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|
// Copyright (c) 2018 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <string>
#include "test/opt/pass_fixture.h"
#include "test/opt/pass_utils.h"
namespace {
const double kDefaultLoadReductionThreshold = 0.9;
} // namespace
namespace spvtools {
namespace opt {
namespace {
using ReduceLoadSizeTest = PassTest<::testing::Test>;
TEST_F(ReduceLoadSizeTest, cbuffer_load_extract) {
// Originally from the following HLSL:
// struct S {
// uint f;
// };
//
//
// cbuffer gBuffer { uint a[32]; };
//
// RWStructuredBuffer<S> gRWSBuffer;
//
// uint foo(uint p[32]) {
// return p[1];
// }
//
// [numthreads(1,1,1)]
// void main() {
// gRWSBuffer[0].f = foo(a);
// }
const std::string test =
R"(
OpCapability Shader
OpMemoryModel Logical GLSL450
OpEntryPoint GLCompute %main "main"
OpExecutionMode %main LocalSize 1 1 1
OpSource HLSL 600
OpName %type_gBuffer "type.gBuffer"
OpMemberName %type_gBuffer 0 "a"
OpName %gBuffer "gBuffer"
OpName %S "S"
OpMemberName %S 0 "f"
OpName %type_RWStructuredBuffer_S "type.RWStructuredBuffer.S"
OpName %gRWSBuffer "gRWSBuffer"
OpName %main "main"
OpDecorate %_arr_uint_uint_32 ArrayStride 16
OpMemberDecorate %type_gBuffer 0 Offset 0
OpDecorate %type_gBuffer Block
OpMemberDecorate %S 0 Offset 0
OpDecorate %_runtimearr_S ArrayStride 4
OpMemberDecorate %type_RWStructuredBuffer_S 0 Offset 0
OpDecorate %type_RWStructuredBuffer_S BufferBlock
OpDecorate %gBuffer DescriptorSet 0
OpDecorate %gBuffer Binding 0
OpDecorate %gRWSBuffer DescriptorSet 0
OpDecorate %gRWSBuffer Binding 1
%uint = OpTypeInt 32 0
%uint_32 = OpConstant %uint 32
%_arr_uint_uint_32 = OpTypeArray %uint %uint_32
%type_gBuffer = OpTypeStruct %_arr_uint_uint_32
%_ptr_Uniform_type_gBuffer = OpTypePointer Uniform %type_gBuffer
%S = OpTypeStruct %uint
%_runtimearr_S = OpTypeRuntimeArray %S
%type_RWStructuredBuffer_S = OpTypeStruct %_runtimearr_S
%_ptr_Uniform_type_RWStructuredBuffer_S = OpTypePointer Uniform %type_RWStructuredBuffer_S
%int = OpTypeInt 32 1
%void = OpTypeVoid
%15 = OpTypeFunction %void
%int_0 = OpConstant %int 0
%_ptr_Uniform__arr_uint_uint_32 = OpTypePointer Uniform %_arr_uint_uint_32
%uint_0 = OpConstant %uint 0
%_ptr_Uniform_uint = OpTypePointer Uniform %uint
%gBuffer = OpVariable %_ptr_Uniform_type_gBuffer Uniform
%gRWSBuffer = OpVariable %_ptr_Uniform_type_RWStructuredBuffer_S Uniform
%main = OpFunction %void None %15
%20 = OpLabel
; CHECK: [[ac1:%\w+]] = OpAccessChain {{%\w+}} %gBuffer %int_0
; CHECK: [[ac2:%\w+]] = OpAccessChain {{%\w+}} [[ac1]] %uint_1
; CHECK: [[ld:%\w+]] = OpLoad {{%\w+}} [[ac2]]
; CHECK: OpStore {{%\w+}} [[ld]]
%21 = OpAccessChain %_ptr_Uniform__arr_uint_uint_32 %gBuffer %int_0
%22 = OpLoad %_arr_uint_uint_32 %21 ; Load of 32-element array.
