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Operand lookup succeeds if it's enabled by a capability

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- Fix tests for basic group operations (e.g. Reduce) to allow for
new capabilities in SPIR-V 1.3 that enable them.
- Refactor operand capability check to avoid code duplication and
to put all checks that don't need table lookup before any table
lookup.
- Test round trip assembly/disassembly support for extension
SPV_NV_viewport_array2
- Test assembly and validation of decoration ViewportRelativeNV

Fixes #1596
This commit is contained in:
David Neto 2018-06-05 23:07:51 -07:00
parent 06de86863b
commit 363bfca2ed
6 changed files with 147 additions and 50 deletions
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14
source/operand.cpp
View File

@ -55,16 +55,17 @@ spv_result_t spvOperandTableNameLookup(spv_target_env env,
if (type != group.type) continue;
for (uint64_t index = 0; index < group.count; ++index) {
const auto& entry = group.entries[index];
// We considers the current operand as available as long as
// We consider the current operand as available as long as
// 1. The target environment satisfies the minimal requirement of the
// operand; or
// 2. There is at least one extension enabling this operand.
// 2. There is at least one extension enabling this operand; or
// 3. There is at least one capability enabling this operand.
//
// Note that the second rule assumes the extension enabling this operand
// is indeed requested in the SPIR-V code; checking that should be
// validator's work.
if ((spvVersionForTargetEnv(env) >= entry.minVersion ||
entry.numExtensions > 0u) &&
entry.numExtensions > 0u || entry.numCapabilities > 0u) &&
nameLength == strlen(entry.name) &&
!strncmp(entry.name, name, nameLength)) {
*pEntry = &entry;
@ -109,16 +110,17 @@ spv_result_t spvOperandTableValueLookup(spv_target_env env,
// opcode value.
for (auto it = std::lower_bound(beg, end, needle, comp);
it != end && it->value == value; ++it) {
// We considers the current operand as available as long as
// We consider the current operand as available as long as
// 1. The target environment satisfies the minimal requirement of the
// operand; or
// 2. There is at least one extension enabling this operand.
// 2. There is at least one extension enabling this operand; or
// 3. There is at least one capability enabling this operand.
//
// Note that the second rule assumes the extension enabling this operand
// is indeed requested in the SPIR-V code; checking that should be
// validator's work.
if (spvVersionForTargetEnv(env) >= it->minVersion ||
it->numExtensions > 0u) {
it->numExtensions > 0u || it->numCapabilities > 0u) {
*pEntry = it;
return SPV_SUCCESS;
}

