[tint][fuzz][ast] Add PromoteSideEffectsToDecl fuzzer
Bug: tint:2223
Change-Id: I06050b29ad4d30aa1462d92e8d4890f5f1f57e7b
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/186044
Reviewed-by: James Price <jrprice@google.com>
diff --git a/src/tint/lang/wgsl/ast/transform/BUILD.cmake b/src/tint/lang/wgsl/ast/transform/BUILD.cmake
index 189f039..548a58d 100644
--- a/src/tint/lang/wgsl/ast/transform/BUILD.cmake
+++ b/src/tint/lang/wgsl/ast/transform/BUILD.cmake
@@ -265,6 +265,7 @@
lang/wgsl/ast/transform/offset_first_index_fuzz.cc
lang/wgsl/ast/transform/preserve_padding_fuzz.cc
lang/wgsl/ast/transform/promote_initializers_to_let_fuzz.cc
+ lang/wgsl/ast/transform/promote_side_effects_to_decl_fuzz.cc
lang/wgsl/ast/transform/zero_init_workgroup_memory_fuzz.cc
)
diff --git a/src/tint/lang/wgsl/ast/transform/BUILD.gn b/src/tint/lang/wgsl/ast/transform/BUILD.gn
index 6d8ed7b..3c123c8 100644
--- a/src/tint/lang/wgsl/ast/transform/BUILD.gn
+++ b/src/tint/lang/wgsl/ast/transform/BUILD.gn
@@ -255,6 +255,7 @@
"offset_first_index_fuzz.cc",
"preserve_padding_fuzz.cc",
"promote_initializers_to_let_fuzz.cc",
+ "promote_side_effects_to_decl_fuzz.cc",
"zero_init_workgroup_memory_fuzz.cc",
]
deps = [
diff --git a/src/tint/lang/wgsl/ast/transform/promote_side_effects_to_decl.h b/src/tint/lang/wgsl/ast/transform/promote_side_effects_to_decl.h
index 63035d3..c488745 100644
--- a/src/tint/lang/wgsl/ast/transform/promote_side_effects_to_decl.h
+++ b/src/tint/lang/wgsl/ast/transform/promote_side_effects_to_decl.h
@@ -36,6 +36,8 @@
/// declarations before the statement of usage with the goal of ensuring
/// left-to-right order of evaluation, while respecting short-circuit
/// evaluation.
+/// As `@diagnostic` statements can be decomposed, this transform requires that the
+/// DisableUniformityAnalysis transform is run first.
class PromoteSideEffectsToDecl final : public Castable<PromoteSideEffectsToDecl, Transform> {
public:
/// Constructor
diff --git a/src/tint/lang/wgsl/ast/transform/promote_side_effects_to_decl_fuzz.cc b/src/tint/lang/wgsl/ast/transform/promote_side_effects_to_decl_fuzz.cc
new file mode 100644
index 0000000..57a15f8
--- /dev/null
+++ b/src/tint/lang/wgsl/ast/transform/promote_side_effects_to_decl_fuzz.cc
@@ -0,0 +1,65 @@
+// Copyright 2024 The Dawn & Tint Authors
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this
+// list of conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice,
+// this list of conditions and the following disclaimer in the documentation
+// and/or other materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "src/tint/cmd/fuzz/wgsl/fuzz.h"
+#include "src/tint/lang/wgsl/ast/module.h"
+#include "src/tint/lang/wgsl/ast/transform/promote_side_effects_to_decl.h"
+#include "src/tint/lang/wgsl/extension.h"
+#include "src/tint/lang/wgsl/sem/module.h"
+
+namespace tint::ast::transform {
+namespace {
+
+bool CanRun(const Program& program) {
+ if (!program.Sem().Module()->Extensions().Contains(
+ wgsl::Extension::kChromiumDisableUniformityAnalysis)) {
+ return false; // Requires 'chromium_disable_uniformity_analysis'
+ }
+ if (program.AST().HasOverrides()) {
+ return false; // Overrides are not supported.
+ }
+ return true;
+}
+
+void PromoteSideEffectsToDeclFuzzer(const Program& program) {
+ if (!CanRun(program)) {
+ return;
+ }
+
+ DataMap outputs;
+ if (auto result = PromoteSideEffectsToDecl{}.Apply(program, DataMap{}, outputs)) {
+ if (!result->IsValid()) {
+ TINT_ICE() << "PromoteSideEffectsToDecl returned invalid program:\n"
+ << result->Diagnostics();
+ }
+ }
+}
+
+} // namespace
+} // namespace tint::ast::transform
+
+TINT_WGSL_PROGRAM_FUZZER(tint::ast::transform::PromoteSideEffectsToDeclFuzzer);
