On 11-05-24 8:24 PM, Hans-Peter Nilsson wrote:
On Fri, 13 May 2011, Vladimir Makarov wrote:
The following patch solves the problem described on
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48971
The patch was successfully bootstrapped on x86-64 and checked for ppc64, ia64,
i686-linux, i686-apple-darwin, mips, arm, s390x, and sparc with and without
-msoft-float.
Is it ok to submit to the trunk?
2011-05-13 Vladimir Makarov<vmaka...@redhat.com>
PR rtl-optimization/48971
* ira.c (setup_pressure_classes): Don't check register move cost
for classes with one registers. Don't add pressure class if there
is a pressure class with the same available hard registers.
Check contains_reg_of_mode. Fix a typo in collecting
temp_hard_regset. Ignore hard registers not belonging to a class.
It seems this broke cris-elf: PR49154.
Thanks for reporting this. It was a very sensitive change therefore I
checked so many targets (about 10) but apparently not all of them. I'll
look at the CRIS problem tomorrow.
