mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-12-18 06:01:03 +00:00
dd37d73c5e
* Allow OpExtInst for DebugInfo between secion 9 and 10 Fixes #3086 * Handle spirv-opt errors on DebugInfo Ext * Add IR Loader test * Fix ir loader bug * Handle DebugFunction/DebugTypeMember forward reference * Add test cases (forward reference to function) * Support old DebugInfo extension * Validate local debug info out of function
110 lines
3.9 KiB
C++
110 lines
3.9 KiB
C++
// Copyright (c) 2016 Google Inc.
|
|
//
|
|
// 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/opt/strip_debug_info_pass.h"
|
|
#include "source/opt/ir_context.h"
|
|
|
|
namespace spvtools {
|
|
namespace opt {
|
|
|
|
Pass::Status StripDebugInfoPass::Process() {
|
|
bool uses_non_semantic_info = false;
|
|
for (auto& inst : context()->module()->extensions()) {
|
|
const char* ext_name =
|
|
reinterpret_cast<const char*>(&inst.GetInOperand(0).words[0]);
|
|
if (0 == std::strcmp(ext_name, "SPV_KHR_non_semantic_info")) {
|
|
uses_non_semantic_info = true;
|
|
}
|
|
}
|
|
|
|
std::vector<Instruction*> to_kill;
|
|
|
|
// if we use non-semantic info, it may reference OpString. Do a more
|
|
// expensive pass checking the uses of the OpString to see if any are
|
|
// OpExtInst on a non-semantic instruction set. If we're not using the
|
|
// extension then we can do a simpler pass and kill all debug1 instructions
|
|
if (uses_non_semantic_info) {
|
|
for (auto& inst : context()->module()->debugs1()) {
|
|
switch (inst.opcode()) {
|
|
case SpvOpString: {
|
|
analysis::DefUseManager* def_use = context()->get_def_use_mgr();
|
|
|
|
// see if this string is used anywhere by a non-semantic instruction
|
|
bool no_nonsemantic_use =
|
|
def_use->WhileEachUser(&inst, [def_use](Instruction* use) {
|
|
if (use->opcode() == SpvOpExtInst) {
|
|
auto ext_inst_set =
|
|
def_use->GetDef(use->GetSingleWordInOperand(0u));
|
|
const char* extension_name = reinterpret_cast<const char*>(
|
|
&ext_inst_set->GetInOperand(0).words[0]);
|
|
if (0 == std::strncmp(extension_name, "NonSemantic.", 12)) {
|
|
// found a non-semantic use, return false as we cannot
|
|
// remove this OpString
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// other instructions can't be a non-semantic use
|
|
return true;
|
|
});
|
|
|
|
if (no_nonsemantic_use) to_kill.push_back(&inst);
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
to_kill.push_back(&inst);
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
for (auto& dbg : context()->debugs1()) to_kill.push_back(&dbg);
|
|
}
|
|
|
|
for (auto& dbg : context()->debugs2()) to_kill.push_back(&dbg);
|
|
for (auto& dbg : context()->debugs3()) to_kill.push_back(&dbg);
|
|
for (auto& dbg : context()->ext_inst_debuginfo()) to_kill.push_back(&dbg);
|
|
|
|
// OpName must come first, since they may refer to other debug instructions.
|
|
// If they are after the instructions that refer to, then they will be killed
|
|
// when that instruction is killed, which will lead to a double kill.
|
|
std::sort(to_kill.begin(), to_kill.end(),
|
|
[](Instruction* lhs, Instruction* rhs) -> bool {
|
|
if (lhs->opcode() == SpvOpName && rhs->opcode() != SpvOpName)
|
|
return true;
|
|
return false;
|
|
});
|
|
|
|
bool modified = !to_kill.empty();
|
|
|
|
for (auto* inst : to_kill) context()->KillInst(inst);
|
|
|
|
// clear OpLine information
|
|
context()->module()->ForEachInst([&modified](Instruction* inst) {
|
|
modified |= !inst->dbg_line_insts().empty();
|
|
inst->dbg_line_insts().clear();
|
|
});
|
|
|
|
if (!get_module()->trailing_dbg_line_info().empty()) {
|
|
modified = true;
|
|
get_module()->trailing_dbg_line_info().clear();
|
|
}
|
|
|
|
return modified ? Status::SuccessWithChange : Status::SuccessWithoutChange;
|
|
}
|
|
|
|
} // namespace opt
|
|
} // namespace spvtools
|