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(choose_reload_regs): Handle SUBREG in reload_earlyclobber

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when matching output reloads for setting reload_when_needed.

From-SVN: r3670
This commit is contained in:
Richard Stallman 1993-03-06 20:09:57 +00:00
parent f75d38a795
commit 210eed9496
1 changed files with 8 additions and 2 deletions
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gcc/reload1.c
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@ -4187,8 +4187,14 @@ choose_reload_regs (insn, avoid_return_reg)
{ {
/* But earlyclobber operands must stay as RELOAD_OTHER. */ /* But earlyclobber operands must stay as RELOAD_OTHER. */
for (i = 0; i < n_earlyclobbers; i++) for (i = 0; i < n_earlyclobbers; i++)
if (rtx_equal_p (reload_out[j], reload_earlyclobbers[i])) {
break; if (GET_CODE (reload_earlyclobbers[i]) == SUBREG
&& reg_overlap_mentioned_for_reload_p (reload_out[j],
SUBREG_REG (reload_earlyclobbers[i])))
break;
if (rtx_equal_p (reload_out[j], reload_earlyclobbers[i]))
break;
}
if (i == n_earlyclobbers) if (i == n_earlyclobbers)
reload_when_needed[j] = RELOAD_FOR_OUTPUT; reload_when_needed[j] = RELOAD_FOR_OUTPUT;
} }