mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-12-26 09:41:03 +00:00
b407163ef3
In logical addressing mode, we are not allowed to generate variables pointers. There is already a check for OpSelect. However, OpPhi and OpPtrAccessChain are not checked to make sure it does not generate an variable pointer. I've added those checks. Fixes #1957.
2066 lines
62 KiB
C++
2066 lines
62 KiB
C++
// Copyright (c) 2015-2016 The Khronos Group 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.
|
|
|
|
// Validation tests for Control Flow Graph
|
|
|
|
#include <array>
|
|
#include <functional>
|
|
#include <iterator>
|
|
#include <sstream>
|
|
#include <string>
|
|
#include <utility>
|
|
#include <vector>
|
|
|
|
#include "gmock/gmock.h"
|
|
|
|
#include "source/diagnostic.h"
|
|
#include "source/val/validate.h"
|
|
#include "test/test_fixture.h"
|
|
#include "test/unit_spirv.h"
|
|
#include "test/val/val_fixtures.h"
|
|
|
|
namespace spvtools {
|
|
namespace val {
|
|
namespace {
|
|
|
|
using ::testing::HasSubstr;
|
|
using ::testing::MatchesRegex;
|
|
|
|
using ValidateCFG = spvtest::ValidateBase<SpvCapability>;
|
|
using spvtest::ScopedContext;
|
|
|
|
std::string nameOps() { return ""; }
|
|
|
|
template <typename... Args>
|
|
std::string nameOps(std::pair<std::string, std::string> head, Args... names) {
|
|
return "OpName %" + head.first + " \"" + head.second + "\"\n" +
|
|
nameOps(names...);
|
|
}
|
|
|
|
template <typename... Args>
|
|
std::string nameOps(std::string head, Args... names) {
|
|
return "OpName %" + head + " \"" + head + "\"\n" + nameOps(names...);
|
|
}
|
|
|
|
/// This class allows the easy creation of complex control flow without writing
|
|
/// SPIR-V. This class is used in the test cases below.
|
|
class Block {
|
|
std::string label_;
|
|
std::string body_;
|
|
SpvOp type_;
|
|
std::vector<Block> successors_;
|
|
|
|
public:
|
|
/// Creates a Block with a given label
|
|
///
|
|
/// @param[in]: label the label id of the block
|
|
/// @param[in]: type the branch instruciton that ends the block
|
|
explicit Block(std::string label, SpvOp type = SpvOpBranch)
|
|
: label_(label), body_(), type_(type), successors_() {}
|
|
|
|
/// Sets the instructions which will appear in the body of the block
|
|
Block& SetBody(std::string body) {
|
|
body_ = body;
|
|
return *this;
|
|
}
|
|
|
|
Block& AppendBody(std::string body) {
|
|
body_ += body;
|
|
return *this;
|
|
}
|
|
|
|
/// Converts the block into a SPIR-V string
|
|
operator std::string() {
|
|
std::stringstream out;
|
|
out << std::setw(8) << "%" + label_ + " = OpLabel \n";
|
|
if (!body_.empty()) {
|
|
out << body_;
|
|
}
|
|
|
|
switch (type_) {
|
|
case SpvOpBranchConditional:
|
|
out << "OpBranchConditional %cond ";
|
|
for (Block& b : successors_) {
|
|
out << "%" + b.label_ + " ";
|
|
}
|
|
break;
|
|
case SpvOpSwitch: {
|
|
out << "OpSwitch %one %" + successors_.front().label_;
|
|
std::stringstream ss;
|
|
for (size_t i = 1; i < successors_.size(); i++) {
|
|
ss << " " << i << " %" << successors_[i].label_;
|
|
}
|
|
out << ss.str();
|
|
} break;
|
|
case SpvOpReturn:
|
|
assert(successors_.size() == 0);
|
|
out << "OpReturn\n";
|
|
break;
|
|
case SpvOpUnreachable:
|
|
assert(successors_.size() == 0);
|
|
out << "OpUnreachable\n";
|
|
break;
|
|
case SpvOpBranch:
|
|
assert(successors_.size() == 1);
|
|
out << "OpBranch %" + successors_.front().label_;
|
|
break;
|
|
default:
|
|
assert(1 == 0 && "Unhandled");
|
|
}
|
|
out << "\n";
|
|
|
|
return out.str();
|
|
}
|
|
friend Block& operator>>(Block& curr, std::vector<Block> successors);
|
|
friend Block& operator>>(Block& lhs, Block& successor);
|
|
};
|
|
|
|
/// Assigns the successors for the Block on the lhs
|
|
Block& operator>>(Block& lhs, std::vector<Block> successors) {
|
|
if (lhs.type_ == SpvOpBranchConditional) {
|
|
assert(successors.size() == 2);
|
|
} else if (lhs.type_ == SpvOpSwitch) {
|
|
assert(successors.size() > 1);
|
|
}
|
|
lhs.successors_ = successors;
|
|
return lhs;
|
|
}
|
|
|
|
/// Assigns the successor for the Block on the lhs
|
|
Block& operator>>(Block& lhs, Block& successor) {
|
|
assert(lhs.type_ == SpvOpBranch);
|
|
lhs.successors_.push_back(successor);
|
|
return lhs;
|
|
}
|
|
|
|
const char* header(SpvCapability cap) {
|
|
static const char* shader_header =
|
|
"OpCapability Shader\n"
|
|
"OpCapability Linkage\n"
|
|
"OpMemoryModel Logical GLSL450\n";
|
|
|
|
static const char* kernel_header =
|
|
"OpCapability Kernel\n"
|
|
"OpCapability Linkage\n"
|
|
"OpMemoryModel Logical OpenCL\n";
|
|
|
|
return (cap == SpvCapabilityShader) ? shader_header : kernel_header;
|
|
}
|
|
|
|
const char* types_consts() {
|
|
static const char* types =
|
|
"%voidt = OpTypeVoid\n"
|
|
"%boolt = OpTypeBool\n"
|
|
"%intt = OpTypeInt 32 0\n"
|
|
"%one = OpConstant %intt 1\n"
|
|
"%two = OpConstant %intt 2\n"
|
|
"%ptrt = OpTypePointer Function %intt\n"
|
|
"%funct = OpTypeFunction %voidt\n";
|
|
|
|
return types;
|
|
}
|
|
|
|
INSTANTIATE_TEST_CASE_P(StructuredControlFlow, ValidateCFG,
|
|
::testing::Values(SpvCapabilityShader,
|
|
SpvCapabilityKernel));
|
|
|
|
TEST_P(ValidateCFG, LoopReachableFromEntryButNeverLeadingToReturn) {
|
|
// In this case, the loop is reachable from a node without a predecessor,
|
|
// but never reaches a node with a return.
|
|
//
|
|
// This motivates the need for the pseudo-exit node to have a node
|
|
// from a cycle in its predecessors list. Otherwise the validator's
|
|
// post-dominance calculation will go into an infinite loop.
