mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-12-26 01:31:06 +00:00
7e7745fce8
Fixes #2559 * Validate OpLoopMerge including loop controls * add tests * fix some bad tests
779 lines
23 KiB
C++
779 lines
23 KiB
C++
// Copyright (c) 2016 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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// Validation tests for Universal Limits. (Section 2.17 of the SPIR-V Spec)
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#include <sstream>
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#include <string>
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#include <utility>
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#include "gmock/gmock.h"
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#include "test/unit_spirv.h"
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#include "test/val/val_fixtures.h"
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namespace spvtools {
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namespace val {
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namespace {
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using ::testing::HasSubstr;
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using ::testing::MatchesRegex;
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using ValidateLimits = spvtest::ValidateBase<bool>;
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std::string header = R"(
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OpCapability Shader
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OpCapability Linkage
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OpMemoryModel Logical GLSL450
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)";
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TEST_F(ValidateLimits, IdLargerThanBoundBad) {
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std::string str = header + R"(
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; %i32 has ID 1
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%i32 = OpTypeInt 32 1
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%c = OpConstant %i32 100
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; Fake an instruction with 64 as the result id.
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; !64 = OpConstantNull %i32
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!0x3002e !1 !64
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)";
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CompileSuccessfully(str);
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ASSERT_EQ(SPV_ERROR_INVALID_BINARY, ValidateInstructions());
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EXPECT_THAT(
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getDiagnosticString(),
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HasSubstr("Result <id> '64' must be less than the ID bound '3'."));
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}
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TEST_F(ValidateLimits, IdEqualToBoundBad) {
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std::string str = header + R"(
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; %i32 has ID 1
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%i32 = OpTypeInt 32 1
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%c = OpConstant %i32 100
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; Fake an instruction with 64 as the result id.
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; !64 = OpConstantNull %i32
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!0x3002e !1 !64
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)";
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CompileSuccessfully(str);
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// The largest ID used in this program is 64. Let's overwrite the ID bound in
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// the header to be 64. This should result in an error because all IDs must
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// satisfy: 0 < id < bound.
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OverwriteAssembledBinary(3, 64);
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ASSERT_EQ(SPV_ERROR_INVALID_BINARY, ValidateInstructions());
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EXPECT_THAT(
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getDiagnosticString(),
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HasSubstr("Result <id> '64' must be less than the ID bound '64'."));
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}
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TEST_F(ValidateLimits, IdBoundTooBigDeaultLimit) {
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std::string str = header;
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CompileSuccessfully(str);
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// The largest ID used in this program is 64. Let's overwrite the ID bound in
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// the header to be 64. This should result in an error because all IDs must
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// satisfy: 0 < id < bound.
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OverwriteAssembledBinary(3, 0x4FFFFF);
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ASSERT_EQ(SPV_ERROR_INVALID_BINARY, ValidateInstructions());
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EXPECT_THAT(getDiagnosticString(),
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HasSubstr("Invalid SPIR-V. The id bound is larger than the max "
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"id bound 4194303."));
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}
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TEST_F(ValidateLimits, IdBoundAtSetLimit) {
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std::string str = header;
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CompileSuccessfully(str);
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// The largest ID used in this program is 64. Let's overwrite the ID bound in
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// the header to be 64. This should result in an error because all IDs must
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// satisfy: 0 < id < bound.
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uint32_t id_bound = 0x4FFFFF;
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OverwriteAssembledBinary(3, id_bound);
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getValidatorOptions()->universal_limits_.max_id_bound = id_bound;
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ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
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}
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TEST_F(ValidateLimits, IdBoundJustAboveSetLimit) {
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std::string str = header;
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CompileSuccessfully(str);
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// The largest ID used in this program is 64. Let's overwrite the ID bound in
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// the header to be 64. This should result in an error because all IDs must
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// satisfy: 0 < id < bound.