73
source/validate_instruction.cpp
View File

@ -61,7 +61,7 @@ std::string ToString(const CapabilitySet& capabilities,
// Reports a missing-capability error to _'s diagnostic stream and returns
// SPV_ERROR_INVALID_CAPABILITY.
spv_result_t CapabilityError(ValidationState_t& _, int which_operand,
spv_result_t CapabilityError(const ValidationState_t& _, int which_operand,
SpvOp opcode,
const std::string& required_capabilities) {
return _.diag(SPV_ERROR_INVALID_CAPABILITY)
@ -101,9 +101,13 @@ CapabilitySet EnablingCapabilitiesForOp(const ValidationState_t& state,
return CapabilitySet();
}
// Returns an operand's required capabilities.
CapabilitySet RequiredCapabilities(const ValidationState_t& state,
spv_operand_type_t type, uint32_t operand) {
// Returns SPV_SUCCESS if the given operand is enabled by capabilities declared
// in the module. Otherwise issues an error message and returns
// SPV_ERROR_INVALID_CAPABILITY.
spv_result_t CheckRequiredCapabilities(const ValidationState_t& state,
SpvOp opcode, int which_operand,
spv_operand_type_t type,
uint32_t operand) {
// Mere mention of PointSize, ClipDistance, or CullDistance in a Builtin
// decoration does not require the associated capability. The use of such
// a variable value should trigger the capability requirement, but that's
@ -114,47 +118,51 @@ CapabilitySet RequiredCapabilities(const ValidationState_t& state,
case SpvBuiltInPointSize:
case SpvBuiltInClipDistance:
case SpvBuiltInCullDistance:
return CapabilitySet();
return SPV_SUCCESS;
default:
break;
}
} else if (type == SPV_OPERAND_TYPE_FP_ROUNDING_MODE) {
// Allow all FP rounding modes if requested
if (state.features().free_fp_rounding_mode) {
return CapabilitySet();
return SPV_SUCCESS;
}
} else if (type == SPV_OPERAND_TYPE_GROUP_OPERATION &&
state.features().group_ops_reduce_and_scans &&
(operand <= uint32_t(SpvGroupOperationExclusiveScan))) {
// Allow certain group operations if requested.
return SPV_SUCCESS;
}
spv_operand_desc operand_desc;
const auto ret = state.grammar().lookupOperand(type, operand, &operand_desc);
if (ret == SPV_SUCCESS) {
CapabilitySet enabling_capabilities;
spv_operand_desc operand_desc = nullptr;
const auto lookup_result =
state.grammar().lookupOperand(type, operand, &operand_desc);
if (lookup_result == SPV_SUCCESS) {
// Allow FPRoundingMode decoration if requested.
if (type == SPV_OPERAND_TYPE_DECORATION &&
operand_desc->value == SpvDecorationFPRoundingMode) {
if (state.features().free_fp_rounding_mode) return CapabilitySet();
if (state.features().free_fp_rounding_mode) return SPV_SUCCESS;
// Vulkan API requires more capabilities on rounding mode.
if (spvIsVulkanEnv(state.context()->target_env)) {
CapabilitySet cap_set;
cap_set.Add(SpvCapabilityStorageUniformBufferBlock16);
cap_set.Add(SpvCapabilityStorageUniform16);
cap_set.Add(SpvCapabilityStoragePushConstant16);
cap_set.Add(SpvCapabilityStorageInputOutput16);
return cap_set;
enabling_capabilities.Add(SpvCapabilityStorageUniformBufferBlock16);
enabling_capabilities.Add(SpvCapabilityStorageUniform16);
enabling_capabilities.Add(SpvCapabilityStoragePushConstant16);
enabling_capabilities.Add(SpvCapabilityStorageInputOutput16);
}
}
// Allow certain group operations if requested.
if (state.features().group_ops_reduce_and_scans &&
type == SPV_OPERAND_TYPE_GROUP_OPERATION &&
(operand <= uint32_t(SpvGroupOperationExclusiveScan))) {
return CapabilitySet();
} else {
enabling_capabilities = state.grammar().filterCapsAgainstTargetEnv(
operand_desc->capabilities, operand_desc->numCapabilities);
}
return state.grammar().filterCapsAgainstTargetEnv(
operand_desc->capabilities, operand_desc->numCapabilities);
if (!state.HasAnyOfCapabilities(enabling_capabilities)) {
return CapabilityError(state, which_operand, opcode,
ToString(enabling_capabilities, state.grammar()));
}
}
return CapabilitySet();
return SPV_SUCCESS;
}
// Returns operand's required extensions.
@ -196,11 +204,9 @@ spv_result_t CapabilityCheck(ValidationState_t& _,
// Check for required capabilities for each bit position of the mask.
for (uint32_t mask_bit = 0x80000000; mask_bit; mask_bit >>= 1) {
if (word & mask_bit) {
const auto caps = RequiredCapabilities(_, operand.type, mask_bit);
if (!_.HasAnyOfCapabilities(caps)) {
return CapabilityError(_, i + 1, opcode,
ToString(caps, _.grammar()));
}
spv_result_t status = CheckRequiredCapabilities(
_, opcode, i + 1, operand.type, mask_bit);
if (status != SPV_SUCCESS) return status;
}
}
} else if (spvIsIdType(operand.type)) {
@ -209,10 +215,9 @@ spv_result_t CapabilityCheck(ValidationState_t& _,
// https://github.com/KhronosGroup/SPIRV-Tools/issues/248
} else {
// Check the operand word as a whole.
const auto caps = RequiredCapabilities(_, operand.type, word);
if (!_.HasAnyOfCapabilities(caps)) {
return CapabilityError(_, i + 1, opcode, ToString(caps, _.grammar()));
}
spv_result_t status =
CheckRequiredCapabilities(_, opcode, i + 1, operand.type, word);
if (status != SPV_SUCCESS) return status;
}
}
return SPV_SUCCESS;

4
test/binary_parse_test.cpp
View File

@ -887,8 +887,8 @@ INSTANTIATE_TEST_CASE_P(
"component 32"},
{"%2 = OpFunction %2 !31",
"Invalid function control operand: 31 has invalid mask component 16"},
{"OpLoopMerge %1 %2 !7",
"Invalid loop control operand: 7 has invalid mask component 4"},
{"OpLoopMerge %1 %2 !1027",
"Invalid loop control operand: 1027 has invalid mask component 1024"},
{"%2 = OpImageFetch %1 %image %coord !511",
"Invalid image operand: 511 has invalid mask component 256"},
{"OpSelectionMerge %1 !7",