%23 = OpCompositeExtract %uint %22 1
%24 = OpAccessChain %_ptr_Uniform_uint %gRWSBuffer %int_0 %uint_0 %int_0
OpStore %24 %23
OpReturn
OpFunctionEnd
)";
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SetDisassembleOptions(SPV_BINARY_TO_TEXT_OPTION_NO_HEADER |
SPV_BINARY_TO_TEXT_OPTION_FRIENDLY_NAMES);
SinglePassRunAndMatch<ReduceLoadSize>(test, false,
kDefaultLoadReductionThreshold);
}
TEST_F(ReduceLoadSizeTest, cbuffer_load_extract_not_affected_by_debug_instr) {
// Originally from the following HLSL:
// struct S {
// uint f;
// };
//
//
// cbuffer gBuffer { uint a[32]; };
//
// RWStructuredBuffer<S> gRWSBuffer;
//
// uint foo(uint p[32]) {
// return p[1];
// }
//
// [numthreads(1,1,1)]
// void main() {
// gRWSBuffer[0].f = foo(a);
// }
const std::string test =
R"(
OpCapability Shader
%ext = OpExtInstImport "OpenCL.DebugInfo.100"
OpMemoryModel Logical GLSL450
OpEntryPoint GLCompute %main "main"
OpExecutionMode %main LocalSize 1 1 1
OpSource HLSL 600
%file_name = OpString "test"
%float_name = OpString "float"
%main_name = OpString "main"
%f_name = OpString "f"
OpName %type_gBuffer "type.gBuffer"
OpMemberName %type_gBuffer 0 "a"
OpName %gBuffer "gBuffer"
OpName %S "S"
OpMemberName %S 0 "f"
OpName %type_RWStructuredBuffer_S "type.RWStructuredBuffer.S"
OpName %gRWSBuffer "gRWSBuffer"
OpName %main "main"
OpDecorate %_arr_uint_uint_32 ArrayStride 16
OpMemberDecorate %type_gBuffer 0 Offset 0
OpDecorate %type_gBuffer Block
OpMemberDecorate %S 0 Offset 0
OpDecorate %_runtimearr_S ArrayStride 4
OpMemberDecorate %type_RWStructuredBuffer_S 0 Offset 0
OpDecorate %type_RWStructuredBuffer_S BufferBlock
OpDecorate %gBuffer DescriptorSet 0
OpDecorate %gBuffer Binding 0
OpDecorate %gRWSBuffer DescriptorSet 0
OpDecorate %gRWSBuffer Binding 1
%uint = OpTypeInt 32 0
%uint_32 = OpConstant %uint 32
%_arr_uint_uint_32 = OpTypeArray %uint %uint_32
%type_gBuffer = OpTypeStruct %_arr_uint_uint_32
%_ptr_Uniform_type_gBuffer = OpTypePointer Uniform %type_gBuffer
%S = OpTypeStruct %uint
%_runtimearr_S = OpTypeRuntimeArray %S
%type_RWStructuredBuffer_S = OpTypeStruct %_runtimearr_S
%_ptr_Uniform_type_RWStructuredBuffer_S = OpTypePointer Uniform %type_RWStructuredBuffer_S
%int = OpTypeInt 32 1
%void = OpTypeVoid
%15 = OpTypeFunction %void
%int_0 = OpConstant %int 0
%_ptr_Uniform__arr_uint_uint_32 = OpTypePointer Uniform %_arr_uint_uint_32
%uint_0 = OpConstant %uint 0
%_ptr_Uniform_uint = OpTypePointer Uniform %uint
%gBuffer = OpVariable %_ptr_Uniform_type_gBuffer Uniform
%gRWSBuffer = OpVariable %_ptr_Uniform_type_RWStructuredBuffer_S Uniform
%null_expr = OpExtInst %void %ext DebugExpression
%src = OpExtInst %void %ext DebugSource %file_name
%cu = OpExtInst %void %ext DebugCompilationUnit 1 4 %src HLSL
%dbg_tf = OpExtInst %void %ext DebugTypeBasic %float_name %uint_32 Float
%main_ty = OpExtInst %void %ext DebugTypeFunction FlagIsProtected|FlagIsPrivate %dbg_tf
%dbg_main = OpExtInst %void %ext DebugFunction %main_name %main_ty %src 0 0 %cu %main_name FlagIsProtected|FlagIsPrivate 10 %main
%dbg_f = OpExtInst %void %ext DebugLocalVariable %f_name %dbg_tf %src 0 0 %dbg_main FlagIsLocal
%main = OpFunction %void None %15
%20 = OpLabel
%s = OpExtInst %void %ext DebugScope %dbg_main
; CHECK: [[ac1:%\w+]] = OpAccessChain {{%\w+}} %gBuffer %int_0
; CHECK: [[ac2:%\w+]] = OpAccessChain {{%\w+}} [[ac1]] %uint_1
; CHECK: [[ld:%\w+]] = OpLoad {{%\w+}} [[ac2]]
; CHECK: OpStore {{%\w+}} [[ld]]
%21 = OpAccessChain %_ptr_Uniform__arr_uint_uint_32 %gBuffer %int_0
%22 = OpLoad %_arr_uint_uint_32 %21 ; Load of 32-element array.
