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121
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1 ; Test vector subtraction 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 a v4f32 subtraction.
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6 define <4 x float> @f6(<4 x float> %dummy, <4 x float> %val1,
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7 <4 x float> %val2) {
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8 ; CHECK-LABEL: f6:
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9 ; CHECK: vfssb %v24, %v26, %v28
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10 ; CHECK: br %r14
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11 %ret = fsub <4 x float> %val1, %val2
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12 ret <4 x float> %ret
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13 }
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14
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15 ; Test an f32 subtraction that uses vector registers.
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16 define float @f7(<4 x float> %val1, <4 x float> %val2) {
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17 ; CHECK-LABEL: f7:
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18 ; CHECK: wfssb %f0, %v24, %v26
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19 ; CHECK: br %r14
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20 %scalar1 = extractelement <4 x float> %val1, i32 0
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21 %scalar2 = extractelement <4 x float> %val2, i32 0
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22 %ret = fsub float %scalar1, %scalar2
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23 ret float %ret
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24 }
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25
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26 ; Test a v2f32 subtraction, which gets promoted to v4f32.
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27 define <2 x float> @f14(<2 x float> %val1, <2 x float> %val2) {
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28 ; No particular output expected, but must compile.
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29 %ret = fsub <2 x float> %val1, %val2
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30 ret <2 x float> %ret
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31 }
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