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zdray/thirdparty/ShaderCompiler/glslang/MachineIndependent/Versions.cpp
Magnus Norddahl 410a0e0c7c Add vulkan thirdparty files
2021-10-28 23:26:53 +02:00

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//
// Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
// Copyright (C) 2012-2013 LunarG, Inc.
// Copyright (C) 2017 ARM Limited.
// Copyright (C) 2015-2018 Google, Inc.
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
//
// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
// ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
//
// Help manage multiple profiles, versions, extensions etc.
//
// These don't return error codes, as the presumption is parsing will
// always continue as if the tested feature were enabled, and thus there
// is no error recovery needed.
//
//
// HOW TO add a feature enabled by an extension.
//
// To add a new hypothetical "Feature F" to the front end, where an extension
// "XXX_extension_X" can be used to enable the feature, do the following.
//
// OVERVIEW: Specific features are what are error-checked for, not
// extensions: A specific Feature F might be enabled by an extension, or a
// particular version in a particular profile, or a stage, or combinations, etc.
//
// The basic mechanism is to use the following to "declare" all the things that
// enable/disable Feature F, in a code path that implements Feature F:
//
// requireProfile()
// profileRequires()
// requireStage()
// checkDeprecated()
// requireNotRemoved()
// requireExtensions()
//
// Typically, only the first two calls are needed. They go into a code path that
// implements Feature F, and will log the proper error/warning messages. Parsing
// will then always continue as if the tested feature was enabled.
//
// There is typically no if-testing or conditional parsing, just insertion of the calls above.
// However, if symbols specific to the extension are added (step 5), they will
// only be added under tests that the minimum version and profile are present.
//
// 1) Add a symbol name for the extension string at the bottom of Versions.h:
//
// const char* const XXX_extension_X = "XXX_extension_X";
//
// 2) Add extension initialization to TParseVersions::initializeExtensionBehavior(),
// the first function below:
//
// extensionBehavior[XXX_extension_X] = EBhDisable;
//
// 3) Add any preprocessor directives etc. in the next function, TParseVersions::getPreamble():
//
// "#define XXX_extension_X 1\n"
//
// The new-line is important, as that ends preprocess tokens.
//
// 4) Insert a profile check in the feature's path (unless all profiles support the feature,
// for some version level). That is, call requireProfile() to constrain the profiles, e.g.:
//
// // ... in a path specific to Feature F...
// requireProfile(loc,
// ECoreProfile | ECompatibilityProfile,
// "Feature F");
//
// 5) For each profile that supports the feature, insert version/extension checks:
//
// The mostly likely scenario is that Feature F can only be used with a
// particular profile if XXX_extension_X is present or the version is
// high enough that the core specification already incorporated it.
//
// // following the requireProfile() call...
// profileRequires(loc,
// ECoreProfile | ECompatibilityProfile,
// 420, // 0 if no version incorporated the feature into the core spec.
// XXX_extension_X, // can be a list of extensions that all add the feature
// "Feature F Description");
//
// This allows the feature if either A) one of the extensions is enabled or
// B) the version is high enough. If no version yet incorporates the feature
// into core, pass in 0.
//
// This can be called multiple times, if different profiles support the
// feature starting at different version numbers or with different
// extensions.
//
// This must be called for each profile allowed by the initial call to requireProfile().
//
// Profiles are all masks, which can be "or"-ed together.
//
// ENoProfile
// ECoreProfile
// ECompatibilityProfile
// EEsProfile
//
// The ENoProfile profile is only for desktop, before profiles showed up in version 150;
// All other #version with no profile default to either es or core, and so have profiles.
//
// You can select all but a particular profile using ~. The following basically means "desktop":
//
// ~EEsProfile
//
// 6) If built-in symbols are added by the extension, add them in Initialize.cpp: Their use
// will be automatically error checked against the extensions enabled at that moment.
// see the comment at the top of Initialize.cpp for where to put them. Establish them at
// the earliest release that supports the extension. Then, tag them with the
// set of extensions that both enable them and are necessary, given the version of the symbol
// table. (There is a different symbol table for each version.)
//
#include "parseVersions.h"
#include "localintermediate.h"
namespace glslang {
//
// Initialize all extensions, almost always to 'disable', as once their features
// are incorporated into a core version, their features are supported through allowing that
