[Mlir-commits] [mlir] ba23eed - [MLIR][parser] Add token type and parser methods for forward slashes (#125056)
llvmlistbot at llvm.org
llvmlistbot at llvm.org
Wed May 14 09:33:24 PDT 2025
Author: Andi Drebes
Date: 2025-05-14T09:33:21-07:00
New Revision: ba23eedc68ee1363ae8c31afc0f4b5071779eb0b
URL: https://github.com/llvm/llvm-project/commit/ba23eedc68ee1363ae8c31afc0f4b5071779eb0b
DIFF: https://github.com/llvm/llvm-project/commit/ba23eedc68ee1363ae8c31afc0f4b5071779eb0b.diff
LOG: [MLIR][parser] Add token type and parser methods for forward slashes (#125056)
This adds a token for a forward slash to the token definition list and
the methods to `AsmParser::parseSlash()` and
`AsmParser::parseOptionalSlash()`, similar to other tokens used as
operators (e.g., star, plus, etc.). This allows implementations of
attributes that contain arithmetic expressions to support operators with
a forward slash, e.g., a division.
The newly added check tests trigger the parsing of a slash in an
attribute.
Added:
Modified:
mlir/include/mlir/IR/OpImplementation.h
mlir/lib/AsmParser/AsmParserImpl.h
mlir/lib/AsmParser/Lexer.cpp
mlir/lib/AsmParser/TokenKinds.def
mlir/test/IR/parser.mlir
mlir/test/lib/Dialect/Test/TestAttrDefs.td
mlir/test/lib/Dialect/Test/TestAttributes.cpp
mlir/test/lib/Dialect/Test/TestOps.td
Removed:
################################################################################
diff --git a/mlir/include/mlir/IR/OpImplementation.h b/mlir/include/mlir/IR/OpImplementation.h
index 6efad01dec4cc..8b56d81c8eecc 100644
--- a/mlir/include/mlir/IR/OpImplementation.h
+++ b/mlir/include/mlir/IR/OpImplementation.h
@@ -656,6 +656,12 @@ class AsmParser {
/// Parse a '+' token if present.
virtual ParseResult parseOptionalPlus() = 0;
+ /// Parse a '/' token.
+ virtual ParseResult parseSlash() = 0;
+
+ /// Parse a '/' token if present.
+ virtual ParseResult parseOptionalSlash() = 0;
+
/// Parse a '-' token.
virtual ParseResult parseMinus() = 0;
diff --git a/mlir/lib/AsmParser/AsmParserImpl.h b/mlir/lib/AsmParser/AsmParserImpl.h
index 1f8fbfdd93568..eec2702cba343 100644
--- a/mlir/lib/AsmParser/AsmParserImpl.h
+++ b/mlir/lib/AsmParser/AsmParserImpl.h
@@ -206,6 +206,16 @@ class AsmParserImpl : public BaseT {
return success(parser.consumeIf(Token::question));
}
+ /// Parses a '/' token.
+ ParseResult parseSlash() override {
+ return parser.parseToken(Token::slash, "expected '/'");
+ }
+
+ /// Parses a '/' if present.
+ ParseResult parseOptionalSlash() override {
+ return success(parser.consumeIf(Token::slash));
+ }
+
/// Parses a '*' token.
ParseResult parseStar() override {
return parser.parseToken(Token::star, "expected '*'");
diff --git a/mlir/lib/AsmParser/Lexer.cpp b/mlir/lib/AsmParser/Lexer.cpp
index b4189181a8495..751bd63e537f8 100644
--- a/mlir/lib/AsmParser/Lexer.cpp
+++ b/mlir/lib/AsmParser/Lexer.cpp
@@ -157,7 +157,7 @@ Token Lexer::lexToken() {
skipComment();
continue;
}
- return emitError(tokStart, "unexpected character");
+ return formToken(Token::slash, tokStart);
case '@':
return lexAtIdentifier(tokStart);
diff --git a/mlir/lib/AsmParser/TokenKinds.def b/mlir/lib/AsmParser/TokenKinds.def
index 49da8c3dea5fa..fe7c53753e156 100644
--- a/mlir/lib/AsmParser/TokenKinds.def
+++ b/mlir/lib/AsmParser/TokenKinds.def
@@ -70,6 +70,7 @@ TOK_PUNCTUATION(question, "?")