|
|
//
|
|
// For more motivation, see
|
|
// https://github.com/KhronosGroup/SPIRV-Tools/issues/279
|
|
std::string str = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
|
|
OpName %entry "entry"
|
|
OpName %loop "loop"
|
|
OpName %exit "exit"
|
|
|
|
%voidt = OpTypeVoid
|
|
%funct = OpTypeFunction %voidt
|
|
|
|
%main = OpFunction %voidt None %funct
|
|
%entry = OpLabel
|
|
OpBranch %loop
|
|
%loop = OpLabel
|
|
OpLoopMerge %exit %loop None
|
|
OpBranch %loop
|
|
%exit = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions()) << str;
|
|
}
|
|
|
|
TEST_P(ValidateCFG, LoopUnreachableFromEntryButLeadingToReturn) {
|
|
// In this case, the loop is not reachable from a node without a
|
|
// predecessor, but eventually reaches a node with a return.
|
|
//
|
|
// This motivates the need for the pseudo-entry node to have a node
|
|
// from a cycle in its successors list. Otherwise the validator's
|
|
// dominance calculation will go into an infinite loop.
|
|
//
|
|
// For more motivation, see
|
|
// https://github.com/KhronosGroup/SPIRV-Tools/issues/279
|
|
// Before that fix, we'd have an infinite loop when calculating
|
|
// post-dominators.
|
|
std::string str = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
|
|
OpName %entry "entry"
|
|
OpName %loop "loop"
|
|
OpName %cont "cont"
|
|
OpName %exit "exit"
|
|
|
|
%voidt = OpTypeVoid
|
|
%funct = OpTypeFunction %voidt
|
|
%boolt = OpTypeBool
|
|
%false = OpConstantFalse %boolt
|
|
|
|
%main = OpFunction %voidt None %funct
|
|
%entry = OpLabel
|
|
OpReturn
|
|
|
|
%loop = OpLabel
|
|
OpLoopMerge %exit %cont None
|
|
OpBranch %cont
|
|
|
|
%cont = OpLabel
|
|
OpBranchConditional %false %loop %exit
|
|
|
|
%exit = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions())
|
|
<< str << getDiagnosticString();
|
|
}
|
|
|
|
TEST_P(ValidateCFG, Simple) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop", SpvOpBranchConditional);
|
|
Block cont("cont");
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) {
|
|
loop.SetBody("OpLoopMerge %merge %cont None\n");
|
|
}
|
|
|
|
std::string str = header(GetParam()) +
|
|
nameOps("loop", "entry", "cont", "merge",
|
|
std::make_pair("func", "Main")) +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
str += loop >> std::vector<Block>({cont, merge});
|
|
str += cont >> loop;
|
|
str += merge;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_P(ValidateCFG, Variable) {
|
|
Block entry("entry");
|
|
Block cont("cont");
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%var = OpVariable %ptrt Function\n");
|
|
|
|
std::string str = header(GetParam()) +
|
|
nameOps(std::make_pair("func", "Main")) + types_consts() +
|
|
" %func = OpFunction %voidt None %funct\n";
|
|
str += entry >> cont;
|
|
str += cont >> exit;
|
|
str += exit;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_P(ValidateCFG, VariableNotInFirstBlockBad) {
|
|
Block entry("entry");
|
|
Block cont("cont");
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
// This operation should only be performed in the entry block
|
|
cont.SetBody("%var = OpVariable %ptrt Function\n");
|
|
|
|
std::string str = header(GetParam()) +
|
|
nameOps(std::make_pair("func", "Main")) + types_consts() +
|
|
" %func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> cont;
|
|
str += cont >> exit;
|
|
str += exit;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr(
|
|
"Variables can only be defined in the first block of a function"));
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BlockSelfLoopIsOk) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop", SpvOpBranchConditional);
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) loop.SetBody("OpLoopMerge %merge %loop None\n");
|
|
|
|
std::string str = header(GetParam()) +
|
|
nameOps("loop", "merge", std::make_pair("func", "Main")) +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
// loop branches to itself, but does not trigger an error.
|
|
str += loop >> std::vector<Block>({merge, loop});
|
|
str += merge;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions()) << getDiagnosticString();
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BlockAppearsBeforeDominatorBad) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block cont("cont");
|
|
Block branch("branch", SpvOpBranchConditional);
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) branch.SetBody("OpSelectionMerge %merge None\n");
|
|
|
|
std::string str = header(GetParam()) +
|
|
nameOps("cont", "branch", std::make_pair("func", "Main")) +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> branch;
|
|
str += cont >> merge; // cont appears before its dominator
|
|
str += branch >> std::vector<Block>({cont, merge});
|
|
str += merge;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("Block .\\[cont\\] appears in the binary "
|
|
"before its dominator .\\[branch\\]\n"
|
|
" %branch = OpLabel\n"));
|
|
}
|
|
|
|
TEST_P(ValidateCFG, MergeBlockTargetedByMultipleHeaderBlocksBad) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop");
|
|
Block selection("selection", SpvOpBranchConditional);
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) loop.SetBody(" OpLoopMerge %merge %loop None\n");
|
|
|
|
// cannot share the same merge
|
|
if (is_shader) selection.SetBody("OpSelectionMerge %merge None\n");
|
|
|
|
std::string str =
|
|
header(GetParam()) + nameOps("merge", std::make_pair("func", "Main")) +
|
|
types_consts() + "%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
str += loop >> selection;
|
|
str += selection >> std::vector<Block>({loop, merge});
|
|
str += merge;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("Block .\\[merge\\] is already a merge block "
|
|
"for another header\n"
|
|
" %Main = OpFunction %void None %9\n"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, MergeBlockTargetedByMultipleHeaderBlocksSelectionBad) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop", SpvOpBranchConditional);
|
|
Block selection("selection", SpvOpBranchConditional);
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) selection.SetBody(" OpSelectionMerge %merge None\n");
|
|
|
|
// cannot share the same merge
|
|
if (is_shader) loop.SetBody(" OpLoopMerge %merge %loop None\n");
|
|
|
|
std::string str =
|
|
header(GetParam()) + nameOps("merge", std::make_pair("func", "Main")) +
|
|
types_consts() + "%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> selection;
|
|
str += selection >> std::vector<Block>({merge, loop});
|
|
str += loop >> std::vector<Block>({loop, merge});
|
|
str += merge;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("Block .\\[merge\\] is already a merge block "
|
|
"for another header\n"
|
|
" %Main = OpFunction %void None %9\n"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BranchTargetFirstBlockBadSinceEntryBlock) {
|
|
Block entry("entry");
|
|
Block bad("bad");
|
|
Block end("end", SpvOpReturn);
|
|
std::string str = header(GetParam()) +
|
|
nameOps("entry", "bad", std::make_pair("func", "Main")) +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> bad;
|
|
str += bad >> entry; // Cannot target entry block
|
|
str += end;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("First block .\\[entry\\] of function .\\[Main\\] "
|
|
"is targeted by block .\\[bad\\]\n"
|
|
" %Main = OpFunction %void None %10\n"));
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BranchTargetFirstBlockBadSinceValue) {
|
|
Block entry("entry");
|
|
entry.SetBody("%undef = OpUndef %voidt\n");
|
|
Block bad("bad");
|
|
Block end("end", SpvOpReturn);
|
|
Block badvalue("undef"); // This referenes the OpUndef.
