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annotate test/CodeGen/SystemZ/int-sub-08.ll @ 0:95c75e76d11b LLVM3.4

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LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
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95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; Test the three-operand forms of subtraction.
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2 ;
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3 ; RUN: llc < %s -mtriple=s390x-linux-gnu -mcpu=z196 | FileCheck %s
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4
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5 ; Check SRK.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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6 define i32 @f1(i32 %a, i32 %b, i32 %c) {
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7 ; CHECK-LABEL: f1:
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8 ; CHECK: srk %r2, %r3, %r4
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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9 ; CHECK: br %r14
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10 %sub = sub i32 %b, %c
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11 ret i32 %sub
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12 }
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13
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14 ; Check that we can still use SR in obvious cases.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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15 define i32 @f2(i32 %a, i32 %b) {
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16 ; CHECK-LABEL: f2:
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17 ; CHECK: sr %r2, %r3
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18 ; CHECK: br %r14
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19 %sub = sub i32 %a, %b
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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20 ret i32 %sub
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21 }
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22
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23 ; Check SGRK.
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24 define i64 @f3(i64 %a, i64 %b, i64 %c) {
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25 ; CHECK-LABEL: f3:
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26 ; CHECK: sgrk %r2, %r3, %r4
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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27 ; CHECK: br %r14
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28 %sub = sub i64 %b, %c
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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29 ret i64 %sub
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30 }
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31
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32 ; Check that we can still use SGR in obvious cases.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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33 define i64 @f4(i64 %a, i64 %b) {
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34 ; CHECK-LABEL: f4:
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35 ; CHECK: sgr %r2, %r3
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36 ; CHECK: br %r14
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37 %sub = sub i64 %a, %b
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38 ret i64 %sub
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39 }