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(combine_reloads): If using reg dying in this insn as reload reg, 

ensure it can't be a secondary output reload reg.

From-SVN: r8584
This commit is contained in:
Richard Kenner 1994-11-30 18:04:48 -05:00
parent a07805c01c
commit 8922eb5b24
1 changed files with 11 additions and 0 deletions
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11
gcc/reload.c
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@ -1382,6 +1382,7 @@ combine_reloads ()
{
int i;
int output_reload = -1;
int secondary_out = -1;
rtx note;
/* Find the output reload; return unless there is exactly one
@ -1525,6 +1526,16 @@ combine_reloads ()
REGNO (XEXP (note, 0)))
&& (HARD_REGNO_NREGS (REGNO (XEXP (note, 0)), reload_outmode[output_reload])
<= HARD_REGNO_NREGS (REGNO (XEXP (note, 0)), GET_MODE (XEXP (note, 0))))
/* Ensure that a secondary or tertiary reload for this output
won't want this register. */
&& ((secondary_out = reload_secondary_out_reload[output_reload]) == -1
|| (! (TEST_HARD_REG_BIT
(reg_class_contents[(int) reload_reg_class[secondary_out]],
REGNO (XEXP (note, 0))))
&& ((secondary_out = reload_secondary_out_reload[secondary_out]) == -1
|| ! (TEST_HARD_REG_BIT
(reg_class_contents[(int) reload_reg_class[secondary_out]],
REGNO (XEXP (note, 0)))))))
&& ! fixed_regs[REGNO (XEXP (note, 0))])
{
reload_reg_rtx[output_reload] = gen_rtx (REG,