[NFC][HLSL] Let RootSignatureParser own the references
#150310
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- this is a clean up from a review comment that we should let the parser own the constructed `RootSignatureElement`s Original comment here: .
llvmbot
added
clang
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@llvm/pr-subscribers-hlsl @llvm/pr-subscribers-clang Author: Finn Plummer (inbelic) Changes
Original comment here: #147115 (comment). Patch is 29.30 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/150310.diff 4 Files Affected:
diff --git a/clang/include/clang/Parse/ParseHLSLRootSignature.h b/clang/include/clang/Parse/ParseHLSLRootSignature.h
index ad66a26798847..a49bdfd51fbee 100644
--- a/clang/include/clang/Parse/ParseHLSLRootSignature.h
+++ b/clang/include/clang/Parse/ParseHLSLRootSignature.h
@@ -30,7 +30,6 @@ namespace hlsl {
class RootSignatureParser {
public:
RootSignatureParser(llvm::dxbc::RootSignatureVersion Version,
- SmallVector<RootSignatureElement> &Elements,
StringLiteral *Signature, Preprocessor &PP);
/// Consumes tokens from the Lexer and constructs the in-memory
@@ -40,6 +39,9 @@ class RootSignatureParser {
/// Returns true if a parsing error is encountered.
bool parse();
+ /// Return all elements that have been parsed.
+ ArrayRef<RootSignatureElement> getElements() { return Elements; }
+
private:
DiagnosticsEngine &getDiags() { return PP.getDiagnostics(); }
@@ -226,7 +228,7 @@ class RootSignatureParser {
private:
llvm::dxbc::RootSignatureVersion Version;
- SmallVector<RootSignatureElement> &Elements;
+ SmallVector<RootSignatureElement> Elements;
StringLiteral *Signature;
RootSignatureLexer Lexer;
Preprocessor &PP;
diff --git a/clang/lib/Parse/ParseDeclCXX.cpp b/clang/lib/Parse/ParseDeclCXX.cpp
index 31392d1dd8d4b..bc8841c68b42c 100644
--- a/clang/lib/Parse/ParseDeclCXX.cpp
+++ b/clang/lib/Parse/ParseDeclCXX.cpp
@@ -4940,9 +4940,8 @@ void Parser::ParseHLSLRootSignatureAttributeArgs(ParsedAttributes &Attrs) {
// signature string and construct the in-memory elements
if (!Found) {
// Invoke the root signature parser to construct the in-memory constructs
- SmallVector<hlsl::RootSignatureElement> RootElements;
- hlsl::RootSignatureParser Parser(getLangOpts().HLSLRootSigVer, RootElements,
- Signature, PP);
+ hlsl::RootSignatureParser Parser(getLangOpts().HLSLRootSigVer, Signature,
+ PP);
if (Parser.parse()) {
T.consumeClose();
return;
@@ -4950,7 +4949,7 @@ void Parser::ParseHLSLRootSignatureAttributeArgs(ParsedAttributes &Attrs) {
// Construct the declaration.
Actions.HLSL().ActOnFinishRootSignatureDecl(RootSignatureLoc, DeclIdent,
- RootElements);
+ Parser.getElements());
}
// Create the arg for the ParsedAttr
diff --git a/clang/lib/Parse/ParseHLSLRootSignature.cpp b/clang/lib/Parse/ParseHLSLRootSignature.cpp
index db9ed8373d01d..98dc458f7adc5 100644
--- a/clang/lib/Parse/ParseHLSLRootSignature.cpp
+++ b/clang/lib/Parse/ParseHLSLRootSignature.cpp
@@ -27,11 +27,10 @@ static const TokenKind RootElementKeywords[] = {
};
RootSignatureParser::RootSignatureParser(
- llvm::dxbc::RootSignatureVersion Version,
- SmallVector<RootSignatureElement> &Elements, StringLiteral *Signature,
+ llvm::dxbc::RootSignatureVersion Version, StringLiteral *Signature,
Preprocessor &PP)
- : Version(Version), Elements(Elements), Signature(Signature),
- Lexer(Signature->getString()), PP(PP), CurToken(0) {}
+ : Version(Version), Signature(Signature), Lexer(Signature->getString()),
+ PP(PP), CurToken(0) {}
bool RootSignatureParser::parse() {
// Iterate as many RootSignatureElements as possible, until we hit the
diff --git a/clang/unittests/Parse/ParseHLSLRootSignatureTest.cpp b/clang/unittests/Parse/ParseHLSLRootSignatureTest.cpp
index 4b24800489c8e..4d08f8d2c5464 100644
--- a/clang/unittests/Parse/ParseHLSLRootSignatureTest.cpp
+++ b/clang/unittests/Parse/ParseHLSLRootSignatureTest.cpp
@@ -136,15 +136,13 @@ TEST_F(ParseHLSLRootSignatureTest, ValidParseEmptyTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test no diagnostics produced
Consumer->setNoDiag();
ASSERT_FALSE(Parser.parse());
- ASSERT_EQ((int)Elements.size(), 0);
+ ASSERT_EQ((int)Parser.getElements().size(), 0);
ASSERT_TRUE(Consumer->isSatisfied());
}
@@ -172,15 +170,14 @@ TEST_F(ParseHLSLRootSignatureTest, ValidParseDTClausesTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test no diagnostics produced
