clang/test/CodeGen/X86/fexcess-precision.c

   1 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
   2 // RUN: -ffloat16-excess-precision=fast -emit-llvm -o - %s \
   3 // RUN: | FileCheck -check-prefixes=CHECK-EXT %s
   4
   5 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
   6 // RUN: -ffloat16-excess-precision=fast -target-feature +avx512fp16 \
   7 // RUN: -emit-llvm -o - %s | FileCheck -check-prefixes=CHECK-NO-EXT %s
   8
   9 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  10 // RUN: -ffloat16-excess-precision=standard -emit-llvm -o - %s \
  11 // RUN: | FileCheck -check-prefixes=CHECK-EXT %s
  12
  13 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  14 // RUN: -ffloat16-excess-precision=standard -target-feature +avx512fp16 \
  15 // RUN: -emit-llvm -o - %s | FileCheck -check-prefixes=CHECK-NO-EXT %s
  16
  17 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  18 // RUN: -ffloat16-excess-precision=none -emit-llvm -o - %s \
  19 // RUN: | FileCheck -check-prefixes=CHECK-NO-EXT %s
  20
  21 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  22 // RUN: -ffloat16-excess-precision=none -target-feature +avx512fp16 \
  23 // RUN: -emit-llvm -o - %s \
  24 // RUN: | FileCheck -check-prefixes=CHECK-NO-EXT %s
  25
  26 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  27 // RUN: -ffloat16-excess-precision=fast \
  28 // RUN: -emit-llvm -ffp-eval-method=source -o - %s \
  29 // RUN: | FileCheck -check-prefixes=CHECK-EXT %s
  30
  31 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  32 // RUN: -ffloat16-excess-precision=fast -target-feature +avx512fp16 \
  33 // RUN: -emit-llvm -ffp-eval-method=source -o - %s \
  34 // RUN: | FileCheck -check-prefixes=CHECK-NO-EXT %s
  35
  36 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  37 // RUN: -ffloat16-excess-precision=standard \
  38 // RUN: -emit-llvm -ffp-eval-method=source -o - %s \
  39 // RUN: | FileCheck -check-prefixes=CHECK-EXT %s
  40
  41 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  42 // RUN: -ffloat16-excess-precision=standard  -target-feature +avx512fp16 \
  43 // RUN: -emit-llvm -ffp-eval-method=source -o - %s \
  44 // RUN: | FileCheck -check-prefixes=CHECK-NO-EXT %s
  45
  46 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  47 // RUN: -ffloat16-excess-precision=none \
  48 // RUN: -emit-llvm -ffp-eval-method=source -o - %s \
  49 // RUN: | FileCheck -check-prefixes=CHECK-NO-EXT %s
  50
  51 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  52 // RUN: -ffloat16-excess-precision=none -target-feature +avx512fp16 \
  53 // RUN: -emit-llvm -ffp-eval-method=source -o - %s \
