===================================================================
@@ -590,7 +590,7 @@ lra_hard_reg_substitution (void)
if (GET_CODE (op) == SUBREG && REG_P (SUBREG_REG (op)))
{
lra_assert (REGNO (SUBREG_REG (op)) < FIRST_PSEUDO_REGISTER);
- alter_subreg (id->operand_loc[i], true);
+ alter_subreg (id->operand_loc[i], ! DEBUG_INSN_P (insn));
lra_update_dup (id, i);
insn_change_p = true;
}
===================================================================
@@ -4255,7 +4255,7 @@ update_ebb_live_info (rtx head, rtx tail
curr_insn = prev_insn)
{
prev_insn = PREV_INSN (curr_insn);
- if (! NONDEBUG_INSN_P (curr_insn))
+ if (! INSN_P (curr_insn))
continue;
curr_bb = BLOCK_FOR_INSN (curr_insn);
if (curr_bb != prev_bb)
@@ -4291,6 +4291,8 @@ update_ebb_live_info (rtx head, rtx tail
prev_bb = curr_bb;
bitmap_and (&live_regs, &check_only_regs, DF_LR_OUT (curr_bb));
}
+ if (DEBUG_INSN_P (curr_insn))
+ continue;
curr_id = lra_get_insn_recog_data (curr_insn);
remove_p = false;
if ((set = single_set (curr_insn)) != NULL_RTX && REG_P (SET_DEST (set))
The following patch fixes a failure during x86 bootstrap with Java language. The first bug occurs when we have BB containing only debug insns. LRA before the patch did not update live info correctly during processing EBBs containing such BBs. The second bug was in assigning wrong mode for x86 fp stack register inside subreg in debug insn. The patch was successfully bootstrapped on x86/x86-64. Committed as rev. 190629. 2012-08-23 Vladimir Makarov <vmakarov@redhat.com> * lra-constraints.c (update_ebb_live_info): Process debug insn too. * lra-spills.c (lra_hard_reg_substitution): Call alter_subreg with true only for non-debug insn.