https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78378
--- Comment #7 from Jakub Jelinek ---
Author: jakub
Date: Wed Nov 16 23:22:16 2016
New Revision: 242526
URL: https://gcc.gnu.org/viewcvs?rev=242526&root=gcc&view=rev
Log:
PR rtl-optimization/78378
* combine.c (make_extraction): U
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78378
Jakub Jelinek changed:
What|Removed |Added
Status|NEW |ASSIGNED
Assignee|unassigned a
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78378
--- Comment #5 from Jakub Jelinek ---
Scratch that, I've missed there the 8 SUBREG_BYTE. That one is fine.
What is wrong is combine_simplify_rtx turning
(set (reg:SI 99 [ x ])
(and:SI (subreg:SI (truncate:HI (lshiftrt:TI (mult:TI (zero_exten
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78378
--- Comment #4 from Jakub Jelinek ---
So we have:
(insn 6 3 7 2 (parallel [
(set (reg/v:DI 90 [ x ])
(ashift:DI (reg/v:DI 93 [ x ])
(const_int 41 [0x29])))
(clobber (reg:CC 17 flags))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78378
--- Comment #3 from Zdenek Sojka ---
(In reply to Jakub Jelinek from comment #2)
> r163380 still works, r163394 fails, so most likely one of r163383, r163384
> or r163389.
r163383 added the four-insn combinations, and this is what happens in the
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78378
Jakub Jelinek changed:
What|Removed |Added
CC||jakub at gcc dot gnu.org
--- Comment #2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78378
Martin Liška changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78378
Richard Biener changed:
What|Removed |Added
Target Milestone|--- |5.5