  54 // RUN: | FileCheck -check-prefixes=CHECK-NO-EXT %s
  55
  56 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  57 // RUN: -ffloat16-excess-precision=fast \
  58 // RUN: -emit-llvm -ffp-eval-method=double -o - %s \
  59 // RUN: | FileCheck -check-prefixes=CHECK-EXT-DBL %s
  60
  61 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  62 // RUN: -ffloat16-excess-precision=fast -target-feature +avx512fp16 \
  63 // RUN: -emit-llvm -ffp-eval-method=double -o - %s \
  64 // RUN: | FileCheck -check-prefixes=CHECK-EXT-DBL %s
  65
  66 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  67 // RUN: -ffloat16-excess-precision=standard \
  68 // RUN: -emit-llvm -ffp-eval-method=double -o - %s \
  69 // RUN: | FileCheck -check-prefixes=CHECK-EXT-DBL %s
  70
  71 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  72 // RUN: -ffloat16-excess-precision=standard -target-feature +avx512fp16 \
  73 // RUN: -emit-llvm -ffp-eval-method=double -o - %s \
  74 // RUN: | FileCheck -check-prefixes=CHECK-EXT-DBL %s
  75
  76 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  77 // RUN: -ffloat16-excess-precision=none \
  78 // RUN: -emit-llvm -ffp-eval-method=double -o - %s \
  79 // RUN: | FileCheck -check-prefixes=CHECK-EXT-DBL %s
  80
  81 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  82 // RUN: -ffloat16-excess-precision=none -target-feature +avx512fp16 \
  83 // RUN: -emit-llvm -ffp-eval-method=double -o - %s \
  84 // RUN: | FileCheck -check-prefixes=CHECK-EXT-DBL %s
  85
  86 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  87 // RUN: -ffloat16-excess-precision=fast \
  88 // RUN: -emit-llvm -ffp-eval-method=extended -o - %s \
  89 // RUN: | FileCheck -check-prefixes=CHECK-EXT-FP80 %s
  90
  91 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  92 // RUN: -ffloat16-excess-precision=fast -target-feature +avx512fp16 \
  93 // RUN: -emit-llvm -ffp-eval-method=extended -o - %s \
  94 // RUN: | FileCheck -check-prefixes=CHECK-EXT-FP80 %s
  95
  96 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
  97 // RUN: -ffloat16-excess-precision=standard \
  98 // RUN: -emit-llvm -ffp-eval-method=extended -o - %s \
  99 // RUN: | FileCheck -check-prefixes=CHECK-EXT-FP80 %s
 100
 101 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
 102 // RUN: -ffloat16-excess-precision=standard -target-feature +avx512fp16 \
 103 // RUN: -emit-llvm -ffp-eval-method=extended -o - %s \
 104 // RUN: | FileCheck -check-prefixes=CHECK-EXT-FP80 %s
 105
 106 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
 107 // RUN: -ffloat16-excess-precision=none \
 108 // RUN: -emit-llvm -ffp-eval-method=extended -o - %s \
