6c0399378e
This patch implements three pieces of functionality:
(1) Adjust array section mapping to have standards conforming behavior,
mapping array sections should *NOT* also map the base-pointer:
struct S { int *ptr; ... };
struct S s;
Instead of generating this during gimplify:
map(to:*_1 [len: 400]) map(attach:s.ptr [bias: 0])
Now, adjust to:
(i.e. do not map the base-pointer together. The attach operation is still
generated, and if s.ptr is already mapped prior, attachment will happen)
The correct way of achieving the base-pointer-also-mapped behavior would be to
use:
(A small Fortran front-end patch to trans-openmp.c:gfc_trans_omp_array_section
is also included, which removes generation of a GOMP_MAP_ALWAYS_POINTER for
array types, which appears incorrect and causes a regression in
libgomp.fortranlibgomp.fortran/struct-elem-map-1.f90)
(2) Related to the first item above, are fixes in libgomp/target.c to not
overwrite attached pointers when handling device<->host copies, mainly for the
"always" case.
(3) The third is a set of changes to the C/C++ front-ends to extend the allowed
component access syntax in map clauses. These changes are enabled for both
OpenACC and OpenMP.
gcc/c/ChangeLog:
* c-parser.c (struct omp_dim): New struct type for use inside
c_parser_omp_variable_list.
(c_parser_omp_variable_list): Allow multiple levels of array and
component accesses in array section base-pointer expression.
(c_parser_omp_clause_to): Set 'allow_deref' to true in call to
c_parser_omp_var_list_parens.
(c_parser_omp_clause_from): Likewise.
* c-typeck.c (handle_omp_array_sections_1): Extend allowed range
of base-pointer expressions involving INDIRECT/MEM/ARRAY_REF and
POINTER_PLUS_EXPR.
(c_finish_omp_clauses): Extend allowed ranged of expressions
involving INDIRECT/MEM/ARRAY_REF and POINTER_PLUS_EXPR.
gcc/cp/ChangeLog:
* parser.c (struct omp_dim): New struct type for use inside
cp_parser_omp_var_list_no_open.
(cp_parser_omp_var_list_no_open): Allow multiple levels of array and
component accesses in array section base-pointer expression.
(cp_parser_omp_all_clauses): Set 'allow_deref' to true in call to
cp_parser_omp_var_list for to/from clauses.
* semantics.c (handle_omp_array_sections_1): Extend allowed range
of base-pointer expressions involving INDIRECT/MEM/ARRAY_REF and
POINTER_PLUS_EXPR.
(handle_omp_array_sections): Adjust pointer map generation of
references.
(finish_omp_clauses): Extend allowed ranged of expressions
involving INDIRECT/MEM/ARRAY_REF and POINTER_PLUS_EXPR.
gcc/fortran/ChangeLog:
* trans-openmp.c (gfc_trans_omp_array_section): Do not generate
GOMP_MAP_ALWAYS_POINTER map for main array maps of ARRAY_TYPE type.
gcc/ChangeLog:
* gimplify.c (extract_base_bit_offset): Add 'tree *offsetp' parameter,
accomodate case where 'offset' return of get_inner_reference is
non-NULL.
(is_or_contains_p): Further robustify conditions.
(omp_target_reorder_clauses): In alloc/to/from sorting phase, also
move following GOMP_MAP_ALWAYS_POINTER maps along. Add new sorting
phase where we make sure pointers with an attach/detach map are ordered
correctly.
(gimplify_scan_omp_clauses): Add modifications to avoid creating
GOMP_MAP_STRUCT and associated alloc map for attach/detach maps.
gcc/testsuite/ChangeLog:
* c-c++-common/goacc/deep-copy-arrayofstruct.c: Adjust testcase.
* c-c++-common/gomp/target-enter-data-1.c: New testcase.
* c-c++-common/gomp/target-implicit-map-2.c: New testcase.
libgomp/ChangeLog:
* target.c (gomp_map_vars_existing): Make sure attached pointer is
not overwritten during cross-host/device copying.
(gomp_update): Likewise.
(gomp_exit_data): Likewise.
