[Bug target/55212] [SH] Switch from IRA to LRA

[olegendo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55212

--- Comment #15 from Oleg Endo <olegendo at gcc dot gnu.org> ---
(In reply to Oleg Endo from comment #14)
> Author: olegendo
> Date: Sat Sep 13 21:32:27 2014
> New Revision: 215246
> 
> URL: https://gcc.gnu.org/viewcvs?rev=215246&root=gcc&view=rev
> Log:
> PR target/55212
> * Apply patch from https://gcc.gnu.org/ml/gcc/2014-04/msg00273.html
> 
> Modified:
>     branches/sh-lra/gcc/lra-constraints.c

Now the build 'make all' for sh-elf c,c++ completes without errors.

New problem:
Compiling newlib 1.20.0 with '-O2 -m2e':

./../../../../../newlib-1.20.0/newlib/libm/math/er_lgamma.c: In function
'__ieee754_lgamma_r':
../../../../../../newlib-1.20.0/newlib/libm/math/er_lgamma.c:309:1: internal
compiler error: Max. number of generated reload insns per insn is achieved (90)

 }
 ^
0x85551c5 lra_constraints(bool)
    ../../gcc-sh-lra/gcc/lra-constraints.c:4145
0x85442bc lra(_IO_FILE*)
    ../../gcc-sh-lra/gcc/lra.c:2206
0x8500df3 do_reload
    ../../gcc-sh-lra/gcc/ira.c:5312
0x8500df3 execute
    ../../gcc-sh-lra/gcc/ira.c:5471
Please submit a full bug report,