 109 // RUN: | FileCheck -check-prefixes=CHECK-EXT-FP80 %s
 110
 111 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
 112 // RUN: -ffloat16-excess-precision=none -target-feature +avx512fp16 \
 113 // RUN: -emit-llvm -ffp-eval-method=extended -o - %s \
 114 // RUN: | FileCheck -check-prefixes=CHECK-EXT-FP80 %s
 115
 116 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
 117 // RUN: -ffloat16-excess-precision=none \
 118 // RUN: -ffp-contract=on -emit-llvm -o - %s \
 119 // RUN: | FileCheck -check-prefixes=CHECK-CONTRACT %s
 120
 121 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
 122 // RUN: -ffloat16-excess-precision=none -target-feature +avx512fp16 \
 123 // RUN: -ffp-contract=on -emit-llvm -o - %s \
 124 // RUN: | FileCheck -check-prefixes=CHECK-CONTRACT %s
 125
 126 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
 127 // RUN: -ffloat16-excess-precision=none \
 128 // RUN: -fmath-errno -ffp-contract=on -fno-rounding-math \
 129 // RUN: -ffp-eval-method=source -emit-llvm -o - %s \
 130 // RUN: | FileCheck -check-prefixes=CHECK-CONTRACT %s
 131
 132 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
 133 // RUN: -ffloat16-excess-precision=none -target-feature +avx512fp16 \
 134 // RUN: -fmath-errno -ffp-contract=on -fno-rounding-math \
 135 // RUN: -ffp-eval-method=source -emit-llvm -o - %s \
 136 // RUN: | FileCheck -check-prefixes=CHECK-CONTRACT %s
 137
 138 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
 139 // RUN: -ffloat16-excess-precision=none \
 140 // RUN: -fmath-errno -ffp-contract=on -fno-rounding-math \
 141 // RUN: -ffp-eval-method=double -emit-llvm -o - %s \
 142 // RUN: | FileCheck -check-prefixes=CHECK-CONTRACT-DBL %s
 143
 144 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
 145 // RUN: -ffloat16-excess-precision=none -target-feature +avx512fp16 \
 146 // RUN: -fmath-errno -ffp-contract=on -fno-rounding-math \
 147 // RUN: -ffp-eval-method=double -emit-llvm -o - %s \
 148 // RUN: | FileCheck -check-prefixes=CHECK-CONTRACT-DBL %s
 149
 150 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
 151 // RUN: -ffloat16-excess-precision=none \
 152 // RUN: -fmath-errno -ffp-contract=on -fno-rounding-math \
 153 // RUN: -ffp-eval-method=extended -emit-llvm -o - %s \
 154 // RUN: | FileCheck -check-prefixes=CHECK-CONTRACT-EXT %s
 155
 156 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
 157 // RUN: -ffloat16-excess-precision=none -target-feature +avx512fp16 \
 158 // RUN: -fmath-errno -ffp-contract=on -fno-rounding-math \
 159 // RUN: -ffp-eval-method=extended -emit-llvm -o - %s \
 160 // RUN: | FileCheck -check-prefixes=CHECK-CONTRACT-EXT %s
