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102 lines
2.9 KiB
C
102 lines
2.9 KiB
C
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.txt for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef CEAN_UTIL_H_INCLUDED
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#define CEAN_UTIL_H_INCLUDED
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#if MPSS_VERSION > 33
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#include <source/COIBuffer_source.h>
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#endif
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#include <stdint.h>
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#if MPSS_VERSION <= 33
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// CEAN expression representation
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struct dim_desc {
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int64_t size; // Length of data type
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int64_t lindex; // Lower index
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int64_t lower; // Lower section bound
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int64_t upper; // Upper section bound
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int64_t stride; // Stride
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};
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struct arr_desc {
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int64_t base; // Base address
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int64_t rank; // Rank of array
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dim_desc dim[1];
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};
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#endif
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struct CeanReadDim {
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int64_t count; // The number of elements in this dimension
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int64_t size; // The number of bytes between successive
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// elements in this dimension.
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};
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struct CeanReadRanges {
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void * ptr;
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int64_t current_number; // the number of ranges read
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int64_t range_max_number; // number of contiguous ranges
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int64_t range_size; // size of max contiguous range
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int last_noncont_ind; // size of Dim array
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int64_t init_offset; // offset of 1-st element from array left bound
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CeanReadDim Dim[1];
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};
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// array descriptor length
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#define __arr_desc_length(rank) \
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(sizeof(int64_t) + sizeof(dim_desc) * (rank))
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// returns offset and length of the data to be transferred
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void __arr_data_offset_and_length(const arr_desc *adp,
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int64_t &offset,
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int64_t &length);
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// define if data array described by argument is contiguous one
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bool is_arr_desc_contiguous(const arr_desc *ap);
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// allocate element of CeanReadRanges type initialized
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// to read consequently contiguous ranges described by "ap" argument
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CeanReadRanges * init_read_ranges_arr_desc(const arr_desc *ap);
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// check if ranges described by 1 argument could be transferred into ranges
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// described by 2-nd one
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bool cean_ranges_match(
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CeanReadRanges * read_rng1,
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CeanReadRanges * read_rng2
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);
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// first argument - returned value by call to init_read_ranges_arr_desc.
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// returns true if offset and length of next range is set successfuly.
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// returns false if the ranges is over.
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bool get_next_range(
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CeanReadRanges * read_rng,
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int64_t *offset
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);
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// returns number of transferred bytes
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int64_t cean_get_transf_size(CeanReadRanges * read_rng);
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#if OFFLOAD_DEBUG > 0
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// prints array descriptor contents to stderr
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void __arr_desc_dump(
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const char *spaces,
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const char *name,
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const arr_desc *adp,
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bool dereference);
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#else
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#define __arr_desc_dump(
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spaces,
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name,
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adp,
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dereference)
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#endif // OFFLOAD_DEBUG
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#endif // CEAN_UTIL_H_INCLUDED
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