blob: ea3952c316e4d040f5fc66398783ce54b22f17ff [file] [log] [blame]
//===-- - AMDGPU Feature Definitions -----*- tablegen -*-===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
def FeatureFP64 : SubtargetFeature<"fp64",
"Enable double precision operations"
def FeatureFMA : SubtargetFeature<"fmaf",
"Enable single precision FMA (not as fast as mul+add, but fused)"
// Some instructions do not support denormals despite this flag. Using
// fp32 denormals also causes instructions to run at the double
// precision rate for the device.
def FeatureFP32Denormals : SubtargetFeature<"fp32-denormals",
"Enable single precision denormal handling"
class SubtargetFeatureLocalMemorySize <int Value> : SubtargetFeature<
"The size of local memory in bytes"
def FeatureLocalMemorySize0 : SubtargetFeatureLocalMemorySize<0>;
def FeatureLocalMemorySize32768 : SubtargetFeatureLocalMemorySize<32768>;
def FeatureLocalMemorySize65536 : SubtargetFeatureLocalMemorySize<65536>;
class SubtargetFeatureWavefrontSize <int Value> : SubtargetFeature<
"The number of threads per wavefront"
def FeatureWavefrontSize16 : SubtargetFeatureWavefrontSize<16>;
def FeatureWavefrontSize32 : SubtargetFeatureWavefrontSize<32>;
def FeatureWavefrontSize64 : SubtargetFeatureWavefrontSize<64>;
class SubtargetFeatureGeneration <string Value, string FeatureName,
string Subtarget,
list<SubtargetFeature> Implies> :
SubtargetFeature <FeatureName, "Gen", Subtarget#"::"#Value,
Value#" GPU generation", Implies>;
def FeaturePromoteAlloca : SubtargetFeature <"promote-alloca",
"Enable promote alloca pass"