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annotate test/CodeGen/SystemZ/fp-abs-02.ll @ 128:c347d3398279 default tip

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fix
author mir3636
date Wed, 06 Dec 2017 14:37:17 +0900
parents afa8332a0e37
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; Test negated floating-point absolute.
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2 ;
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3 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z10 | FileCheck %s
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4 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z13 | FileCheck %s
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5
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6 ; Test f32.
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7 declare float @llvm.fabs.f32(float %f)
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8 define float @f1(float %f) {
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9 ; CHECK-LABEL: f1:
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10 ; CHECK: lndfr %f0, %f0
0
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11 ; CHECK: br %r14
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12 %abs = call float @llvm.fabs.f32(float %f)
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13 %res = fsub float -0.0, %abs
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14 ret float %res
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15 }
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16
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17 ; Test f64.
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18 declare double @llvm.fabs.f64(double %f)
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19 define double @f2(double %f) {
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20 ; CHECK-LABEL: f2:
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21 ; CHECK: lndfr %f0, %f0
0
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22 ; CHECK: br %r14
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23 %abs = call double @llvm.fabs.f64(double %f)
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24 %res = fsub double -0.0, %abs
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25 ret double %res
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26 }
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27
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28 ; Test f128. With the loads and stores, a pure negative-absolute would
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29 ; probably be better implemented using an OI on the upper byte. Do some
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30 ; extra processing so that using FPRs is unequivocally better.
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31 declare fp128 @llvm.fabs.f128(fp128 %f)
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32 define void @f3(fp128 *%ptr, fp128 *%ptr2) {
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33 ; CHECK-LABEL: f3:
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34 ; CHECK: lnxbr
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35 ; CHECK: dxbr
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36 ; CHECK: br %r14
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37 %orig = load fp128 , fp128 *%ptr
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38 %abs = call fp128 @llvm.fabs.f128(fp128 %orig)
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39 %negabs = fsub fp128 0xL00000000000000008000000000000000, %abs
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40 %op2 = load fp128 , fp128 *%ptr2
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41 %res = fdiv fp128 %negabs, %op2
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42 store fp128 %res, fp128 *%ptr
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43 ret void
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44 }