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glsl: Don't emit structs with runtime-sized arrays 

The GLSL emitted for these was invalid, and we don't need these
structs since they're only used as the store types of buffers, which
are handled elsewhere.

Change-Id: I17c15e408b5c36e9b895e5950528a6d02d1802a6
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/72381
Reviewed-by: Stephen White <senorblanco@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
This commit is contained in:
James Price 2021-12-09 18:54:35 +00:00
parent 57489928c6
commit 1461b032aa
12 changed files with 129 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/writer/glsl/generator_impl.cc
View File

@ -123,9 +123,19 @@ bool GeneratorImpl::Generate() {
return false;
}
} else if (auto* str = decl->As<ast::Struct>()) {
// Skip emission if the struct contains a runtime-sized array, since its
// only use will be as the store-type of a buffer and we emit those
// elsewhere.
// TODO(crbug.com/tint/1339): We could also avoid emitting any other
// struct that is only used as a buffer store type.
TINT_ASSERT(Writer, str->members.size() > 0);
auto* last_member = str->members[str->members.size() - 1];
auto* arr = last_member->type->As<ast::Array>();
if (!arr || !arr->IsRuntimeArray()) {
if (!EmitStructType(current_buffer_, builder_.Sem().Get(str))) {
return false;
}
}
} else if (auto* func = decl->As<ast::Function>()) {
if (func->IsEntryPoint()) {
if (!EmitEntryPointFunction(func)) {

10
src/writer/glsl/generator_impl_sanitizer_test.cc
View File

@ -51,9 +51,6 @@ TEST_F(GlslSanitizerTest, Call_ArrayLength) {
auto* expect = R"(#version 310 es
precision mediump float;
struct my_struct {
float a[];
};
layout (binding = 1) buffer my_struct_1 {
float a[];
@ -105,10 +102,6 @@ TEST_F(GlslSanitizerTest, Call_ArrayLength_OtherMembersInStruct) {
auto* expect = R"(#version 310 es
precision mediump float;
struct my_struct {
float z;
float a[];
};
layout (binding = 1) buffer my_struct_1 {
float z;
@ -163,9 +156,6 @@ TEST_F(GlslSanitizerTest, Call_ArrayLength_ViaLets) {
auto* expect = R"(#version 310 es
precision mediump float;
struct my_struct {
float a[];
};
layout (binding = 1) buffer my_struct_1 {
float a[];

66
test/bug/tint/1113.wgsl.expected.glsl
View File

@ -1,6 +1,28 @@
#version 310 es
precision mediump float;
struct Uniforms {
uint numTriangles;
uint gridSize;
uint pad1;
uint pad2;
vec3 bbMin;
vec3 bbMax;
};
struct Dbg {
uint offsetCounter;
uint pad0;
uint pad1;
uint pad2;
uint value0;
uint value1;
uint value2;
uint value3;
float value_f32_0;
float value_f32_1;
float value_f32_2;
float value_f32_3;
};
layout (binding = 0) uniform Uniforms_1 {
uint numTriangles;
@ -118,6 +140,28 @@ void main() {
#version 310 es
precision mediump float;
struct Uniforms {
uint numTriangles;
uint gridSize;
uint pad1;
uint pad2;
vec3 bbMin;
vec3 bbMax;
};
struct Dbg {
uint offsetCounter;
uint pad0;
uint pad1;
uint pad2;
uint value0;
uint value1;
uint value2;
uint value3;
float value_f32_0;
float value_f32_1;
float value_f32_2;
float value_f32_3;
};
layout (binding = 0) uniform Uniforms_1 {
uint numTriangles;
@ -204,6 +248,28 @@ void main() {
#version 310 es
precision mediump float;
struct Uniforms {
uint numTriangles;
uint gridSize;
uint pad1;
uint pad2;
vec3 bbMin;
vec3 bbMax;
};
struct Dbg {
uint offsetCounter;
uint pad0;
uint pad1;
uint pad2;
uint value0;
uint value1;
uint value2;
uint value3;
float value_f32_0;
float value_f32_1;
float value_f32_2;
float value_f32_3;
};
layout (binding = 0) uniform Uniforms_1 {
uint numTriangles;