16
test/operand_capabilities_test.cpp
View File

@ -59,6 +59,7 @@ TEST_P(EnumCapabilityTest, Sample) {
EXPECT_THAT(ElementsIn(cap_set),
Eq(ElementsIn(get<1>(GetParam()).expected_capabilities)))
<< " capability value " << get<1>(GetParam()).value;
spvContextDestroy(context);
}
#define CASE0(TYPE, VALUE) \
@ -77,6 +78,12 @@ TEST_P(EnumCapabilityTest, Sample) {
SpvCapability##CAP1, SpvCapability##CAP2 \
} \
}
#define CASE3(TYPE, VALUE, CAP1, CAP2, CAP3) \
{ \
SPV_OPERAND_TYPE_##TYPE, uint32_t(Spv##VALUE), CapabilitySet { \
SpvCapability##CAP1, SpvCapability##CAP2, SpvCapability##CAP3 \
} \
}
#define CASE5(TYPE, VALUE, CAP1, CAP2, CAP3, CAP4, CAP5) \
{ \
SPV_OPERAND_TYPE_##TYPE, uint32_t(Spv##VALUE), CapabilitySet { \
@ -615,9 +622,12 @@ INSTANTIATE_TEST_CASE_P(
GroupOperation, EnumCapabilityTest,
Combine(Values(SPV_ENV_UNIVERSAL_1_0, SPV_ENV_UNIVERSAL_1_1),
ValuesIn(std::vector<EnumCapabilityCase>{
CASE1(GROUP_OPERATION, GroupOperationReduce, Kernel),
CASE1(GROUP_OPERATION, GroupOperationInclusiveScan, Kernel),
CASE1(GROUP_OPERATION, GroupOperationExclusiveScan, Kernel),
CASE3(GROUP_OPERATION, GroupOperationReduce, Kernel,
GroupNonUniformArithmetic, GroupNonUniformBallot),
CASE3(GROUP_OPERATION, GroupOperationInclusiveScan, Kernel,
GroupNonUniformArithmetic, GroupNonUniformBallot),
CASE3(GROUP_OPERATION, GroupOperationExclusiveScan, Kernel,
GroupNonUniformArithmetic, GroupNonUniformBallot),
})), );
// See SPIR-V Section 3.29 Kernel Enqueue Flags

38
test/text_to_binary.extension_test.cpp
View File

@ -145,19 +145,19 @@ INSTANTIATE_TEST_CASE_P(
MakeInstruction(SpvOpSubgroupBallotKHR, {1, 2, 3})},
{"%2 = OpSubgroupFirstInvocationKHR %1 %3\n",
MakeInstruction(SpvOpSubgroupFirstInvocationKHR, {1, 2, 3})},
{"OpDecorate %1 BuiltIn SubgroupEqMaskKHR\n",
{"OpDecorate %1 BuiltIn SubgroupEqMask\n",
MakeInstruction(SpvOpDecorate, {1, SpvDecorationBuiltIn,
SpvBuiltInSubgroupEqMaskKHR})},
{"OpDecorate %1 BuiltIn SubgroupGeMaskKHR\n",
{"OpDecorate %1 BuiltIn SubgroupGeMask\n",
MakeInstruction(SpvOpDecorate, {1, SpvDecorationBuiltIn,
SpvBuiltInSubgroupGeMaskKHR})},
{"OpDecorate %1 BuiltIn SubgroupGtMaskKHR\n",
{"OpDecorate %1 BuiltIn SubgroupGtMask\n",
MakeInstruction(SpvOpDecorate, {1, SpvDecorationBuiltIn,
SpvBuiltInSubgroupGtMaskKHR})},
{"OpDecorate %1 BuiltIn SubgroupLeMaskKHR\n",
{"OpDecorate %1 BuiltIn SubgroupLeMask\n",
MakeInstruction(SpvOpDecorate, {1, SpvDecorationBuiltIn,
SpvBuiltInSubgroupLeMaskKHR})},
{"OpDecorate %1 BuiltIn SubgroupLtMaskKHR\n",
{"OpDecorate %1 BuiltIn SubgroupLtMask\n",
MakeInstruction(SpvOpDecorate, {1, SpvDecorationBuiltIn,
SpvBuiltInSubgroupLtMaskKHR})},
})), );
@ -523,6 +523,34 @@ INSTANTIATE_TEST_CASE_P(
{1, SpvDecorationHlslCounterBufferGOOGLE, 2})},
})), );
// SPV_NV_viewport_array2
INSTANTIATE_TEST_CASE_P(
SPV_NV_viewport_array2, ExtensionRoundTripTest,
Combine(Values(SPV_ENV_UNIVERSAL_1_0, SPV_ENV_UNIVERSAL_1_1,
SPV_ENV_UNIVERSAL_1_2, SPV_ENV_UNIVERSAL_1_3,
SPV_ENV_VULKAN_1_0, SPV_ENV_VULKAN_1_1),
ValuesIn(std::vector<AssemblyCase>{
{"OpExtension \"SPV_NV_viewport_array2\"\n",
MakeInstruction(SpvOpExtension,
MakeVector("SPV_NV_viewport_array2"))},
// The EXT and NV extensions have the same token number for this
// capability.
{"OpCapability ShaderViewportIndexLayerEXT\n",
MakeInstruction(SpvOpCapability,
{SpvCapabilityShaderViewportIndexLayerNV})},
// Check the new capability's token number
{"OpCapability ShaderViewportIndexLayerEXT\n",
MakeInstruction(SpvOpCapability, {5254})},
// Decorations
{"OpDecorate %1 ViewportRelativeNV\n",
MakeInstruction(SpvOpDecorate,
{1, SpvDecorationViewportRelativeNV})},
{"OpDecorate %1 BuiltIn ViewportMaskNV\n",
MakeInstruction(SpvOpDecorate, {1, SpvDecorationBuiltIn,
SpvBuiltInViewportMaskNV})},
})), );
// SPV_NV_shader_subgroup_partitioned
INSTANTIATE_TEST_CASE_P(

