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riscv-gcc-1
Commit 4c3a2649 by Bernd Schmidt Committed by Bernd Schmidt
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Never set reload_override_in for optional reloads. 

From-SVN: r37103
parent 69add2a8
Showing with 7 additions and 0 deletions
gcc/ChangeLog
......@@ -3,6 +3,8 @@
* reload.c (find_reloads): Distinguish "wins" so that we know whether
a given operand won because of a matching constraint or not; then use
that information to compute goal_alternative_matched properly.
* reload1.c (choose_reload_regs): Never set reload_override_in for an
optional reload.
2000-10-28 Neil Booth <neilb@earthling.net>
......
gcc/reload1.c
......@@ -5417,10 +5417,13 @@ choose_reload_regs (chain)
|| (rld[r].out && rld[r].reg_rtx
&& rtx_equal_p (rld[r].out, rld[r].reg_rtx)))
{
if (! rld[r].optional)
{
reload_override_in[r] = last_reg;
reload_inheritance_insn[r]
= reg_reloaded_insn[i];
}
}
else
{
int k;
......@@ -5518,6 +5521,7 @@ choose_reload_regs (chain)
if (reg_overlap_mentioned_for_reload_p (equiv,
reload_earlyclobbers[i]))
{
if (! rld[r].optional)
reload_override_in[r] = equiv;
equiv = 0;
break;
......@@ -5541,6 +5545,7 @@ choose_reload_regs (chain)
case RELOAD_OTHER:
case RELOAD_FOR_INPUT:
case RELOAD_FOR_OPERAND_ADDRESS:
if (! rld[r].optional)
reload_override_in[r] = equiv;
/* Fall through. */
default:
......
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