* testsuite/libgomp.c++/target-11.C: Adjust testcase.
* testsuite/libgomp.c++/target-12.C: Likewise.
* testsuite/libgomp.c++/target-15.C: Likewise.
* testsuite/libgomp.c++/target-16.C: Likewise.
* testsuite/libgomp.c++/target-17.C: Likewise.
* testsuite/libgomp.c++/target-21.C: Likewise.
* testsuite/libgomp.c++/target-23.C: Likewise.
* testsuite/libgomp.c/target-23.c: Likewise.
* testsuite/libgomp.c/target-29.c: Likewise.
* testsuite/libgomp.c-c++-common/target-implicit-map-2.c: New testcase.
171 lines
7.3 KiB
C
171 lines
7.3 KiB
C
#include <omp.h>
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#include <stdlib.h>
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template <typename C, typename I, typename L, typename UC, typename SH>
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struct S { C p[64]; I a; I b[2]; L c[4]; I *d; UC &e; C (&f)[2]; SH (&g)[4]; I *&h; C q[64]; };
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template <typename C, typename I, typename L, typename UC, typename SH>
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__attribute__((noinline, noclone)) void
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foo (S<C, I, L, UC, SH> s)
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{
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int d = omp_get_default_device ();
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int id = omp_get_initial_device ();
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int sep = 1;
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if (d < 0 || d >= omp_get_num_devices ())
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d = id;
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int err;
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#pragma omp target map(tofrom: s.a, s.b, s.c[1:2], s.d, s.d[-2:3], s.e, s.f, s.g[1:2], s.h, s.h[2:3]) map(to: sep) map(from: err)
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{
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err = s.a != 11 || s.b[0] != 12 || s.b[1] != 13;
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err |= s.c[1] != 15 || s.c[2] != 16 || s.d[-2] != 18 || s.d[-1] != 19 || s.d[0] != 20;
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err |= s.e != 21 || s.f[0] != 22 || s.f[1] != 23 || s.g[1] != 25 || s.g[2] != 26;
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err |= s.h[2] != 31 || s.h[3] != 32 || s.h[4] != 33;
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s.a = 35; s.b[0] = 36; s.b[1] = 37;
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s.c[1] = 38; s.c[2] = 39; s.d[-2] = 40; s.d[-1] = 41; s.d[0] = 42;
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s.e = 43; s.f[0] = 44; s.f[1] = 45; s.g[1] = 46; s.g[2] = 47;
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s.h[2] = 48; s.h[3] = 49; s.h[4] = 50;
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sep = 0;
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}
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if (err) abort ();
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err = s.a != 35 || s.b[0] != 36 || s.b[1] != 37;
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err |= s.c[1] != 38 || s.c[2] != 39 || s.d[-2] != 40 || s.d[-1] != 41 || s.d[0] != 42;
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err |= s.e != 43 || s.f[0] != 44 || s.f[1] != 45 || s.g[1] != 46 || s.g[2] != 47;
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err |= s.h[2] != 48 || s.h[3] != 49 || s.h[4] != 50;
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if (err) abort ();
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s.a = 50; s.b[0] = 49; s.b[1] = 48;
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s.c[1] = 47; s.c[2] = 46; s.d[-2] = 45; s.d[-1] = 44; s.d[0] = 43;
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s.e = 42; s.f[0] = 41; s.f[1] = 40; s.g[1] = 39; s.g[2] = 38;
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s.h[2] = 37; s.h[3] = 36; s.h[4] = 35;
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if (sep
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&& (omp_target_is_present (&s.a, d)
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|| omp_target_is_present (s.b, d)
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|| omp_target_is_present (&s.c[1], d)
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|| omp_target_is_present (s.d, d)
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|| omp_target_is_present (&s.d[-2], d)
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|| omp_target_is_present (&s.e, d)
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|| omp_target_is_present (s.f, d)
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|| omp_target_is_present (&s.g[1], d)
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|| omp_target_is_present (&s.h, d)
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|| omp_target_is_present (&s.h[2], d)))
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abort ();
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#pragma omp target data map(alloc: s.a, s.b, s.c[1:2], s.d, s.d[-2:3], s.e, s.f, s.g[1:2], s.h, s.h[2:3])
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{
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if (!omp_target_is_present (&s.a, d)
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|| !omp_target_is_present (s.b, d)
