================
@@ -647,6 +648,40 @@ void SemaHLSL::emitLogicalOperatorFixIt(Expr *LHS, Expr
*RHS,
<< NewFnName << FixItHint::CreateReplacement(FullRange, OS.str());
}
+void SemaHLSL::handleRootSignatureAttr(Decl *D, const ParsedAttr &AL) {
+ if (AL.getNumArgs() != 1)
+ return;
+
+ StringRef Signature;
+ if (!SemaRef.checkStringLiteralArgumentAttr(AL, 0, Signature))
+ return;
+
+ SourceLocation Loc = AL.getArgAsExpr(0)->getExprLoc();
+ // FIXME: pass down below to lexer when fp is supported
+ // llvm::RoundingMode RM = SemaRef.CurFPFeatures.getRoundingMode();
+ SmallVector<hlsl::RootSignatureToken> Tokens;
+ hlsl::RootSignatureLexer Lexer(Signature, Loc, SemaRef.getPreprocessor());
+ if (Lexer.Lex(Tokens))
+ return;
+
+ SmallVector<llvm::hlsl::rootsig::RootElement> Elements;
+ hlsl::RootSignatureParser Parser(Elements, Tokens,
+ SemaRef.getPreprocessor().getDiagnostics());
+ if (Parser.Parse())
----------------
spall wrote:
The parser and lexer were defined/tested in a different PR?
https://github.com/llvm/llvm-project/pull/123985
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