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121
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1 ; RUN: llc -march=amdgcn -mcpu=gfx900 -mattr=-fp32-denormals -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX89,GFX9,GFX9-F32FLUSH %s
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2 ; RUN: llc -march=amdgcn -mcpu=gfx900 -mattr=+fp32-denormals -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX89,GFX9,GFX9-F32DENORM %s
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3 ; RUN: llc -march=amdgcn -mcpu=gfx803 -mattr=-fp32-denormals -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX89,VI,VI-F32FLUSH %s
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4 ; RUN: llc -march=amdgcn -mcpu=gfx803 -mattr=+fp32-denormals -verify-machineinstrs < %s | FileCheck -enable-var-scope -check-prefixes=GCN,GFX89,VI,VI-F32DENORM %s
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5
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6 ; fold (fadd (fpext (fmul x, y)), z) -> (fma (fpext x), (fpext y), z)
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7
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8 ; GCN-LABEL: {{^}}fadd_fpext_fmul_f16_to_f32:
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9 ; GCN: s_waitcnt
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10 ; GFX9-F32FLUSH-NEXT: v_mad_mix_f32 v0, v0, v1, v2 op_sel_hi:[1,1,0]{{$}}
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11 ; GFX9-F32FLUSH-NEXT: s_setpc_b64
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12
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13 ; GFX9-F32DENORM-NEXT: v_mul_f16
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14 ; GFX9-F32DENORM-NEXT: v_cvt_f32_f16
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15 ; GFX9-F32DENORM-NEXT: v_add_f32
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16 define float @fadd_fpext_fmul_f16_to_f32(half %x, half %y, float %z) #0 {
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17 entry:
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18 %mul = fmul half %x, %y
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19 %mul.ext = fpext half %mul to float
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20 %add = fadd float %mul.ext, %z
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21 ret float %add
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22 }
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23
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24 ; f16->f64 is not free.
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25 ; GCN-LABEL: {{^}}fadd_fpext_fmul_f16_to_f64:
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26 ; GFX89: v_mul_f16
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27 ; GFX89: v_cvt_f32_f16
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28 ; GFX89: v_cvt_f64_f32
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29 ; GFX89: v_add_f64
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30 define double @fadd_fpext_fmul_f16_to_f64(half %x, half %y, double %z) #0 {
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31 entry:
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32 %mul = fmul half %x, %y
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33 %mul.ext = fpext half %mul to double
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34 %add = fadd double %mul.ext, %z
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35 ret double %add
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36 }
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37
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38 ; f32->f64 is not free.
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39 ; GCN-LABEL: {{^}}fadd_fpext_fmul_f32_to_f64:
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40 ; GCN: v_mul_f32
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41 ; GCN: v_cvt_f64_f32
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42 ; GCN: v_add_f64
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43 define double @fadd_fpext_fmul_f32_to_f64(float %x, float %y, double %z) #0 {
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44 entry:
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45 %mul = fmul float %x, %y
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46 %mul.ext = fpext float %mul to double
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47 %add = fadd double %mul.ext, %z
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48 ret double %add
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49 }
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50
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51 ; fold (fadd x, (fpext (fmul y, z))) -> (fma (fpext y), (fpext z), x)
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52 ; GCN-LABEL: {{^}}fadd_fpext_fmul_f16_to_f32_commute:
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53 ; GCN: s_waitcnt
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54 ; GFX9-F32FLUSH-NEXT: v_mad_mix_f32 v0, v0, v1, v2 op_sel_hi:[1,1,0]{{$}}
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55 ; GFX9-F32FLUSH-NEXT: s_setpc_b64
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56
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57 ; GFX9-F32DENORM-NEXT: v_mul_f16
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58 ; GFX9-F32DENORM-NEXT: v_cvt_f32_f16
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59 ; GFX9-F32DENORM-NEXT: v_add_f32
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60 ; GFX9-F32DENORM-NEXT: s_setpc_b64
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61 define float @fadd_fpext_fmul_f16_to_f32_commute(half %x, half %y, float %z) #0 {
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62 entry:
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63 %mul = fmul half %x, %y
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64 %mul.ext = fpext half %mul to float
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65 %add = fadd float %z, %mul.ext
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66 ret float %add
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67 }
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68
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69 ; fold (fadd (fma x, y, (fpext (fmul u, v))), z)
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70 ; -> (fma x, y, (fma (fpext u), (fpext v), z))
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71
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72 ; GCN-LABEL: {{^}}fadd_muladd_fpext_fmul_f16_to_f32:
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73 ; GCN: s_waitcnt
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74 ; GFX9-F32FLUSH-NEXT: v_mad_mix_f32 v2, v2, v3, v4 op_sel_hi:[1,1,0]
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75 ; GFX9-F32FLUSH-NEXT: v_mac_f32_e32 v2, v0, v1
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76 ; GFX9-F32FLUSH-NEXT: v_mov_b32_e32 v0, v2
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77 ; GFX9-F32FLUSH-NEXT: s_setpc_b64
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78
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79 ; GFX9-F32DENORM-NEXT: v_mul_f16
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80 ; GFX9-F32DENORM-NEXT: v_cvt_f32_f16
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81 ; GFX9-F32DENORM-NEXT: v_fma_f32
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82 ; GFX9-F32DENORM-NEXT: v_add_f32
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83 ; GFX9-F32DENORM-NEXT: s_setpc_b64
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84 define float @fadd_muladd_fpext_fmul_f16_to_f32(float %x, float %y, half %u, half %v, float %z) #0 {
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85 entry:
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86 %mul = fmul half %u, %v
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87 %mul.ext = fpext half %mul to float
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88 %fma = call float @llvm.fmuladd.f32(float %x, float %y, float %mul.ext)
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89 %add = fadd float %fma, %z
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90 ret float %add
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91 }
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92
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93 ; fold (fadd x, (fma y, z, (fpext (fmul u, v)))
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94 ; -> (fma y, z, (fma (fpext u), (fpext v), x))
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95 ; GCN-LABEL: {{^}}fadd_muladd_fpext_fmul_f16_to_f32_commute:
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96 ; GCN: s_waitcnt
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97 ; GFX9-F32FLUSH-NEXT: v_mad_mix_f32 v2, v2, v3, v4 op_sel_hi:[1,1,0]
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98 ; GFX9-F32FLUSH-NEXT: v_mac_f32_e32 v2, v0, v1
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99 ; GFX9-F32FLUSH-NEXT: v_mov_b32_e32 v0, v2
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100 ; GFX9-F32FLUSH-NEXT: s_setpc_b64
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101
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102 ; GFX9-F32DENORM-NEXT: v_mul_f16
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103 ; GFX9-F32DENORM-NEXT: v_cvt_f32_f16
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104 ; GFX9-F32DENORM-NEXT: v_fma_f32
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105 ; GFX9-F32DENORM-NEXT: v_add_f32
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106 ; GFX9-F32DENORM-NEXT: s_setpc_b64
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107 define float @fadd_muladd_fpext_fmul_f16_to_f32_commute(float %x, float %y, half %u, half %v, float %z) #0 {
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108 entry:
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109 %mul = fmul half %u, %v
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110 %mul.ext = fpext half %mul to float
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111 %fma = call float @llvm.fmuladd.f32(float %x, float %y, float %mul.ext)
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112 %add = fadd float %z, %fma
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113 ret float %add
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114 }
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115
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116 ; GCN-LABEL: {{^}}fadd_fmad_fpext_fmul_f16_to_f32:
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117 ; GCN: s_waitcnt
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118 ; GFX9-F32FLUSH-NEXT: v_mad_mix_f32 v2, v2, v3, v4 op_sel_hi:[1,1,0]
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119 ; GFX9-F32FLUSH-NEXT: v_mac_f32_e32 v2, v0, v1
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120 ; GFX9-F32FLUSH-NEXT: v_mov_b32_e32 v0, v2
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121 ; GFX9-F32FLUSH-NEXT: s_setpc_b64
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122
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123 ; GFX9-F32DENORM-NEXT: v_mul_f16_e32 v2, v2, v3
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124 ; GFX9-F32DENORM-NEXT: v_cvt_f32_f16_e32 v2, v2
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125 ; GFX9-F32DENORM-NEXT: v_fma_f32 v0, v0, v1, v2
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126 define float @fadd_fmad_fpext_fmul_f16_to_f32(float %x, float %y, half %u, half %v, float %z) #0 {