// core version, not through a pseudo-enablement of the extension.
//
void TParseVersions::initializeExtensionBehavior()
{
extensionBehavior[E_GL_OES_texture_3D] = EBhDisable;
extensionBehavior[E_GL_OES_standard_derivatives] = EBhDisable;
extensionBehavior[E_GL_EXT_frag_depth] = EBhDisable;
extensionBehavior[E_GL_OES_EGL_image_external] = EBhDisable;
extensionBehavior[E_GL_OES_EGL_image_external_essl3] = EBhDisable;
extensionBehavior[E_GL_EXT_YUV_target] = EBhDisable;
extensionBehavior[E_GL_EXT_shader_texture_lod] = EBhDisable;
extensionBehavior[E_GL_EXT_shadow_samplers] = EBhDisable;
extensionBehavior[E_GL_ARB_texture_rectangle] = EBhDisable;
extensionBehavior[E_GL_3DL_array_objects] = EBhDisable;
extensionBehavior[E_GL_ARB_shading_language_420pack] = EBhDisable;
extensionBehavior[E_GL_ARB_texture_gather] = EBhDisable;
extensionBehavior[E_GL_ARB_gpu_shader5] = EBhDisablePartial;
extensionBehavior[E_GL_ARB_separate_shader_objects] = EBhDisable;
extensionBehavior[E_GL_ARB_compute_shader] = EBhDisable;
extensionBehavior[E_GL_ARB_tessellation_shader] = EBhDisable;
extensionBehavior[E_GL_ARB_enhanced_layouts] = EBhDisable;
extensionBehavior[E_GL_ARB_texture_cube_map_array] = EBhDisable;
extensionBehavior[E_GL_ARB_shader_texture_lod] = EBhDisable;
extensionBehavior[E_GL_ARB_explicit_attrib_location] = EBhDisable;
extensionBehavior[E_GL_ARB_shader_image_load_store] = EBhDisable;
extensionBehavior[E_GL_ARB_shader_atomic_counters] = EBhDisable;
extensionBehavior[E_GL_ARB_shader_draw_parameters] = EBhDisable;
extensionBehavior[E_GL_ARB_shader_group_vote] = EBhDisable;
extensionBehavior[E_GL_ARB_derivative_control] = EBhDisable;
extensionBehavior[E_GL_ARB_shader_texture_image_samples] = EBhDisable;
extensionBehavior[E_GL_ARB_viewport_array] = EBhDisable;
extensionBehavior[E_GL_ARB_gpu_shader_int64] = EBhDisable;
extensionBehavior[E_GL_ARB_shader_ballot] = EBhDisable;
extensionBehavior[E_GL_ARB_sparse_texture2] = EBhDisable;
extensionBehavior[E_GL_ARB_sparse_texture_clamp] = EBhDisable;
extensionBehavior[E_GL_ARB_shader_stencil_export] = EBhDisable;
// extensionBehavior[E_GL_ARB_cull_distance] = EBhDisable; // present for 4.5, but need extension control over block members
extensionBehavior[E_GL_ARB_post_depth_coverage] = EBhDisable;
extensionBehavior[E_GL_ARB_shader_viewport_layer_array] = EBhDisable;
extensionBehavior[E_GL_KHR_shader_subgroup_basic] = EBhDisable;
extensionBehavior[E_GL_KHR_shader_subgroup_vote] = EBhDisable;
extensionBehavior[E_GL_KHR_shader_subgroup_arithmetic] = EBhDisable;
extensionBehavior[E_GL_KHR_shader_subgroup_ballot] = EBhDisable;
extensionBehavior[E_GL_KHR_shader_subgroup_shuffle] = EBhDisable;
extensionBehavior[E_GL_KHR_shader_subgroup_shuffle_relative] = EBhDisable;
extensionBehavior[E_GL_KHR_shader_subgroup_clustered] = EBhDisable;
extensionBehavior[E_GL_KHR_shader_subgroup_quad] = EBhDisable;
extensionBehavior[E_GL_KHR_memory_scope_semantics] = EBhDisable;
extensionBehavior[E_GL_EXT_shader_atomic_int64] = EBhDisable;
extensionBehavior[E_GL_EXT_shader_non_constant_global_initializers] = EBhDisable;
extensionBehavior[E_GL_EXT_shader_image_load_formatted] = EBhDisable;
extensionBehavior[E_GL_EXT_post_depth_coverage] = EBhDisable;
extensionBehavior[E_GL_EXT_control_flow_attributes] = EBhDisable;
extensionBehavior[E_GL_EXT_nonuniform_qualifier] = EBhDisable;
extensionBehavior[E_GL_EXT_samplerless_texture_functions] = EBhDisable;
extensionBehavior[E_GL_EXT_scalar_block_layout] = EBhDisable;
extensionBehavior[E_GL_EXT_fragment_invocation_density] = EBhDisable;
extensionBehavior[E_GL_EXT_buffer_reference] = EBhDisable;
extensionBehavior[E_GL_EXT_shader_16bit_storage] = EBhDisable;
extensionBehavior[E_GL_EXT_shader_8bit_storage] = EBhDisable;
// #line and #include
extensionBehavior[E_GL_GOOGLE_cpp_style_line_directive] = EBhDisable;
extensionBehavior[E_GL_GOOGLE_include_directive] = EBhDisable;
#ifdef AMD_EXTENSIONS
extensionBehavior[E_GL_AMD_shader_ballot] = EBhDisable;
extensionBehavior[E_GL_AMD_shader_trinary_minmax] = EBhDisable;
extensionBehavior[E_GL_AMD_shader_explicit_vertex_parameter] = EBhDisable;
extensionBehavior[E_GL_AMD_gcn_shader] = EBhDisable;
extensionBehavior[E_GL_AMD_gpu_shader_half_float] = EBhDisable;
extensionBehavior[E_GL_AMD_texture_gather_bias_lod] = EBhDisable;
extensionBehavior[E_GL_AMD_gpu_shader_int16] = EBhDisable;
extensionBehavior[E_GL_AMD_shader_image_load_store_lod] = EBhDisable;
extensionBehavior[E_GL_AMD_shader_fragment_mask] = EBhDisable;
extensionBehavior[E_GL_AMD_gpu_shader_half_float_fetch] = EBhDisable;
#endif
#ifdef NV_EXTENSIONS
extensionBehavior[E_GL_NV_sample_mask_override_coverage] = EBhDisable;
extensionBehavior[E_SPV_NV_geometry_shader_passthrough] = EBhDisable;
extensionBehavior[E_GL_NV_viewport_array2] = EBhDisable;
extensionBehavior[E_GL_NV_stereo_view_rendering] = EBhDisable;
extensionBehavior[E_GL_NVX_multiview_per_view_attributes] = EBhDisable;
extensionBehavior[E_GL_NV_shader_atomic_int64] = EBhDisable;
extensionBehavior[E_GL_NV_conservative_raster_underestimation] = EBhDisable;
