mirror of
https://github.com/KhronosGroup/SPIRV-Tools
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063dbea0f1
Function static non-POD data causes problems with DLL lifetime. This pull request turns all static info tables into strict POD tables. Specifically, the capabilities/extensions field of opcode/operand/extended-instruction table are turned into two fields, one for the count and the other a pointer to an array of capabilities/extensions. CapabilitySet/EnumSet are not used in the static table anymore, but they are still used for checking inclusion by constructing on the fly, which should be cheap for the majority cases. Also moves all these tables into the global namespace to avoid C++11 function static thread-safe initialization overhead.
131 lines
4.1 KiB
C++
131 lines
4.1 KiB
C++
// Copyright (c) 2017 Google Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Validates OpCapability instruction.
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#include "validate.h"
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#include <cassert>
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#include <unordered_set>
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#include "diagnostic.h"
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#include "opcode.h"
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#include "val/instruction.h"
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#include "val/validation_state.h"
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namespace libspirv {
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namespace {
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bool IsSupportGuaranteedVulkan_1_0(uint32_t capability) {
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switch (capability) {
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case SpvCapabilityMatrix:
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case SpvCapabilityShader:
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case SpvCapabilityInputAttachment:
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case SpvCapabilitySampled1D:
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case SpvCapabilityImage1D:
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case SpvCapabilitySampledBuffer:
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case SpvCapabilityImageBuffer:
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case SpvCapabilityImageQuery:
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case SpvCapabilityDerivativeControl:
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return true;
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}
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return false;
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}
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bool IsSupportOptionalVulkan_1_0(uint32_t capability) {
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switch (capability) {
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case SpvCapabilityGeometry:
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case SpvCapabilityTessellation:
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case SpvCapabilityFloat64:
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case SpvCapabilityInt64:
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case SpvCapabilityInt16:
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case SpvCapabilityTessellationPointSize:
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case SpvCapabilityGeometryPointSize:
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case SpvCapabilityImageGatherExtended:
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case SpvCapabilityStorageImageMultisample:
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case SpvCapabilityUniformBufferArrayDynamicIndexing:
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case SpvCapabilitySampledImageArrayDynamicIndexing:
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case SpvCapabilityStorageBufferArrayDynamicIndexing:
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case SpvCapabilityStorageImageArrayDynamicIndexing:
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case SpvCapabilityClipDistance:
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case SpvCapabilityCullDistance:
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case SpvCapabilityImageCubeArray:
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case SpvCapabilitySampleRateShading:
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case SpvCapabilitySparseResidency:
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case SpvCapabilityMinLod:
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case SpvCapabilitySampledCubeArray:
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case SpvCapabilityImageMSArray:
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case SpvCapabilityStorageImageExtendedFormats:
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case SpvCapabilityInterpolationFunction:
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case SpvCapabilityStorageImageReadWithoutFormat:
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case SpvCapabilityStorageImageWriteWithoutFormat:
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case SpvCapabilityMultiViewport:
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return true;
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}
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return false;
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}
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// Checks if |capability| was enabled by extension.
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bool IsEnabledByExtension(ValidationState_t& _, uint32_t capability) {
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spv_operand_desc operand_desc = nullptr;
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_.grammar().lookupOperand(SPV_OPERAND_TYPE_CAPABILITY, capability,
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&operand_desc);
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// operand_desc is expected to be not null, otherwise validator would have
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// failed at an earlier stage. This 'assert' is 'just in case'.
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assert(operand_desc);
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ExtensionSet operand_exts(operand_desc->numExtensions,
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operand_desc->extensions);
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if (operand_exts.IsEmpty()) return false;
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return _.HasAnyOfExtensions(operand_exts);
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}
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} // namespace
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// Validates that capability declarations use operands allowed in the current
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// context.
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spv_result_t CapabilityPass(ValidationState_t& _,
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const spv_parsed_instruction_t* inst) {
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const SpvOp opcode = static_cast<SpvOp>(inst->opcode);
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if (opcode != SpvOpCapability) return SPV_SUCCESS;
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assert(inst->num_operands == 1);
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const spv_parsed_operand_t& operand = inst->operands[0];
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assert(operand.num_words == 1);
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assert(operand.offset < inst->num_words);
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const uint32_t capability = inst->words[operand.offset];
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const auto env = _.context()->target_env;
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if (env == SPV_ENV_VULKAN_1_0) {
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if (!IsSupportGuaranteedVulkan_1_0(capability) &&
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!IsSupportOptionalVulkan_1_0(capability) &&
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!IsEnabledByExtension(_, capability)) {
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return _.diag(SPV_ERROR_INVALID_CAPABILITY)
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<< "Capability value " << capability
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<< " is not allowed by Vulkan 1.0 specification"
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<< " (or requires extension)";
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}
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}
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return SPV_SUCCESS;
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}
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} // namespace libspirv
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