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127 entry:
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128 %mul = fmul half %u, %v
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129 %mul.ext = fpext half %mul to float
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130 %mul1 = fmul contract float %x, %y
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131 %fmad = fadd contract float %mul1, %mul.ext
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132 %add = fadd float %fmad, %z
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133 ret float %add
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134 }
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135
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136 ; fold (fadd (fma x, y, (fpext (fmul u, v))), z)
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137 ; -> (fma x, y, (fma (fpext u), (fpext v), z))
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138
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139 ; GCN-LABEL: {{^}}fadd_fma_fpext_fmul_f16_to_f32:
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140 ; GCN: s_waitcnt
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141 ; GFX89: v_mul_f16
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142 ; GFX89: v_cvt_f32_f16
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143 ; GFX89: v_fma_f32
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144 ; GFX89: v_add_f32
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145 define float @fadd_fma_fpext_fmul_f16_to_f32(float %x, float %y, half %u, half %v, float %z) #0 {
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146 entry:
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147 %mul = fmul contract half %u, %v
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148 %mul.ext = fpext half %mul to float
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149 %fma = call float @llvm.fma.f32(float %x, float %y, float %mul.ext)
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150 %add = fadd float %fma, %z
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151 ret float %add
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152 }
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153
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154 ; GCN-LABEL: {{^}}fadd_fma_fpext_fmul_f16_to_f32_commute:
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155 ; GCN: s_waitcnt
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156 ; GFX89: v_mul_f16
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157 ; GFX89: v_cvt_f32_f16
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158 ; GFX89: v_fma_f32
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159 ; GFX89: v_add_f32
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160 define float @fadd_fma_fpext_fmul_f16_to_f32_commute(float %x, float %y, half %u, half %v, float %z) #0 {
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161 entry:
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162 %mul = fmul contract half %u, %v
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163 %mul.ext = fpext half %mul to float
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164 %fma = call float @llvm.fma.f32(float %x, float %y, float %mul.ext)
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165 %add = fadd float %z, %fma
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166 ret float %add
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167 }
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168
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169 ; fold (fadd x, (fpext (fma y, z, (fmul u, v)))
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170 ; -> (fma (fpext y), (fpext z), (fma (fpext u), (fpext v), x))
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171
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172 ; GCN-LABEL: {{^}}fadd_fpext_fmuladd_f16_to_f32:
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173 ; GFX9: v_mul_f16
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174 ; GFX9: v_fma_legacy_f16
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175 ; GFX9: v_cvt_f32_f16
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176 ; GFX9: v_add_f32_e32
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177 define float @fadd_fpext_fmuladd_f16_to_f32(float %x, half %y, half %z, half %u, half %v) #0 {
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178 entry:
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179 %mul = fmul contract half %u, %v
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180 %fma = call half @llvm.fmuladd.f16(half %y, half %z, half %mul)
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181 %ext.fma = fpext half %fma to float
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182 %add = fadd float %x, %ext.fma
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183 ret float %add
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184 }
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185
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186 ; GCN-LABEL: {{^}}fadd_fpext_fma_f16_to_f32:
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187 ; GFX9: v_mul_f16
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188 ; GFX9: v_fma_legacy_f16
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189 ; GFX9: v_cvt_f32_f16
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190 ; GFX9: v_add_f32_e32
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191 define float @fadd_fpext_fma_f16_to_f32(float %x, half %y, half %z, half %u, half %v) #0 {
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192 entry:
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193 %mul = fmul contract half %u, %v
