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/*
* Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
/** \file
* \brief X flag handling routines
*/
#include "flang/ArgParser/xflag.h"
#include <stdbool.h>
/** Does this index correspond to a bitvector (true) or plain value (false) */
bool
is_xflag_bitvector(int index)
{
switch (index) {
case 9: /* max cnt for unroller */
case 10: /* # of times to unroll */
case 16: /* lower bound loop iter count for vectorizer */
case 27: /* default/max overlap size */
case 30: /* lower limit on iteration count */
case 31: /* lower limit on strip size */
case 32: /* cache size */
case 33: /* upper limit on strip size in complex-vector loops */
case 35: /* max iteration count */
case 38: /* MAXVPUS */
case 40: /* # array loads/stores */
case 41: /* # fp operations */
case 43: /* # CPUs */
case 44: /* min parallel loop count */
case 64: /* code straightening optimizations */
case 79: /* CSE of DP loads: distance threshold */
case 100: /* break blocks */
case 101: /* ST processor SI information */
case 105: /* upper limit on unrolling with unroll & jam */
case 106: /* set unroll factor for scalar unroll & jam */
case 130: /* Levels of VLIW scheduling */
case 131: /* Levels of predication */
case 133: /* VLIW density */
case 134: /* register stall limit */
case 138: /* Limit of the #of prefetches for a loop */
case 139: /* Limit of #vili for vectorizing single precision loop */
case 140: /* Limit of #vili for vectorizing double precision loop */
case 157: /* count for unroller for multiblock loops */
case 160: /* nest level for intensity count */
case 181: /* 3D tile size */
case 188: /* openacc default vector length */
case 199: /* max blocks in loop to be fused */
case 249: /* LLVM version number */
return false;
default:
break;
}
return true;
}
/** Set a value for and x-flag */
void
set_xflag_value(int *xflags, int index, int value)
{
if (is_xflag_bitvector(index))
xflags[index] |= value;
else
xflags[index] = value;
}
/** Clear value for and x-flag */
void
unset_xflag_value(int *xflags, int index, int value)
{
if (is_xflag_bitvector(index))
xflags[index] &= ~value;
else
xflags[index] = 0;
}
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