%value = OpExtInst %void %ext DebugValue %dbg_f %22 %null_expr
%23 = OpCompositeExtract %uint %22 1
%24 = OpAccessChain %_ptr_Uniform_uint %gRWSBuffer %int_0 %uint_0 %int_0
OpStore %24 %23
OpReturn
OpFunctionEnd
)";
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SetDisassembleOptions(SPV_BINARY_TO_TEXT_OPTION_NO_HEADER |
SPV_BINARY_TO_TEXT_OPTION_FRIENDLY_NAMES);
SinglePassRunAndMatch<ReduceLoadSize>(test, false,
kDefaultLoadReductionThreshold);
}
TEST_F(ReduceLoadSizeTest, cbuffer_load_extract_vector) {
// Originally from the following HLSL:
// struct S {
// uint f;
// };
//
//
// cbuffer gBuffer { uint4 a; };
//
// RWStructuredBuffer<S> gRWSBuffer;
//
// uint foo(uint p[32]) {
// return p[1];
// }
//
// [numthreads(1,1,1)]
// void main() {
// gRWSBuffer[0].f = foo(a);
// }
const std::string test =
R"(OpCapability Shader
OpMemoryModel Logical GLSL450
OpEntryPoint GLCompute %main "main"
OpExecutionMode %main LocalSize 1 1 1
OpSource HLSL 600
OpName %type_gBuffer "type.gBuffer"
OpMemberName %type_gBuffer 0 "a"
OpName %gBuffer "gBuffer"
OpName %S "S"
OpMemberName %S 0 "f"
OpName %type_RWStructuredBuffer_S "type.RWStructuredBuffer.S"
OpName %gRWSBuffer "gRWSBuffer"
OpName %main "main"
OpMemberDecorate %type_gBuffer 0 Offset 0
OpDecorate %type_gBuffer Block
OpMemberDecorate %S 0 Offset 0
OpDecorate %_runtimearr_S ArrayStride 4
OpMemberDecorate %type_RWStructuredBuffer_S 0 Offset 0
OpDecorate %type_RWStructuredBuffer_S BufferBlock
OpDecorate %gBuffer DescriptorSet 0
OpDecorate %gBuffer Binding 0
OpDecorate %gRWSBuffer DescriptorSet 0
OpDecorate %gRWSBuffer Binding 1
%uint = OpTypeInt 32 0
%uint_32 = OpConstant %uint 32
%v4uint = OpTypeVector %uint 4
%type_gBuffer = OpTypeStruct %v4uint
%_ptr_Uniform_type_gBuffer = OpTypePointer Uniform %type_gBuffer
%S = OpTypeStruct %uint
%_runtimearr_S = OpTypeRuntimeArray %S
%type_RWStructuredBuffer_S = OpTypeStruct %_runtimearr_S
%_ptr_Uniform_type_RWStructuredBuffer_S = OpTypePointer Uniform %type_RWStructuredBuffer_S
%int = OpTypeInt 32 1
%void = OpTypeVoid
%15 = OpTypeFunction %void
%int_0 = OpConstant %int 0
%_ptr_Uniform_v4uint = OpTypePointer Uniform %v4uint
%uint_0 = OpConstant %uint 0
%_ptr_Uniform_uint = OpTypePointer Uniform %uint
%gBuffer = OpVariable %_ptr_Uniform_type_gBuffer Uniform
%gRWSBuffer = OpVariable %_ptr_Uniform_type_RWStructuredBuffer_S Uniform
%main = OpFunction %void None %15
%20 = OpLabel
%21 = OpAccessChain %_ptr_Uniform_v4uint %gBuffer %int_0
%22 = OpLoad %v4uint %21
%23 = OpCompositeExtract %uint %22 1
%24 = OpAccessChain %_ptr_Uniform_uint %gRWSBuffer %int_0 %uint_0 %int_0
OpStore %24 %23
OpReturn
OpFunctionEnd
)";
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SetDisassembleOptions(SPV_BINARY_TO_TEXT_OPTION_NO_HEADER |
SPV_BINARY_TO_TEXT_OPTION_FRIENDLY_NAMES);
SinglePassRunAndCheck<ReduceLoadSize>(test, test, true, false,
kDefaultLoadReductionThreshold);
}
TEST_F(ReduceLoadSizeTest, cbuffer_load_5_extract) {
// All of the elements of the value loaded are used, so we should not
// change the load.