|
|
std::string str = header(GetParam()) +
|
|
nameOps("entry", "bad", std::make_pair("func", "Main")) +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> bad;
|
|
str +=
|
|
bad >> badvalue; // Check branch to a function value (it's not a block!)
|
|
str += end;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("Block\\(s\\) \\{..\\} are referenced but not "
|
|
"defined in function .\\[Main\\]\n"
|
|
" %Main = OpFunction %void None %10\n"))
|
|
<< str;
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BranchConditionalTrueTargetFirstBlockBad) {
|
|
Block entry("entry");
|
|
Block bad("bad", SpvOpBranchConditional);
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
bad.SetBody(" OpLoopMerge %entry %exit None\n");
|
|
|
|
std::string str = header(GetParam()) +
|
|
nameOps("entry", "bad", std::make_pair("func", "Main")) +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> bad;
|
|
str += bad >> std::vector<Block>({entry, exit}); // cannot target entry block
|
|
str += exit;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("First block .\\[entry\\] of function .\\[Main\\] "
|
|
"is targeted by block .\\[bad\\]\n"
|
|
" %Main = OpFunction %void None %10\n"));
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BranchConditionalFalseTargetFirstBlockBad) {
|
|
Block entry("entry");
|
|
Block bad("bad", SpvOpBranchConditional);
|
|
Block t("t");
|
|
Block merge("merge");
|
|
Block end("end", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
bad.SetBody("OpLoopMerge %merge %cont None\n");
|
|
|
|
std::string str = header(GetParam()) +
|
|
nameOps("entry", "bad", std::make_pair("func", "Main")) +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> bad;
|
|
str += bad >> std::vector<Block>({t, entry});
|
|
str += merge >> end;
|
|
str += end;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("First block .\\[entry\\] of function .\\[Main\\] "
|
|
"is targeted by block .\\[bad\\]\n"
|
|
" %Main = OpFunction %void None %10\n"));
|
|
}
|
|
|
|
TEST_P(ValidateCFG, SwitchTargetFirstBlockBad) {
|
|
Block entry("entry");
|
|
Block bad("bad", SpvOpSwitch);
|
|
Block block1("block1");
|
|
Block block2("block2");
|
|
Block block3("block3");
|
|
Block def("def"); // default block
|
|
Block merge("merge");
|
|
Block end("end", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
bad.SetBody("OpSelectionMerge %merge None\n");
|
|
|
|
std::string str = header(GetParam()) +
|
|
nameOps("entry", "bad", std::make_pair("func", "Main")) +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> bad;
|
|
str += bad >> std::vector<Block>({def, block1, block2, block3, entry});
|
|
str += def >> merge;
|
|
str += block1 >> merge;
|
|
str += block2 >> merge;
|
|
str += block3 >> merge;
|
|
str += merge >> end;
|
|
str += end;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("First block .\\[entry\\] of function .\\[Main\\] "
|
|
"is targeted by block .\\[bad\\]\n"
|
|
" %Main = OpFunction %void None %10\n"));
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BranchToBlockInOtherFunctionBad) {
|
|
Block entry("entry");
|
|
Block middle("middle", SpvOpBranchConditional);
|
|
Block end("end", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
middle.SetBody("OpSelectionMerge %end None\n");
|
|
|
|
Block entry2("entry2");
|
|
Block middle2("middle2");
|
|
Block end2("end2", SpvOpReturn);
|
|
|
|
std::string str =
|
|
header(GetParam()) + nameOps("middle2", std::make_pair("func", "Main")) +
|
|
types_consts() + "%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> middle;
|
|
str += middle >> std::vector<Block>({end, middle2});
|
|
str += end;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
str += "%func2 = OpFunction %voidt None %funct\n";
|
|
str += entry2 >> middle2;
|
|
str += middle2 >> end2;
|
|
str += end2;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
MatchesRegex("Block\\(s\\) \\{.\\[middle2\\]\\} are referenced but not "
|
|
"defined in function .\\[Main\\]\n"
|
|
" %Main = OpFunction %void None %9\n"));
|
|
}
|
|
|
|
TEST_P(ValidateCFG, HeaderDoesntDominatesMergeBad) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block head("head", SpvOpBranchConditional);
|
|
Block f("f");
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
head.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
|
|
if (is_shader) head.AppendBody("OpSelectionMerge %merge None\n");
|
|
|
|
std::string str = header(GetParam()) +
|
|
nameOps("head", "merge", std::make_pair("func", "Main")) +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> merge;
|
|
str += head >> std::vector<Block>({merge, f});
|
|
str += f >> merge;
|
|
str += merge;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
MatchesRegex("The selection construct with the selection header "
|
|
".\\[head\\] does not dominate the merge block "
|
|
".\\[merge\\]\n %merge = OpLabel\n"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, HeaderDoesntStrictlyDominateMergeBad) {
|
|
// If a merge block is reachable, then it must be strictly dominated by
|
|
// its header block.
