r275993 - in /branches/gcc-7-branch/gcc: Change...

[krebbel@gcc.gnu.org]

Author: krebbel
Date: Fri Sep 20 09:23:50 2019
New Revision: 275993

URL: https://gcc.gnu.org/viewcvs?rev=275993&root=gcc&view=rev
Log:
Fix PR88751
    
This patch implements a small improvement for the heuristic in lra
which decides when it has to activate the simpler register allocation
algorithm.
    
gcc/ChangeLog:

2019-09-20  Andreas Krebbel  <krebbel@linux.ibm.com>

	Backport from mainline
	2019-06-06  Andreas Krebbel  <krebbel@linux.ibm.com>

	PR rtl-optimization/88751
	* ira.c (ira): Use the number of the actually referenced registers
	when calculating the threshold.


Modified:
    branches/gcc-7-branch/gcc/ChangeLog
    branches/gcc-7-branch/gcc/ira.c