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uint32_t id_bound = 5242878;
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OverwriteAssembledBinary(3, id_bound);
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getValidatorOptions()->universal_limits_.max_id_bound = id_bound - 1;
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ASSERT_EQ(SPV_ERROR_INVALID_BINARY, ValidateInstructions());
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EXPECT_THAT(getDiagnosticString(),
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HasSubstr("Invalid SPIR-V. The id bound is larger than the max "
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"id bound 5242877."));
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}
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TEST_F(ValidateLimits, IdBoundAtInMaxLimit) {
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std::string str = header;
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CompileSuccessfully(str);
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uint32_t id_bound = std::numeric_limits<uint32_t>::max();
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OverwriteAssembledBinary(3, id_bound);
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getValidatorOptions()->universal_limits_.max_id_bound = id_bound;
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ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
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}
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TEST_F(ValidateLimits, StructNumMembersGood) {
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std::ostringstream spirv;
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spirv << header << R"(
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%1 = OpTypeInt 32 0
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%2 = OpTypeStruct)";
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for (int i = 0; i < 16383; ++i) {
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spirv << " %1";
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}
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CompileSuccessfully(spirv.str());
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ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
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}
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TEST_F(ValidateLimits, StructNumMembersExceededBad) {
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std::ostringstream spirv;
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spirv << header << R"(
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%1 = OpTypeInt 32 0
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%2 = OpTypeStruct)";
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for (int i = 0; i < 16384; ++i) {
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spirv << " %1";
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}
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CompileSuccessfully(spirv.str());
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ASSERT_EQ(SPV_ERROR_INVALID_BINARY, ValidateInstructions());
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EXPECT_THAT(getDiagnosticString(),
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HasSubstr("Number of OpTypeStruct members (16384) has exceeded "
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"the limit (16383)."));
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}
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TEST_F(ValidateLimits, CustomizedStructNumMembersGood) {
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std::ostringstream spirv;
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spirv << header << R"(
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%1 = OpTypeInt 32 0
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%2 = OpTypeStruct)";
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for (int i = 0; i < 32000; ++i) {
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spirv << " %1";
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}
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spvValidatorOptionsSetUniversalLimit(
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options_, spv_validator_limit_max_struct_members, 32000u);
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CompileSuccessfully(spirv.str());
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ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
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}
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TEST_F(ValidateLimits, CustomizedStructNumMembersBad) {
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std::ostringstream spirv;
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spirv << header << R"(
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%1 = OpTypeInt 32 0
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%2 = OpTypeStruct)";
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for (int i = 0; i < 32001; ++i) {
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spirv << " %1";
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}
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spvValidatorOptionsSetUniversalLimit(
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options_, spv_validator_limit_max_struct_members, 32000u);
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CompileSuccessfully(spirv.str());
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ASSERT_EQ(SPV_ERROR_INVALID_BINARY, ValidateInstructions());
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EXPECT_THAT(getDiagnosticString(),
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HasSubstr("Number of OpTypeStruct members (32001) has exceeded "
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"the limit (32000)."));
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}
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// Valid: Switch statement has 16,383 branches.
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TEST_F(ValidateLimits, SwitchNumBranchesGood) {
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std::ostringstream spirv;
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spirv << header << R"(
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%1 = OpTypeVoid
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%2 = OpTypeFunction %1
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%3 = OpTypeInt 32 0
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%4 = OpConstant %3 1234
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%5 = OpFunction %1 None %2
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%7 = OpLabel
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%8 = OpIAdd %3 %4 %4
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%9 = OpSwitch %4 %10)";
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// Now add the (literal, label) pairs
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for (int i = 0; i < 16383; ++i) {
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spirv << " 1 %10";
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}
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spirv << R"(
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%10 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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CompileSuccessfully(spirv.str());
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ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
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}
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// Invalid: Switch statement has 16,384 branches.
