[PTR:%.*]], align 1
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMPZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp ueq half %fabs, 0xH7C00
  %cmpzero = fcmp oeq half %x, 0xH0000
  store i1 %cmpzero, ptr %ptr
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

; Negative test
define i1 @not_isfinite_or_zero_f16_neg_inf(half %x) {
; CHECK-LABEL: @not_isfinite_or_zero_f16_neg_inf(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp ueq half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp ueq half %fabs, 0xHFC00
  %cmpzero = fcmp oeq half %x, 0xH0000
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

; Negative test
define i1 @olt_0_or_fabs_ueq_inf(half %x) {
; CHECK-LABEL: @olt_0_or_fabs_ueq_inf(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 543)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp ueq half %fabs, 0xH7C00
  %cmpzero = fcmp olt half %x, 0xH0000
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

; Negative test
define i1 @oeq_0_or_fabs_ult_inf(half %x) {
; CHECK-LABEL: @oeq_0_or_fabs_ult_inf(
; CHECK-NEXT:    [[TMP1:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp une half [[TMP1]], 0xH7C00
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp ult half %fabs, 0xH7C00
  %cmpzero = fcmp oeq half %x, 0xH0000
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

; Negative test
define i1 @not_isfinite_or_zero_f16_multi_not_0(half %x, ptr %ptr) {
; CHECK-LABEL: @not_isfinite_or_zero_f16_multi_not_0(
; CHECK-NEXT:    [[FABS:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp ueq half [[FABS]], 0xH7C00
; CHECK-NEXT:    [[CMPZERO:%.*]] = fcmp oeq half [[X]], 0xH3C00
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMPZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp ueq half %fabs, 0xH7C00
  %cmpzero = fcmp oeq half %x, 1.0
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

; Negative test
define i1 @not_isfinite_or_zero_f16_fabs_wrong_val(half %x, half %y) {
; CHECK-LABEL: @not_isfinite_or_zero_f16_fabs_wrong_val(
; CHECK-NEXT:    [[FABS:%.*]] = call half @llvm.fabs.f16(half [[Y:%.*]])
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp ueq half [[FABS]], 0xH7C00
; CHECK-NEXT:    [[CMPZERO:%.*]] = fcmp oeq half [[X:%.*]], 0xH0000
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMPZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %y)
  %cmpinf = fcmp ueq half %fabs, 0xH7C00
  %cmpzero = fcmp oeq half %x, 0xH0000
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

; Negative test
define i1 @not_isfinite_or_zero_f16_not_fabs(half %x) {
; CHECK-LABEL: @not_isfinite_or_zero_f16_not_fabs(
; CHECK-NEXT:    [[FABS:%.*]] = call half @llvm.canonicalize.f16(half [[X:%.*]])
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp ueq half [[FABS]], 0xH7C00
; CHECK-NEXT:    [[CMPZERO:%.*]] = fcmp oeq half [[X]], 0xH0000
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMPZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.canonicalize.f16(half %x)
  %cmpinf = fcmp ueq half %fabs, 0xH7C00
  %cmpzero = fcmp oeq half %x, 0xH0000
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

; --------------------------------------------------------------------
; Negated pattern, isfinite(x) && !(x == 0.0)
; --------------------------------------------------------------------

; Negation of base pattern, isfinite(x) && !(x == 0.0)
define i1 @negated_isfinite_or_zero_f16(half %x) {
; CHECK-LABEL: @negated_isfinite_or_zero_f16(
; CHECK-NEXT:    [[NOT_CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 408)
; CHECK-NEXT:    ret i1 [[NOT_CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp one half %fabs, 0xH7C00
  %cmpzero = fcmp une half %x, 0xH0000
  %not.class = and i1 %cmpzero, %cmpinf
  ret i1 %not.class
}

; Commuted !(x == 0.0) && isfinite(x)
define i1 @negated_isfinite_or_zero_f16_commute_and(half %x) {
; CHECK-LABEL: @negated_isfinite_or_zero_f16_commute_and(
; CHECK-NEXT:    [[NOT_CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 408)
; CHECK-NEXT:    ret i1 [[NOT_CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp one half %fabs, 0xH7C00
  %cmpzero = fcmp une half %x, 0xH0000
  %not.class = and i1 %cmpinf, %cmpzero
  ret i1 %not.class
}

; isfinite(x) && !(x == -0.0)
define i1 @negated_isfinite_or_zero_f16_negzero(half %x) {
; CHECK-LABEL: @negated_isfinite_or_zero_f16_negzero(
; CHECK-NEXT:    [[NOT_CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 408)
; CHECK-NEXT:    ret i1 [[NOT_CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp one half %fabs, 0xH7C00
  %cmpzero = fcmp une half %x, -0.0
  %not.class = and i1 %cmpzero, %cmpinf
  ret i1 %not.class
}

; Negated pattern
define <2 x i1> @negated_isfinite_or_zero_v2f16(<2 x half> %x) {
; CHECK-LABEL: @negated_isfinite_or_zero_v2f16(
; CHECK-NEXT:    [[NOT_CLASS:%.*]] = call <2 x i1> @llvm.is.fpclass.v2f16(<2 x half> [[X:%.*]], i32 408)
; CHECK-NEXT:    ret <2 x i1> [[NOT_CLASS]]
;
  %fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %x)
  %cmpinf = fcmp one <2 x half> %fabs, <half 0xH7C00, half 0xH7C00>
  %cmpzero = fcmp une <2 x half> %x, zeroinitializer
  %not.class = and <2 x i1> %cmpzero, %cmpinf
  ret <2 x i1> %not.class
}

; Negated pattern, commuted vector and
define <2 x i1> @negated_isfinite_or_zero_v2f16_comumte(<2 x half> %x) {
; CHECK-LABEL: @negated_isfinite_or_zero_v2f16_comumte(
; CHECK-NEXT:    [[NOT_CLASS:%.*]] = call <2 x i1> @llvm.is.fpclass.v2f16(<2 x half> [[X:%.*]], i32 408)
; CHECK-NEXT:    ret <2 x i1> [[NOT_CLASS]]
;
  %fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %x)
  %cmpinf = fcmp one <2 x half> %fabs, <half 0xH7C00, half 0xH7C00>
  %cmpzero = fcmp une <2 x half> %x, zeroinitializer
  %not.class = and <2 x i1> %cmpinf, %cmpzero
  ret <2 x i1> %not.class
}

; Positive test
define i1 @negated_isfinite_or_zero_f16_not_une_zero(half %x) {
; CHECK-LABEL: @negated_isfinite_or_zero_f16_not_une_zero(
; CHECK-NEXT:    [[NOT_CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 408)
; CHECK-NEXT:    ret i1 [[NOT_CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp one half %fabs, 0xH7C00
  %cmpzero = fcmp one half %x, 0xH0000
  %not.class = and i1 %cmpzero, %cmpinf
  ret i1 %not.class
}

; Positive test
define i1 @negated_isfinite_and_zero_f16(half %x) {
; CHECK-LABEL: @negated_isfinite_and_zero_f16(
; CHECK-NEXT:    ret i1 true
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp one half %fabs, 0xH7C00
  %cmpzero = fcmp une half %x, 0xH0000
  %not.class = or i1 %cmpzero, %cmpinf
  ret i1 %not.class
}

; Negative test
define i1 @negated_isfinite_or_zero_f16_swapped_constants(half %x) {
; CHECK-LABEL: @negated_isfinite_or_zero_f16_swapped_constants(
; CHECK-NEXT:    [[NOT_CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 412)
; CHECK-NEXT:    ret i1 [[NOT_CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpzero = fcmp one half %fabs, 0xH0000
  %cmpinf = fcmp une half %x, 0xH7C00
  %not.class = and i1 %cmpzero, %cmpinf
  ret i1 %not.class
}

; Negative test
define i1 @negated_isfinite_or_zero_f16_multi_use_cmp0(half %x, ptr %ptr) {
; CHECK-LABEL: @negated_isfinite_or_zero_f16_multi_use_cmp0(
; CHECK-NEXT:    [[FABS:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp one half [[FABS]], 0xH7C00
; CHECK-NEXT:    store i1 [[CMPINF]], ptr [[PTR:%.*]], align 1
; CHECK-NEXT:    [[CMPZERO:%.*]] = fcmp une half [[X]], 0xH0000
; CHECK-NEXT:    [[NOT_CLASS:%.*]] = and i1 [[CMPZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[NOT_CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp one half %fabs, 0xH7C00
  store i1 %cmpinf, ptr %ptr
  %cmpzero = fcmp une half %x, 0xH0000
  %not.class = and i1 %cmpzero, %cmpinf
  ret i1 %not.class
}

; Negative test
define i1 @negated_isfinite_or_zero_f16_multi_use_cmp1(half %x, ptr %ptr) {
; CHECK-LABEL: @negated_isfinite_or_zero_f16_multi_use_cmp1(
; CHECK-NEXT:    [[FABS:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp one half [[FABS]], 0xH7C00
; CHECK-NEXT:    [[CMPZERO:%.*]] = fcmp une half [[X]], 0xH0000
; CHECK-NEXT:    store i1 [[CMPZERO]], ptr [[PTR:%.*]], align 1
; CHECK-NEXT:    [[NOT_CLASS:%.*]] = and i1 [[CMPZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[NOT_CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp one half %fabs, 0xH7C00
  %cmpzero = fcmp une half %x, 0xH0000
  store i1 %cmpzero, ptr %ptr
  %not.class = and i1 %cmpzero, %cmpinf
  ret i1 %not.class
}

; Negative test
define i1 @negated_isfinite_or_zero_f16_multi_use_cmp0_not_one_inf(half %x) {
; CHECK-LABEL: @negated_isfinite_or_zero_f16_multi_use_cmp0_not_one_inf(
; CHECK-NEXT:    [[NOT_CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 411)
; CHECK-NEXT:    ret i1 [[NOT_CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp une half %fabs, 0xH7C00
  %cmpzero = fcmp une half %x, 0xH0000
  %not.class = and i1 %cmpzero, %cmpinf
  ret i1 %not.class
}