 161
 162 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
 163 // RUN: -ffloat16-excess-precision=none \
 164 // RUN: -fapprox-func -fmath-errno -fno-signed-zeros -mreassociate \
 165 // RUN: -freciprocal-math -ffp-contract=on -fno-rounding-math \
 166 // RUN: -funsafe-math-optimizations -emit-llvm -o - %s \
 167 // RUN: | FileCheck -check-prefixes=CHECK-UNSAFE %s
 168
 169 // RUN: %clang_cc1 -triple x86_64-unknown-unknown \
 170 // RUN: -ffloat16-excess-precision=none -target-feature +avx512fp16 \
 171 // RUN: -fapprox-func -fmath-errno -fno-signed-zeros -mreassociate \
 172 // RUN: -freciprocal-math -ffp-contract=on -fno-rounding-math \
 173 // RUN: -funsafe-math-optimizations -emit-llvm -o - %s \
 174 // RUN: | FileCheck -check-prefixes=CHECK-UNSAFE %s
 175
 176 // CHECK-EXT-LABEL: @f(
 177 // CHECK-EXT-NEXT:  entry:
 178 // CHECK-EXT-NEXT:    [[A_ADDR:%.*]] = alloca half
 179 // CHECK-EXT-NEXT:    [[B_ADDR:%.*]] = alloca half
 180 // CHECK-EXT-NEXT:    [[C_ADDR:%.*]] = alloca half
 181 // CHECK-EXT-NEXT:    [[D_ADDR:%.*]] = alloca half
 182 // CHECK-EXT-NEXT:    store half [[A:%.*]], ptr [[A_ADDR]]
 183 // CHECK-EXT-NEXT:    store half [[B:%.*]], ptr [[B_ADDR]]
 184 // CHECK-EXT-NEXT:    store half [[C:%.*]], ptr [[C_ADDR]]
 185 // CHECK-EXT-NEXT:    store half [[D:%.*]], ptr [[D_ADDR]]
 186 // CHECK-EXT-NEXT:    [[TMP0:%.*]] = load half, ptr [[A_ADDR]]
 187 // CHECK-EXT-NEXT:    [[EXT:%.*]] = fpext half [[TMP0]] to float
 188 // CHECK-EXT-NEXT:    [[TMP1:%.*]] = load half, ptr [[B_ADDR]]
 189 // CHECK-EXT-NEXT:    [[EXT1:%.*]] = fpext half [[TMP1]] to float
 190 // CHECK-EXT-NEXT:    [[MUL:%.*]] = fmul float [[EXT]], [[EXT1]]
 191 // CHECK-EXT-NEXT:    [[TMP2:%.*]] = load half, ptr [[C_ADDR]]
 192 // CHECK-EXT-NEXT:    [[EXT2:%.*]] = fpext half [[TMP2]] to float
 193 // CHECK-EXT-NEXT:    [[TMP3:%.*]] = load half, ptr [[D_ADDR]]
 194 // CHECK-EXT-NEXT:    [[EXT3:%.*]] = fpext half [[TMP3]] to float
 195 // CHECK-EXT-NEXT:    [[MUL4:%.*]] = fmul float [[EXT2]], [[EXT3]]
 196 // CHECK-EXT-NEXT:    [[ADD:%.*]] = fadd float [[MUL]], [[MUL4]]
 197 // CHECK-EXT-NEXT:    [[UNPROMOTION:%.*]] = fptrunc float [[ADD]] to half
 198 // CHECK-EXT-NEXT:    ret half [[UNPROMOTION]]
 199 //
 200 // CHECK-NO-EXT-LABEL: @f(
 201 // CHECK-NO-EXT-NEXT:  entry:
 202 // CHECK-NO-EXT-NEXT:    [[A_ADDR:%.*]] = alloca half
 203 // CHECK-NO-EXT-NEXT:    [[B_ADDR:%.*]] = alloca half
 204 // CHECK-NO-EXT-NEXT:    [[C_ADDR:%.*]] = alloca half
 205 // CHECK-NO-EXT-NEXT:    [[D_ADDR:%.*]] = alloca half
 206 // CHECK-NO-EXT-NEXT:    store half [[A:%.*]], ptr [[A_ADDR]]
 207 // CHECK-NO-EXT-NEXT:    store half [[B:%.*]], ptr [[B_ADDR]]