20
test/bug/tint/1121.wgsl.expected.glsl
View File

@ -15,11 +15,23 @@ struct TileLightIdData {
uint count;
uint lightId[64];
};
struct Tiles {
TileLightIdData data[4];
};
layout (binding = 0) buffer Tiles_1 {
TileLightIdData data[4];
} tileLightId;
struct Config {
uint numLights;
uint numTiles;
uint tileCountX;
uint tileCountY;
uint numTileLightSlot;
uint tileSize;
};
layout (binding = 0) uniform Config_1 {
uint numLights;
uint numTiles;
@ -29,6 +41,14 @@ layout (binding = 0) uniform Config_1 {
uint tileSize;
} config;
struct Uniforms {
vec4 tint_symbol;
vec4 tint_symbol_1;
mat4 viewMatrix;
mat4 projectionMatrix;
vec4 fullScreenSize;
};
layout (binding = 0) uniform Uniforms_1 {
vec4 tint_symbol;
vec4 tint_symbol_1;

6
test/bug/tint/534.wgsl.expected.glsl
View File

@ -1,6 +1,12 @@
#version 310 es
precision mediump float;
struct Uniforms {
uint dstTextureFlipY;
uint isFloat16;
uint isRGB10A2Unorm;
uint channelCount;
};
uniform highp sampler2D src;
uniform highp sampler2D dst;

5
test/bug/tint/744.wgsl.expected.glsl
View File

@ -1,6 +1,11 @@
#version 310 es
precision mediump float;
struct Uniforms {
uvec2 aShape;
uvec2 bShape;
uvec2 outShape;
};
layout (binding = 0) buffer Matrix_1 {
uint numbers[];

3
test/bug/tint/757.wgsl.expected.glsl
View File

@ -1,6 +1,9 @@
#version 310 es
precision mediump float;
struct Constants {
int level;
};
uniform highp sampler2DArray myTexture;

7
test/bug/tint/913.wgsl.expected.glsl
View File

@ -1,6 +1,13 @@
#version 310 es
precision mediump float;
struct Uniforms {
uint dstTextureFlipY;
uint channelCount;
uvec2 srcCopyOrigin;
uvec2 dstCopyOrigin;
uvec2 copySize;
};
uniform highp sampler2D src;
uniform highp sampler2D dst;

5
test/bug/tint/914.wgsl.expected.glsl
View File

@ -1,6 +1,11 @@
#version 310 es
precision mediump float;
struct Uniforms {
uint dimAOuter;
uint dimInner;
uint dimBOuter;
};
layout (binding = 0) buffer Matrix_1 {
float numbers[];

2
test/intrinsics/ignore/runtime_array.wgsl.expected.glsl
View File

@ -1,4 +1,4 @@
intrinsics/ignore/runtime_array.wgsl:10:5 warning: use of deprecated intrinsic
intrinsics/ignore/runtime_array.wgsl:9:5 warning: use of deprecated intrinsic
ignore(s.arr);
^^^^^^

4
test/intrinsics/ignore/storage_buffer.wgsl.expected.glsl
View File

@ -1,8 +1,8 @@
intrinsics/ignore/storage_buffer.wgsl:10:5 warning: use of deprecated intrinsic
intrinsics/ignore/storage_buffer.wgsl:9:5 warning: use of deprecated intrinsic
ignore(s);
^^^^^^
intrinsics/ignore/storage_buffer.wgsl:11:5 warning: use of deprecated intrinsic
intrinsics/ignore/storage_buffer.wgsl:10:5 warning: use of deprecated intrinsic
ignore(s.i);
^^^^^^

4
test/intrinsics/ignore/uniform_buffer.wgsl.expected.glsl
View File

@ -1,8 +1,8 @@
intrinsics/ignore/uniform_buffer.wgsl:10:5 warning: use of deprecated intrinsic
intrinsics/ignore/uniform_buffer.wgsl:9:5 warning: use of deprecated intrinsic
ignore(u);
^^^^^^
intrinsics/ignore/uniform_buffer.wgsl:11:5 warning: use of deprecated intrinsic
intrinsics/ignore/uniform_buffer.wgsl:10:5 warning: use of deprecated intrinsic
ignore(u.i);
^^^^^^