clang/test/CodeGenCXX/member-alignment.cpp

   1 // RUN: %clang_cc1 -emit-llvm -triple wasm32-unknown-unknown %s -o - | \
   2 // RUN: FileCheck -check-prefix CHECK-NOEXTRAALIGN %s
   3 // RUN: %clang_cc1 -emit-llvm -triple wasm64-unknown-unknown %s -o - | \
   4 // RUN: FileCheck -check-prefix CHECK-NOEXTRAALIGN %s
   5 // RUN: %clang_cc1 -emit-llvm -triple ppc64le-unknown-linux-gnu %s -o - | \
   6 // RUN: FileCheck -check-prefix CHECK-NOEXTRAALIGN %s
   7 // RUN: %clang_cc1 -emit-llvm -triple arm64-unknown-linux-gnu %s -o - | \
   8 // RUN: FileCheck -check-prefix CHECK-EXTRAALIGN %s
   9 // RUN: %clang_cc1 -emit-llvm -triple arm64-apple-ios %s -o - | \
  10 // RUN: FileCheck -check-prefix CHECK-EXTRAALIGN %s
  11 // RUN: %clang_cc1 -emit-llvm -triple aarch64-unknown-linux-gnu %s -o - | \
  12 // RUN: FileCheck -check-prefix CHECK-EXTRAALIGN %s
  13 // RUN: %clang_cc1 -emit-llvm -triple mips-unknown-linux-gnu %s -o - | \
  14 // RUN: FileCheck -check-prefix CHECK-EXTRAALIGN %s
  15 // RUN: %clang_cc1 -emit-llvm -triple x86_64-unknown-fuchsia %s -o - | \
  16 // RUN: FileCheck -check-prefix CHECK-EXTRAALIGN %s
  17 // RUN: %clang_cc1 -emit-llvm -triple powerpc-unknown-aix %s -o - | \
  18 // RUN: FileCheck -check-prefix CHECK-NOEXTRAALIGN %s
  19 // RUN: %clang_cc1 -emit-llvm -triple x86_64-unknown-windows-msvc %s -o - | \
  20 // RUN: FileCheck -check-prefix CHECK-MSVC %s
  21
  22 class t {
  23 public:
  24   virtual void foo(void);
  25   void bar(void);
  26   void baz(void);
  27 };
  28
  29 // The original alignment is observed if >=2, regardless of any extra alignment
  30 // of member functions.
  31 [[gnu::aligned(16)]]
  32 void
  33 t::baz(void) {
  34 // CHECK-NOEXTRAALIGN: @_ZN1t3bazEv({{.*}}) #0 align 16 {
  35 // CHECK-EXTRAALIGN: @_ZN1t3bazEv({{.*}}) #0 align 16 {
  36 // CHECK-MSVC: @"?baz@t@@QEAAXXZ"({{.*}}) #0 align 16 {
  37 }
  38
  39 void
  40 t::bar(void) {
  41 // CHECK-NOEXTRAALIGN: @_ZN1t3barEv({{.*}}) #0 {
  42 // CHECK-EXTRAALIGN: @_ZN1t3barEv({{.*}}) #0 align 2 {
  43 // CHECK-MSVC: @"?bar@t@@QEAAXXZ"({{.*}}) #0 align 2 {
  44 }
  45
  46 void
  47 t::foo(void) {
  48 // CHECK-NOEXTRAALIGN: @_ZN1t3fooEv({{.*}}) unnamed_addr #0 {
  49 // CHECK-EXTRAALIGN: @_ZN1t3fooEv({{.*}}) unnamed_addr #0 align 2 {
  50 // CHECK-MSVC: @"?foo@t@@UEAAXXZ"({{.*}}) unnamed_addr #0 align 2 {
  51 }