extensionBehavior[E_GL_NV_shader_noperspective_interpolation] = EBhDisable;
extensionBehavior[E_GL_NV_shader_subgroup_partitioned] = EBhDisable;
extensionBehavior[E_GL_NV_shading_rate_image] = EBhDisable;
extensionBehavior[E_GL_NV_ray_tracing] = EBhDisable;
extensionBehavior[E_GL_NV_fragment_shader_barycentric] = EBhDisable;
extensionBehavior[E_GL_NV_compute_shader_derivatives] = EBhDisable;
extensionBehavior[E_GL_NV_shader_texture_footprint] = EBhDisable;
extensionBehavior[E_GL_NV_mesh_shader] = EBhDisable;
#endif
// AEP
extensionBehavior[E_GL_ANDROID_extension_pack_es31a] = EBhDisable;
extensionBehavior[E_GL_KHR_blend_equation_advanced] = EBhDisable;
extensionBehavior[E_GL_OES_sample_variables] = EBhDisable;
extensionBehavior[E_GL_OES_shader_image_atomic] = EBhDisable;
extensionBehavior[E_GL_OES_shader_multisample_interpolation] = EBhDisable;
extensionBehavior[E_GL_OES_texture_storage_multisample_2d_array] = EBhDisable;
extensionBehavior[E_GL_EXT_geometry_shader] = EBhDisable;
extensionBehavior[E_GL_EXT_geometry_point_size] = EBhDisable;
extensionBehavior[E_GL_EXT_gpu_shader5] = EBhDisable;
extensionBehavior[E_GL_EXT_primitive_bounding_box] = EBhDisable;
extensionBehavior[E_GL_EXT_shader_io_blocks] = EBhDisable;
extensionBehavior[E_GL_EXT_tessellation_shader] = EBhDisable;
extensionBehavior[E_GL_EXT_tessellation_point_size] = EBhDisable;
extensionBehavior[E_GL_EXT_texture_buffer] = EBhDisable;
extensionBehavior[E_GL_EXT_texture_cube_map_array] = EBhDisable;
// OES matching AEP
extensionBehavior[E_GL_OES_geometry_shader] = EBhDisable;
extensionBehavior[E_GL_OES_geometry_point_size] = EBhDisable;
extensionBehavior[E_GL_OES_gpu_shader5] = EBhDisable;
extensionBehavior[E_GL_OES_primitive_bounding_box] = EBhDisable;
extensionBehavior[E_GL_OES_shader_io_blocks] = EBhDisable;
extensionBehavior[E_GL_OES_tessellation_shader] = EBhDisable;
extensionBehavior[E_GL_OES_tessellation_point_size] = EBhDisable;
extensionBehavior[E_GL_OES_texture_buffer] = EBhDisable;
extensionBehavior[E_GL_OES_texture_cube_map_array] = EBhDisable;
// EXT extensions
extensionBehavior[E_GL_EXT_device_group] = EBhDisable;
extensionBehavior[E_GL_EXT_multiview] = EBhDisable;
// OVR extensions
extensionBehavior[E_GL_OVR_multiview] = EBhDisable;
extensionBehavior[E_GL_OVR_multiview2] = EBhDisable;
// explicit types
extensionBehavior[E_GL_EXT_shader_explicit_arithmetic_types] = EBhDisable;
extensionBehavior[E_GL_EXT_shader_explicit_arithmetic_types_int8] = EBhDisable;
extensionBehavior[E_GL_EXT_shader_explicit_arithmetic_types_int16] = EBhDisable;
extensionBehavior[E_GL_EXT_shader_explicit_arithmetic_types_int32] = EBhDisable;
extensionBehavior[E_GL_EXT_shader_explicit_arithmetic_types_int64] = EBhDisable;
extensionBehavior[E_GL_EXT_shader_explicit_arithmetic_types_float16] = EBhDisable;
extensionBehavior[E_GL_EXT_shader_explicit_arithmetic_types_float32] = EBhDisable;
extensionBehavior[E_GL_EXT_shader_explicit_arithmetic_types_float64] = EBhDisable;
}
// Get code that is not part of a shared symbol table, is specific to this shader,
// or needed by the preprocessor (which does not use a shared symbol table).
void TParseVersions::getPreamble(std::string& preamble)
{
if (profile == EEsProfile) {
preamble =
"#define GL_ES 1\n"
"#define GL_FRAGMENT_PRECISION_HIGH 1\n"
"#define GL_OES_texture_3D 1\n"
"#define GL_OES_standard_derivatives 1\n"
"#define GL_EXT_frag_depth 1\n"
"#define GL_OES_EGL_image_external 1\n"
"#define GL_OES_EGL_image_external_essl3 1\n"
"#define GL_EXT_YUV_target 1\n"
"#define GL_EXT_shader_texture_lod 1\n"
"#define GL_EXT_shadow_samplers 1\n"
// AEP
"#define GL_ANDROID_extension_pack_es31a 1\n"
"#define GL_KHR_blend_equation_advanced 1\n"
"#define GL_OES_sample_variables 1\n"
"#define GL_OES_shader_image_atomic 1\n"
"#define GL_OES_shader_multisample_interpolation 1\n"
"#define GL_OES_texture_storage_multisample_2d_array 1\n"
"#define GL_EXT_geometry_shader 1\n"
"#define GL_EXT_geometry_point_size 1\n"
"#define GL_EXT_gpu_shader5 1\n"
"#define GL_EXT_primitive_bounding_box 1\n"
"#define GL_EXT_shader_io_blocks 1\n"
"#define GL_EXT_tessellation_shader 1\n"
"#define GL_EXT_tessellation_point_size 1\n"
"#define GL_EXT_texture_buffer 1\n"
"#define GL_EXT_texture_cube_map_array 1\n"
// OES matching AEP
"#define GL_OES_geometry_shader 1\n"
"#define GL_OES_geometry_point_size 1\n"
"#define GL_OES_gpu_shader5 1\n"
"#define GL_OES_primitive_bounding_box 1\n"
"#define GL_OES_shader_io_blocks 1\n"
"#define GL_OES_tessellation_shader 1\n"
"#define GL_OES_tessellation_point_size 1\n"
"#define GL_OES_texture_buffer 1\n"
"#define GL_OES_texture_cube_map_array 1\n"
"#define GL_EXT_shader_non_constant_global_initializers 1\n"
;
#ifdef NV_EXTENSIONS
if (profile == EEsProfile && version >= 300) {
preamble += "#define GL_NV_shader_noperspective_interpolation 1\n";
}
#endif
} else {
preamble =
"#define GL_FRAGMENT_PRECISION_HIGH 1\n"
"#define GL_ARB_texture_rectangle 1\n"
"#define GL_ARB_shading_language_420pack 1\n"
"#define GL_ARB_texture_gather 1\n"