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TEST_F(ValidateLimits, SwitchNumBranchesBad) {
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std::ostringstream spirv;
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spirv << header << R"(
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%1 = OpTypeVoid
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%2 = OpTypeFunction %1
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%3 = OpTypeInt 32 0
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%4 = OpConstant %3 1234
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%5 = OpFunction %1 None %2
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%7 = OpLabel
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%8 = OpIAdd %3 %4 %4
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%9 = OpSwitch %4 %10)";
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// Now add the (literal, label) pairs
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for (int i = 0; i < 16384; ++i) {
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spirv << " 1 %10";
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}
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spirv << R"(
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%10 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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CompileSuccessfully(spirv.str());
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ASSERT_EQ(SPV_ERROR_INVALID_BINARY, ValidateInstructions());
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EXPECT_THAT(getDiagnosticString(),
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HasSubstr("Number of (literal, label) pairs in OpSwitch (16384) "
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"exceeds the limit (16383)."));
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}
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// Valid: Switch statement has 10 branches (limit is 10)
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TEST_F(ValidateLimits, CustomizedSwitchNumBranchesGood) {
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std::ostringstream spirv;
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spirv << header << R"(
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%1 = OpTypeVoid
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%2 = OpTypeFunction %1
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%3 = OpTypeInt 32 0
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%4 = OpConstant %3 1234
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%5 = OpFunction %1 None %2
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%7 = OpLabel
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%8 = OpIAdd %3 %4 %4
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%9 = OpSwitch %4 %10)";
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// Now add the (literal, label) pairs
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for (int i = 0; i < 10; ++i) {
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spirv << " 1 %10";
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}
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spirv << R"(
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%10 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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spvValidatorOptionsSetUniversalLimit(
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options_, spv_validator_limit_max_switch_branches, 10u);
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CompileSuccessfully(spirv.str());
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ASSERT_EQ(SPV_SUCCESS, ValidateInstructions());
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}
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// Invalid: Switch statement has 11 branches (limit is 10)
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TEST_F(ValidateLimits, CustomizedSwitchNumBranchesBad) {
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std::ostringstream spirv;
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spirv << header << R"(
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%1 = OpTypeVoid
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%2 = OpTypeFunction %1
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%3 = OpTypeInt 32 0
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%4 = OpConstant %3 1234
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%5 = OpFunction %1 None %2
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%7 = OpLabel
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%8 = OpIAdd %3 %4 %4
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%9 = OpSwitch %4 %10)";
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// Now add the (literal, label) pairs
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for (int i = 0; i < 11; ++i) {
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spirv << " 1 %10";
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}
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spirv << R"(
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%10 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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spvValidatorOptionsSetUniversalLimit(
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options_, spv_validator_limit_max_switch_branches, 10u);
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CompileSuccessfully(spirv.str());
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ASSERT_EQ(SPV_ERROR_INVALID_BINARY, ValidateInstructions());
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EXPECT_THAT(getDiagnosticString(),
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HasSubstr("Number of (literal, label) pairs in OpSwitch (11) "
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"exceeds the limit (10)."));
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}
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// Valid: OpTypeFunction with 255 arguments.
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TEST_F(ValidateLimits, OpTypeFunctionGood) {
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int num_args = 255;
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std::ostringstream spirv;
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spirv << header << R"(
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%1 = OpTypeInt 32 0
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%2 = OpTypeFunction %1)";
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// add parameters
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for (int i = 0; i < num_args; ++i) {
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spirv << " %1";
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}
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CompileSuccessfully(spirv.str());
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EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
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}
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// Invalid: OpTypeFunction with 256 arguments. (limit is 255 according to the
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// spec Universal Limits (2.17).
