[StableHLO][CHLO][NFC] Clarify where CHLO lowering happens (iree-org#…

…13849)

Only some of the lowering passes deal with CHLO ops.

Fixes: iree-org#13803

compiler/src/iree/compiler/InputConversion/StableHLO/LegalizeToLinalgUtils.cpp

@@ -4,7 +4,7 @@
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-// Implements utilities for lowering StableHLO/CHLO dialect to Linalg dialect.
+// Implements utilities for lowering StableHLO dialect to Linalg dialect.
 
 #include "iree/compiler/InputConversion/StableHLO/LegalizeToLinalgUtils.h"
 

compiler/src/iree/compiler/InputConversion/StableHLO/StableHLOToIREEInputDialects.cpp

@@ -4,7 +4,7 @@
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-// Implements IREE-specific logic for lowering StableHLO/CHLO dialects to
+// Implements IREE-specific logic for lowering StableHLO dialect to
 // IREE dialects: Linalg, Arith, Math, Tensor, Util, ML Program, etc.
 
 #include "iree-dialects/Dialect/LinalgExt/IR/LinalgExtDialect.h"

compiler/src/iree/compiler/InputConversion/StableHLO/StableHLOToLinalgPointwise.cpp

@@ -4,7 +4,7 @@
 // See https://llvm.org/LICENSE.txt for license information.
 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 
-// Implements logic for lowering StableHLO/CHLO pointwise ops to Linalg dialect.
+// Implements logic for lowering StableHLO pointwise ops to Linalg dialect.
 // These patterns are separated out to their own file to save on the compilation
 // times, given that we instantiate a large number of class templates here.