clang/test/SemaCXX/warn-overaligned-type-thrown.cpp

   1 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.13.99 -verify -fsyntax-only -std=c++11 -fcxx-exceptions -fexceptions -DUNDERALIGNED %s
   2 // RUN: %clang_cc1 -triple arm64-apple-ios10 -verify -fsyntax-only -std=c++11 -fcxx-exceptions -fexceptions -DUNDERALIGNED %s
   3 // RUN: %clang_cc1 -triple arm64-apple-tvos10 -verify -fsyntax-only -std=c++11 -fcxx-exceptions -fexceptions -DUNDERALIGNED %s
   4 // RUN: %clang_cc1 -triple arm64-apple-watchos4 -verify -fsyntax-only -std=c++11 -fcxx-exceptions -fexceptions -DUNDERALIGNED %s
   5 // RUN: %clang_cc1 -triple arm-linux-gnueabi -verify -fsyntax-only -std=c++11 -fcxx-exceptions -fexceptions  -DUNDERALIGNED %s
   6 // RUN: %clang_cc1 -triple thumbv7em-apple-unknown-macho -verify -fsyntax-only -std=c++11 -fcxx-exceptions -fexceptions -DUNDERALIGNED %s
   7 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.14 -verify -fsyntax-only -std=c++11 -fcxx-exceptions -fexceptions %s
   8 // RUN: %clang_cc1 -triple arm64-apple-ios12 -verify -fsyntax-only -std=c++11 -fcxx-exceptions -fexceptions %s
   9 // RUN: %clang_cc1 -triple arm64-apple-tvos12 -verify -fsyntax-only -std=c++11 -fcxx-exceptions -fexceptions %s
  10 // RUN: %clang_cc1 -triple arm64-apple-watchos5 -verify -fsyntax-only -std=c++11 -fcxx-exceptions -fexceptions %s
  11 // RUN: %clang_cc1 -triple arm-linux-androideabi -verify -fsyntax-only -std=c++11 -fcxx-exceptions -fexceptions %s
  12 // RUN: %clang_cc1 -triple aarch64 -verify -fsyntax-only -std=c++11 -fcxx-exceptions -fexceptions %s
  13 // RUN: %clang_cc1 -triple mipsel-linux-gnu -verify -fsyntax-only -std=c++11 -fcxx-exceptions -fexceptions %s
  14 // RUN: %clang_cc1 -triple mips64el-linux-gnu -verify -fsyntax-only -std=c++11 -fcxx-exceptions -fexceptions %s
  15 // RUN: %clang_cc1 -triple wasm32-unknown-unknown -verify -fsyntax-only -std=c++11 -fcxx-exceptions -fexceptions %s
  16 // RUN: %clang_cc1 -triple wasm64-unknown-unknown -verify -fsyntax-only -std=c++11 -fcxx-exceptions -fexceptions %s
  17 // RUN: %clang_cc1 -triple x86_64-apple-macosx10.14 -verify -fsyntax-only -std=c++11 -fcxx-exceptions -fexceptions -Wno-underaligned-exception-object -DNODIAG %s
  18 // RUN: %clang_cc1 -triple x86_64-windows-msvc -verify -fsyntax-only -std=c++11 -fcxx-exceptions -fexceptions -DNODIAG %s
  19
  20 struct S0 {
  21   S0();
  22   int m;
  23 };
  24
  25 struct Overaligned1 {
  26   Overaligned1();
  27   int __attribute__((aligned(16))) m;
  28 };
  29
  30 struct __attribute__((aligned(16))) Overaligned2 {
  31   Overaligned2();
  32   int m;
  33 };
  34
  35 struct Overaligned3 {
  36   Overaligned3();
  37   int __attribute__((aligned(64))) m;
  38 };
  39
  40 void test0() {
  41   throw S0();
  42 }
  43
  44 void test1() {
  45   throw Overaligned1();
  46 }
  47
  48 void test2() {
  49   throw Overaligned2();
  50 }
  51
  52 void test3() {
  53   throw Overaligned3();
  54 }
  55
  56 #if defined(NODIAG)
  57 // expected-no-diagnostics
  58 #elif defined(UNDERALIGNED)
  59 // expected-warning@-14 {{underaligned exception object thrown}}
  60 // expected-note@-15 {{(16 bytes) is larger than the supported alignment of C++ exception objects on this target (8 bytes)}}
  61 // expected-warning@-12 {{underaligned exception object thrown}}
  62 // expected-note@-13 {{(16 bytes) is larger than the supported alignment of C++ exception objects on this target (8 bytes)}}
  63 // expected-warning@-10 {{underaligned exception object thrown}}
  64 // expected-note@-11 {{(64 bytes) is larger than the supported alignment of C++ exception objects on this target (8 bytes)}}
  65 #else
  66 // expected-warning@-13 {{underaligned exception object thrown}}
  67 // expected-note@-14 {{(64 bytes) is larger than the supported alignment of C++ exception objects on this target (16 bytes)}}
  68 #endif