On Sun, Feb 5, 2012 at 6:27 PM, Steven Bosscher <stevenb....@gmail.com> wrote:
>> PR target/28685 >> * config/i386/i386.c (TARGET_FLAGS_REGNUM): New. >> > > Hmm, how is this (apparently new in 2011) TARGET_FLAGS_REGNUM > different from the older targetm.fixed_condition_code_regs? This is how backend enables the pass, please see gate_compare_elim_after_reload function in gcc/compare-elim.c. FWIW, the value could be anything != INVALID_REGNUM. Uros.