TOK_PUNCTUATION(r_brace, "}")
TOK_PUNCTUATION(r_paren, ")")
TOK_PUNCTUATION(r_square, "]")
+TOK_PUNCTUATION(slash, "/")
TOK_PUNCTUATION(star, "*")
TOK_PUNCTUATION(vertical_bar, "|")
diff --git a/mlir/test/IR/parser.mlir b/mlir/test/IR/parser.mlir
index bb19cb63b65a5..3bb6e38b4d613 100644
--- a/mlir/test/IR/parser.mlir
+++ b/mlir/test/IR/parser.mlir
@@ -1232,6 +1232,13 @@ func.func @parse_base64_test() {
return
}
+// CHECK-LABEL: func @parse_slash_test
+func.func @parse_slash_test() {
+ // CHECK: "test.slash_attr"() <{attr = #test.slash_attr<1 / 2>}> : () -> ()
+ "test.slash_attr"() { attr = #test.slash_attr<1 / 2> } : () -> ()
+ return
+}
+
// CHECK-LABEL: func @"\22_string_symbol_reference\22"
func.func @"\"_string_symbol_reference\""() {
// CHECK: ref = @"\22_string_symbol_reference\22"
diff --git a/mlir/test/lib/Dialect/Test/TestAttrDefs.td b/mlir/test/lib/Dialect/Test/TestAttrDefs.td
index d42f469c39c69..4d825e2f0a8cc 100644
--- a/mlir/test/lib/Dialect/Test/TestAttrDefs.td
+++ b/mlir/test/lib/Dialect/Test/TestAttrDefs.td
@@ -418,4 +418,17 @@ def TestOpAsmAttrInterfaceTablegenDefaultAttr : Test_Attr<"TestOpAsmAttrInterfac
let genMnemonicAlias = 1;
}
+// Test attribute containing a slash token
+def SlashAttr: Test_Attr<"Slash">{
+ let mnemonic = "slash_attr";
+
+ let parameters = (
+ ins
+ "int":$lhs,
+ "int":$rhs
+ );
+
+ let hasCustomAssemblyFormat = 1;
+}
+
#endif // TEST_ATTRDEFS
diff --git a/mlir/test/lib/Dialect/Test/TestAttributes.cpp b/mlir/test/lib/Dialect/Test/TestAttributes.cpp
index b36f246b83d76..80661e68754ce 100644
--- a/mlir/test/lib/Dialect/Test/TestAttributes.cpp
+++ b/mlir/test/lib/Dialect/Test/TestAttributes.cpp
@@ -497,6 +497,24 @@ getDynamicCustomAssemblyFormatAttr(TestDialect *testDialect) {
std::move(parser), std::move(printer));
}
+//===----------------------------------------------------------------------===//
+// SlashAttr
+//===----------------------------------------------------------------------===//
+
+Attribute SlashAttr::parse(AsmParser &parser, Type type) {
+ int lhs, rhs;
+
+ if (parser.parseLess() || parser.parseInteger(lhs) || parser.parseSlash() ||
+ parser.parseInteger(rhs) || parser.parseGreater())
+ return Attribute();
+
+ return SlashAttr::get(parser.getContext(), lhs, rhs);
+}
+
+void SlashAttr::print(AsmPrinter &printer) const {
+ printer << "<" << getLhs() << " / " << getRhs() << ">";
+}
+
//===----------------------------------------------------------------------===//
// TestDialect
//===----------------------------------------------------------------------===//
diff --git a/mlir/test/lib/Dialect/Test/TestOps.td b/mlir/test/lib/Dialect/Test/TestOps.td
index 4848e232472f0..43a0bdaf86cf3 100644
--- a/mlir/test/lib/Dialect/Test/TestOps.td
+++ b/mlir/test/lib/Dialect/Test/TestOps.td
@@ -324,6 +324,10 @@ def DenseArrayAttrOp : TEST_Op<"dense_array_attr"> {
}];
}
+def SlashAttrOp : TEST_Op<"slash_attr"> {
+ let arguments = (ins SlashAttr:$attr);
+}
+
//===----------------------------------------------------------------------===//
// Test Attributes Constraints
//===----------------------------------------------------------------------===//
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