On 2015-02-18 12:25 PM, Uros Bizjak wrote:
Hello!
Richard's patch at [1] is needed to fix a bootstrap failure on
alpha-linux-gnu on 4.8 branch. Without the patch, IRA creates
different sequences, depending on the presence of -g option.
One of the many comparison failures is in expr.c, where
-fdebug-compare fails with:
...
2015-02-18 Uros Bizjak <ubiz...@gmail.com>
Backport from mainline
2013-09-08 Richard Sandiford <rdsandif...@googlemail.com>
* ira.c (update_equiv_regs): Only call set_paradoxical_subreg
for non-debug insns.
* lra.c (new_insn_reg): Take the containing insn as a parameter.
Only modify lra_reg_info[].biggest_mode if it's non-debug insn.
(collect_non_operand_hard_regs, add_regs_to_insn_regno_info): Update
accordingly.
testsuite/ChangeLog:
2015-02-18 Uros Bizjak <ubiz...@gmail.com>
Backport from mainline
2013-09-08 Richard Sandiford <rdsandif...@googlemail.com>
* g++.dg/debug/ra1.C: New test.
Patch was bootstrapped and regression tested on 86_64-linux-gnu
{,-m32} and alpha-linux-gnu, where it fixes all bootstrap comparison
failures.
The results are at [3], gfortran failures will be fixed by alias.c
backport, after the bootstrap problem is cured.
OK for branch?
Yes, Uros. Thanks of working on this.
