gcc/gcc49-rh1117799.patch

40 lines
1.5 KiB
Diff

commit ef76edc2e27e49e7e148894948c8dda394b796c1
Author: vmakarov <vmakarov@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Fri Jul 11 17:19:53 2014 +0000
2014-07-11 Vladimir Makarov <vmakarov@redhat.com>
* lra-constraints.c (remove_inheritance_pseudos): Process
destination pseudo too.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@212464 138bc75d-0d04-0410-961f-82ee72b054a4
* gcov-tool.c (gcov_output_files): Fix build error introduced in
diff --git a/gcc/lra-constraints.c b/gcc/lra-constraints.c
index baed7e7..a43f8dc 100644
--- a/gcc/lra-constraints.c
+++ b/gcc/lra-constraints.c
@@ -5697,6 +5697,20 @@ remove_inheritance_pseudos (bitmap remove_pseudos)
SUBREG_REG (SET_SRC (set)) = SET_SRC (prev_set);
else
SET_SRC (set) = SET_SRC (prev_set);
+ /* As we are finishing with processing the insn
+ here, check the destination too as it might
+ inheritance pseudo for another pseudo. */
+ if (bitmap_bit_p (remove_pseudos, dregno)
+ && bitmap_bit_p (&lra_inheritance_pseudos, dregno)
+ && (restore_regno
+ = lra_reg_info[dregno].restore_regno) >= 0)
+ {
+ if (GET_CODE (SET_DEST (set)) == SUBREG)
+ SUBREG_REG (SET_DEST (set))
+ = regno_reg_rtx[restore_regno];
+ else
+ SET_DEST (set) = regno_reg_rtx[restore_regno];
+ }
lra_push_insn_and_update_insn_regno_info (curr_insn);
lra_set_used_insn_alternative_by_uid
(INSN_UID (curr_insn), -1);