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block head("head", SpvOpBranchConditional);
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
head.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
|
|
if (is_shader) head.AppendBody("OpSelectionMerge %head None\n");
|
|
|
|
std::string str = header(GetParam()) +
|
|
nameOps("head", "exit", std::make_pair("func", "Main")) +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += head >> std::vector<Block>({exit, exit});
|
|
str += exit;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
MatchesRegex("The selection construct with the selection header "
|
|
".\\[head\\] does not strictly dominate the merge block "
|
|
".\\[head\\]\n %head = OpLabel\n"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions()) << str;
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableMerge) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block branch("branch", SpvOpBranchConditional);
|
|
Block t("t", SpvOpReturn);
|
|
Block f("f", SpvOpReturn);
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) branch.AppendBody("OpSelectionMerge %merge None\n");
|
|
|
|
std::string str = header(GetParam()) +
|
|
nameOps("branch", "merge", std::make_pair("func", "Main")) +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> branch;
|
|
str += branch >> std::vector<Block>({t, f});
|
|
str += t;
|
|
str += f;
|
|
str += merge;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableMergeDefinedByOpUnreachable) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block branch("branch", SpvOpBranchConditional);
|
|
Block t("t", SpvOpReturn);
|
|
Block f("f", SpvOpReturn);
|
|
Block merge("merge", SpvOpUnreachable);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) branch.AppendBody("OpSelectionMerge %merge None\n");
|
|
|
|
std::string str = header(GetParam()) +
|
|
nameOps("branch", "merge", std::make_pair("func", "Main")) +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> branch;
|
|
str += branch >> std::vector<Block>({t, f});
|
|
str += t;
|
|
str += f;
|
|
str += merge;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableBlock) {
|
|
Block entry("entry");
|
|
Block unreachable("unreachable");
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
std::string str =
|
|
header(GetParam()) +
|
|
nameOps("unreachable", "exit", std::make_pair("func", "Main")) +
|
|
types_consts() + "%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> exit;
|
|
str += unreachable >> exit;
|
|
str += exit;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_P(ValidateCFG, UnreachableBranch) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block unreachable("unreachable", SpvOpBranchConditional);
|
|
Block unreachablechildt("unreachablechildt");
|
|
Block unreachablechildf("unreachablechildf");
|
|
Block merge("merge");
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
unreachable.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) unreachable.AppendBody("OpSelectionMerge %merge None\n");
|
|
std::string str =
|
|
header(GetParam()) +
|
|
nameOps("unreachable", "exit", std::make_pair("func", "Main")) +
|
|
types_consts() + "%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> exit;
|
|
str +=
|
|
unreachable >> std::vector<Block>({unreachablechildt, unreachablechildf});
|
|
str += unreachablechildt >> merge;
|
|
str += unreachablechildf >> merge;
|
|
str += merge >> exit;
|
|
str += exit;
|
|
str += "OpFunctionEnd\n";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_P(ValidateCFG, EmptyFunction) {
|
|
std::string str = header(GetParam()) + std::string(types_consts()) +
|
|
R"(%func = OpFunction %voidt None %funct
|
|
%l = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd)";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_P(ValidateCFG, SingleBlockLoop) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop", SpvOpBranchConditional);
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) loop.AppendBody("OpLoopMerge %exit %loop None\n");
|
|
|
|
std::string str = header(GetParam()) + std::string(types_consts()) +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
str += loop >> std::vector<Block>({loop, exit});
|
|
str += exit;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_P(ValidateCFG, NestedLoops) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop1("loop1");
|
|
Block loop1_cont_break_block("loop1_cont_break_block",
|
|
SpvOpBranchConditional);
|
|
Block loop2("loop2", SpvOpBranchConditional);
|
|
Block loop2_merge("loop2_merge");
|
|
Block loop1_merge("loop1_merge");
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) {
|
|
loop1.SetBody("OpLoopMerge %loop1_merge %loop2 None\n");
|
|
loop2.SetBody("OpLoopMerge %loop2_merge %loop2 None\n");
|
|
}
|
|
|
|
std::string str = header(GetParam()) + nameOps("loop2", "loop2_merge") +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop1;
|
|
str += loop1 >> loop1_cont_break_block;
|
|
str += loop1_cont_break_block >> std::vector<Block>({loop1_merge, loop2});
|
|
str += loop2 >> std::vector<Block>({loop2, loop2_merge});
|
|
str += loop2_merge >> loop1;
|
|
str += loop1_merge >> exit;
|
|
str += exit;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_P(ValidateCFG, NestedSelection) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
const int N = 256;
|
|
std::vector<Block> if_blocks;
|
|
std::vector<Block> merge_blocks;
|
|
Block inner("inner");
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
|
|
if_blocks.emplace_back("if0", SpvOpBranchConditional);
|
|
|
|
if (is_shader) if_blocks[0].SetBody("OpSelectionMerge %if_merge0 None\n");
|
|
merge_blocks.emplace_back("if_merge0", SpvOpReturn);
|
|
|
|
for (int i = 1; i < N; i++) {
|
|
std::stringstream ss;
|
|
ss << i;
|
|
if_blocks.emplace_back("if" + ss.str(), SpvOpBranchConditional);
|
|
if (is_shader)
|
|
if_blocks[i].SetBody("OpSelectionMerge %if_merge" + ss.str() + " None\n");
|
|
merge_blocks.emplace_back("if_merge" + ss.str(), SpvOpBranch);
|
|
}
|
|
std::string str = header(GetParam()) + std::string(types_consts()) +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> if_blocks[0];
|
|
for (int i = 0; i < N - 1; i++) {
|
|
str +=
|
|
if_blocks[i] >> std::vector<Block>({if_blocks[i + 1], merge_blocks[i]});
|
|
}
|
|
str += if_blocks.back() >> std::vector<Block>({inner, merge_blocks.back()});
|
|
str += inner >> merge_blocks.back();
|
|
for (int i = N - 1; i > 0; i--) {
|
|
str += merge_blocks[i] >> merge_blocks[i - 1];
|
|
}
|
|
str += merge_blocks[0];
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BackEdgeBlockDoesntPostDominateContinueTargetBad) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop1("loop1", SpvOpBranchConditional);
|
|
Block loop2("loop2", SpvOpBranchConditional);
|
|
Block loop2_merge("loop2_merge", SpvOpBranchConditional);
|
|
Block be_block("be_block");
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) {
|
|
loop1.SetBody("OpLoopMerge %exit %loop2_merge None\n");
|
|
loop2.SetBody("OpLoopMerge %loop2_merge %loop2 None\n");
|
|
}
|
|
|
|
std::string str = header(GetParam()) +
|
|
nameOps("loop1", "loop2", "be_block", "loop2_merge") +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop1;
|
|
str += loop1 >> std::vector<Block>({loop2, exit});
|
|
str += loop2 >> std::vector<Block>({loop2, loop2_merge});
|
|
str += loop2_merge >> std::vector<Block>({be_block, exit});
|
|
str += be_block >> loop1;
|
|
str += exit;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
if (GetParam() == SpvCapabilityShader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("The continue construct with the continue target "
|
|
".\\[loop2_merge\\] is not post dominated by the "
|
|
"back-edge block .\\[be_block\\]\n"
|
|
" %be_block = OpLabel\n"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BranchingToNonLoopHeaderBlockBad) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block split("split", SpvOpBranchConditional);
|
|
Block t("t");
|
|
Block f("f");
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) split.SetBody("OpSelectionMerge %exit None\n");
|
|
|
|
std::string str = header(GetParam()) + nameOps("split", "f") +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> split;
|
|
str += split >> std::vector<Block>({t, f});
|
|
str += t >> exit;
|
|
str += f >> split;
|
|
str += exit;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
MatchesRegex("Back-edges \\(.\\[f\\] -> .\\[split\\]\\) can only "
|
|
"be formed between a block and a loop header.\n"
|
|
" %f = OpLabel\n"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BranchingToSameNonLoopHeaderBlockBad) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block split("split", SpvOpBranchConditional);
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) split.SetBody("OpSelectionMerge %exit None\n");