; Negative test
define i1 @negated_isfinite_or_zero_f16_fabs_wrong_value(half %x, half %y) {
; CHECK-LABEL: @negated_isfinite_or_zero_f16_fabs_wrong_value(
; CHECK-NEXT:    [[FABS:%.*]] = call half @llvm.fabs.f16(half [[Y:%.*]])
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp one half [[FABS]], 0xH7C00
; CHECK-NEXT:    [[CMPZERO:%.*]] = fcmp une half [[X:%.*]], 0xH0000
; CHECK-NEXT:    [[NOT_CLASS:%.*]] = and i1 [[CMPZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[NOT_CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %y)
  %cmpinf = fcmp one half %fabs, 0xH7C00
  %cmpzero = fcmp une half %x, 0xH0000
  %not.class = and i1 %cmpzero, %cmpinf
  ret i1 %not.class
}

; --------------------------------------------------------------------
; Other fcmp to class recognition
; --------------------------------------------------------------------

define i1 @fcmp_une_0_or_fcmp_une_inf(half %x) {
; CHECK-LABEL: @fcmp_une_0_or_fcmp_une_inf(
; CHECK-NEXT:    ret i1 true
;
  %cmpzero = fcmp une half %x, 0.0
  %cmpinf = fcmp une half %x, 0xH7C00
  %or = or i1 %cmpzero, %cmpinf
  ret i1 %or
}

define i1 @fcmp_one_0_and_fcmp_une_fabs_inf(half %x) {
; CHECK-LABEL: @fcmp_one_0_and_fcmp_une_fabs_inf(
; CHECK-NEXT:    [[AND:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 408)
; CHECK-NEXT:    ret i1 [[AND]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpzero = fcmp one half %x, 0.0
  %cmpinf = fcmp une half %fabs, 0xH7C00
  %and = and i1 %cmpzero, %cmpinf
  ret i1 %and
}

define i1 @fcmp_une_0_and_fcmp_une_fabs_inf(half %x) {
; CHECK-LABEL: @fcmp_une_0_and_fcmp_une_fabs_inf(
; CHECK-NEXT:    [[AND:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 411)
; CHECK-NEXT:    ret i1 [[AND]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpzero = fcmp une half %x, 0.0
  %cmpinf = fcmp une half %fabs, 0xH7C00
  %and = and i1 %cmpzero, %cmpinf
  ret i1 %and
}

define i1 @fcmp_une_0_and_fcmp_une_neginf(half %x) {
; CHECK-LABEL: @fcmp_une_0_and_fcmp_une_neginf(
; CHECK-NEXT:    ret i1 true
;
  %cmpzero = fcmp une half %x, 0.0
  %cmpinf = fcmp une half %x, 0xHFC00
  %or = or i1 %cmpzero, %cmpinf
  ret i1 %or
}

define i1 @issubnormal_or_inf(half %x) {
; CHECK-LABEL: @issubnormal_or_inf(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 756)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp oeq half %fabs, 0xH7C00
  %cmp.smallest.normal = fcmp olt half %fabs, 0xH0400
  %class = or i1 %cmp.smallest.normal, %cmpinf
  ret i1 %class
}

define i1 @olt_smallest_normal_or_inf(half %x) {
; CHECK-LABEL: @olt_smallest_normal_or_inf(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 764)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp oeq half %fabs, 0xH7C00
  %cmp.smallest.normal = fcmp olt half %x, 0xH0400 ; missing fabs
  %class = or i1 %cmp.smallest.normal, %cmpinf
  ret i1 %class
}

define i1 @not_issubnormal_or_inf(half %x) {
; CHECK-LABEL: @not_issubnormal_or_inf(
; CHECK-NEXT:    [[NOT:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 267)
; CHECK-NEXT:    ret i1 [[NOT]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp une half %fabs, 0xH7C00
  %cmp.smallest.normal = fcmp uge half %fabs, 0xH0400
  %not = and i1 %cmp.smallest.normal, %cmpinf
  ret i1 %not
}

define i1 @issubnormal_uge_or_inf(half %x) {
; CHECK-LABEL: @issubnormal_uge_or_inf(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 783)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp oeq half %fabs, 0xH7C00
  %cmp.smallest.normal = fcmp uge half %fabs, 0xH0400
  %class = or i1 %cmp.smallest.normal, %cmpinf
  ret i1 %class
}

; Negative test, not smallest normal
define i1 @issubnormal_or_inf_wrong_val(half %x) {
; CHECK-LABEL: @issubnormal_or_inf_wrong_val(
; CHECK-NEXT:    [[FABS:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp oeq half [[FABS]], 0xH7C00
; CHECK-NEXT:    [[CMP_SMALLEST_NORMAL:%.*]] = fcmp olt half [[FABS]], 0xH0401
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMP_SMALLEST_NORMAL]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp oeq half %fabs, 0xH7C00
  %cmp.smallest.normal = fcmp olt half %fabs, 0xH0401
  %class = or i1 %cmp.smallest.normal, %cmpinf
  ret i1 %class
}

define i1 @issubnormal_or_inf_neg_smallest_normal(half %x) {
; CHECK-LABEL: @issubnormal_or_inf_neg_smallest_normal(
; CHECK-NEXT:    [[FABS:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp oeq half [[FABS]], 0xH7C00
; CHECK-NEXT:    ret i1 [[CMPINF]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp oeq half %fabs, 0xH7C00
  %cmp.smallest.normal = fcmp olt half %fabs, 0xH8400
  %class = or i1 %cmp.smallest.normal, %cmpinf
  ret i1 %class
}

define i1 @fneg_fabs_olt_neg_smallest_normal_or_inf(half %x) {
; CHECK-LABEL: @fneg_fabs_olt_neg_smallest_normal_or_inf(
; CHECK-NEXT:    [[FABS:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp oeq half [[FABS]], 0xH7C00
; CHECK-NEXT:    [[CMP_SMALLEST_NORMAL:%.*]] = fcmp ogt half [[FABS]], 0xH0400
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMP_SMALLEST_NORMAL]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp oeq half %fabs, 0xH7C00
  %fneg.fabs = fneg half %fabs
  %cmp.smallest.normal = fcmp olt half %fneg.fabs, 0xH8400
  %class = or i1 %cmp.smallest.normal, %cmpinf
  ret i1 %class
}

define i1 @issubnormal_or_finite_olt(half %x) {
; CHECK-LABEL: @issubnormal_or_finite_olt(
; CHECK-NEXT:    [[TMP1:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[OR:%.*]] = fcmp one half [[TMP1]], 0xH7C00
; CHECK-NEXT:    ret i1 [[OR]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp olt half %fabs, 0xH7C00
  %cmp.smallest.normal = fcmp olt half %fabs, 0xH0400
  %or = or i1 %cmp.smallest.normal, %cmpinf
  ret i1 %or
}

; inf | nan | zero | subnormal
define i1 @issubnormal_or_finite_uge(half %x) {
; CHECK-LABEL: @issubnormal_or_finite_uge(
; CHECK-NEXT:    [[OR:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 759)
; CHECK-NEXT:    ret i1 [[OR]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp uge half %fabs, 0xH7C00
  %cmp.smallest.normal = fcmp olt half %fabs, 0xH0400
  %or = or i1 %cmp.smallest.normal, %cmpinf
  ret i1 %or
}

define i1 @issubnormal_and_finite_olt(half %x) {
; CHECK-LABEL: @issubnormal_and_finite_olt(
; CHECK-NEXT:    [[AND:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 240)
; CHECK-NEXT:    ret i1 [[AND]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp olt half %fabs, 0xH7C00
  %cmp.smallest.normal = fcmp olt half %fabs, 0xH0400
  %and = and i1 %cmp.smallest.normal, %cmpinf
  ret i1 %and
}

define i1 @not_zero_and_subnormal(half %x) {
; CHECK-LABEL: @not_zero_and_subnormal(
; CHECK-NEXT:    [[OR:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[OR]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmp.zero = fcmp one half %fabs, 0.0
  %cmp.smallest.normal = fcmp olt half %fabs, 0xH0400
  %or = or i1 %cmp.smallest.normal, %cmp.zero
  ret i1 %or
}

define i1 @fcmp_fabs_uge_inf_or_fabs_uge_smallest_norm(half %x) {
; CHECK-LABEL: @fcmp_fabs_uge_inf_or_fabs_uge_smallest_norm(
; CHECK-NEXT:    [[OR:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 783)
; CHECK-NEXT:    ret i1 [[OR]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp uge half %fabs, 0xH7C00
  %cmp.smallest.normal = fcmp uge half %fabs, 0xH0400
  %or = or i1 %cmp.smallest.normal, %cmpinf
  ret i1 %or
}