const std::string test =
R"(OpCapability Shader
OpMemoryModel Logical GLSL450
OpEntryPoint GLCompute %main "main"
OpExecutionMode %main LocalSize 1 1 1
OpSource HLSL 600
OpName %type_gBuffer "type.gBuffer"
OpMemberName %type_gBuffer 0 "a"
OpName %gBuffer "gBuffer"
OpName %S "S"
OpMemberName %S 0 "f"
OpName %type_RWStructuredBuffer_S "type.RWStructuredBuffer.S"
OpName %gRWSBuffer "gRWSBuffer"
OpName %main "main"
OpDecorate %_arr_uint_uint_5 ArrayStride 16
OpMemberDecorate %type_gBuffer 0 Offset 0
OpDecorate %type_gBuffer Block
OpMemberDecorate %S 0 Offset 0
OpDecorate %_runtimearr_S ArrayStride 4
OpMemberDecorate %type_RWStructuredBuffer_S 0 Offset 0
OpDecorate %type_RWStructuredBuffer_S BufferBlock
OpDecorate %gBuffer DescriptorSet 0
OpDecorate %gBuffer Binding 0
OpDecorate %gRWSBuffer DescriptorSet 0
OpDecorate %gRWSBuffer Binding 1
%uint = OpTypeInt 32 0
%uint_5 = OpConstant %uint 5
%_arr_uint_uint_5 = OpTypeArray %uint %uint_5
%type_gBuffer = OpTypeStruct %_arr_uint_uint_5
%_ptr_Uniform_type_gBuffer = OpTypePointer Uniform %type_gBuffer
%S = OpTypeStruct %uint
%_runtimearr_S = OpTypeRuntimeArray %S
%type_RWStructuredBuffer_S = OpTypeStruct %_runtimearr_S
%_ptr_Uniform_type_RWStructuredBuffer_S = OpTypePointer Uniform %type_RWStructuredBuffer_S
%int = OpTypeInt 32 1
%void = OpTypeVoid
%15 = OpTypeFunction %void
%int_0 = OpConstant %int 0
%_ptr_Uniform__arr_uint_uint_5 = OpTypePointer Uniform %_arr_uint_uint_5
%uint_0 = OpConstant %uint 0
%_ptr_Uniform_uint = OpTypePointer Uniform %uint
%gBuffer = OpVariable %_ptr_Uniform_type_gBuffer Uniform
%gRWSBuffer = OpVariable %_ptr_Uniform_type_RWStructuredBuffer_S Uniform
%main = OpFunction %void None %15
%20 = OpLabel
%21 = OpAccessChain %_ptr_Uniform__arr_uint_uint_5 %gBuffer %int_0
%22 = OpLoad %_arr_uint_uint_5 %21
%23 = OpCompositeExtract %uint %22 0
%24 = OpCompositeExtract %uint %22 1
%25 = OpCompositeExtract %uint %22 2
%26 = OpCompositeExtract %uint %22 3
%27 = OpCompositeExtract %uint %22 4
%28 = OpIAdd %uint %23 %24
%29 = OpIAdd %uint %28 %25
%30 = OpIAdd %uint %29 %26
%31 = OpIAdd %uint %20 %27
%32 = OpAccessChain %_ptr_Uniform_uint %gRWSBuffer %int_0 %uint_0 %int_0
OpStore %32 %31
OpReturn
OpFunctionEnd
)";
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SetDisassembleOptions(SPV_BINARY_TO_TEXT_OPTION_NO_HEADER |
SPV_BINARY_TO_TEXT_OPTION_FRIENDLY_NAMES);
SinglePassRunAndCheck<ReduceLoadSize>(test, test, true, false,
kDefaultLoadReductionThreshold);
}
TEST_F(ReduceLoadSizeTest, cbuffer_load_fully_used) {
// The result of the load (%22) is used in an instruction that uses the whole
// load and has only 1 in operand. This trigger issue #1559.
