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reload1.c (eliminate_regs): Test for reg_renumber being allocated before referencing it. 

* reload1.c (eliminate_regs): Test for reg_renumber being allocated
	before referencing it.

From-SVN: r46623
This commit is contained in:
Richard Kenner 2001-10-30 00:19:58 +00:00 committed by Richard Kenner
parent f3597919c5
commit cd7c9015a6
2 changed files with 10 additions and 4 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Mon Oct 29 19:22:07 2001 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* reload1.c (eliminate_regs): Test for reg_renumber being allocated
before referencing it.
2001-10-26 DJ Delorie <dj@redhat.com>
* config/rs6000/sysv4.h (LINK_SPEC): Allow -msdata=none to

9
gcc/reload1.c
View File

@ -2298,8 +2298,8 @@ eliminate_regs (x, mem_mode, insn)
return plus_constant (ep->to_rtx, ep->previous_offset);
}
else if (reg_renumber[regno] < 0 && reg_equiv_constant
&& reg_equiv_constant[regno]
else if (reg_renumber && reg_renumber[regno] < 0
&& reg_equiv_constant && reg_equiv_constant[regno]
&& ! CONSTANT_P (reg_equiv_constant[regno]))
return eliminate_regs (copy_rtx (reg_equiv_constant[regno]),
mem_mode, insn);
@ -2365,7 +2365,7 @@ eliminate_regs (x, mem_mode, insn)
rtx new0 = eliminate_regs (XEXP (x, 0), mem_mode, insn);
rtx new1 = eliminate_regs (XEXP (x, 1), mem_mode, insn);
if (new0 != XEXP (x, 0) || new1 != XEXP (x, 1))
if (reg_renumber && (new0 != XEXP (x, 0) || new1 != XEXP (x, 1)))
{
/* If one side is a PLUS and the other side is a pseudo that
didn't get a hard register but has a reg_equiv_constant,
@ -2473,7 +2473,8 @@ eliminate_regs (x, mem_mode, insn)
{
new = eliminate_regs (XEXP (x, 1), mem_mode, insn);
if (new != XEXP (x, 1))
return gen_rtx_fmt_ee (GET_CODE (x), GET_MODE (x), XEXP (x, 0), new);
return
gen_rtx_fmt_ee (GET_CODE (x), GET_MODE (x), XEXP (x, 0), new);
}
return x;