45c165b917
We should overall stop using these, but the uppercase name didn't work. Any feature string is converted to lowercase, so these could never be found in the table. llvm-svn: 357541
64 lines
2.1 KiB
TableGen
64 lines
2.1 KiB
TableGen
//===-- AMDGPUFeatures.td - AMDGPU Feature Definitions -----*- tablegen -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
def FeatureFP64 : SubtargetFeature<"fp64",
|
|
"FP64",
|
|
"true",
|
|
"Enable double precision operations"
|
|
>;
|
|
|
|
def FeatureFMA : SubtargetFeature<"fmaf",
|
|
"FMA",
|
|
"true",
|
|
"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",
|
|
"FP32Denormals",
|
|
"true",
|
|
"Enable single precision denormal handling"
|
|
>;
|
|
|
|
class SubtargetFeatureLocalMemorySize <int Value> : SubtargetFeature<
|
|
"localmemorysize"#Value,
|
|
"LocalMemorySize",
|
|
!cast<string>(Value),
|
|
"The size of local memory in bytes"
|
|
>;
|
|
|
|
def FeatureLocalMemorySize0 : SubtargetFeatureLocalMemorySize<0>;
|
|
def FeatureLocalMemorySize32768 : SubtargetFeatureLocalMemorySize<32768>;
|
|
def FeatureLocalMemorySize65536 : SubtargetFeatureLocalMemorySize<65536>;
|
|
|
|
class SubtargetFeatureWavefrontSize <int Value> : SubtargetFeature<
|
|
"wavefrontsize"#Value,
|
|
"WavefrontSize",
|
|
!cast<string>(Value),
|
|
"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",
|
|
"EnablePromoteAlloca",
|
|
"true",
|
|
"Enable promote alloca pass"
|
|
>;
|
|
|