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|| !omp_target_is_present (&s.c[1], d)
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|| !omp_target_is_present (s.d, d)
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|| !omp_target_is_present (&s.d[-2], d)
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|| !omp_target_is_present (&s.e, d)
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|| !omp_target_is_present (s.f, d)
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|| !omp_target_is_present (&s.g[1], d)
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|| !omp_target_is_present (&s.h, d)
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|| !omp_target_is_present (&s.h[2], d))
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abort ();
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#pragma omp target update to(s.a, s.b, s.c[1:2], s.d, s.d[-2:3], s.e, s.f, s.g[1:2], s.h, s.h[2:3])
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#pragma omp target map(alloc: s.a, s.b, s.c[1:2], s.d, s.d[-2:3], s.e, s.f, s.g[1:2], s.h, s.h[2:3]) map(from: err)
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{
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err = s.a != 50 || s.b[0] != 49 || s.b[1] != 48;
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err |= s.c[1] != 47 || s.c[2] != 46 || s.d[-2] != 45 || s.d[-1] != 44 || s.d[0] != 43;
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err |= s.e != 42 || s.f[0] != 41 || s.f[1] != 40 || s.g[1] != 39 || s.g[2] != 38;
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err |= s.h[2] != 37 || s.h[3] != 36 || s.h[4] != 35;
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s.a = 17; s.b[0] = 18; s.b[1] = 19;
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s.c[1] = 20; s.c[2] = 21; s.d[-2] = 22; s.d[-1] = 23; s.d[0] = 24;
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s.e = 25; s.f[0] = 26; s.f[1] = 27; s.g[1] = 28; s.g[2] = 29;
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s.h[2] = 30; s.h[3] = 31; s.h[4] = 32;
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}
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#pragma omp target update from(s.a, s.b, s.c[1:2], s.d, s.d[-2:3], s.e, s.f, s.g[1:2], s.h, s.h[2:3])
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}
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if (sep
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&& (omp_target_is_present (&s.a, d)
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|| omp_target_is_present (s.b, d)
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|| omp_target_is_present (&s.c[1], d)
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|| omp_target_is_present (s.d, d)
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|| omp_target_is_present (&s.d[-2], d)
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|| omp_target_is_present (&s.e, d)
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|| omp_target_is_present (s.f, d)
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|| omp_target_is_present (&s.g[1], d)
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|| omp_target_is_present (&s.h, d)
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|| omp_target_is_present (&s.h[2], d)))
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abort ();
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if (err) abort ();
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err = s.a != 17 || s.b[0] != 18 || s.b[1] != 19;
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err |= s.c[1] != 20 || s.c[2] != 21 || s.d[-2] != 22 || s.d[-1] != 23 || s.d[0] != 24;
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err |= s.e != 25 || s.f[0] != 26 || s.f[1] != 27 || s.g[1] != 28 || s.g[2] != 29;
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err |= s.h[2] != 30 || s.h[3] != 31 || s.h[4] != 32;
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if (err) abort ();
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s.a = 33; s.b[0] = 34; s.b[1] = 35;
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s.c[1] = 36; s.c[2] = 37; s.d[-2] = 38; s.d[-1] = 39; s.d[0] = 40;
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s.e = 41; s.f[0] = 42; s.f[1] = 43; s.g[1] = 44; s.g[2] = 45;
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s.h[2] = 46; s.h[3] = 47; s.h[4] = 48;
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#pragma omp target enter data map(alloc: s.a, s.b, s.c[1:2], s.d, s.d[-2:3], s.e, s.f, s.g[1:2], s.h, s.h[2:3])
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if (!omp_target_is_present (&s.a, d)
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|| !omp_target_is_present (s.b, d)
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|| !omp_target_is_present (&s.c[1], d)
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|| !omp_target_is_present (s.d, d)
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|| !omp_target_is_present (&s.d[-2], d)
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|| !omp_target_is_present (&s.e, d)
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|| !omp_target_is_present (s.f, d)
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|| !omp_target_is_present (&s.g[1], d)
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|| !omp_target_is_present (&s.h, d)
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|| !omp_target_is_present (&s.h[2], d))
