On 01/26/2016 09:39 AM, Jakub Jelinek wrote:
PR target/69442
* combine.c (combine_instructions): For REG_EQUAL note with
SET_DEST being ZERO_EXTRACT, also temporarily set SET_DEST
to the underlying register.
* doc/rtl.texi (REG_EQUAL): Document the behavio
Hi!
In the middle of last year, Kugan has defined REG_EQUAL notes even for the
case when SET_DEST of the single set is ZERO_EXTRACT, before that I believe
it has been defined only for REG/SUBREG and STRICT_LOW_PART thereof.
But, like for STRICT_LOW_PART, the REG_EQUAL note describes the whole
cont