"#define GL_ARB_gpu_shader5 1\n"
"#define GL_ARB_separate_shader_objects 1\n"
"#define GL_ARB_compute_shader 1\n"
"#define GL_ARB_tessellation_shader 1\n"
"#define GL_ARB_enhanced_layouts 1\n"
"#define GL_ARB_texture_cube_map_array 1\n"
"#define GL_ARB_shader_texture_lod 1\n"
"#define GL_ARB_explicit_attrib_location 1\n"
"#define GL_ARB_shader_image_load_store 1\n"
"#define GL_ARB_shader_atomic_counters 1\n"
"#define GL_ARB_shader_draw_parameters 1\n"
"#define GL_ARB_shader_group_vote 1\n"
"#define GL_ARB_derivative_control 1\n"
"#define GL_ARB_shader_texture_image_samples 1\n"
"#define GL_ARB_viewport_array 1\n"
"#define GL_ARB_gpu_shader_int64 1\n"
"#define GL_ARB_shader_ballot 1\n"
"#define GL_ARB_sparse_texture2 1\n"
"#define GL_ARB_sparse_texture_clamp 1\n"
"#define GL_ARB_shader_stencil_export 1\n"
// "#define GL_ARB_cull_distance 1\n" // present for 4.5, but need extension control over block members
"#define GL_ARB_post_depth_coverage 1\n"
"#define GL_EXT_shader_non_constant_global_initializers 1\n"
"#define GL_EXT_shader_image_load_formatted 1\n"
"#define GL_EXT_post_depth_coverage 1\n"
"#define GL_EXT_control_flow_attributes 1\n"
"#define GL_EXT_nonuniform_qualifier 1\n"
"#define GL_EXT_shader_16bit_storage 1\n"
"#define GL_EXT_shader_8bit_storage 1\n"
"#define GL_EXT_samplerless_texture_functions 1\n"
"#define GL_EXT_scalar_block_layout 1\n"
"#define GL_EXT_fragment_invocation_density 1\n"
"#define GL_EXT_buffer_reference 1\n"
// GL_KHR_shader_subgroup
"#define GL_KHR_shader_subgroup_basic 1\n"
"#define GL_KHR_shader_subgroup_vote 1\n"
"#define GL_KHR_shader_subgroup_arithmetic 1\n"
"#define GL_KHR_shader_subgroup_ballot 1\n"
"#define GL_KHR_shader_subgroup_shuffle 1\n"
"#define GL_KHR_shader_subgroup_shuffle_relative 1\n"
"#define GL_KHR_shader_subgroup_clustered 1\n"
"#define GL_KHR_shader_subgroup_quad 1\n"
"#define E_GL_EXT_shader_atomic_int64 1\n"
#ifdef AMD_EXTENSIONS
"#define GL_AMD_shader_ballot 1\n"
"#define GL_AMD_shader_trinary_minmax 1\n"
"#define GL_AMD_shader_explicit_vertex_parameter 1\n"
"#define GL_AMD_gcn_shader 1\n"
"#define GL_AMD_gpu_shader_half_float 1\n"
"#define GL_AMD_texture_gather_bias_lod 1\n"
"#define GL_AMD_gpu_shader_int16 1\n"
"#define GL_AMD_shader_image_load_store_lod 1\n"
"#define GL_AMD_shader_fragment_mask 1\n"
"#define GL_AMD_gpu_shader_half_float_fetch 1\n"
#endif
#ifdef NV_EXTENSIONS
"#define GL_NV_sample_mask_override_coverage 1\n"
"#define GL_NV_geometry_shader_passthrough 1\n"
"#define GL_NV_viewport_array2 1\n"
"#define GL_NV_shader_atomic_int64 1\n"
"#define GL_NV_conservative_raster_underestimation 1\n"
"#define GL_NV_shader_subgroup_partitioned 1\n"
"#define GL_NV_shading_rate_image 1\n"
"#define GL_NV_ray_tracing 1\n"
"#define GL_NV_fragment_shader_barycentric 1\n"
"#define GL_NV_compute_shader_derivatives 1\n"
"#define GL_NV_shader_texture_footprint 1\n"
"#define GL_NV_mesh_shader 1\n"
#endif
"#define GL_EXT_shader_explicit_arithmetic_types 1\n"
"#define GL_EXT_shader_explicit_arithmetic_types_int8 1\n"
"#define GL_EXT_shader_explicit_arithmetic_types_int16 1\n"
"#define GL_EXT_shader_explicit_arithmetic_types_int32 1\n"
"#define GL_EXT_shader_explicit_arithmetic_types_int64 1\n"
"#define GL_EXT_shader_explicit_arithmetic_types_float16 1\n"
"#define GL_EXT_shader_explicit_arithmetic_types_float32 1\n"
"#define GL_EXT_shader_explicit_arithmetic_types_float64 1\n"
;
if (version >= 150) {
// define GL_core_profile and GL_compatibility_profile
preamble += "#define GL_core_profile 1\n";
if (profile == ECompatibilityProfile)
preamble += "#define GL_compatibility_profile 1\n";
}
}
if ((profile != EEsProfile && version >= 140) ||
(profile == EEsProfile && version >= 310)) {
preamble +=
"#define GL_EXT_device_group 1\n"
"#define GL_EXT_multiview 1\n"
;
}
if (version >= 300 /* both ES and non-ES */) {
preamble +=
"#define GL_OVR_multiview 1\n"
"#define GL_OVR_multiview2 1\n"
;
}
// #line and #include
preamble +=
"#define GL_GOOGLE_cpp_style_line_directive 1\n"
"#define GL_GOOGLE_include_directive 1\n"
;
// #define VULKAN XXXX
const int numberBufSize = 12;
char numberBuf[numberBufSize];
if (spvVersion.vulkanGlsl > 0) {
preamble += "#define VULKAN ";
snprintf(numberBuf, numberBufSize, "%d", spvVersion.vulkanGlsl);
preamble += numberBuf;
preamble += "\n";
}
// #define GL_SPIRV XXXX
if (spvVersion.openGl > 0) {
preamble += "#define GL_SPIRV ";
snprintf(numberBuf, numberBufSize, "%d", spvVersion.openGl);
preamble += numberBuf;
preamble += "\n";
}
}
//
// When to use requireProfile():
//
// Use if only some profiles support a feature. However, if within a profile the feature
// is version or extension specific, follow this call with calls to profileRequires().
//
// Operation: If the current profile is not one of the profileMask,
// give an error message.
//
void TParseVersions::requireProfile(const TSourceLoc& loc, int profileMask, const char* featureDesc)
{
if (! (profile & profileMask))
error(loc, "not supported with this profile:", featureDesc, ProfileName(profile));
}
//
// Map from stage enum to externally readable text name.