Consumer->setNoDiag();
ASSERT_FALSE(Parser.parse());
+ auto Elements = Parser.getElements();
// First Descriptor Table with 4 elements
RootElement Elem = Elements[0].getElement();
ASSERT_TRUE(std::holds_alternative<DescriptorTableClause>(Elem));
@@ -277,15 +274,14 @@ TEST_F(ParseHLSLRootSignatureTest, ValidParseStaticSamplerTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test no diagnostics produced
Consumer->setNoDiag();
ASSERT_FALSE(Parser.parse());
+ auto Elements = Parser.getElements();
ASSERT_EQ(Elements.size(), 2u);
// Check default values are as expected
@@ -364,15 +360,14 @@ TEST_F(ParseHLSLRootSignatureTest, ValidParseFloatsTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test no diagnostics produced
Consumer->setNoDiag();
ASSERT_FALSE(Parser.parse());
+ auto Elements = Parser.getElements();
RootElement Elem = Elements[0].getElement();
ASSERT_TRUE(std::holds_alternative<StaticSampler>(Elem));
ASSERT_FLOAT_EQ(std::get<StaticSampler>(Elem).MipLODBias, 0.f);
@@ -441,15 +436,14 @@ TEST_F(ParseHLSLRootSignatureTest, ValidSamplerFlagsTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test no diagnostics produced
Consumer->setNoDiag();
ASSERT_FALSE(Parser.parse());
+ auto Elements = Parser.getElements();
RootElement Elem = Elements[0].getElement();
ASSERT_TRUE(std::holds_alternative<DescriptorTableClause>(Elem));
ASSERT_EQ(std::get<DescriptorTableClause>(Elem).Type, ClauseType::Sampler);
@@ -474,15 +468,14 @@ TEST_F(ParseHLSLRootSignatureTest, ValidParseRootConsantsTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test no diagnostics produced
Consumer->setNoDiag();
ASSERT_FALSE(Parser.parse());
+ auto Elements = Parser.getElements();
ASSERT_EQ(Elements.size(), 2u);
RootElement Elem = Elements[0].getElement();
@@ -533,15 +526,14 @@ TEST_F(ParseHLSLRootSignatureTest, ValidParseRootFlagsTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test no diagnostics produced
Consumer->setNoDiag();
ASSERT_FALSE(Parser.parse());
+ auto Elements = Parser.getElements();
ASSERT_EQ(Elements.size(), 3u);
RootElement Elem = Elements[0].getElement();
@@ -588,15 +580,14 @@ TEST_F(ParseHLSLRootSignatureTest, ValidParseRootDescriptorsTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test no diagnostics produced
Consumer->setNoDiag();
ASSERT_FALSE(Parser.parse());
+ auto Elements = Parser.getElements();
ASSERT_EQ(Elements.size(), 4u);
RootElement Elem = Elements[0].getElement();
@@ -664,9 +655,7 @@ TEST_F(ParseHLSLRootSignatureTest, ValidTrailingCommaTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test no diagnostics produced
Consumer->setNoDiag();
@@ -697,15 +686,14 @@ TEST_F(ParseHLSLRootSignatureTest, ValidVersion10Test) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_0, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_0, Signature, *PP);
// Test no diagnostics produced
Consumer->setNoDiag();
ASSERT_FALSE(Parser.parse());
+ auto Elements = Parser.getElements();
auto DefRootDescriptorFlag = llvm::dxbc::RootDescriptorFlags::DataVolatile;
RootElement Elem = Elements[0].getElement();
ASSERT_TRUE(std::holds_alternative<RootDescriptor>(Elem));
@@ -770,15 +758,14 @@ TEST_F(ParseHLSLRootSignatureTest, ValidVersion11Test) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test no diagnostics produced
Consumer->setNoDiag();
ASSERT_FALSE(Parser.parse());
+ auto Elements = Parser.getElements();
RootElement Elem = Elements[0].getElement();
ASSERT_TRUE(std::holds_alternative<RootDescriptor>(Elem));
ASSERT_EQ(std::get<RootDescriptor>(Elem).Type, DescriptorType::CBuffer);
@@ -838,9 +825,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidParseUnexpectedTokenTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test correct diagnostic produced
Consumer->setExpected(diag::err_expected_either);
@@ -860,9 +845,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidParseInvalidTokenTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test correct diagnostic produced - invalid token
Consumer->setExpected(diag::err_hlsl_invalid_token);
@@ -882,9 +865,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidParseUnexpectedEndOfStreamTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test correct diagnostic produced - expected '(' after DescriptorTable
Consumer->setExpected(diag::err_expected_after);
