[Mlir-commits] [mlir] 72619d1 - [mlir][ods] NFC fix tblgen crash with empty assembly format

[llvmlistbot at llvm.org]

Author: Mogball
Date: 2022-02-08T21:13:58Z
New Revision: 72619d101fda15a98b8f406e6009c5da06e3f835

URL: https://github.com/llvm/llvm-project/commit/72619d101fda15a98b8f406e6009c5da06e3f835
DIFF: https://github.com/llvm/llvm-project/commit/72619d101fda15a98b8f406e6009c5da06e3f835.diff

LOG: [mlir][ods] NFC fix tblgen crash with empty assembly format

Added: 
    

Modified: 
    mlir/tools/mlir-tblgen/AttrOrTypeFormatGen.cpp

Removed: 
    


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diff  --git a/mlir/tools/mlir-tblgen/AttrOrTypeFormatGen.cpp b/mlir/tools/mlir-tblgen/AttrOrTypeFormatGen.cpp
index d697ad2b4ea4..2a1fcf936237 100644
--- a/mlir/tools/mlir-tblgen/AttrOrTypeFormatGen.cpp
+++ b/mlir/tools/mlir-tblgen/AttrOrTypeFormatGen.cpp
@@ -812,6 +812,8 @@ LogicalResult DefFormatParser::verify(SMLoc loc,
                                 it.value().getName());
     }
   }
+  if (elements.empty())
+    return success();
   // A `struct` directive that contains optional parameters cannot be followed
   // by a comma literal, which is ambiguous.
   for (auto it : llvm::zip(elements.drop_back(), elements.drop_front())) {