; --------------------------------------------------------------------
; Test ord/uno
; --------------------------------------------------------------------

define i1 @is_finite_and_ord(half %x) {
; CHECK-LABEL: @is_finite_and_ord(
; CHECK-NEXT:    [[FABS:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[AND:%.*]] = fcmp oeq half [[FABS]], 0xH7C00
; CHECK-NEXT:    ret i1 [[AND]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.finite = fcmp ueq half %fabs, 0xH7C00
  %ord = fcmp ord half %x, %x
  %and = and i1 %ord, %is.finite
  ret i1 %and
}

define i1 @is_finite_and_uno(half %x) {
; CHECK-LABEL: @is_finite_and_uno(
; CHECK-NEXT:    [[AND:%.*]] = fcmp uno half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[AND]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.finite = fcmp ueq half %fabs, 0xH7C00
  %uno = fcmp uno half %x, %x
  %and = and i1 %uno, %is.finite
  ret i1 %and
}

define i1 @is_finite_or_ord(half %x) {
; CHECK-LABEL: @is_finite_or_ord(
; CHECK-NEXT:    ret i1 true
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.finite = fcmp ueq half %fabs, 0xH7C00
  %ord = fcmp ord half %x, %x
  %or = or i1 %ord, %is.finite
  ret i1 %or
}

define i1 @is_finite_or_uno(half %x) {
; CHECK-LABEL: @is_finite_or_uno(
; CHECK-NEXT:    [[TMP1:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[OR:%.*]] = fcmp ueq half [[TMP1]], 0xH7C00
; CHECK-NEXT:    ret i1 [[OR]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.finite = fcmp ueq half %fabs, 0xH7C00
  %uno = fcmp uno half %x, %x
  %or = or i1 %uno, %is.finite
  ret i1 %or
}

define i1 @oeq_isinf_or_uno(half %x) {
; CHECK-LABEL: @oeq_isinf_or_uno(
; CHECK-NEXT:    [[TMP1:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp ueq half [[TMP1]], 0xH7C00
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp oeq half %fabs, 0xH7C00
  %uno = fcmp uno half %x, 0xH0000
  %class = or i1 %cmpinf, %uno
  ret i1 %class
}

define i1 @oeq_isinf_or_ord(half %x) {
; CHECK-LABEL: @oeq_isinf_or_ord(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp oeq half %fabs, 0xH7C00
  %uno = fcmp ord half %x, 0xH0000
  %class = or i1 %cmpinf, %uno
  ret i1 %class
}

define i1 @oeq_isinf_and_uno(half %x) {
; CHECK-LABEL: @oeq_isinf_and_uno(
; CHECK-NEXT:    ret i1 false
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp oeq half %fabs, 0xH7C00
  %uno = fcmp uno half %x, 0xH0000
  %and = and i1 %cmpinf, %uno
  ret i1 %and
}

define i1 @oeq_isinf_and_ord(half %x) {
; CHECK-LABEL: @oeq_isinf_and_ord(
; CHECK-NEXT:    [[TMP1:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[AND:%.*]] = fcmp oeq half [[TMP1]], 0xH7C00
; CHECK-NEXT:    ret i1 [[AND]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp oeq half %fabs, 0xH7C00
  %uno = fcmp ord half %x, 0xH0000
  %and = and i1 %cmpinf, %uno
  ret i1 %and
}

; --------------------------------------------------------------------
; isnormal(x) || x == 0.0
; --------------------------------------------------------------------

define i1 @isnormal_or_zero(half %x) #0 {
; CHECK-LABEL: @isnormal_or_zero(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[AND1:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 360)
; CHECK-NEXT:    ret i1 [[AND1]]
;
entry:
  %iseq = fcmp ord half %x, 0xH0000
  %fabs = tail call half @llvm.fabs.f16(half %x)
  %isinf = fcmp ult half %fabs, 0xH7C00
  %isnormal = fcmp uge half %fabs, 0xH0400
  %and = and i1 %iseq, %isinf
  %and1 = and i1 %isnormal, %and
  %cmp = fcmp oeq half %x, 0xH0000
  %spec.select = or i1 %cmp, %and1
  ret i1 %spec.select
}

define i1 @isnormal_uge_or_zero_oeq(half %x) #0 {
; CHECK-LABEL: @isnormal_uge_or_zero_oeq(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[OR:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 879)
; CHECK-NEXT:    ret i1 [[OR]]
;
entry:
  %fabs = tail call half @llvm.fabs.f16(half %x)
  %is.normal = fcmp uge half %fabs, 0xH0400
  %is.zero = fcmp oeq half %x, 0xH0000
  %or = or i1 %is.normal, %is.zero
  ret i1 %or
}

; --------------------------------------------------------------------
; smallest_normal check part of isnormal(x)
; --------------------------------------------------------------------

; -> ord
define i1 @isnormalinf_or_ord(half %x) #0 {
; CHECK-LABEL: @isnormalinf_or_ord(
; CHECK-NEXT:    [[OR:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[OR]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.normal.inf = fcmp oge half %fabs, 0xH0400
  %is.ord = fcmp ord half %x, 0xH0000
  %or = or i1 %is.normal.inf, %is.ord
  ret i1 %or
}

; -> ord
define i1 @ord_or_isnormalinf(half %x) #0 {
; CHECK-LABEL: @ord_or_isnormalinf(
; CHECK-NEXT:    [[OR:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[OR]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.normal.inf = fcmp oge half %fabs, 0xH0400
  %is.ord = fcmp ord half %x, 0xH0000
  %or = or i1 %is.ord, %is.normal.inf
  ret i1 %or
}

; No fabs
; -> iszero
define i1 @une_or_oge_smallest_normal(half %x) #0 {
; CHECK-LABEL: @une_or_oge_smallest_normal(
; CHECK-NEXT:    [[OR:%.*]] = fcmp une half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[OR]]
;
  %is.normal.inf = fcmp oge half %x, 0xH0400
  %is.une = fcmp une half %x, 0xH0000
  %or = or i1 %is.une, %is.normal.inf
  ret i1 %or
}

; -> normal | inf
define i1 @isnormalinf_or_inf(half %x) #0 {
; CHECK-LABEL: @isnormalinf_or_inf(
; CHECK-NEXT:    [[OR:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 780)
; CHECK-NEXT:    ret i1 [[OR]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.normal.inf = fcmp oge half %fabs, 0xH0400
  %is.inf = fcmp oeq half %fabs, 0xH7C00
  %or = or i1 %is.normal.inf, %is.inf
  ret i1 %or
}

; -> pinf | pnormal
define i1 @posisnormalinf_or_posinf(half %x) #0 {
; CHECK-LABEL: @posisnormalinf_or_posinf(
; CHECK-NEXT:    [[OR:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 772)
; CHECK-NEXT:    ret i1 [[OR]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.pos.normal.inf = fcmp oge half %x, 0xH0400
  %is.inf = fcmp oeq half %fabs, 0xH7C00
  %or = or i1 %is.pos.normal.inf, %is.inf
  ret i1 %or
}

; -> normal | inf
define i1 @isnormalinf_or_posinf(half %x) #0 {
; CHECK-LABEL: @isnormalinf_or_posinf(
; CHECK-NEXT:    [[OR:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 780)
; CHECK-NEXT:    ret i1 [[OR]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.normal.inf = fcmp oge half %fabs, 0xH0400
  %is.pos.inf = fcmp oeq half %x, 0xH7C00
  %or = or i1 %is.normal.inf, %is.pos.inf
  ret i1 %or
}

; -> pinf|ninf
define i1 @isnormalinf_and_inf(half %x) #0 {
; CHECK-LABEL: @isnormalinf_and_inf(
; CHECK-NEXT:    [[TMP1:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[AND:%.*]] = fcmp oeq half [[TMP1]], 0xH7C00
; CHECK-NEXT:    ret i1 [[AND]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.normal.inf = fcmp oge half %fabs, 0xH0400
  %is.inf = fcmp oeq half %fabs, 0xH7C00
  %and = and i1 %is.normal.inf, %is.inf
  ret i1 %and
}

; -> pinf
define i1 @posisnormalinf_and_posinf(half %x) #0 {
; CHECK-LABEL: @posisnormalinf_and_posinf(
; CHECK-NEXT:    [[AND:%.*]] = fcmp oeq half [[X:%.*]], 0xH7C00
; CHECK-NEXT:    ret i1 [[AND]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.pos.normal.inf = fcmp oge half %x, 0xH0400
  %is.inf = fcmp oeq half %fabs, 0xH7C00
  %and = and i1 %is.pos.normal.inf, %is.inf
  ret i1 %and
}

; -> pinf
define i1 @isnormalinf_and_posinf(half %x) #0 {
; CHECK-LABEL: @isnormalinf_and_posinf(
; CHECK-NEXT:    [[AND:%.*]] = fcmp oeq half [[X:%.*]], 0xH7C00
; CHECK-NEXT:    ret i1 [[AND]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.normal.inf = fcmp oge half %fabs, 0xH0400
  %is.pos.inf = fcmp oeq half %x, 0xH7C00
  %and = and i1 %is.normal.inf, %is.pos.inf
  ret i1 %and
}

; --------------------------------------------------------------------
; smallest_normal check part of isnormal(x) with inverted compare
; --------------------------------------------------------------------

; -> true
define i1 @not_isnormalinf_or_ord(half %x) #0 {
; CHECK-LABEL: @not_isnormalinf_or_ord(
; CHECK-NEXT:    ret i1 true
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %not.is.normal.inf = fcmp ult half %fabs, 0xH0400
  %is.ord = fcmp ord half %x, 0xH0000
  %or = or i1 %not.is.normal.inf, %is.ord
  ret i1 %or
}

; -> subnormal | zero
define i1 @not_isnormalinf_and_ord(half %x) #0 {
; CHECK-LABEL: @not_isnormalinf_and_ord(
; CHECK-NEXT:    [[AND:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 240)
; CHECK-NEXT:    ret i1 [[AND]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %not.is.normal.inf = fcmp ult half %fabs, 0xH0400
  %is.ord = fcmp ord half %x, 0xH0000
  %and = and i1 %not.is.normal.inf, %is.ord
  ret i1 %and
}

; -> ~ninf
define i1 @not_isnormalinf_or_inf(half %x) #0 {
; CHECK-LABEL: @not_isnormalinf_or_inf(
; CHECK-NEXT:    [[TMP1:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[OR:%.*]] = fcmp une half [[TMP1]], 0xH7C00
; CHECK-NEXT:    ret i1 [[OR]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %not.is.normal.inf = fcmp ult half %fabs, 0xH0400
  %is.inf = fcmp olt half %fabs, 0xH7C00
  %or = or i1 %not.is.normal.inf, %is.inf
  ret i1 %or
}

; -> subnormal | zero | nan
define i1 @not_isnormalinf_or_uno(half %x) #0 {
; CHECK-LABEL: @not_isnormalinf_or_uno(
; CHECK-NEXT:    [[OR:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 243)
; CHECK-NEXT:    ret i1 [[OR]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %not.is.normal.inf = fcmp ult half %fabs, 0xH0400
  %is.uno = fcmp uno half %fabs, 0.0
  %or = or i1 %not.is.normal.inf, %is.uno
  ret i1 %or
}

