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annotate clang/test/CodeGen/object-size.cpp @ 207:2e18cbf3894f

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LLVM12
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Tue, 08 Jun 2021 06:07:14 +0900
parents 1d019706d866
children c4bab56944e8
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1 // RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - %s | FileCheck %s
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2
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3 // C++-specific tests for __builtin_object_size
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4
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5 int gi;
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6
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7 // CHECK-LABEL: define{{.*}} void @_Z5test1v()
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8 void test1() {
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9 // Guaranteeing that our cast removal logic doesn't break more interesting
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10 // cases.
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11 struct A { int a; };
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12 struct B { int b; };
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13 struct C: public A, public B {};
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14
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15 C c;
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16
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17 // CHECK: store i32 8
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18 gi = __builtin_object_size(&c, 0);
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19 // CHECK: store i32 8
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20 gi = __builtin_object_size((A*)&c, 0);
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21 // CHECK: store i32 4
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22 gi = __builtin_object_size((B*)&c, 0);
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23
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24 // CHECK: store i32 8
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25 gi = __builtin_object_size((char*)&c, 0);
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26 // CHECK: store i32 8
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27 gi = __builtin_object_size((char*)(A*)&c, 0);
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28 // CHECK: store i32 4
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29 gi = __builtin_object_size((char*)(B*)&c, 0);
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30 }
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31
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32 // CHECK-LABEL: define{{.*}} void @_Z5test2v()
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33 void test2() {
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34 struct A { char buf[16]; };
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35 struct B : A {};
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36 struct C { int i; B bs[1]; } *c;
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37
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38 // CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1 false)
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39 gi = __builtin_object_size(&c->bs[0], 0);
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40 // CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1 false)
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41 gi = __builtin_object_size(&c->bs[0], 1);
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42 // CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true, i1 true, i1 false)
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43 gi = __builtin_object_size(&c->bs[0], 2);
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44 // CHECK: store i32 16
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45 gi = __builtin_object_size(&c->bs[0], 3);
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46
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47 // CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1 false)
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48 gi = __builtin_object_size((A*)&c->bs[0], 0);
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49 // CHECK: store i32 16
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50 gi = __builtin_object_size((A*)&c->bs[0], 1);
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51 // CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true, i1 true, i1 false)
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52 gi = __builtin_object_size((A*)&c->bs[0], 2);
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53 // CHECK: store i32 16
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54 gi = __builtin_object_size((A*)&c->bs[0], 3);
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55
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56 // CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 false, i1 true, i1 false)
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57 gi = __builtin_object_size(&c->bs[0].buf[0], 0);
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58 // CHECK: store i32 16
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59 gi = __builtin_object_size(&c->bs[0].buf[0], 1);
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60 // CHECK: call i64 @llvm.objectsize.i64.p0i8(i8* %{{.*}}, i1 true, i1 true, i1 false)
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61 gi = __builtin_object_size(&c->bs[0].buf[0], 2);
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62 // CHECK: store i32 16
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63 gi = __builtin_object_size(&c->bs[0].buf[0], 3);
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64 }