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TEST_F(ValidateLimits, OpTypeFunctionBad) {
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int num_args = 256;
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std::ostringstream spirv;
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spirv << header << R"(
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%1 = OpTypeInt 32 0
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%2 = OpTypeFunction %1)";
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for (int i = 0; i < num_args; ++i) {
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spirv << " %1";
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}
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CompileSuccessfully(spirv.str());
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EXPECT_EQ(SPV_ERROR_INVALID_ID, ValidateInstructions());
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EXPECT_THAT(getDiagnosticString(),
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HasSubstr("OpTypeFunction may not take more than 255 arguments. "
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"OpTypeFunction <id> '2[%2]' has 256 arguments."));
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}
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// Valid: OpTypeFunction with 100 arguments (Custom limit: 100)
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TEST_F(ValidateLimits, CustomizedOpTypeFunctionGood) {
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int num_args = 100;
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std::ostringstream spirv;
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spirv << header << R"(
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%1 = OpTypeInt 32 0
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%2 = OpTypeFunction %1)";
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// add parameters
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for (int i = 0; i < num_args; ++i) {
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spirv << " %1";
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}
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spvValidatorOptionsSetUniversalLimit(
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options_, spv_validator_limit_max_function_args, 100u);
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CompileSuccessfully(spirv.str());
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EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
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}
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// Invalid: OpTypeFunction with 101 arguments. (Custom limit: 100)
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TEST_F(ValidateLimits, CustomizedOpTypeFunctionBad) {
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int num_args = 101;
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std::ostringstream spirv;
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spirv << header << R"(
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%1 = OpTypeInt 32 0
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%2 = OpTypeFunction %1)";
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for (int i = 0; i < num_args; ++i) {
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spirv << " %1";
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}
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spvValidatorOptionsSetUniversalLimit(
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options_, spv_validator_limit_max_function_args, 100u);
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CompileSuccessfully(spirv.str());
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EXPECT_EQ(SPV_ERROR_INVALID_ID, ValidateInstructions());
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EXPECT_THAT(getDiagnosticString(),
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HasSubstr("OpTypeFunction may not take more than 100 arguments. "
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"OpTypeFunction <id> '2[%2]' has 101 arguments."));
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}
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// Valid: module has 65,535 global variables.
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TEST_F(ValidateLimits, NumGlobalVarsGood) {
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int num_globals = 65535;
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std::ostringstream spirv;
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spirv << header << R"(
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%int = OpTypeInt 32 0
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%_ptr_int = OpTypePointer Input %int
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)";
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for (int i = 0; i < num_globals; ++i) {
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spirv << "%var_" << i << " = OpVariable %_ptr_int Input\n";
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}
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CompileSuccessfully(spirv.str());
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EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
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}
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// Invalid: module has 65,536 global variables (limit is 65,535).
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TEST_F(ValidateLimits, NumGlobalVarsBad) {
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int num_globals = 65536;
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std::ostringstream spirv;
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spirv << header << R"(
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%int = OpTypeInt 32 0
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%_ptr_int = OpTypePointer Input %int
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)";
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for (int i = 0; i < num_globals; ++i) {
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spirv << "%var_" << i << " = OpVariable %_ptr_int Input\n";
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}
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CompileSuccessfully(spirv.str());
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EXPECT_EQ(SPV_ERROR_INVALID_BINARY, ValidateInstructions());
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EXPECT_THAT(getDiagnosticString(),
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HasSubstr("Number of Global Variables (Storage Class other than "
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"'Function') exceeded the valid limit (65535)."));
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}
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// Valid: module has 50 global variables (limit is 50)
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TEST_F(ValidateLimits, CustomizedNumGlobalVarsGood) {
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int num_globals = 50;
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std::ostringstream spirv;
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spirv << header << R"(
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%int = OpTypeInt 32 0
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%_ptr_int = OpTypePointer Input %int
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)";
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for (int i = 0; i < num_globals; ++i) {
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spirv << "%var_" << i << " = OpVariable %_ptr_int Input\n";
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}
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spvValidatorOptionsSetUniversalLimit(
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options_, spv_validator_limit_max_global_variables, 50u);
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CompileSuccessfully(spirv.str());
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EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
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}
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// Invalid: module has 51 global variables (limit is 50).
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TEST_F(ValidateLimits, CustomizedNumGlobalVarsBad) {
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int num_globals = 51;
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std::ostringstream spirv;
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spirv << header << R"(
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%int = OpTypeInt 32 0
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%_ptr_int = OpTypePointer Input %int
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)";
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for (int i = 0; i < num_globals; ++i) {
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spirv << "%var_" << i << " = OpVariable %_ptr_int Input\n";
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}
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spvValidatorOptionsSetUniversalLimit(
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options_, spv_validator_limit_max_global_variables, 50u);
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CompileSuccessfully(spirv.str());
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EXPECT_EQ(SPV_ERROR_INVALID_BINARY, ValidateInstructions());
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EXPECT_THAT(getDiagnosticString(),
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HasSubstr("Number of Global Variables (Storage Class other than "
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"'Function') exceeded the valid limit (50)."));
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}
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// Valid: module has 524,287 local variables.
