]>
git.ipfire.org Git - thirdparty/gcc.git/commit - gcc/lra-assigns.c
re PR rtl-optimization/55342 ([LRA,x86] Non-optimal code for simple loop with LRA)
2013-07-05 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/55342
* lra-int.h (lra_subreg_reload_pseudos): New.
* lra.c: Add undoing optional reloads to the block diagram.
(lra_subreg_reload_pseudos): New.
(lra_optional_reload_pseudos): Change comments.
(lra): Init and clear lra_subreg_reload_pseudos. Clear
lra_optional_reload_pseudos after undo transformations.
* lra-assigns.c (pseudo_prefix_title): New.
(lra_setup_reg_renumber): Use it.
(spill_for): Ditto. Check subreg reload pseudos too.
(assign_by_spills): Consider subreg reload pseudos too.
* lra-constraints.c (simplify_operand_subreg): Use
lra_subreg_reload_pseudos instead of lra_optional_reload_pseudos.
(curr_insn_transform): Recognize and do optional reloads.
(undo_optional_reloads): New.
(lra_undo_inheritance): Call undo_optional_reloads.
2013-07-05 Vladimir Makarov <vmakarov@redhat.com>
PR rtl-optimization/55342
* gcc.target/i386/pr55342.c: New.
From-SVN: r200723