52
test/val/val_capability_test.cpp
View File

@ -1965,4 +1965,56 @@ OpMemoryModel Physical64 OpenCL
"Embedded Profile"));
}
TEST_F(ValidateCapability, DecorationFromExtensionMissingEnabledByCapability) {
// Decoration ViewportRelativeNV is enabled by ShaderViewportMaskNV, which in
// turn is enabled by SPV_NV_viewport_array2.
const std::string spirv = R"(
OpCapability Shader
OpMemoryModel Logical Simple
OpDecorate %void ViewportRelativeNV
)" + string(kVoidFVoid);
CompileSuccessfully(spirv, SPV_ENV_UNIVERSAL_1_0);
EXPECT_EQ(SPV_ERROR_INVALID_CAPABILITY,
ValidateInstructions(SPV_ENV_UNIVERSAL_1_0));
EXPECT_THAT(getDiagnosticString(),
HasSubstr("Operand 2 of Decorate requires one of these "
"capabilities: ShaderViewportMaskNV"));
}
TEST_F(ValidateCapability, CapabilityEnabledByMissingExtension) {
// Capability ShaderViewportMaskNV is enabled by SPV_NV_viewport_array2.
const std::string spirv = R"(
OpCapability Shader
OpCapability ShaderViewportMaskNV
OpMemoryModel Logical Simple
)" + string(kVoidFVoid);
CompileSuccessfully(spirv, SPV_ENV_UNIVERSAL_1_0);
EXPECT_EQ(SPV_ERROR_MISSING_EXTENSION,
ValidateInstructions(SPV_ENV_UNIVERSAL_1_0));
EXPECT_THAT(getDiagnosticString(),
HasSubstr("operand 5255 requires one of these extensions: "
"SPV_NV_viewport_array2"));
}
TEST_F(ValidateCapability,
DecorationEnabledByCapabilityEnabledByPresentExtension) {
// Decoration ViewportRelativeNV is enabled by ShaderViewportMaskNV, which in
// turn is enabled by SPV_NV_viewport_array2.
const std::string spirv = R"(
OpCapability Shader
OpCapability Linkage
OpCapability ShaderViewportMaskNV
OpExtension "SPV_NV_viewport_array2"
OpMemoryModel Logical Simple
OpDecorate %void ViewportRelativeNV
%void = OpTypeVoid
)";
CompileSuccessfully(spirv, SPV_ENV_UNIVERSAL_1_0);
EXPECT_EQ(SPV_SUCCESS, ValidateInstructions(SPV_ENV_UNIVERSAL_1_0))
<< getDiagnosticString();
}
} // namespace