 208 // CHECK-NO-EXT-NEXT:    store half [[C:%.*]], ptr [[C_ADDR]]
 209 // CHECK-NO-EXT-NEXT:    store half [[D:%.*]], ptr [[D_ADDR]]
 210 // CHECK-NO-EXT-NEXT:    [[TMP0:%.*]] = load half, ptr [[A_ADDR]]
 211 // CHECK-NO-EXT-NEXT:    [[TMP1:%.*]] = load half, ptr [[B_ADDR]]
 212 // CHECK-NO-EXT-NEXT:    [[MUL:%.*]] = fmul half [[TMP0]], [[TMP1]]
 213 // CHECK-NO-EXT-NEXT:    [[TMP2:%.*]] = load half, ptr [[C_ADDR]]
 214 // CHECK-NO-EXT-NEXT:    [[TMP3:%.*]] = load half, ptr [[D_ADDR]]
 215 // CHECK-NO-EXT-NEXT:    [[MUL1:%.*]] = fmul half [[TMP2]], [[TMP3]]
 216 // CHECK-NO-EXT-NEXT:    [[ADD:%.*]] = fadd half [[MUL]], [[MUL1]]
 217 // CHECK-NO-EXT-NEXT:    ret half [[ADD]]
 218 //
 219 // CHECK-EXT-DBL-LABEL: @f(
 220 // CHECK-EXT-DBL-NEXT:  entry:
 221 // CHECK-EXT-DBL-NEXT:    [[A_ADDR:%.*]] = alloca half
 222 // CHECK-EXT-DBL-NEXT:    [[B_ADDR:%.*]] = alloca half
 223 // CHECK-EXT-DBL-NEXT:    [[C_ADDR:%.*]] = alloca half
 224 // CHECK-EXT-DBL-NEXT:    [[D_ADDR:%.*]] = alloca half
 225 // CHECK-EXT-DBL-NEXT:    store half [[A:%.*]], ptr [[A_ADDR]]
 226 // CHECK-EXT-DBL-NEXT:    store half [[B:%.*]], ptr [[B_ADDR]]
 227 // CHECK-EXT-DBL-NEXT:    store half [[C:%.*]], ptr [[C_ADDR]]
 228 // CHECK-EXT-DBL-NEXT:    store half [[D:%.*]], ptr [[D_ADDR]]
 229 // CHECK-EXT-DBL-NEXT:    [[TMP0:%.*]] = load half, ptr [[A_ADDR]]
 230 // CHECK-EXT-DBL-NEXT:    [[CONV:%.*]] = fpext half [[TMP0]] to double
 231 // CHECK-EXT-DBL-NEXT:    [[TMP1:%.*]] = load half, ptr [[B_ADDR]]
 232 // CHECK-EXT-DBL-NEXT:    [[CONV1:%.*]] = fpext half [[TMP1]] to double
 233 // CHECK-EXT-DBL-NEXT:    [[MUL:%.*]] = fmul double [[CONV]], [[CONV1]]
 234 // CHECK-EXT-DBL-NEXT:    [[TMP2:%.*]] = load half, ptr [[C_ADDR]]
 235 // CHECK-EXT-DBL-NEXT:    [[CONV2:%.*]] = fpext half [[TMP2]] to double
 236 // CHECK-EXT-DBL-NEXT:    [[TMP3:%.*]] = load half, ptr [[D_ADDR]]
 237 // CHECK-EXT-DBL-NEXT:    [[CONV3:%.*]] = fpext half [[TMP3]] to double
 238 // CHECK-EXT-DBL-NEXT:    [[MUL4:%.*]] = fmul double [[CONV2]], [[CONV3]]
 239 // CHECK-EXT-DBL-NEXT:    [[ADD:%.*]] = fadd double [[MUL]], [[MUL4]]
 240 // CHECK-EXT-DBL-NEXT:    [[CONV5:%.*]] = fptrunc double [[ADD]] to half
 241 // CHECK-EXT-DBL-NEXT:    ret half [[CONV5]]
 242 //
 243 // CHECK-EXT-FP80-LABEL: @f(
 244 // CHECK-EXT-FP80-NEXT:  entry:
 245 // CHECK-EXT-FP80-NEXT:    [[A_ADDR:%.*]] = alloca half
 246 // CHECK-EXT-FP80-NEXT:    [[B_ADDR:%.*]] = alloca half
 247 // CHECK-EXT-FP80-NEXT:    [[C_ADDR:%.*]] = alloca half
 248 // CHECK-EXT-FP80-NEXT:    [[D_ADDR:%.*]] = alloca half
 249 // CHECK-EXT-FP80-NEXT:    store half [[A:%.*]], ptr [[A_ADDR]]
