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Fix GOMP/GOACC_parallel handling in find_func_clobbers

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2015-12-09  Tom de Vries  <tom@codesourcery.com>

	PR tree-optimization/68716
	* tree-ssa-structalias.c (find_func_clobbers): Fix handling of
	BUILT_IN_GOMP_PARALLEL and BUILT_IN_GOACC_PARALLEL.

	* testsuite/libgomp.c/omp-nested-2.c: New test.

From-SVN: r231449
This commit is contained in:
Tom de Vries 2015-12-09 10:13:35 +00:00 committed by Tom de Vries
parent 74fbae9278
commit 76680678a8
4 changed files with 61 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2015-12-09 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/68716
* tree-ssa-structalias.c (find_func_clobbers): Fix handling of
BUILT_IN_GOMP_PARALLEL and BUILT_IN_GOACC_PARALLEL.
2015-12-09 Martin Liska <mliska@suse.cz>
* hash-traits.h (struct typed_delete_remove): New function.

47
gcc/tree-ssa-structalias.c
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@ -5082,7 +5082,52 @@ find_func_clobbers (struct function *fn, gimple *origt)
return;
case BUILT_IN_GOMP_PARALLEL:
case BUILT_IN_GOACC_PARALLEL:
return;
{
unsigned int fnpos, argpos;
switch (DECL_FUNCTION_CODE (decl))
{
case BUILT_IN_GOMP_PARALLEL:
/* __builtin_GOMP_parallel (fn, data, num_threads, flags). */
fnpos = 0;
argpos = 1;
break;
case BUILT_IN_GOACC_PARALLEL:
/* __builtin_GOACC_parallel (device, fn, mapnum, hostaddrs,
sizes, kinds, ...). */
fnpos = 1;
argpos = 3;
break;
default:
gcc_unreachable ();
}
tree fnarg = gimple_call_arg (t, fnpos);
gcc_assert (TREE_CODE (fnarg) == ADDR_EXPR);
tree fndecl = TREE_OPERAND (fnarg, 0);
varinfo_t cfi = get_vi_for_tree (fndecl);
tree arg = gimple_call_arg (t, argpos);
/* Parameter passed by value is used. */
lhs = get_function_part_constraint (fi, fi_uses);
struct constraint_expr *rhsp;
get_constraint_for (arg, &rhsc);
FOR_EACH_VEC_ELT (rhsc, j, rhsp)
process_constraint (new_constraint (lhs, *rhsp));
rhsc.truncate (0);
/* The caller clobbers what the callee does. */
lhs = get_function_part_constraint (fi, fi_clobbers);
rhs = get_function_part_constraint (cfi, fi_clobbers);
process_constraint (new_constraint (lhs, rhs));
/* The caller uses what the callee does. */
lhs = get_function_part_constraint (fi, fi_uses);
rhs = get_function_part_constraint (cfi, fi_uses);
process_constraint (new_constraint (lhs, rhs));
return;
}
/* printf-style functions may have hooks to set pointers to
point to somewhere into the generated string. Leave them
for a later exercise... */

5
libgomp/ChangeLog
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@ -1,3 +1,8 @@
2015-12-09 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/68716
* testsuite/libgomp.c/omp-nested-2.c: New test.
2015-12-02 Thomas Schwinge <thomas@codesourcery.com>
* testsuite/libgomp.oacc-c-c++-common/host_data-2.c: Restrict to

4
libgomp/testsuite/libgomp.c/omp-nested-2.c Normal file
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@ -0,0 +1,4 @@
// { dg-do run }
// { dg-additional-options "-fipa-pta" }
#include "omp-nested-1.c"