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[hsa] Add missing guard in OMP gridification

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2017-10-30  Martin Jambor  <mjambor@suse.cz>

	* omp-grid.c (grid_attempt_target_gridification): Also insert a
	condition whether loop should be executed at all.

From-SVN: r254225
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Martin Jambor 2017-10-30 16:07:20 +01:00 committed by Martin Jambor
parent 932bfa9bc7
commit 791929c91a
2 changed files with 7 additions and 0 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
2017-10-30 Martin Jambor <mjambor@suse.cz>
* omp-grid.c (grid_attempt_target_gridification): Also insert a
condition whether loop should be executed at all.
2017-10-30 Will Schmidt <will_schmidt@vnet.ibm.com>
* config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add support for

2
gcc/omp-grid.c
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@ -1315,6 +1315,7 @@ grid_attempt_target_gridification (gomp_target *target,
n1 = fold_convert (itype, n1);
n2 = fold_convert (itype, n2);
tree cond = fold_build2 (cond_code, boolean_type_node, n1, n2);
tree step
= omp_get_for_step_from_incr (loc, gimple_omp_for_incr (inner_loop, i));
@ -1328,6 +1329,7 @@ grid_attempt_target_gridification (gomp_target *target,
fold_build1 (NEGATE_EXPR, itype, step));
else
t = fold_build2 (TRUNC_DIV_EXPR, itype, t, step);
t = fold_build3 (COND_EXPR, itype, cond, t, build_zero_cst (itype));
if (grid.tiling)
{
if (cond_code == GT_EXPR)