On 01/18/2012 05:41 PM, Andrey Belevantsev wrote:
Hello,
As discussed in Bugzilla, this is the patch implementing Paolo's
suggestion of killing REG_EQUAL/REG_EQUIV notes from df_kill_notes. The
code assumes there is at most one such note per insn. Bootstrapped and
tested on x86-64, ok for trunk?
Andrey
gcc:
2012-01-18 Andrey Belevantsev <a...@ispras.ru>
PR rtl-optimization/51505
* df-problems.c (df_kill_notes): New parameter live. Update comment.
Remove REG_EQUAL/REG_EQUIV notes referring to dead registers.
(df_note_bb_compute): Update the call to df_kill_notes.
testsuite:
2012-01-18 Andrey Belevantsev <a...@ispras.ru>
PR rtl-optimization/51505
* gcc.dg/pr51505.c: New test.
Ok, thanks for working on this.
Paolo