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abort ();
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#pragma omp target enter data map(always, to: s.a, s.b, s.c[1:2], s.d, s.d[-2:3], s.e, s.f, s.g[1:2], s.h, s.h[2:3])
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#pragma omp target map(alloc: s.a, s.b, s.c[1:2], s.d, s.d[-2:3], s.e, s.f, s.g[1:2], s.h, s.h[2:3]) map(from: err)
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{
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err = s.a != 33 || s.b[0] != 34 || s.b[1] != 35;
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err |= s.c[1] != 36 || s.c[2] != 37 || s.d[-2] != 38 || s.d[-1] != 39 || s.d[0] != 40;
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err |= s.e != 41 || s.f[0] != 42 || s.f[1] != 43 || s.g[1] != 44 || s.g[2] != 45;
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err |= s.h[2] != 46 || s.h[3] != 47 || s.h[4] != 48;
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s.a = 49; s.b[0] = 48; s.b[1] = 47;
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s.c[1] = 46; s.c[2] = 45; s.d[-2] = 44; s.d[-1] = 43; s.d[0] = 42;
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s.e = 31; s.f[0] = 40; s.f[1] = 39; s.g[1] = 38; s.g[2] = 37;
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s.h[2] = 36; s.h[3] = 35; s.h[4] = 34;
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}
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#pragma omp target exit data map(always, from: s.a, s.b, s.c[1:2], s.d, s.d[-2:3], s.e, s.f, s.g[1:2], s.h, s.h[2:3])
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if (!omp_target_is_present (&s.a, d)
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|| !omp_target_is_present (s.b, d)
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|| !omp_target_is_present (&s.c[1], d)
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|| !omp_target_is_present (s.d, d)
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|| !omp_target_is_present (&s.d[-2], d)
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|| !omp_target_is_present (&s.e, d)
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|| !omp_target_is_present (s.f, d)
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|| !omp_target_is_present (&s.g[1], d)
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|| !omp_target_is_present (&s.h, d)
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|| !omp_target_is_present (&s.h[2], d))
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abort ();
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#pragma omp target exit data map(release: s.a, s.b, s.c[1:2], s.d, s.d[-2:3], s.e, s.f, s.g[1:2], s.h, s.h[2:3])
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if (sep
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&& (omp_target_is_present (&s.a, d)
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|| omp_target_is_present (s.b, d)
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|| omp_target_is_present (&s.c[1], d)
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|| omp_target_is_present (s.d, d)
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|| omp_target_is_present (&s.d[-2], d)
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|| omp_target_is_present (&s.e, d)
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|| omp_target_is_present (s.f, d)
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|| omp_target_is_present (&s.g[1], d)
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|| omp_target_is_present (&s.h, d)
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|| omp_target_is_present (&s.h[2], d)))
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abort ();
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if (err) abort ();
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err = s.a != 49 || s.b[0] != 48 || s.b[1] != 47;
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err |= s.c[1] != 46 || s.c[2] != 45 || s.d[-2] != 44 || s.d[-1] != 43 || s.d[0] != 42;
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err |= s.e != 31 || s.f[0] != 40 || s.f[1] != 39 || s.g[1] != 38 || s.g[2] != 37;
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err |= s.h[2] != 36 || s.h[3] != 35 || s.h[4] != 34;
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if (err) abort ();
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}
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int
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main ()
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{
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int d[3] = { 18, 19, 20 };
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unsigned char e = 21;
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char f[2] = { 22, 23 };
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short g[4] = { 24, 25, 26, 27 };
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int hb[7] = { 28, 29, 30, 31, 32, 33, 34 };
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int *h = hb + 1;
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S<char, int, long, unsigned char, short> s = { {}, 11, { 12, 13 }, { 14, 15, 16, 17 }, d + 2, e, f, g, h, {} };
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foo (s);
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}
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