 250 // CHECK-EXT-FP80-NEXT:    store half [[B:%.*]], ptr [[B_ADDR]]
 251 // CHECK-EXT-FP80-NEXT:    store half [[C:%.*]], ptr [[C_ADDR]]
 252 // CHECK-EXT-FP80-NEXT:    store half [[D:%.*]], ptr [[D_ADDR]]
 253 // CHECK-EXT-FP80-NEXT:    [[TMP0:%.*]] = load half, ptr [[A_ADDR]]
 254 // CHECK-EXT-FP80-NEXT:    [[CONV:%.*]] = fpext half [[TMP0]] to x86_fp80
 255 // CHECK-EXT-FP80-NEXT:    [[TMP1:%.*]] = load half, ptr [[B_ADDR]]
 256 // CHECK-EXT-FP80-NEXT:    [[CONV1:%.*]] = fpext half [[TMP1]] to x86_fp80
 257 // CHECK-EXT-FP80-NEXT:    [[MUL:%.*]] = fmul x86_fp80 [[CONV]], [[CONV1]]
 258 // CHECK-EXT-FP80-NEXT:    [[TMP2:%.*]] = load half, ptr [[C_ADDR]]
 259 // CHECK-EXT-FP80-NEXT:    [[CONV2:%.*]] = fpext half [[TMP2]] to x86_fp80
 260 // CHECK-EXT-FP80-NEXT:    [[TMP3:%.*]] = load half, ptr [[D_ADDR]]
 261 // CHECK-EXT-FP80-NEXT:    [[CONV3:%.*]] = fpext half [[TMP3]] to x86_fp80
 262 // CHECK-EXT-FP80-NEXT:    [[MUL4:%.*]] = fmul x86_fp80 [[CONV2]], [[CONV3]]
 263 // CHECK-EXT-FP80-NEXT:    [[ADD:%.*]] = fadd x86_fp80 [[MUL]], [[MUL4]]
 264 // CHECK-EXT-FP80-NEXT:    [[CONV5:%.*]] = fptrunc x86_fp80 [[ADD]] to half
 265 // CHECK-EXT-FP80-NEXT:    ret half [[CONV5]]
 266 //
 267 // CHECK-CONTRACT-LABEL: @f(
 268 // CHECK-CONTRACT-NEXT:  entry:
 269 // CHECK-CONTRACT-NEXT:    [[A_ADDR:%.*]] = alloca half
 270 // CHECK-CONTRACT-NEXT:    [[B_ADDR:%.*]] = alloca half
 271 // CHECK-CONTRACT-NEXT:    [[C_ADDR:%.*]] = alloca half
 272 // CHECK-CONTRACT-NEXT:    [[D_ADDR:%.*]] = alloca half
 273 // CHECK-CONTRACT-NEXT:    store half [[A:%.*]], ptr [[A_ADDR]]
 274 // CHECK-CONTRACT-NEXT:    store half [[B:%.*]], ptr [[B_ADDR]]
 275 // CHECK-CONTRACT-NEXT:    store half [[C:%.*]], ptr [[C_ADDR]]
 276 // CHECK-CONTRACT-NEXT:    store half [[D:%.*]], ptr [[D_ADDR]]
 277 // CHECK-CONTRACT-NEXT:    [[TMP0:%.*]] = load half, ptr [[A_ADDR]]
 278 // CHECK-CONTRACT-NEXT:    [[TMP1:%.*]] = load half, ptr [[B_ADDR]]
 279 // CHECK-CONTRACT-NEXT:    [[TMP2:%.*]] = load half, ptr [[C_ADDR]]
 280 // CHECK-CONTRACT-NEXT:    [[TMP3:%.*]] = load half, ptr [[D_ADDR]]
 281 // CHECK-CONTRACT-NEXT:    [[MUL1:%.*]] = fmul half [[TMP2]], [[TMP3]]
 282 // CHECK-CONTRACT-NEXT:    [[TMP4:%.*]] = call half @llvm.fmuladd.f16(half [[TMP0]], half [[TMP1]], half [[MUL1]])
 283 // CHECK-CONTRACT-NEXT:    ret half [[TMP4]]
 284 //
 285 // CHECK-CONTRACT-DBL-LABEL: @f(
 286 // CHECK-CONTRACT-DBL-NEXT:  entry:
 287 // CHECK-CONTRACT-DBL-NEXT:    [[A_ADDR:%.*]] = alloca half
 288 // CHECK-CONTRACT-DBL-NEXT:    [[B_ADDR:%.*]] = alloca half
 289 // CHECK-CONTRACT-DBL-NEXT:    [[C_ADDR:%.*]] = alloca half
 290 // CHECK-CONTRACT-DBL-NEXT:    [[D_ADDR:%.*]] = alloca half