; -> subnormal | zero | nan
define i1 @not_isnormalinf_or_uno_nofabs(half %x) #0 {
; CHECK-LABEL: @not_isnormalinf_or_uno_nofabs(
; CHECK-NEXT:    [[OR:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 243)
; CHECK-NEXT:    ret i1 [[OR]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %not.is.normal.inf = fcmp ult half %fabs, 0xH0400
  %is.uno = fcmp uno half %x, 0.0
  %or = or i1 %not.is.normal.inf, %is.uno
  ret i1 %or
}

; -> ~pnormal
define i1 @not_negisnormalinf_or_inf(half %x) #0 {
; CHECK-LABEL: @not_negisnormalinf_or_inf(
; CHECK-NEXT:    [[OR:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 767)
; CHECK-NEXT:    ret i1 [[OR]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %not.is.neg.normal.inf = fcmp ult half %x, 0xH0400
  %is.inf = fcmp oeq half %fabs, 0xH7C00
  %or = or i1 %not.is.neg.normal.inf, %is.inf
  ret i1 %or
}

; -> ~pnormal
define i1 @not_negisnormalinf_or_posinf(half %x) #0 {
; CHECK-LABEL: @not_negisnormalinf_or_posinf(
; CHECK-NEXT:    [[OR:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 767)
; CHECK-NEXT:    ret i1 [[OR]]
;
  %not.is.pos.normal.inf = fcmp ult half %x, 0xH0400
  %is.inf = fcmp oeq half %x, 0xH7C00
  %or = or i1 %not.is.pos.normal.inf, %is.inf
  ret i1 %or
}

; -> ninf | nnormal
define i1 @not_isposnormalinf_and_isnormalinf(half %x) #0 {
; CHECK-LABEL: @not_isposnormalinf_and_isnormalinf(
; CHECK-NEXT:    [[AND:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 12)
; CHECK-NEXT:    ret i1 [[AND]]
;
  %not.is.pos.normal.inf = fcmp ult half %x, 0xH0400
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.normal.inf = fcmp oge half %fabs, 0xH0400
  %and = and i1 %not.is.pos.normal.inf, %is.normal.inf
  ret i1 %and
}

; -> ord
define i1 @olt_smallest_normal_or_ord(half %x) #0 {
; CHECK-LABEL: @olt_smallest_normal_or_ord(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %ord = fcmp ord half %x, 0.0
  %cmp.smallest.normal = fcmp olt half %x, 0xH0400
  %class = or i1 %cmp.smallest.normal, %ord
  ret i1 %class
}

; -> ~pinf
define i1 @olt_smallest_normal_or_uno(half %x) #0 {
; CHECK-LABEL: @olt_smallest_normal_or_uno(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 255)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %uno = fcmp uno half %x, 0.0
  %cmp.smallest.normal = fcmp olt half %x, 0xH0400
  %class = or i1 %cmp.smallest.normal, %uno
  ret i1 %class
}

define i1 @olt_smallest_normal_or_finite(half %x) #0 {
; CHECK-LABEL: @olt_smallest_normal_or_finite(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp one half [[X:%.*]], 0xH7C00
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.finite = fcmp olt half %fabs, 0xH7C00
  %cmp.smallest.normal = fcmp olt half %x, 0xH0400
  %class = or i1 %cmp.smallest.normal, %is.finite
  ret i1 %class
}

define i1 @uge_smallest_normal_or_ord(half %x) #0 {
; CHECK-LABEL: @uge_smallest_normal_or_ord(
; CHECK-NEXT:    ret i1 true
;
  %ord = fcmp ord half %x, 0.0
  %cmp.smallest.normal = fcmp uge half %x, 0xH0400
  %class = or i1 %cmp.smallest.normal, %ord
  ret i1 %class
}

; -> nan | pnormal | pinf
define i1 @uge_smallest_normal_or_uno(half %x) #0 {
; CHECK-LABEL: @uge_smallest_normal_or_uno(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 771)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %uno = fcmp uno half %x, 0.0
  %cmp.smallest.normal = fcmp uge half %x, 0xH0400
  %class = or i1 %cmp.smallest.normal, %uno
  ret i1 %class
}

; -> uno
define i1 @uge_smallest_normal_and_uno(half %x) #0 {
; CHECK-LABEL: @uge_smallest_normal_and_uno(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp uno half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %uno = fcmp uno half %x, 0.0
  %cmp.smallest.normal = fcmp uge half %x, 0xH0400
  %class = and i1 %cmp.smallest.normal, %uno
  ret i1 %class
}

; -> true
define i1 @olt_infinity_or_finite(half %x) #0 {
; CHECK-LABEL: @olt_infinity_or_finite(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp one half [[X:%.*]], 0xH7C00
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %lt.infinity = fcmp olt half %x, 0xH7C00
  %cmp.smallest.normal = fcmp olt half %x, 0xH0400
  %class = or i1 %cmp.smallest.normal, %lt.infinity
  ret i1 %class
}

; -> zero|subnormal|normal
define i1 @olt_infinity_and_finite(half %x) #0 { ; bustttedddd
; CHECK-LABEL: @olt_infinity_and_finite(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 252)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %lt.infinity = fcmp olt half %x, 0xH7C00
  %cmp.smallest.normal = fcmp olt half %x, 0xH0400
  %class = and i1 %cmp.smallest.normal, %lt.infinity
  ret i1 %class
}

; -> ord
define i1 @olt_infinity_or_ord(half %x) #0 {
; CHECK-LABEL: @olt_infinity_or_ord(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %lt.infinity = fcmp olt half %x, 0xH7C00
  %ord = fcmp ord half %x, 0xH0400
  %class = or i1 %lt.infinity, %ord
  ret i1 %class
}

; -> ~posinf
define i1 @olt_infinity_or_uno(half %x) #0 {
; CHECK-LABEL: @olt_infinity_or_uno(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp une half [[X:%.*]], 0xH7C00
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %lt.infinity = fcmp olt half %x, 0xH7C00
  %uno = fcmp uno half %x, 0xH0400
  %class = or i1 %lt.infinity, %uno
  ret i1 %class
}

define i1 @olt_infinity_or_subnormal(half %x) #0 {
; CHECK-LABEL: @olt_infinity_or_subnormal(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp one half [[X:%.*]], 0xH7C00
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %lt.infinity = fcmp olt half %x, 0xH7C00
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.subnormal = fcmp olt half %fabs, 0xH0400
  %class = or i1 %lt.infinity, %is.subnormal
  ret i1 %class
}

define i1 @olt_infinity_and_subnormal(half %x) #0 {
; CHECK-LABEL: @olt_infinity_and_subnormal(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 240)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %lt.infinity = fcmp olt half %x, 0xH7C00
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.subnormal = fcmp olt half %fabs, 0xH0400
  %class = and i1 %lt.infinity, %is.subnormal
  ret i1 %class
}

define i1 @olt_infinity_and_not_subnormal(half %x) #0 {
; CHECK-LABEL: @olt_infinity_and_not_subnormal(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 268)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %lt.infinity = fcmp olt half %x, 0xH7C00
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.subnormal = fcmp olt half %fabs, 0xH0400
  %not.subnormal = xor i1 %is.subnormal, true
  %class = and i1 %lt.infinity, %not.subnormal
  ret i1 %class
}

; -> ninf
define i1 @olt_infinity_and_ueq_inf(half %x) #0 {
; CHECK-LABEL: @olt_infinity_and_ueq_inf(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp oeq half [[X:%.*]], 0xHFC00
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %lt.infinity = fcmp olt half %x, 0xH7C00
  %fabs = call half @llvm.fabs.f16(half %x)
  %eq.inf = fcmp ueq half %fabs, 0xH7C00
  %class = and i1 %lt.infinity, %eq.inf
  ret i1 %class
}

; -> true
define i1 @olt_infinity_or_ueq_inf(half %x) #0 {
; CHECK-LABEL: @olt_infinity_or_ueq_inf(
; CHECK-NEXT:    ret i1 true
;
  %lt.infinity = fcmp olt half %x, 0xH7C00
  %eq.inf = fcmp ueq half %x, 0xH7C00
  %class = or i1 %lt.infinity, %eq.inf
  ret i1 %class
}

; -> pnormal
define i1 @olt_smallest_normal_or_ueq_inf(half %x) #0 {
; CHECK-LABEL: @olt_smallest_normal_or_ueq_inf(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 767)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %lt.normal = fcmp olt half %x, 0xH0400
  %eq.inf = fcmp ueq half %x, 0xH7C00
  %class = or i1 %lt.normal, %eq.inf
  ret i1 %class
}

; -> ~pinf
define i1 @olt_smallest_normal_or_une_inf(half %x) #0 {
; CHECK-LABEL: @olt_smallest_normal_or_une_inf(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp une half [[X:%.*]], 0xH7C00
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %lt.normal = fcmp olt half %x, 0xH0400
  %eq.inf = fcmp une half %x, 0xH7C00
  %class = or i1 %lt.normal, %eq.inf
  ret i1 %class
}

