On Fri, Aug 15, 2008 at 7:00 PM, Martin Schindewolf <[EMAIL PROTECTED]> wrote: > Hi all, > > I currently introduce a temporary variable on SSA form but it > does not survive the SSA optimisation passes. (Not even the > simple ones triggered with -O1). Since the temporary variable > is considered to be a gimple register it is not possible to > set a VUSE or VDEF for it. (I tried and it breaks the SSA > properties). Are there any mechanisms to work around this > restriction and set the VDEF/VUSE anyway or is there a way to > tell the SSA optimisers not to touch this variable (or > SSA_NAME)? > Thank you very much for sharing your thoughts!
You need to better explain what you are trying to do. Richard.