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// Note: AppVeyor limits process time to 300s. For a VisualStudio Debug
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// build, going up to 524287 local variables gets too close to that
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// limit. So test with an artificially lowered limit.
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TEST_F(ValidateLimits, NumLocalVarsGoodArtificiallyLowLimit5K) {
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int num_locals = 5000;
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std::ostringstream spirv;
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spirv << header << R"(
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%int = OpTypeInt 32 0
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%_ptr_int = OpTypePointer Function %int
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%voidt = OpTypeVoid
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%funct = OpTypeFunction %voidt
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%main = OpFunction %voidt None %funct
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%entry = OpLabel
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)";
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for (int i = 0; i < num_locals; ++i) {
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spirv << "%var_" << i << " = OpVariable %_ptr_int Function\n";
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}
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spirv << R"(
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OpReturn
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OpFunctionEnd
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)";
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CompileSuccessfully(spirv.str());
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// Artificially limit it.
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spvValidatorOptionsSetUniversalLimit(
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options_, spv_validator_limit_max_local_variables, num_locals);
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EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
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}
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// Invalid: module has 524,288 local variables (limit is 524,287).
|
|
// Artificially limit the check to 5001.
|
|
TEST_F(ValidateLimits, NumLocalVarsBadArtificiallyLowLimit5K) {
|
|
int num_locals = 5001;
|
|
std::ostringstream spirv;
|
|
spirv << header << R"(
|
|
%int = OpTypeInt 32 0
|
|
%_ptr_int = OpTypePointer Function %int
|
|
%voidt = OpTypeVoid
|
|
%funct = OpTypeFunction %voidt
|
|
%main = OpFunction %voidt None %funct
|
|
%entry = OpLabel
|
|
)";
|
|
|
|
for (int i = 0; i < num_locals; ++i) {
|
|
spirv << "%var_" << i << " = OpVariable %_ptr_int Function\n";
|
|
}
|
|
|
|
spirv << R"(
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
CompileSuccessfully(spirv.str());
|
|
spvValidatorOptionsSetUniversalLimit(
|
|
options_, spv_validator_limit_max_local_variables, 5000u);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_BINARY, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("Number of local variables ('Function' Storage Class) "
|
|
"exceeded the valid limit (5000)."));
|
|
}
|
|
|
|
// Valid: module has 100 local variables (limit is 100).
|
|
TEST_F(ValidateLimits, CustomizedNumLocalVarsGood) {
|
|
int num_locals = 100;
|
|
std::ostringstream spirv;
|
|
spirv << header << R"(
|
|
%int = OpTypeInt 32 0
|
|
%_ptr_int = OpTypePointer Function %int
|
|
%voidt = OpTypeVoid
|
|
%funct = OpTypeFunction %voidt
|
|
%main = OpFunction %voidt None %funct
|
|
%entry = OpLabel
|
|
)";
|
|
|
|
for (int i = 0; i < num_locals; ++i) {
|
|
spirv << "%var_" << i << " = OpVariable %_ptr_int Function\n";
|
|
}
|
|
|
|
spirv << R"(
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
spvValidatorOptionsSetUniversalLimit(
|
|
options_, spv_validator_limit_max_local_variables, 100u);
|
|
CompileSuccessfully(spirv.str());
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
// Invalid: module has 101 local variables (limit is 100).
|
|
TEST_F(ValidateLimits, CustomizedNumLocalVarsBad) {
|
|
int num_locals = 101;
|
|
std::ostringstream spirv;
|
|
spirv << header << R"(
|
|
%int = OpTypeInt 32 0
|
|
%_ptr_int = OpTypePointer Function %int
|
|
%voidt = OpTypeVoid
|
|
%funct = OpTypeFunction %voidt
|
|
%main = OpFunction %voidt None %funct
|
|
%entry = OpLabel
|
|
)";
|
|
|
|
for (int i = 0; i < num_locals; ++i) {
|
|
spirv << "%var_" << i << " = OpVariable %_ptr_int Function\n";
|
|
}
|
|
|
|
spirv << R"(
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
spvValidatorOptionsSetUniversalLimit(
|
|
options_, spv_validator_limit_max_local_variables, 100u);
|
|
CompileSuccessfully(spirv.str());
|
|
EXPECT_EQ(SPV_ERROR_INVALID_BINARY, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("Number of local variables ('Function' Storage Class) "
|
|
"exceeded the valid limit (100)."));
|
|
}
|
|
|
|
// Valid: Structure nesting depth of 255.
