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annotate test/CodeGen/Generic/add-with-overflow-24.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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children afa8332a0e37
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95c75e76d11b LLVM 3.4
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1 ; RUN: llc < %s
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2
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3 @ok = internal constant [4 x i8] c"%d\0A\00"
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4 @no = internal constant [4 x i8] c"no\0A\00"
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5
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6 define i1 @func1(i24 signext %v1, i24 signext %v2) nounwind {
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7 entry:
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8 %t = call {i24, i1} @llvm.sadd.with.overflow.i24(i24 %v1, i24 %v2)
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9 %sum = extractvalue {i24, i1} %t, 0
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10 %sum32 = sext i24 %sum to i32
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11 %obit = extractvalue {i24, i1} %t, 1
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12 br i1 %obit, label %overflow, label %normal
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13
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14 normal:
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15 %t1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @ok, i32 0, i32 0), i32 %sum32 ) nounwind
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16 ret i1 true
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17
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18 overflow:
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19 %t2 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @no, i32 0, i32 0) ) nounwind
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20 ret i1 false
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21 }
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22
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23 define i1 @func2(i24 zeroext %v1, i24 zeroext %v2) nounwind {
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24 entry:
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25 %t = call {i24, i1} @llvm.uadd.with.overflow.i24(i24 %v1, i24 %v2)
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26 %sum = extractvalue {i24, i1} %t, 0
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27 %sum32 = zext i24 %sum to i32
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28 %obit = extractvalue {i24, i1} %t, 1
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29 br i1 %obit, label %carry, label %normal
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30
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31 normal:
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32 %t1 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @ok, i32 0, i32 0), i32 %sum32 ) nounwind
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33 ret i1 true
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34
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35 carry:
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36 %t2 = tail call i32 (i8*, ...)* @printf( i8* getelementptr ([4 x i8]* @no, i32 0, i32 0) ) nounwind
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37 ret i1 false
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38 }
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40 declare i32 @printf(i8*, ...) nounwind
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41 declare {i24, i1} @llvm.sadd.with.overflow.i24(i24, i24)
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42 declare {i24, i1} @llvm.uadd.with.overflow.i24(i24, i24)