const std::string test =
R"(OpCapability Shader
OpMemoryModel Logical GLSL450
OpEntryPoint GLCompute %main "main"
OpExecutionMode %main LocalSize 1 1 1
OpSource HLSL 600
OpName %type_gBuffer "type.gBuffer"
OpMemberName %type_gBuffer 0 "a"
OpName %gBuffer "gBuffer"
OpName %S "S"
OpMemberName %S 0 "f"
OpName %type_RWStructuredBuffer_S "type.RWStructuredBuffer.S"
OpName %gRWSBuffer "gRWSBuffer"
OpName %main "main"
OpMemberDecorate %type_gBuffer 0 Offset 0
OpDecorate %type_gBuffer Block
OpMemberDecorate %S 0 Offset 0
OpDecorate %_runtimearr_S ArrayStride 4
OpMemberDecorate %type_RWStructuredBuffer_S 0 Offset 0
OpDecorate %type_RWStructuredBuffer_S BufferBlock
OpDecorate %gBuffer DescriptorSet 0
OpDecorate %gBuffer Binding 0
OpDecorate %gRWSBuffer DescriptorSet 0
OpDecorate %gRWSBuffer Binding 1
%uint = OpTypeInt 32 0
%uint_32 = OpConstant %uint 32
%v4uint = OpTypeVector %uint 4
%float = OpTypeFloat 32
%v4float = OpTypeVector %float 4
%type_gBuffer = OpTypeStruct %v4uint
%_ptr_Uniform_type_gBuffer = OpTypePointer Uniform %type_gBuffer
%S = OpTypeStruct %uint
%_runtimearr_S = OpTypeRuntimeArray %S
%type_RWStructuredBuffer_S = OpTypeStruct %_runtimearr_S
%_ptr_Uniform_type_RWStructuredBuffer_S = OpTypePointer Uniform %type_RWStructuredBuffer_S
%int = OpTypeInt 32 1
%void = OpTypeVoid
%15 = OpTypeFunction %void
%int_0 = OpConstant %int 0
%_ptr_Uniform_v4uint = OpTypePointer Uniform %v4uint
%uint_0 = OpConstant %uint 0
%_ptr_Uniform_uint = OpTypePointer Uniform %uint
%gBuffer = OpVariable %_ptr_Uniform_type_gBuffer Uniform
%gRWSBuffer = OpVariable %_ptr_Uniform_type_RWStructuredBuffer_S Uniform
%main = OpFunction %void None %15
%20 = OpLabel
%21 = OpAccessChain %_ptr_Uniform_v4uint %gBuffer %int_0
%22 = OpLoad %v4uint %21
%23 = OpCompositeExtract %uint %22 1
%24 = OpConvertUToF %v4float %22
%25 = OpAccessChain %_ptr_Uniform_uint %gRWSBuffer %int_0 %uint_0 %int_0
OpStore %25 %23
OpReturn
OpFunctionEnd
)";
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SetDisassembleOptions(SPV_BINARY_TO_TEXT_OPTION_NO_HEADER |
SPV_BINARY_TO_TEXT_OPTION_FRIENDLY_NAMES);
SinglePassRunAndCheck<ReduceLoadSize>(test, test, true, false,
kDefaultLoadReductionThreshold);
}
TEST_F(ReduceLoadSizeTest, replace_cbuffer_load_fully_used) {
const std::string test =
R"(
OpCapability Shader
OpCapability SampledBuffer
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %main "main" %out_var_SV_Target0
OpExecutionMode %main OriginUpperLeft
OpSource HLSL 600
OpName %type_MaterialInstancing_cbuffer "type.MaterialInstancing_cbuffer"
OpMemberName %type_MaterialInstancing_cbuffer 0 "MaterialInstancing_constants"
OpName %MaterialInstancing_Constants "MaterialInstancing_Constants"
OpMemberName %MaterialInstancing_Constants 0 "offset0"
OpMemberName %MaterialInstancing_Constants 1 "params"
OpName %InstancingParams_Constants "InstancingParams_Constants"
OpMemberName %InstancingParams_Constants 0 "offset1"
OpName %MaterialInstancing_cbuffer "MaterialInstancing_cbuffer"
OpName %out_var_SV_Target0 "out.var.SV_Target0"
OpName %main "main"
OpDecorate %out_var_SV_Target0 Location 0
OpDecorate %MaterialInstancing_cbuffer DescriptorSet 6
OpDecorate %MaterialInstancing_cbuffer Binding 0
OpMemberDecorate %InstancingParams_Constants 0 Offset 0
OpMemberDecorate %MaterialInstancing_Constants 0 Offset 0
