PR middle-end/19084
PR rtl-optimization/19348
* recog.c (peephole2_optimize): Do global life update if some peephole
decides it doesn't need at least one of its inputs and that change
influences liveness at the start of the basic block.
* basic-block.h (EXECUTE_IF_AND_COMPL_IN_REG_SET): Needs 2 REGSET
arguments instead of 1.
* gcc.dg/20050111-1.c: New test.
* gcc.c-torture/execute/20050111-1.c: New test.
From-SVN: r93639
