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https://github.com/KhronosGroup/SPIRV-Tools
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e64a4656b3
OpImageTexelPointer acts like a special kind of load. It is still safe to change the storage class of a variable used in a OpImageTexalPointer instruction. Contributes to #1445.
243 lines
8.9 KiB
C++
243 lines
8.9 KiB
C++
// Copyright (c) 2017 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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#include "opt/value_number_table.h"
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#include "assembly_builder.h"
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#include "gmock/gmock.h"
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#include "opt/build_module.h"
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#include "pass_fixture.h"
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#include "pass_utils.h"
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namespace {
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using namespace spvtools;
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using ::testing::HasSubstr;
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using ::testing::MatchesRegex;
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using PrivateToLocalTest = PassTest<::testing::Test>;
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#ifdef SPIRV_EFFCEE
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TEST_F(PrivateToLocalTest, ChangeToLocal) {
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// Change the private variable to a local, and change the types accordingly.
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const std::string text = R"(
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %2 "main"
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OpExecutionMode %2 OriginUpperLeft
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OpSource GLSL 430
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%3 = OpTypeVoid
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%4 = OpTypeFunction %3
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; CHECK: [[float:%[a-zA-Z_\d]+]] = OpTypeFloat 32
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%5 = OpTypeFloat 32
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; CHECK: [[newtype:%[a-zA-Z_\d]+]] = OpTypePointer Function [[float]]
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%6 = OpTypePointer Private %5
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; CHECK-NOT: OpVariable [[.+]] Private
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%8 = OpVariable %6 Private
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; CHECK: OpFunction
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%2 = OpFunction %3 None %4
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; CHECK: OpLabel
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%7 = OpLabel
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; CHECK-NEXT: [[newvar:%[a-zA-Z_\d]+]] = OpVariable [[newtype]] Function
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; CHECK: OpLoad [[float]] [[newvar]]
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%9 = OpLoad %5 %8
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndMatch<opt::PrivateToLocalPass>(text, false);
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}
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TEST_F(PrivateToLocalTest, ReuseExistingType) {
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// Change the private variable to a local, and change the types accordingly.
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const std::string text = R"(
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %2 "main"
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OpExecutionMode %2 OriginUpperLeft
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OpSource GLSL 430
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%3 = OpTypeVoid
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%4 = OpTypeFunction %3
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; CHECK: [[float:%[a-zA-Z_\d]+]] = OpTypeFloat 32
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%5 = OpTypeFloat 32
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%func_ptr = OpTypePointer Function %5
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; CHECK: [[newtype:%[a-zA-Z_\d]+]] = OpTypePointer Function [[float]]
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; CHECK-NOT: [[%[a-zA-Z_\d]+]] = OpTypePointer Function [[float]]
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%6 = OpTypePointer Private %5
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; CHECK-NOT: OpVariable [[.+]] Private
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%8 = OpVariable %6 Private
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; CHECK: OpFunction
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%2 = OpFunction %3 None %4
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; CHECK: OpLabel
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%7 = OpLabel
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; CHECK-NEXT: [[newvar:%[a-zA-Z_\d]+]] = OpVariable [[newtype]] Function
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; CHECK: OpLoad [[float]] [[newvar]]
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%9 = OpLoad %5 %8
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndMatch<opt::PrivateToLocalPass>(text, false);
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}
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TEST_F(PrivateToLocalTest, UpdateAccessChain) {
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// Change the private variable to a local, and change the AccessChain.
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const std::string text = R"(
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %2 "main"
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OpExecutionMode %2 OriginUpperLeft
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OpSource GLSL 430
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%uint = OpTypeInt 32 0
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%uint_0 = OpConstant %uint 0
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%void = OpTypeVoid
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%6 = OpTypeFunction %void
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; CHECK: [[float:%[a-zA-Z_\d]+]] = OpTypeFloat
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%float = OpTypeFloat 32
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; CHECK: [[struct:%[a-zA-Z_\d]+]] = OpTypeStruct
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%_struct_8 = OpTypeStruct %float
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%_ptr_Private_float = OpTypePointer Private %float
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; CHECK: [[new_struct_type:%[a-zA-Z_\d]+]] = OpTypePointer Function [[struct]]
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; CHECK: [[new_float_type:%[a-zA-Z_\d]+]] = OpTypePointer Function [[float]]
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%_ptr_Private__struct_8 = OpTypePointer Private %_struct_8
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; CHECK-NOT: OpVariable [[.+]] Private
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%11 = OpVariable %_ptr_Private__struct_8 Private
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; CHECK: OpFunction
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%2 = OpFunction %void None %6
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; CHECK: OpLabel
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%12 = OpLabel
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; CHECK-NEXT: [[newvar:%[a-zA-Z_\d]+]] = OpVariable [[new_struct_type]] Function
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; CHECK: [[member:%[a-zA-Z_\d]+]] = OpAccessChain [[new_float_type]] [[newvar]]
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%13 = OpAccessChain %_ptr_Private_float %11 %uint_0
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; CHECK: OpLoad [[float]] [[member]]
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%14 = OpLoad %float %13
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndMatch<opt::PrivateToLocalPass>(text, false);
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}
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TEST_F(PrivateToLocalTest, UseTexelPointer) {
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// Change the private variable to a local, and change the OpImageTexelPointer.