//
const char* StageName(EShLanguage stage)
{
switch(stage) {
case EShLangVertex: return "vertex";
case EShLangTessControl: return "tessellation control";
case EShLangTessEvaluation: return "tessellation evaluation";
case EShLangGeometry: return "geometry";
case EShLangFragment: return "fragment";
case EShLangCompute: return "compute";
#ifdef NV_EXTENSIONS
case EShLangRayGenNV: return "ray-generation";
case EShLangIntersectNV: return "intersection";
case EShLangAnyHitNV: return "any-hit";
case EShLangClosestHitNV: return "closest-hit";
case EShLangMissNV: return "miss";
case EShLangCallableNV: return "callable";
case EShLangMeshNV: return "mesh";
case EShLangTaskNV: return "task";
#endif
default: return "unknown stage";
}
}
//
// When to use profileRequires():
//
// If a set of profiles have the same requirements for what version or extensions
// are needed to support a feature.
//
// It must be called for each profile that needs protection. Use requireProfile() first
// to reduce that set of profiles.
//
// Operation: Will issue warnings/errors based on the current profile, version, and extension
// behaviors. It only checks extensions when the current profile is one of the profileMask.
//
// A minVersion of 0 means no version of the profileMask support this in core,
// the extension must be present.
//
// entry point that takes multiple extensions
void TParseVersions::profileRequires(const TSourceLoc& loc, int profileMask, int minVersion, int numExtensions, const char* const extensions[], const char* featureDesc)
{
if (profile & profileMask) {
bool okay = false;
if (minVersion > 0 && version >= minVersion)
okay = true;
for (int i = 0; i < numExtensions; ++i) {
switch (getExtensionBehavior(extensions[i])) {
case EBhWarn:
infoSink.info.message(EPrefixWarning, ("extension " + TString(extensions[i]) + " is being used for " + featureDesc).c_str(), loc);
// fall through
case EBhRequire:
case EBhEnable:
okay = true;
break;
default: break; // some compilers want this
}
}
if (! okay)
error(loc, "not supported for this version or the enabled extensions", featureDesc, "");
}
}
// entry point for the above that takes a single extension
void TParseVersions::profileRequires(const TSourceLoc& loc, int profileMask, int minVersion, const char* extension, const char* featureDesc)
{
profileRequires(loc, profileMask, minVersion, extension ? 1 : 0, &extension, featureDesc);
}
//
// When to use requireStage()
//
// If only some stages support a feature.
//
// Operation: If the current stage is not present, give an error message.
//
void TParseVersions::requireStage(const TSourceLoc& loc, EShLanguageMask languageMask, const char* featureDesc)
{
if (((1 << language) & languageMask) == 0)
error(loc, "not supported in this stage:", featureDesc, StageName(language));
}
// If only one stage supports a feature, this can be called. But, all supporting stages
// must be specified with one call.
void TParseVersions::requireStage(const TSourceLoc& loc, EShLanguage stage, const char* featureDesc)
{
requireStage(loc, static_cast<EShLanguageMask>(1 << stage), featureDesc);
}
//
// Within a set of profiles, see if a feature is deprecated and give an error or warning based on whether
// a future compatibility context is being use.
//
void TParseVersions::checkDeprecated(const TSourceLoc& loc, int profileMask, int depVersion, const char* featureDesc)
{
if (profile & profileMask) {
if (version >= depVersion) {
if (forwardCompatible)
error(loc, "deprecated, may be removed in future release", featureDesc, "");
else if (! suppressWarnings())
infoSink.info.message(EPrefixWarning, (TString(featureDesc) + " deprecated in version " +
String(depVersion) + "; may be removed in future release").c_str(), loc);
}
}
}
//
// Within a set of profiles, see if a feature has now been removed and if so, give an error.
// The version argument is the first version no longer having the feature.
//
void TParseVersions::requireNotRemoved(const TSourceLoc& loc, int profileMask, int removedVersion, const char* featureDesc)
{
if (profile & profileMask) {
if (version >= removedVersion) {
const int maxSize = 60;
char buf[maxSize];
snprintf(buf, maxSize, "%s profile; removed in version %d", ProfileName(profile), removedVersion);
error(loc, "no longer supported in", featureDesc, buf);
}
}
}
void TParseVersions::unimplemented(const TSourceLoc& loc, const char* featureDesc)
{
error(loc, "feature not yet implemented", featureDesc, "");
}
// Returns true if at least one of the extensions in the extensions parameter is requested. Otherwise, returns false.
// Warns appropriately if the requested behavior of an extension is "warn".
bool TParseVersions::checkExtensionsRequested(const TSourceLoc& loc, int numExtensions, const char* const extensions[], const char* featureDesc)
{
// First, see if any of the extensions are enabled
for (int i = 0; i < numExtensions; ++i) {
TExtensionBehavior behavior = getExtensionBehavior(extensions[i]);
if (behavior == EBhEnable || behavior == EBhRequire)
return true;
}
// See if any extensions want to give a warning on use; give warnings for all such extensions
bool warned = false;
for (int i = 0; i < numExtensions; ++i) {
TExtensionBehavior behavior = getExtensionBehavior(extensions[i]);
if (behavior == EBhDisable && relaxedErrors()) {
infoSink.info.message(EPrefixWarning, "The following extension must be enabled to use this feature:", loc);
behavior = EBhWarn;
}
if (behavior == EBhWarn) {
infoSink.info.message(EPrefixWarning, ("extension " + TString(extensions[i]) + " is being used for " + featureDesc).c_str(), loc);
warned = true;
}
}
if (warned)
return true;
return false;
}
//
// Use when there are no profile/version to check, it's just an error if one of the
// extensions is not present.
//
void TParseVersions::requireExtensions(const TSourceLoc& loc, int numExtensions, const char* const extensions[], const char* featureDesc)
{
if (checkExtensionsRequested(loc, numExtensions, extensions, featureDesc))
return;
// If we get this far, give errors explaining what extensions are needed
if (numExtensions == 1)
error(loc, "required extension not requested:", featureDesc, extensions[0]);
else {
error(loc, "required extension not requested:", featureDesc, "Possible extensions include:");
for (int i = 0; i < numExtensions; ++i)
infoSink.info.message(EPrefixNone, extensions[i]);
}
}
//
// Use by preprocessor when there are no profile/version to check, it's just an error if one of the
// extensions is not present.