|
|
|
|
std::string str = header(GetParam()) + nameOps("split") + types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> split;
|
|
str += split >> std::vector<Block>({split, exit});
|
|
str += exit;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex(
|
|
"Back-edges \\(.\\[split\\] -> .\\[split\\]\\) can only be "
|
|
"formed between a block and a loop header.\n"
|
|
" %split = OpLabel\n"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, MultipleBackEdgeBlocksToLoopHeaderBad) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop", SpvOpBranchConditional);
|
|
Block back0("back0");
|
|
Block back1("back1");
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) loop.SetBody("OpLoopMerge %merge %back0 None\n");
|
|
|
|
std::string str = header(GetParam()) + nameOps("loop", "back0", "back1") +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
str += loop >> std::vector<Block>({back0, back1});
|
|
str += back0 >> loop;
|
|
str += back1 >> loop;
|
|
str += merge;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex(
|
|
"Loop header .\\[loop\\] is targeted by 2 back-edge blocks "
|
|
"but the standard requires exactly one\n"
|
|
" %loop = OpLabel\n"))
|
|
<< str;
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, ContinueTargetMustBePostDominatedByBackEdge) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop", SpvOpBranchConditional);
|
|
Block cheader("cheader", SpvOpBranchConditional);
|
|
Block be_block("be_block");
|
|
Block merge("merge", SpvOpReturn);
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) loop.SetBody("OpLoopMerge %merge %cheader None\n");
|
|
|
|
std::string str = header(GetParam()) + nameOps("cheader", "be_block") +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
str += loop >> std::vector<Block>({cheader, merge});
|
|
str += cheader >> std::vector<Block>({exit, be_block});
|
|
str += exit; // Branches out of a continue construct
|
|
str += be_block >> loop;
|
|
str += merge;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("The continue construct with the continue target "
|
|
".\\[cheader\\] is not post dominated by the "
|
|
"back-edge block .\\[be_block\\]\n"
|
|
" %be_block = OpLabel\n"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BranchOutOfConstructToMergeBad) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop", SpvOpBranchConditional);
|
|
Block cont("cont", SpvOpBranchConditional);
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) loop.SetBody("OpLoopMerge %merge %loop None\n");
|
|
|
|
std::string str = header(GetParam()) + nameOps("cont", "loop") +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
str += loop >> std::vector<Block>({cont, merge});
|
|
str += cont >> std::vector<Block>({loop, merge});
|
|
str += merge;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("The continue construct with the continue target "
|
|
".\\[loop\\] is not post dominated by the "
|
|
"back-edge block .\\[cont\\]\n"
|
|
" %cont = OpLabel\n"))
|
|
<< str;
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_P(ValidateCFG, BranchOutOfConstructBad) {
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop", SpvOpBranchConditional);
|
|
Block cont("cont", SpvOpBranchConditional);
|
|
Block merge("merge");
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) loop.SetBody("OpLoopMerge %merge %loop None\n");
|
|
|
|
std::string str = header(GetParam()) + nameOps("cont", "loop") +
|
|
types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
str += loop >> std::vector<Block>({cont, merge});
|
|
str += cont >> std::vector<Block>({loop, exit});
|
|
str += merge >> exit;
|
|
str += exit;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
if (is_shader) {
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
MatchesRegex("The continue construct with the continue target "
|
|
".\\[loop\\] is not post dominated by the "
|
|
"back-edge block .\\[cont\\]\n"
|
|
" %cont = OpLabel\n"));
|
|
} else {
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
}
|
|
|
|
TEST_F(ValidateCFG, OpSwitchToUnreachableBlock) {
|
|
Block entry("entry", SpvOpSwitch);
|
|
Block case0("case0");
|
|
Block case1("case1");
|
|
Block case2("case2");
|
|
Block def("default", SpvOpUnreachable);
|
|
Block phi("phi", SpvOpReturn);
|
|
|
|
std::string str = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint GLCompute %main "main" %id
|
|
OpExecutionMode %main LocalSize 1 1 1
|
|
OpSource GLSL 430
|
|
OpName %main "main"
|
|
OpDecorate %id BuiltIn GlobalInvocationId
|
|
%void = OpTypeVoid
|
|
%voidf = OpTypeFunction %void
|
|
%u32 = OpTypeInt 32 0
|
|
%f32 = OpTypeFloat 32
|
|
%uvec3 = OpTypeVector %u32 3
|
|
%fvec3 = OpTypeVector %f32 3
|
|
%uvec3ptr = OpTypePointer Input %uvec3
|
|
%id = OpVariable %uvec3ptr Input
|
|
%one = OpConstant %u32 1
|
|
%three = OpConstant %u32 3
|
|
%main = OpFunction %void None %voidf
|
|
)";
|
|
|
|
entry.SetBody(
|
|
"%idval = OpLoad %uvec3 %id\n"
|
|
"%x = OpCompositeExtract %u32 %idval 0\n"
|
|
"%selector = OpUMod %u32 %x %three\n"
|
|
"OpSelectionMerge %phi None\n");
|
|
str += entry >> std::vector<Block>({def, case0, case1, case2});
|
|
str += case1 >> phi;
|
|
str += def;
|
|
str += phi;
|
|
str += case0 >> phi;
|
|
str += case2 >> phi;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, LoopWithZeroBackEdgesBad) {
|
|
std::string str = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main"
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpName %loop "loop"
|
|
%voidt = OpTypeVoid
|
|
%funct = OpTypeFunction %voidt
|
|
%main = OpFunction %voidt None %funct
|
|
%loop = OpLabel
|
|
OpLoopMerge %exit %exit None
|
|
OpBranch %exit
|
|
%exit = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
CompileSuccessfully(str);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
MatchesRegex("Loop header .\\[loop\\] is targeted by "
|
|
"0 back-edge blocks but the standard requires exactly "
|
|
"one\n %loop = OpLabel\n"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, LoopWithBackEdgeFromUnreachableContinueConstructGood) {
|
|
std::string str = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main"
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpName %loop "loop"
|
|
%voidt = OpTypeVoid
|
|
%funct = OpTypeFunction %voidt
|
|
%floatt = OpTypeFloat 32
|
|
%boolt = OpTypeBool
|
|
%one = OpConstant %floatt 1
|
|
%two = OpConstant %floatt 2
|
|
%main = OpFunction %voidt None %funct
|
|
%entry = OpLabel
|
|
OpBranch %loop
|
|
%loop = OpLabel
|
|
OpLoopMerge %exit %cont None
|
|
OpBranch %16
|
|
%16 = OpLabel
|
|
%cond = OpFOrdLessThan %boolt %one %two
|
|
OpBranchConditional %cond %body %exit
|
|
%body = OpLabel
|
|
OpReturn
|
|
%cont = OpLabel ; Reachable only from OpLoopMerge ContinueTarget parameter
|
|
OpBranch %loop ; Should be considered a back-edge
|
|
%exit = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(str);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions()) << getDiagnosticString();
|
|
}
|
|
|
|
TEST_P(ValidateCFG,
|
|
NestedConstructWithUnreachableMergeBlockBranchingToOuterMergeBlock) {
|
|
// Test for https://github.com/KhronosGroup/SPIRV-Tools/issues/297
|
|
// The nested construct has an unreachable merge block. In the
|
|
// augmented CFG that merge block
|
|
// we still determine that the
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry", SpvOpBranchConditional);
|
|
Block inner_head("inner_head", SpvOpBranchConditional);
|
|
Block inner_true("inner_true", SpvOpReturn);
|
|
Block inner_false("inner_false", SpvOpReturn);
|
|
Block inner_merge("inner_merge");
|
|
Block exit("exit", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) {
|
|
entry.AppendBody("OpSelectionMerge %exit None\n");
|
|
inner_head.SetBody("OpSelectionMerge %inner_merge None\n");
|
|
}
|
|
|
|
std::string str = header(GetParam()) +
|
|
nameOps("entry", "inner_merge", "exit") + types_consts() +
|
|
"%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> std::vector<Block>({inner_head, exit});
|
|
str += inner_head >> std::vector<Block>({inner_true, inner_false});
|
|
str += inner_true;
|
|
str += inner_false;
|
|
str += inner_merge >> exit;
|
|
str += exit;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions()) << getDiagnosticString();
|
|
}
|
|
|
|
TEST_P(ValidateCFG, ContinueTargetCanBeMergeBlockForNestedStructureGood) {
|
|
// This example is valid. It shows that the validator can't just add
|
|
// an edge from the loop head to the continue target. If that edge
|
|
// is added, then the "if_merge" block is both the continue target
|
|
// for the loop and also the merge block for the nested selection, but
|
|
// then it wouldn't be dominated by "if_head", the header block for the
|
|
// nested selection.
