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[OpenCL] Supports optional image types in C++ for OpenCL 2021 

Adds support for a feature macro `__opencl_c_images` in C++ for
OpenCL 2021 enabling a respective optional core feature from
OpenCL 3.0.

This change aims to achieve compatibility between C++ for OpenCL
2021 and OpenCL 3.0.

Differential Revision: https://reviews.llvm.org/D109002
This commit is contained in:
Justas Janickas 2021-08-31 14:19:27 +01:00
parent 18655140d6
commit 3b9470a6c4
2 changed files with 8 additions and 1 deletions
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7
clang/lib/Sema/SemaType.cpp
View File

@ -1732,7 +1732,12 @@ static QualType ConvertDeclSpecToType(TypeProcessingState &state) {
if (S.getLangOpts().OpenCL) {
const auto &OpenCLOptions = S.getOpenCLOptions();
// FIXME: both variables IsOpenCLC30 and IsOpenCLC30Compatible should be
// unified into one when __opencl_c_3d_image_writes option is enabled in
// C++ for OpenCL 2021
bool IsOpenCLC30 = (S.getLangOpts().OpenCLVersion == 300);
bool IsOpenCLC30Compatible =
S.getLangOpts().getOpenCLCompatibleVersion() == 300;
// OpenCL C v3.0 s6.3.3 - OpenCL image types require __opencl_c_images
// support.
// OpenCL C v3.0 s6.2.1 - OpenCL 3d image write types requires support
@ -1741,7 +1746,7 @@ static QualType ConvertDeclSpecToType(TypeProcessingState &state) {
// that support OpenCL 3.0, cl_khr_3d_image_writes must be returned when and
// only when the optional feature is supported
if ((Result->isImageType() || Result->isSamplerT()) &&
(IsOpenCLC30 &&
(IsOpenCLC30Compatible &&
!OpenCLOptions.isSupported("__opencl_c_images", S.getLangOpts()))) {
S.Diag(DS.getTypeSpecTypeLoc(), diag::err_opencl_requires_extension)
<< 0 << Result << "__opencl_c_images";

2
clang/test/SemaOpenCL/unsupported-image.cl
View File

@ -1,6 +1,8 @@
// RUN: %clang_cc1 -triple spir-unknown-unknown -verify -cl-std=CL3.0 -cl-ext=-__opencl_c_images,-__opencl_c_read_write_images,-cl_khr_3d_image_writes,-__opencl_c_3d_image_writes %s
// RUN: %clang_cc1 -triple spir-unknown-unknown -verify -cl-std=CL3.0 -cl-ext=+__opencl_c_images,+__opencl_c_read_write_images,+cl_khr_3d_image_writes,+__opencl_c_3d_image_writes %s
// RUN: %clang_cc1 -triple spir-unknown-unknown -verify -cl-std=CL3.0 -cl-ext=+__opencl_c_images,+__opencl_c_read_write_images,-cl_khr_3d_image_writes,-__opencl_c_3d_image_writes %s
// RUN: %clang_cc1 -triple spir-unknown-unknown -verify -cl-std=clc++2021 -cl-ext=-__opencl_c_images,-__opencl_c_read_write_images,-cl_khr_3d_image_writes,-__opencl_c_3d_image_writes %s
// RUN: %clang_cc1 -triple spir-unknown-unknown -verify -cl-std=clc++2021 -cl-ext=+__opencl_c_images %s
#if defined(__opencl_c_images) && defined(__opencl_c_3d_image_writes)
//expected-no-diagnostics