//
void TParseVersions::ppRequireExtensions(const TSourceLoc& loc, int numExtensions, const char* const extensions[], const char* featureDesc)
{
if (checkExtensionsRequested(loc, numExtensions, extensions, featureDesc))
return;
// If we get this far, give errors explaining what extensions are needed
if (numExtensions == 1)
ppError(loc, "required extension not requested:", featureDesc, extensions[0]);
else {
ppError(loc, "required extension not requested:", featureDesc, "Possible extensions include:");
for (int i = 0; i < numExtensions; ++i)
infoSink.info.message(EPrefixNone, extensions[i]);
}
}
TExtensionBehavior TParseVersions::getExtensionBehavior(const char* extension)
{
auto iter = extensionBehavior.find(TString(extension));
if (iter == extensionBehavior.end())
return EBhMissing;
else
return iter->second;
}
// Returns true if the given extension is set to enable, require, or warn.
bool TParseVersions::extensionTurnedOn(const char* const extension)
{
switch (getExtensionBehavior(extension)) {
case EBhEnable:
case EBhRequire:
case EBhWarn:
return true;
default:
break;
}
return false;
}
// See if any of the extensions are set to enable, require, or warn.
bool TParseVersions::extensionsTurnedOn(int numExtensions, const char* const extensions[])
{
for (int i = 0; i < numExtensions; ++i) {
if (extensionTurnedOn(extensions[i]))
return true;
}
return false;
}
//
// Change the current state of an extension's behavior.
//
void TParseVersions::updateExtensionBehavior(int line, const char* extension, const char* behaviorString)
{
// Translate from text string of extension's behavior to an enum.
TExtensionBehavior behavior = EBhDisable;
if (! strcmp("require", behaviorString))
behavior = EBhRequire;
else if (! strcmp("enable", behaviorString))
behavior = EBhEnable;
else if (! strcmp("disable", behaviorString))
behavior = EBhDisable;
else if (! strcmp("warn", behaviorString))
behavior = EBhWarn;
else {
error(getCurrentLoc(), "behavior not supported:", "#extension", behaviorString);
return;
}
// check if extension is used with correct shader stage
checkExtensionStage(getCurrentLoc(), extension);
// update the requested extension
updateExtensionBehavior(extension, behavior);
// see if need to propagate to implicitly modified things
if (strcmp(extension, "GL_ANDROID_extension_pack_es31a") == 0) {
// to everything in AEP
updateExtensionBehavior(line, "GL_KHR_blend_equation_advanced", behaviorString);
updateExtensionBehavior(line, "GL_OES_sample_variables", behaviorString);
updateExtensionBehavior(line, "GL_OES_shader_image_atomic", behaviorString);
updateExtensionBehavior(line, "GL_OES_shader_multisample_interpolation", behaviorString);
updateExtensionBehavior(line, "GL_OES_texture_storage_multisample_2d_array", behaviorString);
updateExtensionBehavior(line, "GL_EXT_geometry_shader", behaviorString);
updateExtensionBehavior(line, "GL_EXT_gpu_shader5", behaviorString);
updateExtensionBehavior(line, "GL_EXT_primitive_bounding_box", behaviorString);
updateExtensionBehavior(line, "GL_EXT_shader_io_blocks", behaviorString);
updateExtensionBehavior(line, "GL_EXT_tessellation_shader", behaviorString);
updateExtensionBehavior(line, "GL_EXT_texture_buffer", behaviorString);
updateExtensionBehavior(line, "GL_EXT_texture_cube_map_array", behaviorString);
}
// geometry to io_blocks
else if (strcmp(extension, "GL_EXT_geometry_shader") == 0)
updateExtensionBehavior(line, "GL_EXT_shader_io_blocks", behaviorString);
else if (strcmp(extension, "GL_OES_geometry_shader") == 0)
updateExtensionBehavior(line, "GL_OES_shader_io_blocks", behaviorString);
// tessellation to io_blocks
else if (strcmp(extension, "GL_EXT_tessellation_shader") == 0)
updateExtensionBehavior(line, "GL_EXT_shader_io_blocks", behaviorString);
else if (strcmp(extension, "GL_OES_tessellation_shader") == 0)
updateExtensionBehavior(line, "GL_OES_shader_io_blocks", behaviorString);
else if (strcmp(extension, "GL_GOOGLE_include_directive") == 0)
updateExtensionBehavior(line, "GL_GOOGLE_cpp_style_line_directive", behaviorString);
// subgroup_* to subgroup_basic
else if (strcmp(extension, "GL_KHR_shader_subgroup_vote") == 0)
updateExtensionBehavior(line, "GL_KHR_shader_subgroup_basic", behaviorString);
else if (strcmp(extension, "GL_KHR_shader_subgroup_arithmetic") == 0)
updateExtensionBehavior(line, "GL_KHR_shader_subgroup_basic", behaviorString);
else if (strcmp(extension, "GL_KHR_shader_subgroup_ballot") == 0)
updateExtensionBehavior(line, "GL_KHR_shader_subgroup_basic", behaviorString);
else if (strcmp(extension, "GL_KHR_shader_subgroup_shuffle") == 0)
updateExtensionBehavior(line, "GL_KHR_shader_subgroup_basic", behaviorString);
else if (strcmp(extension, "GL_KHR_shader_subgroup_shuffle_relative") == 0)
updateExtensionBehavior(line, "GL_KHR_shader_subgroup_basic", behaviorString);
else if (strcmp(extension, "GL_KHR_shader_subgroup_clustered") == 0)
updateExtensionBehavior(line, "GL_KHR_shader_subgroup_basic", behaviorString);
else if (strcmp(extension, "GL_KHR_shader_subgroup_quad") == 0)
updateExtensionBehavior(line, "GL_KHR_shader_subgroup_basic", behaviorString);
#ifdef NV_EXTENSIONS
else if (strcmp(extension, "GL_NV_shader_subgroup_partitioned") == 0)
updateExtensionBehavior(line, "GL_KHR_shader_subgroup_basic", behaviorString);
#endif
}
void TParseVersions::updateExtensionBehavior(const char* extension, TExtensionBehavior behavior)
{
// Update the current behavior
if (strcmp(extension, "all") == 0) {
// special case for the 'all' extension; apply it to every extension present
if (behavior == EBhRequire || behavior == EBhEnable) {
error(getCurrentLoc(), "extension 'all' cannot have 'require' or 'enable' behavior", "#extension", "");
return;
} else {
for (auto iter = extensionBehavior.begin(); iter != extensionBehavior.end(); ++iter)
iter->second = behavior;
}
} else {
// Do the update for this single extension
auto iter = extensionBehavior.find(TString(extension));
if (iter == extensionBehavior.end()) {
switch (behavior) {
case EBhRequire:
error(getCurrentLoc(), "extension not supported:", "#extension", extension);
break;
case EBhEnable:
case EBhWarn:
case EBhDisable:
warn(getCurrentLoc(), "extension not supported:", "#extension", extension);
break;
default:
assert(0 && "unexpected behavior");
}
return;
} else {
if (iter->second == EBhDisablePartial)
warn(getCurrentLoc(), "extension is only partially supported:", "#extension", extension);
if (behavior == EBhEnable || behavior == EBhRequire)
intermediate.addRequestedExtension(extension);
iter->second = behavior;
}
}
}
// Check if extension is used with correct shader stage.