; -> ninf | nnormal | subnormal | zero
define i1 @olt_smallest_normal_and_une_inf(half %x) #0 {
; CHECK-LABEL: @olt_smallest_normal_and_une_inf(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 252)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %lt.normal = fcmp olt half %x, 0xH0400
  %eq.inf = fcmp une half %x, 0xH7C00
  %class = and i1 %lt.normal, %eq.inf
  ret i1 %class
}

define i1 @olt_smallest_normal_and_une_inf_or_oeq_smallest_normal(half %x) #0 {
; CHECK-LABEL: @olt_smallest_normal_and_une_inf_or_oeq_smallest_normal(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 252)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %lt.normal = fcmp olt half %x, 0xH0400
  %eq.inf = fcmp une half %x, 0xH7C00
  %class = and i1 %lt.normal, %eq.inf
  %eq.normal = fcmp oeq half %x, 0xH0400
  %eq.largest.normal = or i1 %eq.normal, %class
  ret i1 %class
}

define i1 @olt_smallest_normal_and_une_inf_or_one_smallest_normal(half %x) #0 {
; CHECK-LABEL: @olt_smallest_normal_and_une_inf_or_one_smallest_normal(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 252)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %lt.normal = fcmp olt half %x, 0xH0400
  %eq.inf = fcmp une half %x, 0xH7C00
  %class = and i1 %lt.normal, %eq.inf
  %ne.normal = fcmp one half %x, 0xH0400
  %eq.largest.normal = or i1 %ne.normal, %class
  ret i1 %class
}

define i1 @oge_fabs_eq_inf_and_ord(half %x) #0 {
; CHECK-LABEL: @oge_fabs_eq_inf_and_ord(
; CHECK-NEXT:    [[TMP1:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[AND:%.*]] = fcmp oeq half [[TMP1]], 0xH7C00
; CHECK-NEXT:    ret i1 [[AND]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %oge.fabs.inf = fcmp oge half %fabs, 0xH7C00
  %ord = fcmp ord half %x, 0xH0000
  %and = and i1 %oge.fabs.inf, %ord
  ret i1 %and
}

define i1 @oge_eq_inf_and_ord(half %x) #0 {
; CHECK-LABEL: @oge_eq_inf_and_ord(
; CHECK-NEXT:    [[AND:%.*]] = fcmp oeq half [[X:%.*]], 0xH7C00
; CHECK-NEXT:    ret i1 [[AND]]
;
  %oge.fabs.inf = fcmp oge half %x, 0xH7C00
  %ord = fcmp ord half %x, 0xH0000
  %and = and i1 %oge.fabs.inf, %ord
  ret i1 %and
}

define i1 @oge_fabs_eq_inf_or_uno(half %x) #0 {
; CHECK-LABEL: @oge_fabs_eq_inf_or_uno(
; CHECK-NEXT:    [[TMP1:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[OR:%.*]] = fcmp ueq half [[TMP1]], 0xH7C00
; CHECK-NEXT:    ret i1 [[OR]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %oge.fabs.inf = fcmp oge half %fabs, 0xH7C00
  %uno = fcmp uno half %x, 0xH0000
  %or = or i1 %oge.fabs.inf, %uno
  ret i1 %or
}

define i1 @oge_eq_inf_or_uno(half %x) #0 {
; CHECK-LABEL: @oge_eq_inf_or_uno(
; CHECK-NEXT:    [[OR:%.*]] = fcmp ueq half [[X:%.*]], 0xH7C00
; CHECK-NEXT:    ret i1 [[OR]]
;
  %oge.fabs.inf = fcmp oge half %x, 0xH7C00
  %uno = fcmp uno half %x, 0xH0000
  %or = or i1 %oge.fabs.inf, %uno
  ret i1 %or
}

define i1 @ult_fabs_eq_inf_and_ord(half %x) #0 {
; CHECK-LABEL: @ult_fabs_eq_inf_and_ord(
; CHECK-NEXT:    [[FABS:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[AND:%.*]] = fcmp olt half [[FABS]], 0xH7C00
; CHECK-NEXT:    ret i1 [[AND]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %ult.fabs.inf = fcmp ult half %fabs, 0xH7C00
  %ord = fcmp ord half %x, 0xH0000
  %and = and i1 %ult.fabs.inf, %ord
  ret i1 %and
}

define i1 @ult_eq_inf_and_ord(half %x) #0 {
; CHECK-LABEL: @ult_eq_inf_and_ord(
; CHECK-NEXT:    [[AND:%.*]] = fcmp olt half [[X:%.*]], 0xH7C00
; CHECK-NEXT:    ret i1 [[AND]]
;
  %ult.fabs.inf = fcmp ult half %x, 0xH7C00
  %ord = fcmp ord half %x, 0xH0000
  %and = and i1 %ult.fabs.inf, %ord
  ret i1 %and
}

define i1 @ult_fabs_eq_inf_or_uno(half %x) #0 {
; CHECK-LABEL: @ult_fabs_eq_inf_or_uno(
; CHECK-NEXT:    [[TMP1:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[OR:%.*]] = fcmp une half [[TMP1]], 0xH7C00
; CHECK-NEXT:    ret i1 [[OR]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %ult.fabs.inf = fcmp ult half %fabs, 0xH7C00
  %uno = fcmp uno half %x, 0xH0000
  %or = or i1 %ult.fabs.inf, %uno
  ret i1 %or
}

define i1 @ult_eq_inf_or_uno(half %x) #0 {
; CHECK-LABEL: @ult_eq_inf_or_uno(
; CHECK-NEXT:    [[OR:%.*]] = fcmp une half [[X:%.*]], 0xH7C00
; CHECK-NEXT:    ret i1 [[OR]]
;
  %ult.fabs.inf = fcmp ult half %x, 0xH7C00
  %uno = fcmp uno half %x, 0xH0000
  %or = or i1 %ult.fabs.inf, %uno
  ret i1 %or
}


; Can't do anything with this
define i1 @oeq_neginfinity_or_oeq_smallest_normal(half %x) #0 {
; CHECK-LABEL: @oeq_neginfinity_or_oeq_smallest_normal(
; CHECK-NEXT:    [[OEQ_NEG_INFINITY:%.*]] = fcmp oeq half [[X:%.*]], 0xHFC00
; CHECK-NEXT:    [[CMP_SMALLEST_NORMAL:%.*]] = fcmp oeq half [[X]], 0xH0400
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[OEQ_NEG_INFINITY]], [[CMP_SMALLEST_NORMAL]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %oeq.neg.infinity = fcmp oeq half %x, 0xHFC00
  %cmp.smallest.normal = fcmp oeq half %x, 0xH0400
  %class = or i1 %oeq.neg.infinity, %cmp.smallest.normal
  ret i1 %class
}

; -> ninf | fcZero | fcSubnormal
define i1 @oeq_neginfinity_or_olt_smallest_normal(half %x) #0 {
; CHECK-LABEL: @oeq_neginfinity_or_olt_smallest_normal(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 252)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %oeq.neg.infinity = fcmp oeq half %x, 0xHFC00
  %cmp.smallest.normal = fcmp olt half %x, 0xH0400
  %class = or i1 %oeq.neg.infinity, %cmp.smallest.normal
  ret i1 %class
}

; -> ninf
define i1 @oeq_neginfinity_and_olt_smallest_normal(half %x) #0 {
; CHECK-LABEL: @oeq_neginfinity_and_olt_smallest_normal(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp oeq half [[X:%.*]], 0xHFC00
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %oeq.neg.infinity = fcmp oeq half %x, 0xHFC00
  %cmp.smallest.normal = fcmp olt half %x, 0xH0400
  %class = and i1 %oeq.neg.infinity, %cmp.smallest.normal
  ret i1 %class
}

; -> ninf | pnormal | pinf
define i1 @oeq_neginfinity_or_oge_smallest_normal(half %x) #0 {
; CHECK-LABEL: @oeq_neginfinity_or_oge_smallest_normal(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 772)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %oeq.neg.infinity = fcmp oeq half %x, 0xHFC00
  %cmp.smallest.normal = fcmp oge half %x, 0xH0400
  %class = or i1 %oeq.neg.infinity, %cmp.smallest.normal
  ret i1 %class
}

; -> false
define i1 @oeq_neginfinity_and_oge_smallest_normal(half %x) #0 {
; CHECK-LABEL: @oeq_neginfinity_and_oge_smallest_normal(
; CHECK-NEXT:    ret i1 false
;
  %oeq.neg.infinity = fcmp oeq half %x, 0xHFC00
  %cmp.smallest.normal = fcmp oge half %x, 0xH0400
  %class = and i1 %oeq.neg.infinity, %cmp.smallest.normal
  ret i1 %class
}

; -> ord
define i1 @oeq_neginfinity_or_ord(half %x) #0 {
; CHECK-LABEL: @oeq_neginfinity_or_ord(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %oeq.neg.infinity = fcmp oeq half %x, 0xHFC00
  %ord = fcmp ord half %x, 0.0
  %class = or i1 %oeq.neg.infinity, %ord
  ret i1 %class
}

; -> ninf
define i1 @oeq_neginfinity_and_ord(half %x) #0 {
; CHECK-LABEL: @oeq_neginfinity_and_ord(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp oeq half [[X:%.*]], 0xHFC00
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %oeq.neg.infinity = fcmp oeq half %x, 0xHFC00
  %ord = fcmp ord half %x, 0.0
  %class = and i1 %oeq.neg.infinity, %ord
  ret i1 %class
}

; can't do anything with this
define i1 @une_neginfinity_or_oeq_smallest_normal(half %x) #0 {
; CHECK-LABEL: @une_neginfinity_or_oeq_smallest_normal(
; CHECK-NEXT:    [[UNE_NEG_INFINITY:%.*]] = fcmp une half [[X:%.*]], 0xHFC00
; CHECK-NEXT:    [[CMP_SMALLEST_NORMAL:%.*]] = fcmp oeq half [[X]], 0xH0400
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[UNE_NEG_INFINITY]], [[CMP_SMALLEST_NORMAL]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %une.neg.infinity = fcmp une half %x, 0xHFC00
  %cmp.smallest.normal = fcmp oeq half %x, 0xH0400
  %class = or i1 %une.neg.infinity, %cmp.smallest.normal
  ret i1 %class
}

; -> true
define i1 @une_neginfinity_or_ord(half %x) #0 {
; CHECK-LABEL: @une_neginfinity_or_ord(
; CHECK-NEXT:    ret i1 true
;
  %une.neg.infinity = fcmp une half %x, 0xHFC00
  %ord = fcmp ord half %x, 0.0
  %class = or i1 %une.neg.infinity, %ord
  ret i1 %class
}