 291 // CHECK-CONTRACT-DBL-NEXT:    store half [[A:%.*]], ptr [[A_ADDR]]
 292 // CHECK-CONTRACT-DBL-NEXT:    store half [[B:%.*]], ptr [[B_ADDR]]
 293 // CHECK-CONTRACT-DBL-NEXT:    store half [[C:%.*]], ptr [[C_ADDR]]
 294 // CHECK-CONTRACT-DBL-NEXT:    store half [[D:%.*]], ptr [[D_ADDR]]
 295 // CHECK-CONTRACT-DBL-NEXT:    [[TMP0:%.*]] = load half, ptr [[A_ADDR]]
 296 // CHECK-CONTRACT-DBL-NEXT:    [[CONV:%.*]] = fpext half [[TMP0]] to double
 297 // CHECK-CONTRACT-DBL-NEXT:    [[TMP1:%.*]] = load half, ptr [[B_ADDR]]
 298 // CHECK-CONTRACT-DBL-NEXT:    [[CONV1:%.*]] = fpext half [[TMP1]] to double
 299 // CHECK-CONTRACT-DBL-NEXT:    [[TMP2:%.*]] = load half, ptr [[C_ADDR]]
 300 // CHECK-CONTRACT-DBL-NEXT:    [[CONV2:%.*]] = fpext half [[TMP2]] to double
 301 // CHECK-CONTRACT-DBL-NEXT:    [[TMP3:%.*]] = load half, ptr [[D_ADDR]]
 302 // CHECK-CONTRACT-DBL-NEXT:    [[CONV3:%.*]] = fpext half [[TMP3]] to double
 303 // CHECK-CONTRACT-DBL-NEXT:    [[MUL4:%.*]] = fmul double [[CONV2]], [[CONV3]]
 304 // CHECK-CONTRACT-DBL-NEXT:    [[TMP4:%.*]] = call double @llvm.fmuladd.f64(double [[CONV]], double [[CONV1]], double [[MUL4]])
 305 // CHECK-CONTRACT-DBL-NEXT:    [[CONV5:%.*]] = fptrunc double [[TMP4]] to half
 306 // CHECK-CONTRACT-DBL-NEXT:    ret half [[CONV5]]
 307 //
 308 // CHECK-CONTRACT-EXT-LABEL: @f(
 309 // CHECK-CONTRACT-EXT-NEXT:  entry:
 310 // CHECK-CONTRACT-EXT-NEXT:    [[A_ADDR:%.*]] = alloca half
 311 // CHECK-CONTRACT-EXT-NEXT:    [[B_ADDR:%.*]] = alloca half
 312 // CHECK-CONTRACT-EXT-NEXT:    [[C_ADDR:%.*]] = alloca half
 313 // CHECK-CONTRACT-EXT-NEXT:    [[D_ADDR:%.*]] = alloca half
 314 // CHECK-CONTRACT-EXT-NEXT:    store half [[A:%.*]], ptr [[A_ADDR]]
 315 // CHECK-CONTRACT-EXT-NEXT:    store half [[B:%.*]], ptr [[B_ADDR]]
 316 // CHECK-CONTRACT-EXT-NEXT:    store half [[C:%.*]], ptr [[C_ADDR]]
 317 // CHECK-CONTRACT-EXT-NEXT:    store half [[D:%.*]], ptr [[D_ADDR]]
 318 // CHECK-CONTRACT-EXT-NEXT:    [[TMP0:%.*]] = load half, ptr [[A_ADDR]]
 319 // CHECK-CONTRACT-EXT-NEXT:    [[CONV:%.*]] = fpext half [[TMP0]] to x86_fp80
 320 // CHECK-CONTRACT-EXT-NEXT:    [[TMP1:%.*]] = load half, ptr [[B_ADDR]]
 321 // CHECK-CONTRACT-EXT-NEXT:    [[CONV1:%.*]] = fpext half [[TMP1]] to x86_fp80
 322 // CHECK-CONTRACT-EXT-NEXT:    [[TMP2:%.*]] = load half, ptr [[C_ADDR]]
 323 // CHECK-CONTRACT-EXT-NEXT:    [[CONV2:%.*]] = fpext half [[TMP2]] to x86_fp80
 324 // CHECK-CONTRACT-EXT-NEXT:    [[TMP3:%.*]] = load half, ptr [[D_ADDR]]
 325 // CHECK-CONTRACT-EXT-NEXT:    [[CONV3:%.*]] = fpext half [[TMP3]] to x86_fp80
 326 // CHECK-CONTRACT-EXT-NEXT:    [[MUL4:%.*]] = fmul x86_fp80 [[CONV2]], [[CONV3]]
