Another mistake in the vec_perm -> bit_insert change.
Bootstrapped on x86_64-unknown-linux-gnu, testing in progress.
Richard.
2019-05-27 Richard Biener <rguent...@suse.de>
PR middle-end/90610
* match.pd (vec_perm): Avoid clobbering op0 when not generating
a bit-insert.
Index: gcc/match.pd
===================================================================
--- gcc/match.pd (revision 271644)
+++ gcc/match.pd (working copy)
@@ -5453,8 +5453,8 @@ (define_operator_list COND_TERNARY
first vector we only can insert the first elt from
the first vector. */
at = 0;
- ins = fold_read_from_vector (cop0, 0);
- op0 = op1;
+ if ((ins = fold_read_from_vector (cop0, 0)))
+ op0 = op1;
}
else
{
