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re PR tree-optimization/57537 (gcc.dg/vect/slp-widen-mult-half.c generating wrong code on PowerPC64) 

PR tree-optimization/57537
	* tree-vect-patterns.c (vect_recog_widen_mult_pattern): If
	vect_handle_widen_op_by_const, convert oprnd1 to half_type1.

From-SVN: r200000
This commit is contained in:
Jakub Jelinek 2013-06-12 15:01:49 +02:00 committed by Jakub Jelinek
parent a4fa02d1b7
commit bfdeda2cc6
2 changed files with 10 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2013-06-12 Jakub Jelinek <jakub@redhat.com>
PR tree-optimization/57537
* tree-vect-patterns.c (vect_recog_widen_mult_pattern): If
vect_handle_widen_op_by_const, convert oprnd1 to half_type1.
2013-06-12 Richard Biener <rguenther@suse.de> 2013-06-12 Richard Biener <rguenther@suse.de>
* data-streamer.h (streamer_write_char_stream): CSE * data-streamer.h (streamer_write_char_stream): CSE

5
gcc/tree-vect-patterns.c
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@ -640,7 +640,10 @@ vect_recog_widen_mult_pattern (vec<gimple> *stmts,
&& vect_handle_widen_op_by_const (last_stmt, MULT_EXPR, oprnd1, && vect_handle_widen_op_by_const (last_stmt, MULT_EXPR, oprnd1,
&oprnd0, stmts, type, &oprnd0, stmts, type,
&half_type0, def_stmt0)) &half_type0, def_stmt0))
half_type1 = half_type0; {
half_type1 = half_type0;
oprnd1 = fold_convert (half_type1, oprnd1);
}
else else
return NULL; return NULL;
} }