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Handle 3-arg phi in copy_bb_and_scalar_dependences

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2016-05-31  Tom de Vries  <tom@codesourcery.com>

	PR tree-optimization/69068
	* graphite-isl-ast-to-gimple.c (copy_bb_and_scalar_dependences): Handle
	phis with more than two args.

	* gcc.dg/graphite/pr69068.c: New test.

From-SVN: r236907
This commit is contained in:
Tom de Vries 2016-05-31 07:07:26 +00:00 committed by Tom de Vries
parent cc10916fe1
commit 7a88cc8467
4 changed files with 30 additions and 6 deletions
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6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2016-05-31 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/69068
* graphite-isl-ast-to-gimple.c (copy_bb_and_scalar_dependences): Handle
phis with more than two args.
2016-05-30 Andreas Tobler <andreast@gcc.gnu.org>
* config.gcc: Move hard float support for arm*hf*-*-freebsd* into

11
gcc/graphite-isl-ast-to-gimple.c
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@ -1075,9 +1075,7 @@ bb_contains_loop_close_phi_nodes (basic_block bb)
static bool
bb_contains_loop_phi_nodes (basic_block bb)
{
gcc_assert (EDGE_COUNT (bb->preds) <= 2);
if (bb->preds->length () == 1)
if (EDGE_COUNT (bb->preds) != 2)
return false;
unsigned depth = loop_depth (bb->loop_father);
@ -2480,13 +2478,14 @@ copy_cond_phi_nodes (basic_block bb, basic_block new_bb, vec<tree> iv_map)
gcc_assert (!bb_contains_loop_close_phi_nodes (bb));
/* TODO: Handle cond phi nodes with more than 2 predecessors. */
if (EDGE_COUNT (bb->preds) != 2)
return false;
if (dump_file)
fprintf (dump_file, "[codegen] copying cond phi nodes in bb_%d.\n",
new_bb->index);
/* Cond phi nodes should have exactly two arguments. */
gcc_assert (2 == EDGE_COUNT (bb->preds));
for (gphi_iterator psi = gsi_start_phis (bb); !gsi_end_p (psi);
gsi_next (&psi))
{

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2016-05-31 Tom de Vries <tom@codesourcery.com>
PR tree-optimization/69068
* gcc.dg/graphite/pr69068.c: New test.
2016-05-27 Martin Sebor <msebor@redhat.com>
PR c++/71306

14
gcc/testsuite/gcc.dg/graphite/pr69068.c Normal file
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@ -0,0 +1,14 @@
/* { dg-do compile } */
/* { dg-options "-O1 -fgraphite-identity" } */
int qo;
int zh[2];
void
td (void)
{
int ly, en;
for (ly = 0; ly < 2; ++ly)
for (en = 0; en < 2; ++en)
zh[en] = ((qo == 0) || (((qo * 2) != 0))) ? 1 : -1;
}