|
|
TEST_F(ValidateLimits, StructNestingDepthGood) {
|
|
std::ostringstream spirv;
|
|
spirv << header << R"(
|
|
%int = OpTypeInt 32 0
|
|
%s_depth_1 = OpTypeStruct %int
|
|
)";
|
|
for (auto i = 2; i <= 255; ++i) {
|
|
spirv << "%s_depth_" << i << " = OpTypeStruct %int %s_depth_" << i - 1;
|
|
spirv << "\n";
|
|
}
|
|
CompileSuccessfully(spirv.str());
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
// Invalid: Structure nesting depth of 256.
|
|
TEST_F(ValidateLimits, StructNestingDepthBad) {
|
|
std::ostringstream spirv;
|
|
spirv << header << R"(
|
|
%int = OpTypeInt 32 0
|
|
%s_depth_1 = OpTypeStruct %int
|
|
)";
|
|
for (auto i = 2; i <= 256; ++i) {
|
|
spirv << "%s_depth_" << i << " = OpTypeStruct %int %s_depth_" << i - 1;
|
|
spirv << "\n";
|
|
}
|
|
CompileSuccessfully(spirv.str());
|
|
EXPECT_EQ(SPV_ERROR_INVALID_BINARY, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr(
|
|
"Structure Nesting Depth may not be larger than 255. Found 256."));
|
|
}
|
|
|
|
// Valid: Structure nesting depth of 100 (limit is 100).
|
|
TEST_F(ValidateLimits, CustomizedStructNestingDepthGood) {
|
|
std::ostringstream spirv;
|
|
spirv << header << R"(
|
|
%int = OpTypeInt 32 0
|
|
%s_depth_1 = OpTypeStruct %int
|
|
)";
|
|
for (auto i = 2; i <= 100; ++i) {
|
|
spirv << "%s_depth_" << i << " = OpTypeStruct %int %s_depth_" << i - 1;
|
|
spirv << "\n";
|
|
}
|
|
spvValidatorOptionsSetUniversalLimit(
|
|
options_, spv_validator_limit_max_struct_depth, 100u);
|
|
CompileSuccessfully(spirv.str());
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
// Invalid: Structure nesting depth of 101 (limit is 100).
|
|
TEST_F(ValidateLimits, CustomizedStructNestingDepthBad) {
|
|
std::ostringstream spirv;
|
|
spirv << header << R"(
|
|
%int = OpTypeInt 32 0
|
|
%s_depth_1 = OpTypeStruct %int
|
|
)";
|
|
for (auto i = 2; i <= 101; ++i) {
|
|
spirv << "%s_depth_" << i << " = OpTypeStruct %int %s_depth_" << i - 1;
|
|
spirv << "\n";
|
|
}
|
|
spvValidatorOptionsSetUniversalLimit(
|
|
options_, spv_validator_limit_max_struct_depth, 100u);
|
|
CompileSuccessfully(spirv.str());
|
|
EXPECT_EQ(SPV_ERROR_INVALID_BINARY, ValidateInstructions());
|
|
EXPECT_THAT(
|
|
getDiagnosticString(),
|
|
HasSubstr(
|
|
"Structure Nesting Depth may not be larger than 100. Found 101."));
|
|
}
|
|
|
|
// clang-format off
|
|
// Generates an SPIRV program with the given control flow nesting depth
|
|
void GenerateSpirvProgramWithCfgNestingDepth(std::string& str, int depth) {
|
|
std::ostringstream spirv;
|
|
spirv << header << R"(
|
|
%void = OpTypeVoid
|
|
%3 = OpTypeFunction %void
|
|
%bool = OpTypeBool
|
|
%12 = OpConstantTrue %bool
|
|
%main = OpFunction %void None %3
|
|
%5 = OpLabel
|
|
OpBranch %6
|
|
%6 = OpLabel
|
|
OpLoopMerge %8 %9 None
|
|
OpBranch %10
|
|
%10 = OpLabel
|
|
OpBranchConditional %12 %7 %8
|
|
%7 = OpLabel
|
|
)";
|
|
int first_id = 13;
|
|
int last_id = 14;
|
|
// We already have 1 level of nesting due to the Loop.
