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tree-phinodes.c (resize_phi_node): Copy only a portion of the PHI node currently in use.

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* tree-phinodes.c (resize_phi_node): Copy only a portion of
	the PHI node currently in use.

From-SVN: r90035
This commit is contained in:
Kazu Hirata 2004-11-03 21:23:54 +00:00 • committed by Kazu Hirata
parent 269b75261a
commit 57f60923b2
2 changed files with 9 additions and 2 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
2004-11-03 Kazu Hirata <kazu@cs.umass.edu>
* tree-phinodes.c (resize_phi_node): Copy only a portion of
the PHI node currently in use.
2004-11-03 Andrew Pinski <pinskia@physics.uc.edu>
PR tree-opt/18231

6
gcc/tree-phinodes.c
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@ -254,9 +254,11 @@ resize_phi_node (tree *phi, int len)
gcc_assert (len >= PHI_ARG_CAPACITY (*phi));
/* Note that OLD_SIZE is guaranteed to be smaller than SIZE. */
/* The garbage collector will not look at the PHI node beyond the
first PHI_NUM_ARGS elements. Therefore, all we have to copy is a
portion of the PHI node currently in use. */
old_size = (sizeof (struct tree_phi_node)
+ (PHI_ARG_CAPACITY (*phi) - 1) * sizeof (struct phi_arg_d));
+ (PHI_NUM_ARGS (*phi) - 1) * sizeof (struct phi_arg_d));
new_phi = allocate_phi_node (len);