Re: [Bug tree-optimization/23382] [4.1 Regression] tree-ssa-alias creates a new virtual variable for malloc each time may_alias is run (HEAP)

Sat, 13 Aug 2005 20:48:27 -0700 


On Aug 13, 2005, at 11:40 PM, dberlin at dberlin dot org wrote:


Uh, so?

We keep the virtual variable around even in the clobbered variables.
Add a function call to an different function like say f so it does
not get GC'd and we keep on adding more and more V_MAY_DEFs:

  #   HEAP.6_36 = V_MAY_DEF <HEAP.6_73>;
  #   HEAP.7_37 = V_MAY_DEF <HEAP.7_71>;
  #   HEAP.8_38 = V_MAY_DEF <HEAP.8_70>;
  #   HEAP.18_78 = V_MAY_DEF <HEAP.18_77>;
  #   HEAP.19_79 = V_MAY_DEF <HEAP.19_14>;
  #   HEAP.20_80 = V_MAY_DEF <HEAP.20_76>;
  g ();


-- Pinski

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