 327 // CHECK-CONTRACT-EXT-NEXT:    [[TMP4:%.*]] = call x86_fp80 @llvm.fmuladd.f80(x86_fp80 [[CONV]], x86_fp80 [[CONV1]], x86_fp80 [[MUL4]])
 328 // CHECK-CONTRACT-EXT-NEXT:    [[CONV5:%.*]] = fptrunc x86_fp80 [[TMP4]] to half
 329 // CHECK-CONTRACT-EXT-NEXT:    ret half [[CONV5]]
 330 //
 331 // CHECK-UNSAFE-LABEL: @f(
 332 // CHECK-UNSAFE-NEXT:  entry:
 333 // CHECK-UNSAFE-NEXT:    [[A_ADDR:%.*]] = alloca half
 334 // CHECK-UNSAFE-NEXT:    [[B_ADDR:%.*]] = alloca half
 335 // CHECK-UNSAFE-NEXT:    [[C_ADDR:%.*]] = alloca half
 336 // CHECK-UNSAFE-NEXT:    [[D_ADDR:%.*]] = alloca half
 337 // CHECK-UNSAFE-NEXT:    store half [[A:%.*]], ptr [[A_ADDR]]
 338 // CHECK-UNSAFE-NEXT:    store half [[B:%.*]], ptr [[B_ADDR]]
 339 // CHECK-UNSAFE-NEXT:    store half [[C:%.*]], ptr [[C_ADDR]]
 340 // CHECK-UNSAFE-NEXT:    store half [[D:%.*]], ptr [[D_ADDR]]
 341 // CHECK-UNSAFE-NEXT:    [[TMP0:%.*]] = load half, ptr [[A_ADDR]]
 342 // CHECK-UNSAFE-NEXT:    [[TMP1:%.*]] = load half, ptr [[B_ADDR]]
 343 // CHECK-UNSAFE-NEXT:    [[TMP2:%.*]] = load half, ptr [[C_ADDR]]
 344 // CHECK-UNSAFE-NEXT:    [[TMP3:%.*]] = load half, ptr [[D_ADDR]]
 345 // CHECK-UNSAFE-NEXT:    [[MUL1:%.*]] = fmul reassoc nsz arcp afn half [[TMP2]], [[TMP3]]
 346 // CHECK-UNSAFE-NEXT:    [[TMP4:%.*]] = call reassoc nsz arcp afn half @llvm.fmuladd.f16(half [[TMP0]], half [[TMP1]], half [[MUL1]])
 347 // CHECK-UNSAFE-NEXT:    ret half [[TMP4]]
 348 //
 349 _Float16 f(_Float16 a, _Float16 b, _Float16 c, _Float16 d) {
 350     return a * b + c * d;
 351 }
 352
 353 // CHECK-EXT-LABEL: @getFEM(
 354 // CHECK-EXT-NEXT:  entry:
 355 // CHECK-EXT-NEXT:    ret i32 0
 356 //
 357 // CHECK-NO-EXT-LABEL: @getFEM(
 358 // CHECK-NO-EXT-NEXT:  entry:
 359 // CHECK-NO-EXT-NEXT:    ret i32 0
 360 //
 361 // CHECK-EXT-DBL-LABEL: @getFEM(
 362 // CHECK-EXT-DBL-NEXT:  entry:
 363 // CHECK-EXT-DBL-NEXT:    ret i32 1
 364 //
 365 // CHECK-EXT-FP80-LABEL: @getFEM(
 366 // CHECK-EXT-FP80-NEXT:  entry:
 367 // CHECK-EXT-FP80-NEXT:    ret i32 2
 368 //
 369 // CHECK-CONTRACT-LABEL: @getFEM(
 370 // CHECK-CONTRACT-NEXT:  entry:
 371 // CHECK-CONTRACT-NEXT:    ret i32 0
 372 //
 373 // CHECK-CONTRACT-DBL-LABEL: @getFEM(
 374 // CHECK-CONTRACT-DBL-NEXT:  entry:
 375 // CHECK-CONTRACT-DBL-NEXT:    ret i32 1
 376 //
 377 // CHECK-CONTRACT-EXT-LABEL: @getFEM(
 378 // CHECK-CONTRACT-EXT-NEXT:  entry:
 379 // CHECK-CONTRACT-EXT-NEXT:    ret i32 2
 380 //
 381 // CHECK-UNSAFE-LABEL: @getFEM(
 382 // CHECK-UNSAFE-NEXT:  entry:
 383 // CHECK-UNSAFE-NEXT:    ret i32 0
 384 //
 385 int getFEM() {
 386   return __FLT_EVAL_METHOD__;
 387 }