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re PR target/47543 (ICE: in extract_insn, at recog.c:2109 when building zlib) 

PR middle-end/47543
	* reload.c (find_reloads_address): Handle reg+d address where both
	components are invalid by reloading the entire address.

From-SVN: r169533
This commit is contained in:
Jeff Law 2011-02-02 09:52:21 -07:00 committed by Jeff Law
parent 9dac82c4da
commit 2a737389e4
2 changed files with 16 additions and 3 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2011-02-02 Jeff Law <law@redhat.com>
PR middle-end/47543
* reload.c (find_reloads_address): Handle reg+d address where both
components are invalid by reloading the entire address.
2011-02-02 Sebastian Pop <sebastian.pop@amd.com>
Richard Guenther <rguenther@suse.de>

13
gcc/reload.c
View File

@ -5066,8 +5066,13 @@ find_reloads_address (enum machine_mode mode, rtx *memrefloc, rtx ad,
&& REG_P (XEXP (ad, 0))
&& REGNO (XEXP (ad, 0)) < FIRST_PSEUDO_REGISTER
&& CONST_INT_P (XEXP (ad, 1))
&& regno_ok_for_base_p (REGNO (XEXP (ad, 0)), mode, PLUS,
CONST_INT))
&& (regno_ok_for_base_p (REGNO (XEXP (ad, 0)), mode, PLUS,
CONST_INT)
/* Similarly, if we were to reload the base register and the
mem+offset address is still invalid, then we want to reload
the whole address, not just the base register. */
|| ! maybe_memory_address_addr_space_p
(mode, ad, as, &(XEXP (ad, 0)))))
{
/* Unshare the MEM rtx so we can safely alter it. */
@ -5079,7 +5084,9 @@ find_reloads_address (enum machine_mode mode, rtx *memrefloc, rtx ad,
loc = &XEXP (*loc, 0);
}
if (double_reg_address_ok)
if (double_reg_address_ok
&& regno_ok_for_base_p (REGNO (XEXP (ad, 0)), mode,
PLUS, CONST_INT))
{
/* Unshare the sum as well. */
*loc = ad = copy_rtx (ad);