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194 %fma = call half @llvm.fma.f16(half %y, half %z, half %mul)
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195 %ext.fma = fpext half %fma to float
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196 %add = fadd float %x, %ext.fma
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197 ret float %add
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198 }
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199
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200 ; GCN-LABEL: {{^}}fadd_fpext_fma_f16_to_f32_commute:
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201 ; GFX9: v_mul_f16
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202 ; GFX9: v_fma_legacy_f16
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203 ; GFX9: v_cvt_f32_f16
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204 ; GFX9: v_add_f32_e32
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205 define float @fadd_fpext_fma_f16_to_f32_commute(float %x, half %y, half %z, half %u, half %v) #0 {
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206 entry:
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207 %mul = fmul contract half %u, %v
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208 %fma = call half @llvm.fma.f16(half %y, half %z, half %mul)
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209 %ext.fma = fpext half %fma to float
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210 %add = fadd float %ext.fma, %x
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211 ret float %add
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212 }
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213
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214 ; fold (fsub (fpext (fmul x, y)), z)
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215 ; -> (fma (fpext x), (fpext y), (fneg z))
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216
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217 ; GCN-LABEL: {{^}}fsub_fpext_fmul_f16_to_f32:
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218 ; GCN: s_waitcnt
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219 ; GFX9-F32FLUSH-NEXT: v_mad_mix_f32 v0, v0, v1, -v2 op_sel_hi:[1,1,0]{{$}}
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220 ; GFX9-F32FLUSH-NEXT: s_setpc_b64
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221
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222 ; GFX9-F32DENORM-NEXT: v_mul_f16_e32 v0, v0, v1
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223 ; GFX9-F32DENORM-NEXT: v_cvt_f32_f16_e32 v0, v0
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224 ; GFX9-F32DENORM-NEXT: v_sub_f32_e32 v0, v0, v2
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225 ; GFX9-F32DENORM-NEXT: s_setpc_b64
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226 define float @fsub_fpext_fmul_f16_to_f32(half %x, half %y, float %z) #0 {
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227 entry:
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228 %mul = fmul half %x, %y
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229 %mul.ext = fpext half %mul to float
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230 %add = fsub float %mul.ext, %z
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231 ret float %add
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232 }
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233
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234 ; fold (fsub x, (fpext (fmul y, z)))
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235 ; -> (fma (fneg (fpext y)), (fpext z), x)
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236
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237 ; GCN-LABEL: {{^}}fsub_fpext_fmul_f16_to_f32_commute:
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238 ; GCN: s_waitcnt
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239 ; GFX9-F32FLUSH-NEXT: v_mad_mix_f32 v0, -v1, v2, v0 op_sel_hi:[1,1,0]
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240 ; GFX9-F32FLUSH-NEXT: s_setpc_b64
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241
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242 ; GFX9-F32DENORM-NEXT: v_mul_f16_e32
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243 ; GFX9-F32DENORM-NEXT: v_cvt_f32_f16_e32
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244 ; GFX9-F32DENORM-NEXT: v_sub_f32_e32
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245 ; GFX9-F32DENORM-NEXT: s_setpc_b64
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246 define float @fsub_fpext_fmul_f16_to_f32_commute(float %x, half %y, half %z) #0 {
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247 entry:
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248 %mul = fmul contract half %y, %z
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249 %mul.ext = fpext half %mul to float
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250 %add = fsub contract float %x, %mul.ext
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251 ret float %add
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252 }
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253
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254 ; fold (fsub (fpext (fneg (fmul, x, y))), z)
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255 ; -> (fneg (fma (fpext x), (fpext y), z))
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256
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257 ; GCN-LABEL: {{^}}fsub_fpext_fneg_fmul_f16_to_f32:
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258 ; GCN: s_waitcnt
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259 ; GFX9-F32FLUSH-NEXT: v_mad_mix_f32 v0, v0, -v1, -v2 op_sel_hi:[1,1,0]{{$}}