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop");
|
|
Block if_head("if_head", SpvOpBranchConditional);
|
|
Block if_true("if_true");
|
|
Block if_merge("if_merge", SpvOpBranchConditional);
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) {
|
|
loop.SetBody("OpLoopMerge %merge %if_merge None\n");
|
|
if_head.SetBody("OpSelectionMerge %if_merge None\n");
|
|
}
|
|
|
|
std::string str =
|
|
header(GetParam()) +
|
|
nameOps("entry", "loop", "if_head", "if_true", "if_merge", "merge") +
|
|
types_consts() + "%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
str += loop >> if_head;
|
|
str += if_head >> std::vector<Block>({if_true, if_merge});
|
|
str += if_true >> if_merge;
|
|
str += if_merge >> std::vector<Block>({loop, merge});
|
|
str += merge;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions()) << getDiagnosticString();
|
|
}
|
|
|
|
TEST_P(ValidateCFG, SingleLatchBlockMultipleBranchesToLoopHeader) {
|
|
// This test case ensures we allow both branches of a loop latch block
|
|
// to go back to the loop header. It still counts as a single back edge.
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop", SpvOpBranchConditional);
|
|
Block latch("latch", SpvOpBranchConditional);
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) {
|
|
loop.SetBody("OpLoopMerge %merge %latch None\n");
|
|
}
|
|
|
|
std::string str =
|
|
header(GetParam()) + nameOps("entry", "loop", "latch", "merge") +
|
|
types_consts() + "%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
str += loop >> std::vector<Block>({latch, merge});
|
|
str += latch >> std::vector<Block>({loop, loop}); // This is the key
|
|
str += merge;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions())
|
|
<< str << getDiagnosticString();
|
|
}
|
|
|
|
TEST_P(ValidateCFG, SingleLatchBlockHeaderContinueTargetIsItselfGood) {
|
|
// This test case ensures we don't count a Continue Target from a loop
|
|
// header to itself as a self-loop when computing back edges.
|
|
// Also, it detects that there is an edge from %latch to the pseudo-exit
|
|
// node, rather than from %loop. In particular, it detects that we
|
|
// have used the *reverse* textual order of blocks when computing
|
|
// predecessor traversal roots.
|
|
bool is_shader = GetParam() == SpvCapabilityShader;
|
|
Block entry("entry");
|
|
Block loop("loop");
|
|
Block latch("latch");
|
|
Block merge("merge", SpvOpReturn);
|
|
|
|
entry.SetBody("%cond = OpSLessThan %boolt %one %two\n");
|
|
if (is_shader) {
|
|
loop.SetBody("OpLoopMerge %merge %loop None\n");
|
|
}
|
|
|
|
std::string str =
|
|
header(GetParam()) + nameOps("entry", "loop", "latch", "merge") +
|
|
types_consts() + "%func = OpFunction %voidt None %funct\n";
|
|
|
|
str += entry >> loop;
|
|
str += loop >> latch;
|
|
str += latch >> loop;
|
|
str += merge;
|
|
str += "OpFunctionEnd";
|
|
|
|
CompileSuccessfully(str);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions())
|
|
<< str << getDiagnosticString();
|
|
}
|
|
|
|
// Unit test to check the case where a basic block is the entry block of 2
|
|
// different constructs. In this case, the basic block is the entry block of a
|
|
// continue construct as well as a selection construct. See issue# 517 for more
|
|
// details.
|
|
TEST_F(ValidateCFG, BasicBlockIsEntryBlockOfTwoConstructsGood) {
|
|
std::string spirv = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%int = OpTypeInt 32 1
|
|
%void_func = OpTypeFunction %void
|
|
%int_0 = OpConstant %int 0
|
|
%testfun = OpFunction %void None %void_func
|
|
%label_1 = OpLabel
|
|
OpBranch %start
|
|
%start = OpLabel
|
|
%cond = OpSLessThan %bool %int_0 %int_0
|
|
;
|
|
; Note: In this case, the "target" block is both the entry block of
|
|
; the continue construct of the loop as well as the entry block of
|
|
; the selection construct.