; -> ~(nan | ninf)
define i1 @une_neginfinity_and_ord(half %x) #0 {
; CHECK-LABEL: @une_neginfinity_and_ord(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp one half [[X:%.*]], 0xHFC00
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %une.neg.infinity = fcmp une half %x, 0xHFC00
  %ord = fcmp ord half %x, 0.0
  %class = and i1 %une.neg.infinity, %ord
  ret i1 %class
}

; -> ord
define i1 @one_neginfinity_or_olt_smallest_normal(half %x) #0 {
; CHECK-LABEL: @one_neginfinity_or_olt_smallest_normal(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %one.neg.infinity = fcmp one half %x, 0xHFC00
  %cmp.smallest.normal = fcmp olt half %x, 0xH0400
  %class = or i1 %one.neg.infinity, %cmp.smallest.normal
  ret i1 %class
}

; -> ~(nan|ninf)
define i1 @one_neginfinity_and_olt_smallest_normal(half %x) #0 {
; CHECK-LABEL: @one_neginfinity_and_olt_smallest_normal(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 248)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %one.neg.infinity = fcmp one half %x, 0xHFC00
  %cmp.smallest.normal = fcmp olt half %x, 0xH0400
  %class = and i1 %one.neg.infinity, %cmp.smallest.normal
  ret i1 %class
}

; -> ~ninf
define i1 @one_neginfinity_or_uno(half %x) #0 {
; CHECK-LABEL: @one_neginfinity_or_uno(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp une half [[X:%.*]], 0xHFC00
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %one.neg.infinity = fcmp one half %x, 0xHFC00
  %uno = fcmp uno half %x, 0.0
  %class = or i1 %one.neg.infinity, %uno
  ret i1 %class
}

; -> ~ninf
define i1 @one_neginfinity_and_ord(half %x) #0 {
; CHECK-LABEL: @one_neginfinity_and_ord(
; CHECK-NEXT:    ret i1 false
;
  %one.neg.infinity = fcmp one half %x, 0xHFC00
  %ord = fcmp uno half %x, 0.0
  %class = and i1 %one.neg.infinity, %ord
  ret i1 %class
}

; -> pnormal|pinf
define i1 @one_neginfinity_and_uge_smallest_normal(half %x) #0 {
; CHECK-LABEL: @one_neginfinity_and_uge_smallest_normal(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 768)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %one.neg.infinity = fcmp one half %x, 0xHFC00
  %cmp.smallest.normal = fcmp uge half %x, 0xH0400
  %class = and i1 %one.neg.infinity, %cmp.smallest.normal
  ret i1 %class
}

; -> ~(pnormal|pinf)
define i1 @ueq_neginfinity_or_olt_smallest_normal(half %x) #0 {
; CHECK-LABEL: @ueq_neginfinity_or_olt_smallest_normal(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 255)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %ueq.neg.infinity = fcmp ueq half %x, 0xHFC00
  %cmp.smallest.normal = fcmp olt half %x, 0xH0400
  %class = or i1 %ueq.neg.infinity, %cmp.smallest.normal
  ret i1 %class
}

; -> ninf
define i1 @ueq_neginfinity_and_olt_smallest_normal(half %x) #0 {
; CHECK-LABEL: @ueq_neginfinity_and_olt_smallest_normal(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp oeq half [[X:%.*]], 0xHFC00
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %ueq.neg.infinity = fcmp ueq half %x, 0xHFC00
  %cmp.smallest.normal = fcmp olt half %x, 0xH0400
  %class = and i1 %ueq.neg.infinity, %cmp.smallest.normal
  ret i1 %class
}

; -> nan|ninf
define i1 @ueq_neginfinity_or_uno(half %x) #0 {
; CHECK-LABEL: @ueq_neginfinity_or_uno(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp ueq half [[X:%.*]], 0xHFC00
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %ueq.neg.infinity = fcmp ueq half %x, 0xHFC00
  %uno = fcmp uno half %x, 0.0
  %class = or i1 %ueq.neg.infinity, %uno
  ret i1 %class
}

; -> nan|ninf
define i1 @ueq_neginfinity_and_ord(half %x) #0 {
; CHECK-LABEL: @ueq_neginfinity_and_ord(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp uno half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %ueq.neg.infinity = fcmp ueq half %x, 0xHFC00
  %ord = fcmp uno half %x, 0.0
  %class = and i1 %ueq.neg.infinity, %ord
  ret i1 %class
}

; -> uno
define i1 @ueq_neginfinity_and_uge_smallest_normal(half %x) #0 {
; CHECK-LABEL: @ueq_neginfinity_and_uge_smallest_normal(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp uno half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %ueq.neg.infinity = fcmp ueq half %x, 0xHFC00
  %cmp.smallest.normal = fcmp uge half %x, 0xH0400
  %class = and i1 %ueq.neg.infinity, %cmp.smallest.normal
  ret i1 %class
}

; -> ord
define i1 @fabs_oeq_neginfinity_or_ord(half %x) #0 {
; CHECK-LABEL: @fabs_oeq_neginfinity_or_ord(
; CHECK-NEXT:    [[ORD:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[ORD]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %fabs.oeq.neg.infinity = fcmp oeq half %fabs, 0xHFC00
  %ord = fcmp ord half %x, 0.0
  %class = or i1 %fabs.oeq.neg.infinity, %ord
  ret i1 %class
}

; -> true
define i1 @fabs_une_neginfinity_or_ord(half %x) #0 {
; CHECK-LABEL: @fabs_une_neginfinity_or_ord(
; CHECK-NEXT:    ret i1 true
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %fabs.une.neg.infinity = fcmp une half %fabs, 0xHFC00
  %ord = fcmp une half %x, 0.0
  %class = or i1 %fabs.une.neg.infinity, %ord
  ret i1 %class
}

; -> une
define i1 @fabs_une_neginfinity_and_ord(half %x) #0 {
; CHECK-LABEL: @fabs_une_neginfinity_and_ord(
; CHECK-NEXT:    [[ORD:%.*]] = fcmp une half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[ORD]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %fabs.une.neg.infinity = fcmp une half %fabs, 0xHFC00
  %ord = fcmp une half %x, 0.0
  %class = and i1 %fabs.une.neg.infinity, %ord
  ret i1 %class
}

; -> false
define i1 @fabs_oeq_neginfinity_and_uge_smallest_normal(half %x) #0 {
; CHECK-LABEL: @fabs_oeq_neginfinity_and_uge_smallest_normal(
; CHECK-NEXT:    ret i1 false
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %fabs.oeq.neg.infinity = fcmp oeq half %fabs, 0xHFC00
  %cmp.smallest.normal = fcmp oeq half %x, 0xH0400
  %class = and i1 %fabs.oeq.neg.infinity, %cmp.smallest.normal
  ret i1 %class
}

; -> false
define i1 @fabs_oeq_neginfinity_or_uge_smallest_normal(half %x) #0 {
; CHECK-LABEL: @fabs_oeq_neginfinity_or_uge_smallest_normal(
; CHECK-NEXT:    [[CMP_SMALLEST_NORMAL:%.*]] = fcmp oeq half [[X:%.*]], 0xH0400
; CHECK-NEXT:    ret i1 [[CMP_SMALLEST_NORMAL]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %fabs.oeq.neg.infinity = fcmp oeq half %fabs, 0xHFC00
  %cmp.smallest.normal = fcmp oeq half %x, 0xH0400
  %class = or i1 %fabs.oeq.neg.infinity, %cmp.smallest.normal
  ret i1 %class
}

;- > ord
define i1 @fabs_oeq_neginfinity_and_ord(half %x) #0 {
; CHECK-LABEL: @fabs_oeq_neginfinity_and_ord(
; CHECK-NEXT:    ret i1 false
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %fabs.oeq.neg.infinity = fcmp oeq half %fabs, 0xHFC00
  %ord = fcmp ord half %x, 0.0
  %class = and i1 %fabs.oeq.neg.infinity, %ord
  ret i1 %class
}

; -> false
define i1 @fabs_ueq_neginfinity_and_olt_smallest_normal(half %x) #0 { ; WRONG
; CHECK-LABEL: @fabs_ueq_neginfinity_and_olt_smallest_normal(
; CHECK-NEXT:    ret i1 false
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %fabs.ueq.neg.infinity = fcmp ueq half %fabs, 0xHFC00
  %cmp.smallest.normal = fcmp olt half %x, 0xH0400
  %class = and i1 %fabs.ueq.neg.infinity, %cmp.smallest.normal
  ret i1 %class
}

; -> pinf|pnormal
define i1 @fabs_one_neginfinity_and_uge_smallest_normal(half %x) #0 {
; CHECK-LABEL: @fabs_one_neginfinity_and_uge_smallest_normal(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 768)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %fabs.one.neg.infinity = fcmp one half %fabs, 0xHFC00
  %cmp.smallest.normal = fcmp uge half %x, 0xH0400
  %class = and i1 %fabs.one.neg.infinity, %cmp.smallest.normal
  ret i1 %class
}

; -> ord
define i1 @fabs_one_neginfinity_or_olt_smallest_normal(half %x) #0 {
; CHECK-LABEL: @fabs_one_neginfinity_or_olt_smallest_normal(
; CHECK-NEXT:    [[CLASS:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %fabs.one.neg.infinity = fcmp one half %fabs, 0xHFC00
  %cmp.smallest.normal = fcmp olt half %x, 0xH0400
  %class = or i1 %fabs.one.neg.infinity, %cmp.smallest.normal
  ret i1 %class
}

; -> ~(zero|subnormal)
define i1 @fabs_ueq_neginfinity_or_fabs_uge_smallest_normal(half %x) #0 {
; CHECK-LABEL: @fabs_ueq_neginfinity_or_fabs_uge_smallest_normal(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 783)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %fabs.oeq.neg.infinity = fcmp ueq half %fabs, 0xHFC00
  %cmp.smallest.normal = fcmp uge half %fabs, 0xH0400
  %class = or i1 %fabs.oeq.neg.infinity, %cmp.smallest.normal
  ret i1 %class
}