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260 ; GFX9-F32FLUSH-NEXT: s_setpc_b64
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261
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262 ; GFX9-F32DENORM-NEXT: v_mul_f16_e64 v0, v0, -v1
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263 ; GFX9-F32DENORM-NEXT: v_cvt_f32_f16_e32 v0, v0
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264 ; GFX9-F32DENORM-NEXT: v_sub_f32_e32 v0, v0, v2
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265 ; GFX9-F32DENORM-NEXT: s_setpc_b64
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266 define float @fsub_fpext_fneg_fmul_f16_to_f32(half %x, half %y, float %z) #0 {
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267 entry:
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268 %mul = fmul half %x, %y
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269 %neg.mul = fsub half -0.0, %mul
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270 %neg.mul.ext = fpext half %neg.mul to float
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271 %add = fsub float %neg.mul.ext, %z
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272 ret float %add
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273 }
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274
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275 ; fold (fsub (fneg (fpext (fmul, x, y))), z)
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276 ; -> (fneg (fma (fpext x)), (fpext y), z)
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277
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278 ; GCN-LABEL: {{^}}fsub_fneg_fpext_fmul_f16_to_f32:
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279 ; GCN: s_waitcnt
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280 ; GFX9-F32FLUSH-NEXT: v_mad_mix_f32 v0, v0, -v1, -v2 op_sel_hi:[1,1,0]{{$}}
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281 ; GFX9-F32FLUSH-NEXT: s_setpc_b64
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282
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283 ; GFX9-F32DENORM-NEXT: v_mul_f16_e64 v0, v0, -v1
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284 ; GFX9-F32DENORM-NEXT: v_cvt_f32_f16_e32 v0, v0
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285 ; GFX9-F32DENORM-NEXT: v_sub_f32_e32 v0, v0, v2
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286 ; GFX9-F32DENORM-NEXT: s_setpc_b64
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287 define float @fsub_fneg_fpext_fmul_f16_to_f32(half %x, half %y, float %z) #0 {
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288 entry:
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289 %mul = fmul half %x, %y
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290 %mul.ext = fpext half %mul to float
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291 %neg.mul.ext = fsub float -0.0, %mul.ext
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292 %add = fsub float %neg.mul.ext, %z
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293 ret float %add
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294 }
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295
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296 ; fold (fsub (fmad x, y, (fpext (fmul u, v))), z)
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297 ; -> (fmad x, y (fmad (fpext u), (fpext v), (fneg z)))
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298 ; GCN-LABEL: {{^}}fsub_muladd_fpext_mul_f16_to_f32:
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299 ; GCN: s_waitcnt
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300 ; GFX9-F32FLUSH-NEXT: v_mad_mix_f32 v2, v3, v4, -v2 op_sel_hi:[1,1,0]{{$}}
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301 ; GFX9-F32FLUSH-NEXT: v_mac_f32_e32 v2, v0, v1
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302 ; GFX9-F32FLUSH-NEXT: v_mov_b32_e32 v0, v2
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303 ; GFX9-F32FLUSH-NEXT: s_setpc_b64
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304
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305 ; GFX9-F32DENORM-NEXT: v_mul_f16_e32 v3, v3, v4
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306 ; GFX9-F32DENORM-NEXT: v_cvt_f32_f16_e32 v3, v3
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307 ; GFX9-F32DENORM-NEXT: v_fma_f32 v0, v0, v1, v3
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308 ; GFX9-F32DENORM-NEXT: v_sub_f32_e32 v0, v0, v2
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309 ; GFX9-F32DENORM-NEXT: s_setpc_b64
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310 define float @fsub_muladd_fpext_mul_f16_to_f32(float %x, float %y, float %z, half %u, half %v) #0 {
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311 entry:
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312 %mul = fmul half %u, %v
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313 %mul.ext = fpext half %mul to float
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314 %fma = call float @llvm.fmuladd.f32(float %x, float %y, float %mul.ext)
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315 %add = fsub float %fma, %z
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316 ret float %add
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317 }
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318
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319 ; fold (fsub (fpext (fmad x, y, (fmul u, v))), z)
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320 ; -> (fmad (fpext x), (fpext y),
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321 ; (fmad (fpext u), (fpext v), (fneg z)))
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322