|
|
;
|
|
OpLoopMerge %loop_merge %target None
|
|
OpBranchConditional %cond %target %loop_merge
|
|
%loop_merge = OpLabel
|
|
OpReturn
|
|
%target = OpLabel
|
|
OpSelectionMerge %selection_merge None
|
|
OpBranchConditional %cond %do_stuff %do_other_stuff
|
|
%do_other_stuff = OpLabel
|
|
OpBranch %selection_merge
|
|
%selection_merge = OpLabel
|
|
OpBranch %start
|
|
%do_stuff = OpLabel
|
|
OpBranch %selection_merge
|
|
OpFunctionEnd
|
|
)";
|
|
CompileSuccessfully(spirv);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, OpReturnInNonVoidFunc) {
|
|
std::string spirv = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%int = OpTypeInt 32 1
|
|
%int_func = OpTypeFunction %int
|
|
%testfun = OpFunction %int None %int_func
|
|
%label_1 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
CompileSuccessfully(spirv);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr(
|
|
"OpReturn can only be called from a function with void return type.\n"
|
|
" OpReturn"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, StructuredCFGBranchIntoSelectionBody) {
|
|
std::string spirv = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %func "func"
|
|
OpExecutionMode %func OriginUpperLeft
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%true = OpConstantTrue %bool
|
|
%functy = OpTypeFunction %void
|
|
%func = OpFunction %void None %functy
|
|
%entry = OpLabel
|
|
OpSelectionMerge %merge None
|
|
OpBranchConditional %true %then %merge
|
|
%merge = OpLabel
|
|
OpBranch %then
|
|
%then = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(spirv);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("branches to the selection construct, but not to the "
|
|
"selection header <ID> 6\n %7 = OpLabel"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, SwitchDefaultOnly) {
|
|
std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeInt 32 0
|
|
%3 = OpConstant %2 0
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpFunction %1 None %4
|
|
%6 = OpLabel
|
|
OpSelectionMerge %7 None
|
|
OpSwitch %3 %7
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, SwitchSingleCase) {
|
|
std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeInt 32 0
|
|
%3 = OpConstant %2 0
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpFunction %1 None %4
|
|
%6 = OpLabel
|
|
OpSelectionMerge %7 None
|
|
OpSwitch %3 %7 0 %8
|
|
%8 = OpLabel
|
|
OpBranch %7
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MultipleFallThroughBlocks) {
|
|
std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeInt 32 0
|
|
%3 = OpConstant %2 0
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpTypeBool
|
|
%6 = OpConstantTrue %5
|
|
%7 = OpFunction %1 None %4
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpSwitch %3 %10 0 %11 1 %12
|
|
%10 = OpLabel
|
|
OpBranchConditional %6 %11 %12
|
|
%11 = OpLabel
|
|
OpBranch %9
|
|
%12 = OpLabel
|
|
OpBranch %9
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr(
|
|
"Case construct that targets 10 has branches to multiple other case "
|
|
"construct targets 12 and 11\n %10 = OpLabel"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MultipleFallThroughToDefault) {
|
|
std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeInt 32 0
|
|
%3 = OpConstant %2 0
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpTypeBool
|
|
%6 = OpConstantTrue %5
|
|
%7 = OpFunction %1 None %4
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpSwitch %3 %10 0 %11 1 %12
|
|
%10 = OpLabel
|
|
OpBranch %9
|
|
%11 = OpLabel
|
|
OpBranch %10
|
|
%12 = OpLabel
|
|
OpBranch %10
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr("Multiple case constructs have branches to the case construct "
|
|
"that targets 10\n %10 = OpLabel"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, MultipleFallThroughToNonDefault) {
|
|
std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeInt 32 0
|
|
%3 = OpConstant %2 0
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpTypeBool
|
|
%6 = OpConstantTrue %5
|
|
%7 = OpFunction %1 None %4
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpSwitch %3 %10 0 %11 1 %12
|
|
%10 = OpLabel
|
|
OpBranch %12
|
|
%11 = OpLabel
|
|
OpBranch %12
|
|
%12 = OpLabel
|
|
OpBranch %9
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr("Multiple case constructs have branches to the case construct "
|
|
"that targets 12\n %12 = OpLabel"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, DuplicateTargetWithFallThrough) {
|
|
std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeInt 32 0
|
|
%3 = OpConstant %2 0
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpTypeBool
|
|
%6 = OpConstantTrue %5
|
|
%7 = OpFunction %1 None %4
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpSwitch %3 %10 0 %10 1 %11
|
|
%10 = OpLabel
|
|
OpBranch %11
|
|
%11 = OpLabel
|
|
OpBranch %9
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, WrongOperandList) {
|
|
std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeInt 32 0
|
|
%3 = OpConstant %2 0
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpTypeBool
|
|
%6 = OpConstantTrue %5
|
|
%7 = OpFunction %1 None %4
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpSwitch %3 %10 0 %11 1 %12
|
|
%10 = OpLabel
|
|
OpBranch %9
|
|
%12 = OpLabel
|
|
OpBranch %11
|
|
%11 = OpLabel
|
|
OpBranch %9
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr("Case construct that targets 12 has branches to the case "
|
|
"construct that targets 11, but does not immediately "
|
|
"precede it in the OpSwitch's target list\n"
|
|
" OpSwitch %uint_0 %10 0 %11 1 %12"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, WrongOperandListThroughDefault) {
|
|
std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeInt 32 0
|
|
%3 = OpConstant %2 0
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpTypeBool
|
|
%6 = OpConstantTrue %5
|
|
%7 = OpFunction %1 None %4
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpSwitch %3 %10 0 %11 1 %12
|
|
%10 = OpLabel
|
|
OpBranch %11
|
|
%12 = OpLabel
|
|
OpBranch %10
|
|
%11 = OpLabel
|
|
OpBranch %9
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr("Case construct that targets 12 has branches to the case "
|
|
"construct that targets 11, but does not immediately "
|
|
"precede it in the OpSwitch's target list\n"
|
|
" OpSwitch %uint_0 %10 0 %11 1 %12"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, WrongOperandListNotLast) {
|
|
std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeInt 32 0
|
|
%3 = OpConstant %2 0
|
|
%4 = OpTypeFunction %1
|
|
%5 = OpTypeBool
|
|
%6 = OpConstantTrue %5
|
|
%7 = OpFunction %1 None %4
|
|
%8 = OpLabel
|
|
OpSelectionMerge %9 None
|
|
OpSwitch %3 %10 0 %11 1 %12 2 %13
|
|
%10 = OpLabel
|
|
OpBranch %9
|
|
%12 = OpLabel
|
|
OpBranch %11
|
|
%11 = OpLabel
|
|
OpBranch %9
|
|
%13 = OpLabel
|
|
OpBranch %9
