llvm-project

94b15a1e - [mlir][spirv] Add basic support for SPV_EXT_replicated_composites (#147067)

[mlir][spirv] Add basic support for SPV_EXT_replicated_composites (#147067) This patch introduces two new ops to the SPIR-V dialect: - `spirv.EXT.ConstantCompositeReplicate` - `spirv.EXT.SpecConstantCompositeReplicate` These ops represent composite constants and specialization constants, respectively, constructed by replicating a single splat constant across all elements. They correspond to `SPV_EXT_replicated_composites` extension instructions: - `OpConstantCompositeReplicatedEXT` - `OpSpecConstantCompositeReplicatedEXT` No transformation to these new ops has been introduced in this patch. This approach is chosen as per the discussions on RFC https://discourse.llvm.org/t/rfc-basic-support-for-spv-ext-replicated-composites-in-mlir-spir-v-compile-time-constant-lowering-only/86987 --------- Signed-off-by: Mohammadreza Ameri Mahabadian <mohammadreza.amerimahabadian@arm.com>