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annotate test/CodeGen/Generic/add-with-overflow.ll @ 95:afa8332a0e37 LLVM3.8

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LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
parents 95c75e76d11b
children
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95c75e76d11b LLVM 3.4
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1 ; RUN: llc < %s
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2 ; RUN: llc < %s -fast-isel
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3
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4 @ok = internal constant [4 x i8] c"%d\0A\00"
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5 @no = internal constant [4 x i8] c"no\0A\00"
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7 define i1 @func1(i32 %v1, i32 %v2) nounwind {
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8 entry:
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9 %t = call {i32, i1} @llvm.sadd.with.overflow.i32(i32 %v1, i32 %v2)
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10 %sum = extractvalue {i32, i1} %t, 0
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11 %obit = extractvalue {i32, i1} %t, 1
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12 br i1 %obit, label %overflow, label %normal
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14 normal:
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15 %t1 = tail call i32 (i8*, ...) @printf( i8* getelementptr ([4 x i8], [4 x i8]* @ok, i32 0, i32 0), i32 %sum ) nounwind
0
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16 ret i1 true
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18 overflow:
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19 %t2 = tail call i32 (i8*, ...) @printf( i8* getelementptr ([4 x i8], [4 x i8]* @no, i32 0, i32 0) ) nounwind
0
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20 ret i1 false
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21 }
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23 define i1 @func2(i32 %v1, i32 %v2) nounwind {
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24 entry:
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25 %t = call {i32, i1} @llvm.uadd.with.overflow.i32(i32 %v1, i32 %v2)
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26 %sum = extractvalue {i32, i1} %t, 0
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27 %obit = extractvalue {i32, i1} %t, 1
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28 br i1 %obit, label %overflow, label %normal
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30 normal:
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31 %t1 = tail call i32 (i8*, ...) @printf( i8* getelementptr ([4 x i8], [4 x i8]* @ok, i32 0, i32 0), i32 %sum ) nounwind
0
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32 ret i1 true
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33
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34 overflow:
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35 %t2 = tail call i32 (i8*, ...) @printf( i8* getelementptr ([4 x i8], [4 x i8]* @no, i32 0, i32 0) ) nounwind
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36 ret i1 false
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37 }
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39 declare i32 @printf(i8*, ...) nounwind
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40 declare {i32, i1} @llvm.sadd.with.overflow.i32(i32, i32)
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41 declare {i32, i1} @llvm.uadd.with.overflow.i32(i32, i32)