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llvm-project/clang/test/CodeGenCXX/char8_t.cpp

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Use _Q as MS ABI mangling for char8_t. Thanks to Yuriy Solodkyy for letting us know the mangling here. llvm-svn: 354633
2019-02-22 07:04:35 +08:00
// RUN: %clang_cc1 -std=c++17 -emit-llvm -fchar8_t -triple x86_64-linux %s -o - | FileCheck %s --check-prefix=ITANIUM
// RUN: %clang_cc1 -std=c++17 -emit-llvm -fchar8_t -triple x86_64-windows %s -o - | FileCheck %s --check-prefix=MSABI
Implement P0482R2, support for char8_t type. This is not yet part of any C++ working draft, and so is controlled by the flag -fchar8_t rather than a -std= flag. (The GCC implementation is controlled by a flag with the same name.) This implementation is experimental, and will be removed or revised substantially to match the proposal as it makes its way through the C++ committee. llvm-svn: 331244
2018-05-01 13:02:45 +08:00
[test] Add {{.*}} to make ELF tests immune to dso_local/dso_preemptable/(none) differences For a default visibility external linkage definition, dso_local is set for ELF -fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences. To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition, which sets dso_local for default visibility external linkage definitions. To make this flip smooth and enable future (dso_local as definition default), this patch replaces (function) `define ` with `define{{.*}} `, (variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
2020-12-31 16:27:11 +08:00
// ITANIUM: define{{.*}} void @_Z1fDu(
Use _Q as MS ABI mangling for char8_t. Thanks to Yuriy Solodkyy for letting us know the mangling here. llvm-svn: 354633
2019-02-22 07:04:35 +08:00
// MSABI: define {{.*}}void @"?f@@YAX_Q@Z"(
void f(char8_t c) {}
Implement P0482R2, support for char8_t type. This is not yet part of any C++ working draft, and so is controlled by the flag -fchar8_t rather than a -std= flag. (The GCC implementation is controlled by a flag with the same name.) This implementation is experimental, and will be removed or revised substantially to match the proposal as it makes its way through the C++ committee. llvm-svn: 331244
2018-05-01 13:02:45 +08:00
Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition" This reverts commit 789a46f2d742e11edaade28cb59a0f4d2a1d770e. Accidentally committed.
2020-02-04 02:09:39 +08:00
// ITANIUM: define weak_odr void @_Z1gIiEvDTplplcvT__ELA4_KDuELDu114EE(
Use _Q as MS ABI mangling for char8_t. Thanks to Yuriy Solodkyy for letting us know the mangling here. llvm-svn: 354633
2019-02-22 07:04:35 +08:00
// MSABI: define weak_odr {{.*}}void @"??$g@H@@YAXPEB_Q@Z"(
Implement P0482R2, support for char8_t type. This is not yet part of any C++ working draft, and so is controlled by the flag -fchar8_t rather than a -std= flag. (The GCC implementation is controlled by a flag with the same name.) This implementation is experimental, and will be removed or revised substantially to match the proposal as it makes its way through the C++ committee. llvm-svn: 331244
2018-05-01 13:02:45 +08:00
template<typename T> void g(decltype(T() + u8"foo" + u8'r')) {}
template void g<int>(const char8_t*);