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tree-ssa-dom.c (degenerate_phi_result): Check for NULL phi argument earlier. 

* tree-ssa-dom.c (degenerate_phi_result): Check for NULL phi
        argument earlier.

From-SVN: r155030
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Richard Henderson 2009-12-06 16:52:55 -08:00 committed by Richard Henderson
parent 98c73b2d4d
commit 434907bc5d
2 changed files with 7 additions and 0 deletions
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gcc/ChangeLog
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@ -1,3 +1,8 @@
2009-12-06 Richard Henderson <rth@redhat.com>
* tree-ssa-dom.c (degenerate_phi_result): Check for NULL phi
argument earlier.
2009-12-04 Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
Backport from mainline:

2
gcc/tree-ssa-dom.c
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@ -2491,6 +2491,8 @@ degenerate_phi_result (gimple phi)
if (arg == lhs)
continue;
else if (!arg)
break;
else if (!val)
val = arg;
else if (!operand_equal_p (arg, val, 0))