[Mlir-commits] [mlir] [mlir][ArmSME] Support 4-way widening outer products (PR #79288)

[Benjamin Maxwell]

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@@ -31,6 +31,55 @@ using namespace mlir;
 using namespace mlir::arm_sme;
 
 namespace {
+
+// Common match failure reasons.
+static constexpr StringLiteral
+    MATCH_FAILURE_NO_ACCUMULATOR("no accumulator operand");
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MacDue wrote:

Just an aside/observation: MLIR is not following the LLVM coding standards exactly, it's a mish-mash of Google style + LLVM style (but follows neither exactly), in both new and old code. 

https://github.com/llvm/llvm-project/pull/79288