re PR tree-optimization/86010 (redundant memset with smaller size not eliminated)

PR tree-optimization/86010 * tree-ssa-dse.c (compute_trims): Fix typo/thinko. From-SVN: r262841

re PR tree-optimization/86010 (redundant memset with smaller size not eliminated)
PR tree-optimization/86010 * tree-ssa-dse.c (compute_trims): Fix typo/thinko. From-SVN: r262841
efae2f50 · Jeff Law · Jeff Law · 9c179c2d · efae2f50 · efae2f50
Commit efae2f50 authored Jul 17, 2018 by Jeff Law Committed by Jeff Law Jul 17, 2018
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gcc/tree-ssa-dse.c
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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
 2018-07-17  Jeff Law  <law@redhat.com>

+	PR tree-optimization/86010
+	* tree-ssa-dse.c (compute_trims): Fix typo/thinko.
+
 	* config/mips/mips.c (vr4130_align_insns): Update for recent
 	changes to label_to_alignment.


--- a/gcc/tree-ssa-dse.c
+++ b/gcc/tree-ssa-dse.c
@@ -260,7 +260,7 @@ compute_trims (ao_ref *ref, sbitmap live, int *trim_head, int *trim_tail,
  /* If more than a word remains, then make sure to keep the
     starting point at least word aligned.  */
  if (last_live - first_live > UNITS_PER_WORD)
-    *trim_head &= (UNITS_PER_WORD - 1);
+    *trim_head &= ~(UNITS_PER_WORD - 1);

  if ((*trim_head || *trim_tail)
      && dump_file && (dump_flags & TDF_DETAILS))