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323 ; GCN-LABEL: {{^}}fsub_fpext_muladd_mul_f16_to_f32:
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324 ; GFX9: v_mul_f16
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325 ; GFX9: v_fma_legacy_f16
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326 ; GFX9: v_cvt_f32_f16
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327 ; GFX9: v_sub_f32
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328 ; GCN: s_setpc_b64
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329 define float @fsub_fpext_muladd_mul_f16_to_f32(half %x, half %y, float %z, half %u, half %v) #0 {
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330 entry:
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331 %mul = fmul half %u, %v
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332 %fma = call half @llvm.fmuladd.f16(half %x, half %y, half %mul)
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333 %fma.ext = fpext half %fma to float
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334 %add = fsub float %fma.ext, %z
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335 ret float %add
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336 }
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337
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338 ; fold (fsub x, (fmad y, z, (fpext (fmul u, v))))
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339 ; -> (fmad (fneg y), z, (fmad (fneg (fpext u)), (fpext v), x))
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340 ; GCN-LABEL: {{^}}fsub_muladd_fpext_mul_f16_to_f32_commute:
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341 ; GCN: s_waitcnt
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342 ; GFX9-F32FLUSH-NEXT: v_mad_mix_f32 v0, -v3, v4, v0 op_sel_hi:[1,1,0]{{$}}
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343 ; GFX9-F32FLUSH-NEXT: v_mad_f32 v0, -v1, v2, v0{{$}}
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344 ; GFX9-F32FLUSH-NEXT: s_setpc_b64
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345
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346 ; GFX9-F32DENORM-NEXT: v_mul_f16_e32 v3, v3, v4
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347 ; GFX9-F32DENORM-NEXT: v_cvt_f32_f16_e32 v3, v3
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348 ; GFX9-F32DENORM-NEXT: v_fma_f32 v1, v1, v2, v3
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349 ; GFX9-F32DENORM-NEXT: v_sub_f32_e32 v0, v0, v1
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350 ; GFX9-F32DENORM-NEXT: s_setpc_b64
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351 define float @fsub_muladd_fpext_mul_f16_to_f32_commute(float %x, float %y, float %z, half %u, half %v) #0 {
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352 entry:
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353 %mul = fmul half %u, %v
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354 %mul.ext = fpext half %mul to float
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355 %fma = call float @llvm.fmuladd.f32(float %y, float %z, float %mul.ext)
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356 %add = fsub float %x, %fma
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357 ret float %add
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358 }
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359
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360 ; fold (fsub x, (fpext (fma y, z, (fmul u, v))))
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361 ; -> (fma (fneg (fpext y)), (fpext z),
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362 ; (fma (fneg (fpext u)), (fpext v), x))
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363 ; GCN-LABEL: {{^}}fsub_fpext_muladd_mul_f16_to_f32_commute:
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364 ; GCN: s_waitcnt
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365 ; GFX9-NEXT: v_mul_f16_e32 v3, v3, v4
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366 ; GFX9-NEXT: v_fma_legacy_f16 v1, v1, v2, v3
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367 ; GFX9-NEXT: v_cvt_f32_f16_e32 v1, v1
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368 ; GFX9-NEXT: v_sub_f32_e32 v0, v0, v1
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369 ; GFX9-NEXT: s_setpc_b64
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370 define float @fsub_fpext_muladd_mul_f16_to_f32_commute(float %x, half %y, half %z, half %u, half %v) #0 {
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371 entry:
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372 %mul = fmul half %u, %v
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373 %fma = call half @llvm.fmuladd.f16(half %y, half %z, half %mul)
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374 %fma.ext = fpext half %fma to float
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375 %add = fsub float %x, %fma.ext
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376 ret float %add
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377 }
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378
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379 declare float @llvm.fmuladd.f32(float, float, float) #0
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380 declare float @llvm.fma.f32(float, float, float) #0
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381 declare half @llvm.fmuladd.f16(half, half, half) #0
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382 declare half @llvm.fma.f16(half, half, half) #0
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383
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384 attributes #0 = { nounwind readnone speculatable }
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