; --------------------------------------------------------------------
; Test denormal mode handling with x == 0
; --------------------------------------------------------------------

; Base pattern !isfinite(x) || x == 0.0, with input denormals flushed to 0
define i1 @not_isfinite_or_zero_f16_daz(half %x) #1 {
; CHECK-LABEL: @not_isfinite_or_zero_f16_daz(
; CHECK-NEXT:    [[FABS:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp ueq half [[FABS]], 0xH7C00
; CHECK-NEXT:    [[CMPZERO:%.*]] = fcmp oeq half [[X]], 0xH0000
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMPZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp ueq half %fabs, 0xH7C00
  %cmpzero = fcmp oeq half %x, 0xH0000
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

define <2 x i1> @not_isfinite_or_zero_v2f16_daz(<2 x half> %x) #1 {
; CHECK-LABEL: @not_isfinite_or_zero_v2f16_daz(
; CHECK-NEXT:    [[FABS:%.*]] = call <2 x half> @llvm.fabs.v2f16(<2 x half> [[X:%.*]])
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp ueq <2 x half> [[FABS]], <half 0xH7C00, half 0xH7C00>
; CHECK-NEXT:    [[CMPZERO:%.*]] = fcmp oeq <2 x half> [[X]], zeroinitializer
; CHECK-NEXT:    [[CLASS:%.*]] = or <2 x i1> [[CMPZERO]], [[CMPINF]]
; CHECK-NEXT:    ret <2 x i1> [[CLASS]]
;
  %fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %x)
  %cmpinf = fcmp ueq <2 x half> %fabs, <half 0xH7C00, half 0xH7C00>
  %cmpzero = fcmp oeq <2 x half> %x, zeroinitializer
  %class = or <2 x i1> %cmpzero, %cmpinf
  ret <2 x i1> %class
}

; Base pattern !isfinite(x) || x == 0.0, with unknown input denormal treatment
define i1 @not_isfinite_or_zero_f16_dynamic(half %x) #2 {
; CHECK-LABEL: @not_isfinite_or_zero_f16_dynamic(
; CHECK-NEXT:    [[FABS:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp ueq half [[FABS]], 0xH7C00
; CHECK-NEXT:    [[CMPZERO:%.*]] = fcmp oeq half [[X]], 0xH0000
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMPZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp ueq half %fabs, 0xH7C00
  %cmpzero = fcmp oeq half %x, 0xH0000
  %class = or i1 %cmpzero, %cmpinf
  ret i1 %class
}

define <2 x i1> @not_isfinite_or_zero_v2f16_dynamic(<2 x half> %x) #2 {
; CHECK-LABEL: @not_isfinite_or_zero_v2f16_dynamic(
; CHECK-NEXT:    [[FABS:%.*]] = call <2 x half> @llvm.fabs.v2f16(<2 x half> [[X:%.*]])
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp ueq <2 x half> [[FABS]], <half 0xH7C00, half 0xH7C00>
; CHECK-NEXT:    [[CMPZERO:%.*]] = fcmp oeq <2 x half> [[X]], zeroinitializer
; CHECK-NEXT:    [[CLASS:%.*]] = or <2 x i1> [[CMPZERO]], [[CMPINF]]
; CHECK-NEXT:    ret <2 x i1> [[CLASS]]
;
  %fabs = call <2 x half> @llvm.fabs.v2f16(<2 x half> %x)
  %cmpinf = fcmp ueq <2 x half> %fabs, <half 0xH7C00, half 0xH7C00>
  %cmpzero = fcmp oeq <2 x half> %x, zeroinitializer
  %class = or <2 x i1> %cmpzero, %cmpinf
  ret <2 x i1> %class
}

define i1 @not_zero_and_subnormal_daz(half %x) #1 {
; CHECK-LABEL: @not_zero_and_subnormal_daz(
; CHECK-NEXT:    [[OR:%.*]] = fcmp ord half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[OR]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmp.zero = fcmp one half %fabs, 0.0
  %cmp.smallest.normal = fcmp olt half %fabs, 0xH0400
  %or = or i1 %cmp.smallest.normal, %cmp.zero
  ret i1 %or
}

define i1 @not_zero_and_subnormal_dynamic(half %x) #2 {
; CHECK-LABEL: @not_zero_and_subnormal_dynamic(
; CHECK-NEXT:    [[FABS:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[CMP_ZERO:%.*]] = fcmp one half [[X]], 0xH0000
; CHECK-NEXT:    [[CMP_SMALLEST_NORMAL:%.*]] = fcmp olt half [[FABS]], 0xH0400
; CHECK-NEXT:    [[OR:%.*]] = or i1 [[CMP_SMALLEST_NORMAL]], [[CMP_ZERO]]
; CHECK-NEXT:    ret i1 [[OR]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %cmp.zero = fcmp one half %fabs, 0.0
  %cmp.smallest.normal = fcmp olt half %fabs, 0xH0400
  %or = or i1 %cmp.smallest.normal, %cmp.zero
  ret i1 %or
}

; TODO: This could fold to just fcmp olt half %fabs, 0xH0400
define i1 @subnormal_or_zero_ieee(half %x) #0 {
; CHECK-LABEL: @subnormal_or_zero_ieee(
; CHECK-NEXT:    [[AND:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 240)
; CHECK-NEXT:    ret i1 [[AND]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.subnormal = fcmp olt half %fabs, 0xH0400
  %is.zero = fcmp oeq half %x, 0xH0000
  %and = or i1 %is.subnormal, %is.zero
  ret i1 %and
}

define i1 @subnormal_or_zero_daz(half %x) #1 {
; CHECK-LABEL: @subnormal_or_zero_daz(
; CHECK-NEXT:    [[AND:%.*]] = fcmp oeq half [[X:%.*]], 0xH0000
; CHECK-NEXT:    ret i1 [[AND]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.subnormal = fcmp olt half %fabs, 0xH0400
  %is.zero = fcmp oeq half %x, 0xH0000
  %and = or i1 %is.subnormal, %is.zero
  ret i1 %and
}

define i1 @subnormal_or_zero_dynamic(half %x) #2 {
; CHECK-LABEL: @subnormal_or_zero_dynamic(
; CHECK-NEXT:    [[FABS:%.*]] = call half @llvm.fabs.f16(half [[X:%.*]])
; CHECK-NEXT:    [[IS_SUBNORMAL:%.*]] = fcmp olt half [[FABS]], 0xH0400
; CHECK-NEXT:    [[IS_ZERO:%.*]] = fcmp oeq half [[X]], 0xH0000
; CHECK-NEXT:    [[AND:%.*]] = or i1 [[IS_SUBNORMAL]], [[IS_ZERO]]
; CHECK-NEXT:    ret i1 [[AND]]
;
  %fabs = call half @llvm.fabs.f16(half %x)
  %is.subnormal = fcmp olt half %fabs, 0xH0400
  %is.zero = fcmp oeq half %x, 0xH0000
  %and = or i1 %is.subnormal, %is.zero
  ret i1 %and
}

define i1 @issubnormal_or_inf_nnan_logical_select(half %x) {
; CHECK-LABEL: @issubnormal_or_inf_nnan_logical_select(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 756)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call nnan half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp nnan oeq half %fabs, 0xH7C00
  %cmp.smallest.normal = fcmp nnan olt half %fabs, 0xH0400
  %class = select i1 %cmpinf, i1 true, i1 %cmp.smallest.normal
  ret i1 %class
}

define i1 @issubnormal_and_ninf_nnan_logical_select(half %x) {
; CHECK-LABEL: @issubnormal_and_ninf_nnan_logical_select(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 240)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %fabs = call nnan half @llvm.fabs.f16(half %x)
  %cmpinf = fcmp nnan one half %fabs, 0xH7C00
  %cmp.smallest.normal = fcmp nnan olt half %fabs, 0xH0400
  %class = select i1 %cmpinf, i1 %cmp.smallest.normal, i1 false
  ret i1 %class
}