|
|
int num_if_conditions = depth-1;
|
|
int largest_index = first_id + 2*num_if_conditions - 2;
|
|
for (int i = first_id; i <= largest_index; i = i + 2) {
|
|
spirv << "OpSelectionMerge %" << i+1 << " None" << "\n";
|
|
spirv << "OpBranchConditional %12 " << "%" << i << " %" << i+1 << "\n";
|
|
spirv << "%" << i << " = OpLabel" << "\n";
|
|
}
|
|
spirv << "OpBranch %9" << "\n";
|
|
|
|
for (int i = largest_index+1; i > last_id; i = i - 2) {
|
|
spirv << "%" << i << " = OpLabel" << "\n";
|
|
spirv << "OpBranch %" << i-2 << "\n";
|
|
}
|
|
spirv << "%" << last_id << " = OpLabel" << "\n";
|
|
spirv << "OpBranch %9" << "\n";
|
|
spirv << R"(
|
|
%9 = OpLabel
|
|
OpBranch %6
|
|
%8 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
str = spirv.str();
|
|
}
|
|
// clang-format on
|
|
|
|
// Invalid: Control Flow Nesting depth is 1024. (limit is 1023).
|
|
TEST_F(ValidateLimits, ControlFlowDepthBad) {
|
|
std::string spirv;
|
|
GenerateSpirvProgramWithCfgNestingDepth(spirv, 1024);
|
|
CompileSuccessfully(spirv);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("Maximum Control Flow nesting depth exceeded."));
|
|
}
|
|
|
|
// Valid: Control Flow Nesting depth is 10 (custom limit: 10).
|
|
TEST_F(ValidateLimits, CustomizedControlFlowDepthGood) {
|
|
std::string spirv;
|
|
GenerateSpirvProgramWithCfgNestingDepth(spirv, 10);
|
|
spvValidatorOptionsSetUniversalLimit(
|
|
options_, spv_validator_limit_max_control_flow_nesting_depth, 10u);
|
|
CompileSuccessfully(spirv);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
// Invalid: Control Flow Nesting depth is 11. (custom limit: 10).
|
|
TEST_F(ValidateLimits, CustomizedControlFlowDepthBad) {
|
|
std::string spirv;
|
|
GenerateSpirvProgramWithCfgNestingDepth(spirv, 11);
|
|
spvValidatorOptionsSetUniversalLimit(
|
|
options_, spv_validator_limit_max_control_flow_nesting_depth, 10u);
|
|
CompileSuccessfully(spirv);
|
|
EXPECT_EQ(SPV_ERROR_INVALID_CFG, ValidateInstructions());
|
|
EXPECT_THAT(getDiagnosticString(),
|
|
HasSubstr("Maximum Control Flow nesting depth exceeded."));
|
|
}
|
|
|
|
// Valid. The purpose here is to test the CFG depth calculation code when a loop
|
|
// continue target is the loop iteself. It also exercises the case where a loop
|
|
// is unreachable.
|
|
TEST_F(ValidateLimits, ControlFlowNoEntryToLoopGood) {
|
|
std::string str = header + R"(
|
|
OpName %entry "entry"
|
|
OpName %loop "loop"
|
|
OpName %exit "exit"
|
|
%voidt = OpTypeVoid
|
|
%boolt = OpTypeBool
|
|
%undef = OpUndef %boolt
|
|
%funct = OpTypeFunction %voidt
|
|
%main = OpFunction %voidt None %funct
|
|
%entry = OpLabel
|
|
OpBranch %exit
|
|
%loop = OpLabel
|
|
OpLoopMerge %dead %loop None
|
|
OpBranchConditional %undef %loop %loop
|
|
%dead = OpLabel
|
|
OpUnreachable
|
|
%exit = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
CompileSuccessfully(str);
|
|
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions());
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace val
|
|
} // namespace spvtools
|