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re PR tree-optimization/67381 (genmatch does not honor the order of patterns) 

2015-08-31  Richard Biener  <rguenther@suse.de>

	PR middle-end/67381
	* genmatch.c (dt_node::gen_kids): Also treat matches as barrier.

From-SVN: r227344
This commit is contained in:
Richard Biener 2015-08-31 14:00:16 +00:00 committed by Richard Biener
parent 77c028c522
commit 6974662928
2 changed files with 11 additions and 3 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2015-08-31 Richard Biener <rguenther@suse.de>
PR middle-end/67381
* genmatch.c (dt_node::gen_kids): Also treat matches as barrier.
2015-08-31 Marc Glisse <marc.glisse@inria.fr> 2015-08-31 Marc Glisse <marc.glisse@inria.fr>
* match.pd (SIN, COS, TAN, COSH): Reorder for consistency. * match.pd (SIN, COS, TAN, COSH): Reorder for consistency.

9
gcc/genmatch.c
View File

@ -2529,12 +2529,15 @@ dt_node::gen_kids (FILE *f, int indent, bool gimple)
else else
gcc_unreachable (); gcc_unreachable ();
} }
else if (kids[i]->type == dt_node::DT_MATCH else if (kids[i]->type == dt_node::DT_SIMPLIFY)
|| kids[i]->type == dt_node::DT_SIMPLIFY)
others.safe_push (kids[i]); others.safe_push (kids[i]);
else if (kids[i]->type == dt_node::DT_TRUE) else if (kids[i]->type == dt_node::DT_MATCH
|| kids[i]->type == dt_node::DT_TRUE)
{ {
/* A DT_TRUE operand serves as a barrier - generate code now /* A DT_TRUE operand serves as a barrier - generate code now
for what we have collected sofar.
Like DT_TRUE, DT_MATCH serves as a barrier as it can cause
dependent matches to get out-of-order. Generate code now
for what we have collected sofar. */ for what we have collected sofar. */
gen_kids_1 (f, indent, gimple, gimple_exprs, generic_exprs, gen_kids_1 (f, indent, gimple, gimple_exprs, generic_exprs,
fns, generic_fns, preds, others); fns, generic_fns, preds, others);