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121
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1 ; Test f128 floating-point truncations/extensions on z14.
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2 ;
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3 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z14 | FileCheck %s
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4
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5 ; Test f128->f64.
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6 define double @f1(fp128 *%ptr) {
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7 ; CHECK-LABEL: f1:
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8 ; CHECK: vl [[REG:%v[0-9]+]], 0(%r2)
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9 ; CHECK: wflrx %f0, [[REG]], 0, 0
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10 ; CHECK: br %r14
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11 %val = load fp128, fp128 *%ptr
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12 %res = fptrunc fp128 %val to double
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13 ret double %res
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14 }
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15
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16 ; Test f128->f32.
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17 define float @f2(fp128 *%ptr) {
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18 ; CHECK-LABEL: f2:
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19 ; CHECK: vl [[REG:%v[0-9]+]], 0(%r2)
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20 ; CHECK: wflrx %f0, [[REG]], 0, 3
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21 ; CHECK: ledbra %f0, 0, %f0, 0
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22 ; CHECK: br %r14
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23 %val = load fp128, fp128 *%ptr
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24 %res = fptrunc fp128 %val to float
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25 ret float %res
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26 }
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27
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28 ; Test f64->f128.
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29 define void @f3(fp128 *%dst, double %val) {
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30 ; CHECK-LABEL: f3:
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31 ; CHECK: wflld [[RES:%v[0-9]+]], %f0
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32 ; CHECK: vst [[RES]], 0(%r2)
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33 ; CHECK: br %r14
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34 %res = fpext double %val to fp128
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35 store fp128 %res, fp128 *%dst
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36 ret void
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37 }
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38
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39 ; Test f32->f128.
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40 define void @f4(fp128 *%dst, float %val) {
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41 ; CHECK-LABEL: f4:
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42 ; CHECK: ldebr %f0, %f0
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43 ; CHECK: wflld [[RES:%v[0-9]+]], %f0
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44 ; CHECK: vst [[RES]], 0(%r2)
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45 ; CHECK: br %r14
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46 %res = fpext float %val to fp128
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47 store fp128 %res, fp128 *%dst
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48 ret void
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49 }
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50
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