2014-08-01 09:39:33 +00:00
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2014-07-11 Vladimir Makarov <vmakarov@redhat.com>
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2014-07-24 20:00:22 +00:00
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2014-08-01 09:39:33 +00:00
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* lra-constraints.c (remove_inheritance_pseudos): Process
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destination pseudo too.
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2014-07-24 20:00:22 +00:00
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2014-08-01 09:39:33 +00:00
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--- gcc/lra-constraints.c
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+++ gcc/lra-constraints.c
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2014-07-24 20:00:22 +00:00
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@@ -5697,6 +5697,20 @@ remove_inheritance_pseudos (bitmap remove_pseudos)
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SUBREG_REG (SET_SRC (set)) = SET_SRC (prev_set);
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else
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SET_SRC (set) = SET_SRC (prev_set);
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+ /* As we are finishing with processing the insn
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+ here, check the destination too as it might
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+ inheritance pseudo for another pseudo. */
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+ if (bitmap_bit_p (remove_pseudos, dregno)
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+ && bitmap_bit_p (&lra_inheritance_pseudos, dregno)
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+ && (restore_regno
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+ = lra_reg_info[dregno].restore_regno) >= 0)
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+ {
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+ if (GET_CODE (SET_DEST (set)) == SUBREG)
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+ SUBREG_REG (SET_DEST (set))
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+ = regno_reg_rtx[restore_regno];
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+ else
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+ SET_DEST (set) = regno_reg_rtx[restore_regno];
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+ }
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lra_push_insn_and_update_insn_regno_info (curr_insn);
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lra_set_used_insn_alternative_by_uid
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(INSN_UID (curr_insn), -1);
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