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view clang/test/CodeGenCXX/cxx1y-initializer-aggregate.cpp @ 252:1f2b6ac9f198 llvm-original
LLVM16-1
author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Fri, 18 Aug 2023 09:04:13 +0900 (2023-08-18) |
parents | c4bab56944e8 |
children |
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// RUN: %clang_cc1 -std=c++1y %s -triple x86_64-linux-gnu -emit-llvm -o - | FileCheck %s struct A { int n = 0; const char *p; char k = p[n]; int f(); int x = f(); union { char c; double d = 1.0; }; }; int f(); union B { int a; int f(); int b = f(); }; A a { .p = "foobar" }; A b { 4, "bazquux", .x = 42, .c = 9 }; A c { 1, 0, 'A', f(), { 3 } }; // CHECK: @[[STR_A:.*]] = {{.*}} [7 x i8] c"foobar\00" // CHECK: @a ={{.*}} global {{.*}} zeroinitializer // @b has a constant initializer // CHECK: @[[STR_B:.*]] = {{.*}} [8 x i8] c"bazquux\00" // CHECK: @b ={{.*}} global {{.*}} i32 4, {{.*}} @[[STR_B]], i8 117, i32 42, {{.*}} i8 9 B x; B y {}; B z { 1 }; // CHECK: @z ={{.*}} global {{.*}} { i32 1 } // Brace initialization should initialize the first field even though it is // unnamed. union C { struct { int C::*memptr; }; }; C n{}; // CHECK: @n ={{.*}} global %union.C { %struct.anon { i64 -1 } }, align 8 // Initialization of 'a': // CHECK: store i32 0, ptr @a // CHECK: store ptr @[[STR_A]], ptr getelementptr inbounds ({{.*}} @a, i32 0, i32 1) // CHECK: load ptr, ptr getelementptr inbounds ({{.*}} @a, i32 0, i32 1) // CHECK: load i32, ptr @a // CHECK: getelementptr inbounds i8, ptr %{{.*}}, {{.*}} %{{.*}} // CHECK: store i8 %{{.*}}, ptr getelementptr inbounds ({{.*}} @a, i32 0, i32 2) // CHECK: call noundef i32 @_ZN1A1fEv({{.*}} @a) // CHECK: store i32 %{{.*}}, ptr getelementptr inbounds ({{.*}}, ptr @a, i32 0, i32 3) // CHECK: store double 1.000000e+00, ptr getelementptr inbounds ({{.*}} @a, i32 0, i32 4) // No dynamic initialization of 'b': // CHECK-NOT: @b // Initialization of 'c': // CHECK: store i32 1, ptr @c // CHECK: store ptr null, ptr getelementptr inbounds ({{.*}} @c, i32 0, i32 1) // CHECK-NOT: load // CHECK: store i8 65, ptr getelementptr inbounds ({{.*}} @c, i32 0, i32 2) // CHECK: call noundef i32 @_Z1fv() // CHECK: store i32 %{{.*}}, ptr getelementptr inbounds ({{.*}}, ptr @c, i32 0, i32 3) // CHECK-NOT: C1Ev // CHECK: store i8 3, ptr {{.*}} @c, i32 0, i32 4) // CHECK: call void @_ZN1BC1Ev({{.*}} @x) // CHECK: call noundef i32 @_ZN1B1fEv({{.*}} @y) // CHECK: store i32 %{{.*}}, ptr @y