Matt Pharr f9463af75b Add WalkAST() function for generic AST walking. ...

For starters, use it for the check to see if code is safe to run with the
mask all off.

This also fixes a bug where we would sometimes incorrectly say that
a whole block of code was unsafe to run with an all off mask because we came
to a NULL AST node during traversal.

2011-12-16 12:24:51 -08:00

8.3 KiB

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