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annotate test/CodeGen/SystemZ/atomicrmw-xchg-02.ll @ 128:c347d3398279 default tip

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fix
author mir3636
date Wed, 06 Dec 2017 14:37:17 +0900
parents 803732b1fca8
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 16-bit atomic exchange.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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2 ;
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3 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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4 ; RUN: llc < %s -mtriple=s390x-linux-gnu | FileCheck %s -check-prefix=CHECK-SHIFT
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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5
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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6 ; Check exchange with a variable.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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7 ; - CHECK is for the main loop.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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8 ; - CHECK-SHIFT makes sure that the negated shift count used by the second
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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9 ; RLL is set up correctly. The negation is independent of the NILL and L
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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10 ; tested in CHECK. CHECK-SHIFT also checks that %r3 is not modified before
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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11 ; being used in the RISBG (in contrast to things like atomic addition,
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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12 ; which shift %r3 left so that %b is at the high end of the word).
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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13 define i16 @f1(i16 *%src, i16 %b) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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14 ; CHECK-LABEL: f1:
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15 ; CHECK: risbg [[RISBG:%r[1-9]+]], %r2, 0, 189, 0{{$}}
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16 ; CHECK-DAG: sll %r2, 3
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17 ; CHECK-DAG: l [[OLD:%r[0-9]+]], 0([[RISBG]])
0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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18 ; CHECK: [[LABEL:\.[^:]*]]:
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19 ; CHECK: rll [[ROT:%r[0-9]+]], [[OLD]], 0(%r2)
0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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20 ; CHECK: risbg [[ROT]], %r3, 32, 47, 16
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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21 ; CHECK: rll [[NEW:%r[0-9]+]], [[ROT]], 0({{%r[1-9]+}})
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22 ; CHECK: cs [[OLD]], [[NEW]], 0([[RISBG]])
0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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23 ; CHECK: jl [[LABEL]]
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24 ; CHECK: rll %r2, [[OLD]], 16(%r2)
0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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25 ; CHECK: br %r14
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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26 ;
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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27 ; CHECK-SHIFT-LABEL: f1:
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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28 ; CHECK-SHIFT-NOT: %r3
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29 ; CHECK-SHIFT: sll %r2, 3
0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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30 ; CHECK-SHIFT-NOT: %r3
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31 ; CHECK-SHIFT: lcr [[NEGSHIFT:%r[1-9]+]], %r2
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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32 ; CHECK-SHIFT-NOT: %r3
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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33 ; CHECK-SHIFT: rll
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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34 ; CHECK-SHIFT-NOT: %r3
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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35 ; CHECK-SHIFT: risbg {{%r[0-9]+}}, %r3, 32, 47, 16
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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36 ; CHECK-SHIFT: rll {{%r[0-9]+}}, {{%r[0-9]+}}, 0([[NEGSHIFT]])
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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37 ; CHECK-SHIFT: rll
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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38 ; CHECK-SHIFT: br %r14
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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39 %res = atomicrmw xchg i16 *%src, i16 %b seq_cst
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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40 ret i16 %res
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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41 }
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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42
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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43 ; Check exchange with a constant. We should force the constant into
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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44 ; a register and use the sequence above.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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45 define i16 @f2(i16 *%src) {
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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46 ; CHECK-LABEL: f2:
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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47 ; CHECK: lhi [[VALUE:%r[0-9]+]], -25536
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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48 ; CHECK: risbg {{%r[0-9]+}}, [[VALUE]], 32, 47, 16
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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49 ; CHECK: br %r14
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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50 ;
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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51 ; CHECK-SHIFT-LABEL: f2:
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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52 ; CHECK-SHIFT: br %r14
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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53 %res = atomicrmw xchg i16 *%src, i16 40000 seq_cst
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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54 ret i16 %res
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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55 }