OpMemberDecorate %MaterialInstancing_Constants 1 Offset 16
OpMemberDecorate %type_MaterialInstancing_cbuffer 0 Offset 0
OpDecorate %type_MaterialInstancing_cbuffer Block
%int = OpTypeInt 32 1
%int_0 = OpConstant %int 0
%v4int = OpTypeVector %int 4
%InstancingParams_Constants = OpTypeStruct %v4int
%MaterialInstancing_Constants = OpTypeStruct %v4int %InstancingParams_Constants
%type_MaterialInstancing_cbuffer = OpTypeStruct %MaterialInstancing_Constants
%_ptr_Uniform_type_MaterialInstancing_cbuffer = OpTypePointer Uniform %type_MaterialInstancing_cbuffer
%_ptr_Output_int = OpTypePointer Output %int
%void = OpTypeVoid
%60 = OpTypeFunction %void
%_ptr_Uniform_MaterialInstancing_Constants = OpTypePointer Uniform %MaterialInstancing_Constants
%MaterialInstancing_cbuffer = OpVariable %_ptr_Uniform_type_MaterialInstancing_cbuffer Uniform
%out_var_SV_Target0 = OpVariable %_ptr_Output_int Output
%main = OpFunction %void None %60
%80 = OpLabel
%131 = OpAccessChain %_ptr_Uniform_MaterialInstancing_Constants %MaterialInstancing_cbuffer %int_0
%132 = OpLoad %MaterialInstancing_Constants %131
; CHECK: [[ac1:%\w+]] = OpAccessChain {{%\w+}} %MaterialInstancing_cbuffer %int_0
; CHECK: [[ac2:%\w+]] = OpAccessChain {{%\w+}} [[ac1]] %uint_0
; CHECK: OpLoad %v4int [[ac2]]
; CHECK: [[ac3:%\w+]] = OpAccessChain {{%\w+}} [[ac1]] %uint_1
; CHECK: [[ac4:%\w+]] = OpAccessChain {{%\w+}} [[ac3]] %uint_0
; CHECK: OpLoad %v4int [[ac4]]
%134 = OpCompositeExtract %v4int %132 0
%135 = OpCompositeExtract %InstancingParams_Constants %132 1
%136 = OpCompositeExtract %v4int %135 0
%149 = OpCompositeExtract %int %134 0
%185 = OpCompositeExtract %int %136 0
%156 = OpIAdd %int %149 %185
OpStore %out_var_SV_Target0 %156
OpReturn
OpFunctionEnd
)";
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
SetDisassembleOptions(SPV_BINARY_TO_TEXT_OPTION_NO_HEADER |
SPV_BINARY_TO_TEXT_OPTION_FRIENDLY_NAMES);
SinglePassRunAndMatch<ReduceLoadSize>(test, false, 1.1);
}
TEST_F(ReduceLoadSizeTest, replace_array_with_spec_constant_size) {
const std::string test =
R"(
OpCapability ClipDistance
OpExtension " "
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %1 " "
OpExecutionMode %1 OriginUpperLeft
%void = OpTypeVoid
%3 = OpTypeFunction %void
%int = OpTypeInt 32 1
%uint = OpTypeInt 32 0
%6 = OpSpecConstant %uint 538976288
%_arr_int_6 = OpTypeArray %int %6
%_struct_8 = OpTypeStruct %_arr_int_6
%_struct_9 = OpTypeStruct %_struct_8
%_ptr_Uniform__struct_9 = OpTypePointer Uniform %_struct_9
; CHECK: [[var:%\w+]] = OpVariable %_ptr_Uniform__struct_9 Uniform
%11 = OpVariable %_ptr_Uniform__struct_9 Uniform
%int_0 = OpConstant %int 0
%_ptr_Uniform__arr_int_6 = OpTypePointer Uniform %_arr_int_6
%1 = OpFunction %void None %3
%14 = OpLabel
; CHECK: [[ac:%\w+]] = OpAccessChain %_ptr_Uniform__arr_int_6 [[var]] %int_0 %int_0
; CHECK: [[new_ac:%\w+]] = OpAccessChain %_ptr_Uniform_int [[ac]] %uint_538976288
; CHECK: [[ld:%\w+]] = OpLoad %int [[new_ac]]
; CHECK: %18 = OpIAdd %int [[ld]] [[ld]]
%15 = OpAccessChain %_ptr_Uniform__arr_int_6 %11 %int_0 %int_0
%16 = OpLoad %_arr_int_6 %15
%17 = OpCompositeExtract %int %16 538976288
%18 = OpIAdd %int %17 %17
OpUnreachable
OpFunctionEnd
)";
SinglePassRunAndMatch<ReduceLoadSize>(test, false,
kDefaultLoadReductionThreshold);
}
} // namespace
} // namespace opt
} // namespace spvtools
|
