llvm-mirror/lib/Target/AMDGPU/InstCombineTables.td

include "llvm/TableGen/SearchableTable.td"
include "llvm/IR/Intrinsics.td"

def AMDGPUImageDMaskIntrinsicTable : GenericTable {
  let FilterClass = "AMDGPUImageDMaskIntrinsic";
  let Fields = ["Intr"];

  let PrimaryKey = ["Intr"];
  let PrimaryKeyName = "getAMDGPUImageDMaskIntrinsic";
  let PrimaryKeyEarlyOut = 1;
}
InstCombine/AMDGPU: Add dimension-aware image intrinsics to SimplifyDemanded Summary: Use the expanded features of the TableGen generic tables to avoid manually adding the combinatorially exploded set of intrinsics. The getAMDGPUImageDimIntrinsic lookup function is early-out, i.e. non-AMDGPU intrinsics will never look at the underlying table. Use a generic approach for getting the new intrinsic overload to keep the code simple, and make the image dmask handling more generic: - handle non-sampler image loads - handle the case where the set of demanded elements is not a prefix There is some overlap between this code and an optimization that happens in the backend during code generation. They currently complement each other: - only the codegen optimization can generate vec3 loads - only the InstCombine optimization can handle D16 The InstCombine optimization also likely covers more cases since the codegen optimization is fairly ad-hoc. Ideally, we'll remove the optimization in codegen once the infrastructure for vec3 is in place (which will probably take a long time). Modify the test cases to use dimension-aware intrinsics. This makes it easier to see that the test coverage for the new intrinsics is equivalent, and the old style intrinsics will be removed in a follow-up commit anyway. Change-Id: I4b91ea661413d13004956fe4ef7d13d41b8ce3ad Reviewers: arsenm, rampitec, majnemer Subscribers: kzhuravl, wdng, mgorny, yaxunl, dstuttard, tpr, t-tye, llvm-commits Differential Revision: https://reviews.llvm.org/D48165 llvm-svn: 335230 2018-06-21 15:37:31 +02:00			`include "llvm/TableGen/SearchableTable.td"`
			`include "llvm/IR/Intrinsics.td"`

			`def AMDGPUImageDMaskIntrinsicTable : GenericTable {`
			`let FilterClass = "AMDGPUImageDMaskIntrinsic";`
			`let Fields = ["Intr"];`

			`let PrimaryKey = ["Intr"];`
			`let PrimaryKeyName = "getAMDGPUImageDMaskIntrinsic";`
			`let PrimaryKeyEarlyOut = 1;`
			`}`