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr("Case construct that targets 12 has branches to the case "
|
|
"construct that targets 11, but does not immediately "
|
|
"precede it in the OpSwitch's target list\n"
|
|
" OpSwitch %uint_0 %10 0 %11 1 %12 2 %13"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, GoodUnreachableSwitch) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %2 "main"
|
|
OpExecutionMode %2 OriginUpperLeft
|
|
%3 = OpTypeVoid
|
|
%4 = OpTypeFunction %3
|
|
%5 = OpTypeBool
|
|
%6 = OpConstantTrue %5
|
|
%7 = OpTypeInt 32 1
|
|
%9 = OpConstant %7 0
|
|
%2 = OpFunction %3 None %4
|
|
%10 = OpLabel
|
|
OpSelectionMerge %11 None
|
|
OpBranchConditional %6 %12 %13
|
|
%12 = OpLabel
|
|
OpReturn
|
|
%13 = OpLabel
|
|
OpReturn
|
|
%11 = OpLabel
|
|
OpSelectionMerge %14 None
|
|
OpSwitch %9 %14 0 %15
|
|
%15 = OpLabel
|
|
OpBranch %14
|
|
%14 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_THAT(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, InvalidCaseExit) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %1 "func"
|
|
OpExecutionMode %1 OriginUpperLeft
|
|
%2 = OpTypeVoid
|
|
%3 = OpTypeInt 32 0
|
|
%4 = OpTypeFunction %2
|
|
%5 = OpConstant %3 0
|
|
%1 = OpFunction %2 None %4
|
|
%6 = OpLabel
|
|
OpSelectionMerge %7 None
|
|
OpSwitch %5 %7 0 %8 1 %9
|
|
%8 = OpLabel
|
|
OpBranch %10
|
|
%9 = OpLabel
|
|
OpBranch %10
|
|
%10 = OpLabel
|
|
OpReturn
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("Case construct that targets 8 has invalid branch to "
|
|
"block 10 (not another case construct, corresponding "
|
|
"merge, outer loop merge or outer loop continue"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, GoodCaseExitsToOuterConstructs) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %func "func"
|
|
OpExecutionMode %func OriginUpperLeft
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%true = OpConstantTrue %bool
|
|
%int = OpTypeInt 32 0
|
|
%int0 = OpConstant %int 0
|
|
%func_ty = OpTypeFunction %void
|
|
%func = OpFunction %void None %func_ty
|
|
%1 = OpLabel
|
|
OpBranch %2
|
|
%2 = OpLabel
|
|
OpLoopMerge %7 %6 None
|
|
OpBranch %3
|
|
%3 = OpLabel
|
|
OpSelectionMerge %5 None
|
|
OpSwitch %int0 %5 0 %4
|
|
%4 = OpLabel
|
|
OpBranchConditional %true %6 %7
|
|
%5 = OpLabel
|
|
OpBranchConditional %true %6 %7
|
|
%6 = OpLabel
|
|
OpBranch %2
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, GoodUnreachableSelection) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main"
|
|
OpExecutionMode %main OriginUpperLeft
|
|
%void = OpTypeVoid
|
|
%8 = OpTypeFunction %void
|
|
%bool = OpTypeBool
|
|
%false = OpConstantFalse %bool
|
|
%main = OpFunction %void None %8
|
|
%15 = OpLabel
|
|
OpBranch %16
|
|
%16 = OpLabel
|
|
OpLoopMerge %17 %18 None
|
|
OpBranch %19
|
|
%19 = OpLabel
|
|
OpBranchConditional %false %21 %17
|
|
%21 = OpLabel
|
|
OpSelectionMerge %22 None
|
|
OpBranchConditional %false %23 %22
|
|
%23 = OpLabel
|
|
OpBranch %24
|
|
%24 = OpLabel
|
|
OpLoopMerge %25 %26 None
|
|
OpBranch %27
|
|
%27 = OpLabel
|
|
OpReturn
|
|
%26 = OpLabel
|
|
OpBranchConditional %false %24 %25
|
|
%25 = OpLabel
|
|
OpSelectionMerge %28 None
|
|
OpBranchConditional %false %18 %28
|
|
%28 = OpLabel
|
|
OpBranch %22
|
|
%22 = OpLabel
|
|
OpBranch %18
|
|
%18 = OpLabel
|
|
OpBranch %16
|
|
%17 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, ShaderWithPhiPtr) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint GLCompute %1 "main"
|
|
OpExecutionMode %1 LocalSize 1 1 1
|
|
OpSource HLSL 600
|
|
%bool = OpTypeBool
|
|
%_ptr_Function_bool = OpTypePointer Function %bool
|
|
%void = OpTypeVoid
|
|
%5 = OpTypeFunction %void
|
|
%1 = OpFunction %void None %5
|
|
%6 = OpLabel
|
|
%7 = OpVariable %_ptr_Function_bool Function
|
|
%8 = OpVariable %_ptr_Function_bool Function
|
|
%9 = OpUndef %bool
|
|
OpSelectionMerge %10 None
|
|
OpBranchConditional %9 %11 %10
|
|
%11 = OpLabel
|
|
OpBranch %10
|
|
%10 = OpLabel
|
|
%12 = OpPhi %_ptr_Function_bool %7 %6 %8 %11
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_DATA, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("Using pointers with OpPhi requires capability "
|
|
"VariablePointers or VariablePointersStorageBuffer"));
|
|
}
|
|
|
|
TEST_F(ValidateCFG, VarPtrShaderWithPhiPtr) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability VariablePointers
|
|
OpExtension "SPV_KHR_variable_pointers"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint GLCompute %1 "main"
|
|
OpExecutionMode %1 LocalSize 1 1 1
|
|
OpSource HLSL 600
|
|
%bool = OpTypeBool
|
|
%_ptr_Function_bool = OpTypePointer Function %bool
|
|
%void = OpTypeVoid
|
|
%5 = OpTypeFunction %void
|
|
%1 = OpFunction %void None %5
|
|
%6 = OpLabel
|
|
%7 = OpVariable %_ptr_Function_bool Function
|
|
%8 = OpVariable %_ptr_Function_bool Function
|
|
%9 = OpUndef %bool
|
|
OpSelectionMerge %10 None
|
|
OpBranchConditional %9 %11 %10
|
|
%11 = OpLabel
|
|
OpBranch %10
|
|
%10 = OpLabel
|
|
%12 = OpPhi %_ptr_Function_bool %7 %6 %8 %11
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, VarPtrStgBufShaderWithPhiStgBufPtr) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability VariablePointersStorageBuffer
|
|
OpExtension "SPV_KHR_variable_pointers"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint GLCompute %1 "main"
|
|
OpExecutionMode %1 LocalSize 1 1 1
|
|
OpSource HLSL 600
|
|
%bool = OpTypeBool
|
|
%float = OpTypeFloat 32
|
|
%_ptr_StorageBuffer_float = OpTypePointer StorageBuffer %float
|
|
%7 = OpVariable %_ptr_StorageBuffer_float StorageBuffer
|
|
%8 = OpVariable %_ptr_StorageBuffer_float StorageBuffer
|
|
%void = OpTypeVoid
|
|
%5 = OpTypeFunction %void
|
|
%1 = OpFunction %void None %5
|
|
%6 = OpLabel
|
|
%9 = OpUndef %bool
|
|
OpSelectionMerge %10 None
|
|
OpBranchConditional %9 %11 %10
|
|
%11 = OpLabel
|
|
OpBranch %10
|
|
%10 = OpLabel
|
|
%12 = OpPhi %_ptr_StorageBuffer_float %7 %6 %8 %11
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
TEST_F(ValidateCFG, KernelWithPhiPtr) {
|
|
const std::string text = R"(
|
|
OpCapability Kernel
|
|
OpCapability Addresses
|
|
OpMemoryModel Physical32 OpenCL
|
|
OpEntryPoint Kernel %1 "main"
|
|
OpExecutionMode %1 LocalSize 1 1 1
|
|
OpSource HLSL 600
|
|
%bool = OpTypeBool
|
|
%_ptr_Function_bool = OpTypePointer Function %bool
|
|
%void = OpTypeVoid
|
|
%5 = OpTypeFunction %void
|
|
%1 = OpFunction %void None %5
|
|
%6 = OpLabel
|
|
%7 = OpVariable %_ptr_Function_bool Function
|
|
%8 = OpVariable %_ptr_Function_bool Function
|
|
%9 = OpUndef %bool
|
|
OpSelectionMerge %10 None
|
|
OpBranchConditional %9 %11 %10
|
|
%11 = OpLabel
|
|
OpBranch %10
|
|
%10 = OpLabel
|
|
%12 = OpPhi %_ptr_Function_bool %7 %6 %8 %11
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(text);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
/// TODO(umar): Nested CFG constructs
|
|
|
|
} // namespace
|
|
} // namespace val
|
|
} // namespace spvtools
|