void TParseVersions::checkExtensionStage(const TSourceLoc& loc, const char * const extension)
{
#ifdef NV_EXTENSIONS
// GL_NV_mesh_shader extension is only allowed in task/mesh shaders
if (strcmp(extension, "GL_NV_mesh_shader") == 0) {
requireStage(loc, (EShLanguageMask)(EShLangTaskNVMask | EShLangMeshNVMask | EShLangFragmentMask),
"#extension GL_NV_mesh_shader");
profileRequires(loc, ECoreProfile, 450, 0, "#extension GL_NV_mesh_shader");
profileRequires(loc, EEsProfile, 320, 0, "#extension GL_NV_mesh_shader");
}
#endif
}
// Call for any operation needing full GLSL integer data-type support.
void TParseVersions::fullIntegerCheck(const TSourceLoc& loc, const char* op)
{
profileRequires(loc, ENoProfile, 130, nullptr, op);
profileRequires(loc, EEsProfile, 300, nullptr, op);
}
// Call for any operation needing GLSL double data-type support.
void TParseVersions::doubleCheck(const TSourceLoc& loc, const char* op)
{
requireProfile(loc, ECoreProfile | ECompatibilityProfile, op);
profileRequires(loc, ECoreProfile | ECompatibilityProfile, 400, nullptr, op);
}
// Call for any operation needing GLSL float16 data-type support.
void TParseVersions::float16Check(const TSourceLoc& loc, const char* op, bool builtIn)
{
if (!builtIn) {
const char* const extensions[] = {
#if AMD_EXTENSIONS
E_GL_AMD_gpu_shader_half_float,
#endif
E_GL_EXT_shader_explicit_arithmetic_types,
E_GL_EXT_shader_explicit_arithmetic_types_float16};
requireExtensions(loc, sizeof(extensions)/sizeof(extensions[0]), extensions, op);
}
}
bool TParseVersions::float16Arithmetic()
{
const char* const extensions[] = {
#if AMD_EXTENSIONS
E_GL_AMD_gpu_shader_half_float,
#endif
E_GL_EXT_shader_explicit_arithmetic_types,
E_GL_EXT_shader_explicit_arithmetic_types_float16};
return extensionsTurnedOn(sizeof(extensions)/sizeof(extensions[0]), extensions);
}
bool TParseVersions::int16Arithmetic()
{
const char* const extensions[] = {
#if AMD_EXTENSIONS
E_GL_AMD_gpu_shader_int16,
#endif
E_GL_EXT_shader_explicit_arithmetic_types,
E_GL_EXT_shader_explicit_arithmetic_types_int16};
return extensionsTurnedOn(sizeof(extensions)/sizeof(extensions[0]), extensions);
}
bool TParseVersions::int8Arithmetic()
{
const char* const extensions[] = {
E_GL_EXT_shader_explicit_arithmetic_types,
E_GL_EXT_shader_explicit_arithmetic_types_int8};
return extensionsTurnedOn(sizeof(extensions)/sizeof(extensions[0]), extensions);
}
void TParseVersions::requireFloat16Arithmetic(const TSourceLoc& loc, const char* op, const char* featureDesc)
{
TString combined;
combined = op;
combined += ": ";
combined += featureDesc;
const char* const extensions[] = {
#if AMD_EXTENSIONS
E_GL_AMD_gpu_shader_half_float,
#endif
E_GL_EXT_shader_explicit_arithmetic_types,
E_GL_EXT_shader_explicit_arithmetic_types_float16};
requireExtensions(loc, sizeof(extensions)/sizeof(extensions[0]), extensions, combined.c_str());
}
void TParseVersions::requireInt16Arithmetic(const TSourceLoc& loc, const char* op, const char* featureDesc)
{
TString combined;
combined = op;
combined += ": ";
combined += featureDesc;
const char* const extensions[] = {
#if AMD_EXTENSIONS
E_GL_AMD_gpu_shader_int16,
#endif
E_GL_EXT_shader_explicit_arithmetic_types,
E_GL_EXT_shader_explicit_arithmetic_types_int16};
requireExtensions(loc, sizeof(extensions)/sizeof(extensions[0]), extensions, combined.c_str());
}
void TParseVersions::requireInt8Arithmetic(const TSourceLoc& loc, const char* op, const char* featureDesc)
{
TString combined;
combined = op;
combined += ": ";
combined += featureDesc;
const char* const extensions[] = {
E_GL_EXT_shader_explicit_arithmetic_types,
E_GL_EXT_shader_explicit_arithmetic_types_int8};
requireExtensions(loc, sizeof(extensions)/sizeof(extensions[0]), extensions, combined.c_str());
}
void TParseVersions::float16ScalarVectorCheck(const TSourceLoc& loc, const char* op, bool builtIn)
{
if (!builtIn) {
const char* const extensions[] = {
#if AMD_EXTENSIONS
E_GL_AMD_gpu_shader_half_float,
#endif
E_GL_EXT_shader_16bit_storage,
E_GL_EXT_shader_explicit_arithmetic_types,
E_GL_EXT_shader_explicit_arithmetic_types_float16};
requireExtensions(loc, sizeof(extensions)/sizeof(extensions[0]), extensions, op);
}
}
// Call for any operation needing GLSL float32 data-type support.
