mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-12-27 10:20:14 +00:00
bed84792f9
Adapts all transformation classes so that their protobuf message is passed by value and then moved into the message_ field.
106 lines
3.9 KiB
C++
106 lines
3.9 KiB
C++
// Copyright (c) 2019 Google LLC
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include "source/fuzz/transformation_set_function_control.h"
|
|
|
|
namespace spvtools {
|
|
namespace fuzz {
|
|
|
|
TransformationSetFunctionControl::TransformationSetFunctionControl(
|
|
protobufs::TransformationSetFunctionControl message)
|
|
: message_(std::move(message)) {}
|
|
|
|
TransformationSetFunctionControl::TransformationSetFunctionControl(
|
|
uint32_t function_id, uint32_t function_control) {
|
|
message_.set_function_id(function_id);
|
|
message_.set_function_control(function_control);
|
|
}
|
|
|
|
bool TransformationSetFunctionControl::IsApplicable(
|
|
opt::IRContext* ir_context, const TransformationContext& /*unused*/) const {
|
|
opt::Instruction* function_def_instruction =
|
|
FindFunctionDefInstruction(ir_context);
|
|
if (!function_def_instruction) {
|
|
// The given function id does not correspond to any function.
|
|
return false;
|
|
}
|
|
uint32_t existing_function_control_mask =
|
|
function_def_instruction->GetSingleWordInOperand(0);
|
|
|
|
// Check (via an assertion) that function control mask doesn't have any bad
|
|
// bits set.
|
|
uint32_t acceptable_function_control_bits =
|
|
SpvFunctionControlInlineMask | SpvFunctionControlDontInlineMask |
|
|
SpvFunctionControlPureMask | SpvFunctionControlConstMask;
|
|
// The following is to keep release-mode compilers happy as this variable is
|
|
// only used in an assertion.
|
|
(void)(acceptable_function_control_bits);
|
|
assert(!(message_.function_control() & ~acceptable_function_control_bits) &&
|
|
"Nonsensical loop control bits were found.");
|
|
|
|
// Check (via an assertion) that function control mask does not have both
|
|
// Inline and DontInline bits set.
|
|
assert(!((message_.function_control() & SpvFunctionControlInlineMask) &&
|
|
(message_.function_control() & SpvFunctionControlDontInlineMask)) &&
|
|
"It is not OK to set both the 'Inline' and 'DontInline' bits of a "
|
|
"function control mask");
|
|
|
|
// Check that Const and Pure are only present if they were present on the
|
|
// original function
|
|
for (auto mask_bit :
|
|
{SpvFunctionControlPureMask, SpvFunctionControlConstMask}) {
|
|
if ((message_.function_control() & mask_bit) &&
|
|
!(existing_function_control_mask & mask_bit)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void TransformationSetFunctionControl::Apply(
|
|
opt::IRContext* ir_context, TransformationContext* /*unused*/) const {
|
|
opt::Instruction* function_def_instruction =
|
|
FindFunctionDefInstruction(ir_context);
|
|
function_def_instruction->SetInOperand(0, {message_.function_control()});
|
|
}
|
|
|
|
protobufs::Transformation TransformationSetFunctionControl::ToMessage() const {
|
|
protobufs::Transformation result;
|
|
*result.mutable_set_function_control() = message_;
|
|
return result;
|
|
}
|
|
|
|
opt::Instruction* TransformationSetFunctionControl ::FindFunctionDefInstruction(
|
|
opt::IRContext* ir_context) const {
|
|
// Look through all functions for a function whose defining instruction's
|
|
// result id matches |message_.function_id|, returning the defining
|
|
// instruction if found.
|
|
for (auto& function : *ir_context->module()) {
|
|
if (function.DefInst().result_id() == message_.function_id()) {
|
|
return &function.DefInst();
|
|
}
|
|
}
|
|
// A nullptr result indicates that no match was found.
|
|
return nullptr;
|
|
}
|
|
|
|
std::unordered_set<uint32_t> TransformationSetFunctionControl::GetFreshIds()
|
|
const {
|
|
return std::unordered_set<uint32_t>();
|
|
}
|
|
|
|
} // namespace fuzz
|
|
} // namespace spvtools
|