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const std::string text = R"(
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OpCapability SampledBuffer
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OpCapability StorageImageExtendedFormats
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OpCapability ImageBuffer
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint GLCompute %2 "min" %gl_GlobalInvocationID
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OpExecutionMode %2 LocalSize 64 1 1
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OpSource HLSL 600
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OpDecorate %gl_GlobalInvocationID BuiltIn GlobalInvocationId
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OpDecorate %4 DescriptorSet 4
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OpDecorate %4 Binding 70
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%uint = OpTypeInt 32 0
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%6 = OpTypeImage %uint Buffer 0 0 0 2 R32ui
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%_ptr_UniformConstant_6 = OpTypePointer UniformConstant %6
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%_ptr_Private_6 = OpTypePointer Private %6
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%void = OpTypeVoid
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%10 = OpTypeFunction %void
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%uint_0 = OpConstant %uint 0
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%uint_1 = OpConstant %uint 1
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%v3uint = OpTypeVector %uint 3
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%_ptr_Input_v3uint = OpTypePointer Input %v3uint
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%_ptr_Image_uint = OpTypePointer Image %uint
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%4 = OpVariable %_ptr_UniformConstant_6 UniformConstant
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%16 = OpVariable %_ptr_Private_6 Private
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%gl_GlobalInvocationID = OpVariable %_ptr_Input_v3uint Input
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%2 = OpFunction %void None %10
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%17 = OpLabel
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; Make sure the variable was moved.
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; CHECK: OpFunction
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; CHECK-NEXT: OpLabel
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; CHECK-NEXT: OpVariable %_ptr_Function_6 Function
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%18 = OpLoad %6 %4
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OpStore %16 %18
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%19 = OpImageTexelPointer %_ptr_Image_uint %16 %uint_0 %uint_0
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%20 = OpAtomicIAdd %uint %19 %uint_1 %uint_0 %uint_1
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndMatch<opt::PrivateToLocalPass>(text, false);
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}
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TEST_F(PrivateToLocalTest, UsedInTwoFunctions) {
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// Should not change because it is used in multiple functions.
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const std::string text = R"(
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %2 "main"
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OpExecutionMode %2 OriginUpperLeft
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OpSource GLSL 430
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%3 = OpTypeVoid
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%4 = OpTypeFunction %3
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%5 = OpTypeFloat 32
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%6 = OpTypePointer Private %5
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%8 = OpVariable %6 Private
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%2 = OpFunction %3 None %4
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%7 = OpLabel
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%9 = OpLoad %5 %8
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OpReturn
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OpFunctionEnd
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%10 = OpFunction %3 None %4
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%11 = OpLabel
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%12 = OpLoad %5 %8
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OpReturn
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OpFunctionEnd
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)";
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auto result = SinglePassRunAndDisassemble<opt::StrengthReductionPass>(
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text, /* skip_nop = */ true, /* do_validation = */ false);
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EXPECT_EQ(opt::Pass::Status::SuccessWithoutChange, std::get<1>(result));
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}
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TEST_F(PrivateToLocalTest, UsedInFunctionCall) {
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// Should not change because it is used in a function call. Changing the
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// signature of the function would require cloning the function, which is not
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// worth it.
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const std::string text = R"(
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %2 "main"
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OpExecutionMode %2 OriginUpperLeft
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OpSource GLSL 430
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%void = OpTypeVoid
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%4 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%_ptr_Private_float = OpTypePointer Private %float
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%7 = OpTypeFunction %void %_ptr_Private_float
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%8 = OpVariable %_ptr_Private_float Private
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%2 = OpFunction %void None %4
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%9 = OpLabel
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%10 = OpFunctionCall %void %11 %8
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OpReturn
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OpFunctionEnd
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%11 = OpFunction %void None %7
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%12 = OpFunctionParameter %_ptr_Private_float
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%13 = OpLabel
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%14 = OpLoad %float %12
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OpReturn
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OpFunctionEnd
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)";
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auto result = SinglePassRunAndDisassemble<opt::StrengthReductionPass>(
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text, /* skip_nop = */ true, /* do_validation = */ false);
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EXPECT_EQ(opt::Pass::Status::SuccessWithoutChange, std::get<1>(result));
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}
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#endif
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} // anonymous namespace
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