void TParseVersions::explicitFloat32Check(const TSourceLoc& loc, const char* op, bool builtIn)
{
if (!builtIn) {
const char* const extensions[2] = {E_GL_EXT_shader_explicit_arithmetic_types,
E_GL_EXT_shader_explicit_arithmetic_types_float32};
requireExtensions(loc, 2, extensions, op);
}
}
// Call for any operation needing GLSL float64 data-type support.
void TParseVersions::explicitFloat64Check(const TSourceLoc& loc, const char* op, bool builtIn)
{
if (!builtIn) {
const char* const extensions[2] = {E_GL_EXT_shader_explicit_arithmetic_types,
E_GL_EXT_shader_explicit_arithmetic_types_float64};
requireExtensions(loc, 2, extensions, op);
requireProfile(loc, ECoreProfile | ECompatibilityProfile, op);
profileRequires(loc, ECoreProfile | ECompatibilityProfile, 400, nullptr, op);
}
}
// Call for any operation needing GLSL explicit int8 data-type support.
void TParseVersions::explicitInt8Check(const TSourceLoc& loc, const char* op, bool builtIn)
{
if (! builtIn) {
const char* const extensions[2] = {E_GL_EXT_shader_explicit_arithmetic_types,
E_GL_EXT_shader_explicit_arithmetic_types_int8};
requireExtensions(loc, 2, extensions, op);
}
}
#ifdef AMD_EXTENSIONS
// Call for any operation needing GLSL float16 opaque-type support
void TParseVersions::float16OpaqueCheck(const TSourceLoc& loc, const char* op, bool builtIn)
{
if (! builtIn) {
requireExtensions(loc, 1, &E_GL_AMD_gpu_shader_half_float_fetch, op);
requireProfile(loc, ECoreProfile | ECompatibilityProfile, op);
profileRequires(loc, ECoreProfile | ECompatibilityProfile, 400, nullptr, op);
}
}
#endif
// Call for any operation needing GLSL explicit int16 data-type support.
void TParseVersions::explicitInt16Check(const TSourceLoc& loc, const char* op, bool builtIn)
{
if (! builtIn) {
const char* const extensions[] = {
#if AMD_EXTENSIONS
E_GL_AMD_gpu_shader_int16,
#endif
E_GL_EXT_shader_explicit_arithmetic_types,
E_GL_EXT_shader_explicit_arithmetic_types_int16};
requireExtensions(loc, sizeof(extensions)/sizeof(extensions[0]), extensions, op);
}
}
void TParseVersions::int16ScalarVectorCheck(const TSourceLoc& loc, const char* op, bool builtIn)
{
if (! builtIn) {
const char* const extensions[] = {
#if AMD_EXTENSIONS
E_GL_AMD_gpu_shader_int16,
#endif
E_GL_EXT_shader_16bit_storage,
E_GL_EXT_shader_explicit_arithmetic_types,
E_GL_EXT_shader_explicit_arithmetic_types_int16};
requireExtensions(loc, sizeof(extensions)/sizeof(extensions[0]), extensions, op);
}
}
void TParseVersions::int8ScalarVectorCheck(const TSourceLoc& loc, const char* op, bool builtIn)
{
if (! builtIn) {
const char* const extensions[] = {
E_GL_EXT_shader_8bit_storage,
E_GL_EXT_shader_explicit_arithmetic_types,
E_GL_EXT_shader_explicit_arithmetic_types_int8};
requireExtensions(loc, sizeof(extensions)/sizeof(extensions[0]), extensions, op);
}
}
// Call for any operation needing GLSL explicit int32 data-type support.
void TParseVersions::explicitInt32Check(const TSourceLoc& loc, const char* op, bool builtIn)
{
if (! builtIn) {
const char* const extensions[2] = {E_GL_EXT_shader_explicit_arithmetic_types,
E_GL_EXT_shader_explicit_arithmetic_types_int32};
requireExtensions(loc, 2, extensions, op);
}
}
// Call for any operation needing GLSL 64-bit integer data-type support.
void TParseVersions::int64Check(const TSourceLoc& loc, const char* op, bool builtIn)
{
if (! builtIn) {
const char* const extensions[3] = {E_GL_ARB_gpu_shader_int64,
E_GL_EXT_shader_explicit_arithmetic_types,
E_GL_EXT_shader_explicit_arithmetic_types_int64};
requireExtensions(loc, 3, extensions, op);
requireProfile(loc, ECoreProfile | ECompatibilityProfile, op);
profileRequires(loc, ECoreProfile | ECompatibilityProfile, 400, nullptr, op);
}
}
// Call for any operation removed because SPIR-V is in use.
void TParseVersions::spvRemoved(const TSourceLoc& loc, const char* op)
{
if (spvVersion.spv != 0)
error(loc, "not allowed when generating SPIR-V", op, "");
}
// Call for any operation removed because Vulkan SPIR-V is being generated.
void TParseVersions::vulkanRemoved(const TSourceLoc& loc, const char* op)
{
if (spvVersion.vulkan > 0)
error(loc, "not allowed when using GLSL for Vulkan", op, "");
}
// Call for any operation that requires Vulkan.
void TParseVersions::requireVulkan(const TSourceLoc& loc, const char* op)
{
if (spvVersion.vulkan == 0)
error(loc, "only allowed when using GLSL for Vulkan", op, "");
}
// Call for any operation that requires SPIR-V.
void TParseVersions::requireSpv(const TSourceLoc& loc, const char* op)
{
if (spvVersion.spv == 0)
error(loc, "only allowed when generating SPIR-V", op, "");
}
} // end namespace glslang
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