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annotate clang/test/CodeGenCXX/cxx1y-initializer-aggregate.cpp @ 252:1f2b6ac9f198 llvm-original

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LLVM16-1
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Fri, 18 Aug 2023 09:04:13 +0900
parents c4bab56944e8
children
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1f2b6ac9f198 LLVM16-1
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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1 // RUN: %clang_cc1 -std=c++1y %s -triple x86_64-linux-gnu -emit-llvm -o - | FileCheck %s
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2
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3 struct A {
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4 int n = 0;
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5 const char *p;
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6 char k = p[n];
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7 int f();
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8 int x = f();
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9 union {
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10 char c;
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11 double d = 1.0;
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12 };
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13 };
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14
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15 int f();
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16
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17 union B {
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18 int a;
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19 int f();
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20 int b = f();
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21 };
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22
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23 A a { .p = "foobar" };
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24 A b { 4, "bazquux", .x = 42, .c = 9 };
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25 A c { 1, 0, 'A', f(), { 3 } };
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26
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27 // CHECK: @[[STR_A:.*]] = {{.*}} [7 x i8] c"foobar\00"
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28 // CHECK: @a ={{.*}} global {{.*}} zeroinitializer
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29
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30 // @b has a constant initializer
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31 // CHECK: @[[STR_B:.*]] = {{.*}} [8 x i8] c"bazquux\00"
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32 // CHECK: @b ={{.*}} global {{.*}} i32 4, {{.*}} @[[STR_B]], i8 117, i32 42, {{.*}} i8 9
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33
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34 B x;
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35 B y {};
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36 B z { 1 };
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37 // CHECK: @z ={{.*}} global {{.*}} { i32 1 }
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38
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39 // Brace initialization should initialize the first field even though it is
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40 // unnamed.
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41 union C {
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42 struct {
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43 int C::*memptr;
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44 };
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45 };
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46
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47 C n{};
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48 // CHECK: @n ={{.*}} global %union.C { %struct.anon { i64 -1 } }, align 8
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49
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50 // Initialization of 'a':
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51
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52 // CHECK: store i32 0, ptr @a
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53 // CHECK: store ptr @[[STR_A]], ptr getelementptr inbounds ({{.*}} @a, i32 0, i32 1)
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54 // CHECK: load ptr, ptr getelementptr inbounds ({{.*}} @a, i32 0, i32 1)
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55 // CHECK: load i32, ptr @a
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56 // CHECK: getelementptr inbounds i8, ptr %{{.*}}, {{.*}} %{{.*}}
1f2b6ac9f198 LLVM16-1
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57 // CHECK: store i8 %{{.*}}, ptr getelementptr inbounds ({{.*}} @a, i32 0, i32 2)
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58 // CHECK: call noundef i32 @_ZN1A1fEv({{.*}} @a)
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59 // CHECK: store i32 %{{.*}}, ptr getelementptr inbounds ({{.*}}, ptr @a, i32 0, i32 3)
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60 // CHECK: store double 1.000000e+00, ptr getelementptr inbounds ({{.*}} @a, i32 0, i32 4)
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61
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62 // No dynamic initialization of 'b':
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63
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64 // CHECK-NOT: @b
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65
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66 // Initialization of 'c':
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67
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68 // CHECK: store i32 1, ptr @c
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69 // CHECK: store ptr null, ptr getelementptr inbounds ({{.*}} @c, i32 0, i32 1)
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70 // CHECK-NOT: load
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71 // CHECK: store i8 65, ptr getelementptr inbounds ({{.*}} @c, i32 0, i32 2)
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72 // CHECK: call noundef i32 @_Z1fv()
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73 // CHECK: store i32 %{{.*}}, ptr getelementptr inbounds ({{.*}}, ptr @c, i32 0, i32 3)
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74 // CHECK-NOT: C1Ev
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75 // CHECK: store i8 3, ptr {{.*}} @c, i32 0, i32 4)
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77 // CHECK: call void @_ZN1BC1Ev({{.*}} @x)
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79 // CHECK: call noundef i32 @_ZN1B1fEv({{.*}} @y)
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80 // CHECK: store i32 %{{.*}}, ptr @y