define i1 @fcmp_ueq_neginf_or_oge_zero_f16(half %x) {
; CHECK-LABEL: @fcmp_ueq_neginf_or_oge_zero_f16(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 999)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp ueq half %x, 0xHFC00
  %cmp.oge.zero = fcmp oge half %x, 0xH0000
  %class = or i1 %cmp.oge.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_oeq_neginf_or_oge_zero_f16(half %x) {
; CHECK-LABEL: @fcmp_oeq_neginf_or_oge_zero_f16(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 996)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp oeq half %x, 0xHFC00
  %cmp.oge.zero = fcmp oge half %x, 0xH0000
  %class = or i1 %cmp.oge.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_ueq_neginf_or_oge_zero_f16_daz(half %x) #1 {
; CHECK-LABEL: @fcmp_ueq_neginf_or_oge_zero_f16_daz(
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp ueq half [[X:%.*]], 0xHFC00
; CHECK-NEXT:    [[CMP_OGE_ZERO:%.*]] = fcmp oge half [[X]], 0xH0000
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMP_OGE_ZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp ueq half %x, 0xHFC00
  %cmp.oge.zero = fcmp oge half %x, 0xH0000
  %class = or i1 %cmp.oge.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_oeq_neginf_or_oge_zero_f16_daz(half %x) #1 {
; CHECK-LABEL: @fcmp_oeq_neginf_or_oge_zero_f16_daz(
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp oeq half [[X:%.*]], 0xHFC00
; CHECK-NEXT:    [[CMP_OGE_ZERO:%.*]] = fcmp oge half [[X]], 0xH0000
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMP_OGE_ZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp oeq half %x, 0xHFC00
  %cmp.oge.zero = fcmp oge half %x, 0xH0000
  %class = or i1 %cmp.oge.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_oeq_neginf_or_ogt_zero_f16(half %x) {
; CHECK-LABEL: @fcmp_oeq_neginf_or_ogt_zero_f16(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 900)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp oeq half %x, 0xHFC00
  %cmp.ogt.zero = fcmp ogt half %x, 0xH0000
  %class = or i1 %cmp.ogt.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_ueq_neginf_or_ogt_zero_f16(half %x) {
; CHECK-LABEL: @fcmp_ueq_neginf_or_ogt_zero_f16(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 903)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp ueq half %x, 0xHFC00
  %cmp.ogt.zero = fcmp ogt half %x, 0xH0000
  %class = or i1 %cmp.ogt.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_ueq_neginf_or_ogt_zero_f16_daz(half %x) #1 {
; CHECK-LABEL: @fcmp_ueq_neginf_or_ogt_zero_f16_daz(
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp ueq half [[X:%.*]], 0xHFC00
; CHECK-NEXT:    [[CMP_OGT_ZERO:%.*]] = fcmp ogt half [[X]], 0xH0000
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMP_OGT_ZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp ueq half %x, 0xHFC00
  %cmp.ogt.zero = fcmp ogt half %x, 0xH0000
  %class = or i1 %cmp.ogt.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_oeq_neginf_or_ogt_zero_f16_daz(half %x) #1 {
; CHECK-LABEL: @fcmp_oeq_neginf_or_ogt_zero_f16_daz(
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp oeq half [[X:%.*]], 0xHFC00
; CHECK-NEXT:    [[CMP_OGT_ZERO:%.*]] = fcmp ogt half [[X]], 0xH0000
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMP_OGT_ZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp oeq half %x, 0xHFC00
  %cmp.ogt.zero = fcmp ogt half %x, 0xH0000
  %class = or i1 %cmp.ogt.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_oeq_neginf_or_ugt_zero_f16(half %x) {
; CHECK-LABEL: @fcmp_oeq_neginf_or_ugt_zero_f16(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 903)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp oeq half %x, 0xHFC00
  %cmp.ugt.zero = fcmp ugt half %x, 0xH0000
  %class = or i1 %cmp.ugt.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_ueq_neginf_or_ugt_zero_f16_daz(half %x) #1 {
; CHECK-LABEL: @fcmp_ueq_neginf_or_ugt_zero_f16_daz(
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp ueq half [[X:%.*]], 0xHFC00
; CHECK-NEXT:    [[CMP_UGT_ZERO:%.*]] = fcmp ugt half [[X]], 0xH0000
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMP_UGT_ZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp ueq half %x, 0xHFC00
  %cmp.ugt.zero = fcmp ugt half %x, 0xH0000
  %class = or i1 %cmp.ugt.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_oeq_neginf_or_ugt_zero_f16_daz(half %x) #1 {
; CHECK-LABEL: @fcmp_oeq_neginf_or_ugt_zero_f16_daz(
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp oeq half [[X:%.*]], 0xHFC00
; CHECK-NEXT:    [[CMP_UGT_ZERO:%.*]] = fcmp ugt half [[X]], 0xH0000
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMP_UGT_ZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp oeq half %x, 0xHFC00
  %cmp.ugt.zero = fcmp ugt half %x, 0xH0000
  %class = or i1 %cmp.ugt.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_ueq_posinf_or_ole_zero_f16(half %x) {
; CHECK-LABEL: @fcmp_ueq_posinf_or_ole_zero_f16(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 639)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp ueq half %x, 0xH7C00
  %cmp.ole.zero = fcmp ole half %x, 0xH0000
  %class = or i1 %cmp.ole.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_oeq_posinf_or_ole_zero_f16(half %x) {
; CHECK-LABEL: @fcmp_oeq_posinf_or_ole_zero_f16(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 636)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp oeq half %x, 0xH7C00
  %cmp.ole.zero = fcmp ole half %x, 0xH0000
  %class = or i1 %cmp.ole.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_ueq_posinf_or_ole_zero_f16_daz(half %x) #1 {
; CHECK-LABEL: @fcmp_ueq_posinf_or_ole_zero_f16_daz(
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp ueq half [[X:%.*]], 0xH7C00
; CHECK-NEXT:    [[CMP_OLE_ZERO:%.*]] = fcmp ole half [[X]], 0xH0000
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMP_OLE_ZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp ueq half %x, 0xH7C00
  %cmp.ole.zero = fcmp ole half %x, 0xH0000
  %class = or i1 %cmp.ole.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_oeq_posinf_or_ole_zero_f16_daz(half %x) #1 {
; CHECK-LABEL: @fcmp_oeq_posinf_or_ole_zero_f16_daz(
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp oeq half [[X:%.*]], 0xH7C00
; CHECK-NEXT:    [[CMP_OLE_ZERO:%.*]] = fcmp ole half [[X]], 0xH0000
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMP_OLE_ZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp oeq half %x, 0xH7C00
  %cmp.ole.zero = fcmp ole half %x, 0xH0000
  %class = or i1 %cmp.ole.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_oeq_posinf_or_olt_zero_f16(half %x) {
; CHECK-LABEL: @fcmp_oeq_posinf_or_olt_zero_f16(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 540)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp oeq half %x, 0xH7C00
  %cmp.olt.zero = fcmp olt half %x, 0xH0000
  %class = or i1 %cmp.olt.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_oeq_posinf_or_olt_zero_f16_daz(half %x) #1 {
; CHECK-LABEL: @fcmp_oeq_posinf_or_olt_zero_f16_daz(
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp oeq half [[X:%.*]], 0xH7C00
; CHECK-NEXT:    [[CMP_OLT_ZERO:%.*]] = fcmp olt half [[X]], 0xH0000
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMP_OLT_ZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp oeq half %x, 0xH7C00
  %cmp.olt.zero = fcmp olt half %x, 0xH0000
  %class = or i1 %cmp.olt.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_ueq_posinf_or_ult_zero_f16(half %x) {
; CHECK-LABEL: @fcmp_ueq_posinf_or_ult_zero_f16(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 543)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp ueq half %x, 0xH7C00
  %cmp.ult.zero = fcmp ult half %x, 0xH0000
  %class = or i1 %cmp.ult.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_oeq_posinf_or_ult_zero_f16(half %x) {
; CHECK-LABEL: @fcmp_oeq_posinf_or_ult_zero_f16(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 543)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp oeq half %x, 0xH7C00
  %cmp.ult.zero = fcmp ult half %x, 0xH0000
  %class = or i1 %cmp.ult.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_ueq_posinf_or_ult_zero_f16_daz(half %x) #1 {
; CHECK-LABEL: @fcmp_ueq_posinf_or_ult_zero_f16_daz(
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp ueq half [[X:%.*]], 0xH7C00
; CHECK-NEXT:    [[CMP_ULT_ZERO:%.*]] = fcmp ult half [[X]], 0xH0000
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMP_ULT_ZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp ueq half %x, 0xH7C00
  %cmp.ult.zero = fcmp ult half %x, 0xH0000
  %class = or i1 %cmp.ult.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_oeq_posinf_or_ult_zero_f16_daz(half %x) #1 {
; CHECK-LABEL: @fcmp_oeq_posinf_or_ult_zero_f16_daz(
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp oeq half [[X:%.*]], 0xH7C00
; CHECK-NEXT:    [[CMP_ULT_ZERO:%.*]] = fcmp ult half [[X]], 0xH0000
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMP_ULT_ZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp oeq half %x, 0xH7C00
  %cmp.ult.zero = fcmp ult half %x, 0xH0000
  %class = or i1 %cmp.ult.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_ueq_posinf_or_ule_zero_f16(half %x) {
; CHECK-LABEL: @fcmp_ueq_posinf_or_ule_zero_f16(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 639)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp ueq half %x, 0xH7C00
  %cmp.ule.zero = fcmp ule half %x, 0xH0000
  %class = or i1 %cmp.ule.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_ueq_posinf_or_ule_zero_f16_daz(half %x) #1 {
; CHECK-LABEL: @fcmp_ueq_posinf_or_ule_zero_f16_daz(
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp ueq half [[X:%.*]], 0xH7C00
; CHECK-NEXT:    [[CMP_ULE_ZERO:%.*]] = fcmp ule half [[X]], 0xH0000
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMP_ULE_ZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp ueq half %x, 0xH7C00
  %cmp.ule.zero = fcmp ule half %x, 0xH0000
  %class = or i1 %cmp.ule.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_oeq_posinf_or_ule_zero_f16_daz(half %x) #1 {
; CHECK-LABEL: @fcmp_oeq_posinf_or_ule_zero_f16_daz(
; CHECK-NEXT:    [[CMPINF:%.*]] = fcmp oeq half [[X:%.*]], 0xH7C00
; CHECK-NEXT:    [[CMP_ULE_ZERO:%.*]] = fcmp ule half [[X]], 0xH0000
; CHECK-NEXT:    [[CLASS:%.*]] = or i1 [[CMP_ULE_ZERO]], [[CMPINF]]
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp oeq half %x, 0xH7C00
  %cmp.ule.zero = fcmp ule half %x, 0xH0000
  %class = or i1 %cmp.ule.zero, %cmpinf
  ret i1 %class
}

define i1 @fcmp_ueq_posinf_or_olt_zero_f16(half %x) {
; CHECK-LABEL: @fcmp_ueq_posinf_or_olt_zero_f16(
; CHECK-NEXT:    [[CLASS:%.*]] = call i1 @llvm.is.fpclass.f16(half [[X:%.*]], i32 543)
; CHECK-NEXT:    ret i1 [[CLASS]]
;
  %cmpinf = fcmp ueq half %x, 0xH7C00
  %cmp.olt.zero = fcmp olt half %x, 0xH0000
  %class = or i1 %cmp.olt.zero, %cmpinf
  ret i1 %class
}

declare half @llvm.fabs.f16(half) #0
declare half @llvm.canonicalize.f16(half) #0
declare <2 x half> @llvm.fabs.v2f16(<2 x half>) #0

attributes #0 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #1 = { "denormal-fp-math"="ieee,preserve-sign" }
attributes #2 = { "denormal-fp-math"="ieee,dynamic" }