@@ -909,9 +890,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidMissingDTParameterTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test correct diagnostic produced
Consumer->setExpected(diag::err_hlsl_rootsig_missing_param);
@@ -933,9 +912,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidMissingRDParameterTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test correct diagnostic produced
Consumer->setExpected(diag::err_hlsl_rootsig_missing_param);
@@ -957,9 +934,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidMissingRCParameterTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test correct diagnostic produced
Consumer->setExpected(diag::err_hlsl_rootsig_missing_param);
@@ -983,9 +958,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidRepeatedMandatoryDTParameterTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test correct diagnostic produced
Consumer->setExpected(diag::err_hlsl_rootsig_repeat_param);
@@ -1007,9 +980,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidRepeatedMandatoryRCParameterTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test correct diagnostic produced
Consumer->setExpected(diag::err_hlsl_rootsig_repeat_param);
@@ -1033,9 +1004,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidRepeatedOptionalDTParameterTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test correct diagnostic produced
Consumer->setExpected(diag::err_hlsl_rootsig_repeat_param);
@@ -1061,9 +1030,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidRepeatedOptionalRCParameterTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test correct diagnostic produced
Consumer->setExpected(diag::err_hlsl_rootsig_repeat_param);
@@ -1086,9 +1053,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidLexOverflowedNumberTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test correct diagnostic produced
Consumer->setExpected(diag::err_hlsl_number_literal_overflow);
@@ -1110,9 +1075,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidParseOverflowedNegativeNumberTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test correct diagnostic produced
Consumer->setExpected(diag::err_hlsl_number_literal_overflow);
@@ -1133,9 +1096,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidLexOverflowedFloatTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test correct diagnostic produced
Consumer->setExpected(diag::err_hlsl_number_literal_overflow);
@@ -1156,9 +1117,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidLexNegOverflowedFloatTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test correct diagnostic produced
Consumer->setExpected(diag::err_hlsl_number_literal_overflow);
@@ -1179,9 +1138,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidLexOverflowedDoubleTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test correct diagnostic produced
Consumer->setExpected(diag::err_hlsl_number_literal_overflow);
@@ -1202,9 +1159,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidLexUnderflowFloatTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test correct diagnostic produced
Consumer->setExpected(diag::err_hlsl_number_literal_underflow);
@@ -1228,9 +1183,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidNonZeroFlagsTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Signature, *PP);
// Test correct diagnostic produced
Consumer->setExpected(diag::err_hlsl_rootsig_non_zero_flag);
@@ -1253,9 +1206,7 @@ TEST_F(ParseHLSLRootSignatureTest, InvalidRootElementMissingCommaTest) {
TrivialModuleLoader ModLoader;
auto PP = createPP(Source, ModLoader);
- SmallVector<RootSignatureElement> Elements;
- hlsl::RootSignatureParser Parser(RootSignatureVersion::V1_1, Elements,
- Signature, *PP);
+ hlsl::RootSignatureParser Parser(RootS...
[truncated]
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bogner
approved these changes
Jul 24, 2025
bob80905
approved these changes
Jul 24, 2025
mahesh-attarde
pushed a commit
to mahesh-attarde/llvm-project
that referenced
this pull request
Jul 28, 2025
- this is a clean up from a review comment that we should let the parser own the constructed `RootSignatureElement`s Original comment here: llvm#147115 (comment).
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RootSignatureElementsOriginal comment here: #147115 (comment).