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re PR target/7784 ([Sparc] ICE in extract_insn, at recog.c:2148) 

PR target/7784
	* reload.c (maybe_memory_address_p): New function.
	(find_reloads_address): Use it instead of memory_address_p.

From-SVN: r65020
This commit is contained in:
Ulrich Weigand 2003-03-29 19:30:39 +00:00 committed by Ulrich Weigand
parent 74e99d07c2
commit 7bb1322b18
2 changed files with 30 additions and 2 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2003-03-29 Ulrich Weigand <uweigand@de.ibm.com>
PR target/7784
* reload.c (maybe_memory_address_p): New function.
(find_reloads_address): Use it instead of memory_address_p.
2003-03-29 Alan Modra <amodra@bigpond.net.au>
* config/rs6000/rs6000.h (FUNCTION_VALUE_REGNO_P): Respect

26
gcc/reload.c
View File

@ -257,6 +257,7 @@ static int alternative_allows_memconst PARAMS ((const char *, int));
static rtx find_reloads_toplev PARAMS ((rtx, int, enum reload_type, int,
int, rtx, int *));
static rtx make_memloc PARAMS ((rtx, int));
static int maybe_memory_address_p PARAMS ((enum machine_mode, rtx, rtx *));
static int find_reloads_address PARAMS ((enum machine_mode, rtx *, rtx, rtx *,
int, enum reload_type, int, rtx));
static rtx subst_reg_equivs PARAMS ((rtx, rtx));
@ -4545,6 +4546,27 @@ make_memloc (ad, regno)
return tem;
}
/* Returns true if AD could be turned into a valid memory reference
to mode MODE by reloading the part pointed to by PART into a
register. */
static int
maybe_memory_address_p (mode, ad, part)
enum machine_mode mode;
rtx ad;
rtx *part;
{
int retv;
rtx tem = *part;
rtx reg = gen_rtx_REG (GET_MODE (tem), max_reg_num ());
*part = reg;
retv = memory_address_p (mode, ad);
*part = tem;
return retv;
}
/* Record all reloads needed for handling memory address AD
which appears in *LOC in a memory reference to mode MODE
which itself is found in location *MEMREFLOC.
@ -4842,7 +4864,7 @@ find_reloads_address (mode, memrefloc, ad, loc, opnum, type, ind_levels, insn)
&& GET_CODE (XEXP (XEXP (ad, 0), 0)) == REG
&& REGNO (XEXP (XEXP (ad, 0), 0)) < FIRST_PSEUDO_REGISTER
&& REG_MODE_OK_FOR_BASE_P (XEXP (XEXP (ad, 0), 0), mode)
&& ! memory_address_p (mode, ad))
&& ! maybe_memory_address_p (mode, ad, &XEXP (XEXP (ad, 0), 1)))
{
*loc = ad = gen_rtx_PLUS (GET_MODE (ad),
plus_constant (XEXP (XEXP (ad, 0), 0),
@ -4862,7 +4884,7 @@ find_reloads_address (mode, memrefloc, ad, loc, opnum, type, ind_levels, insn)
&& GET_CODE (XEXP (XEXP (ad, 0), 1)) == REG
&& REGNO (XEXP (XEXP (ad, 0), 1)) < FIRST_PSEUDO_REGISTER
&& REG_MODE_OK_FOR_BASE_P (XEXP (XEXP (ad, 0), 1), mode)
&& ! memory_address_p (mode, ad))
&& ! maybe_memory_address_p (mode, ad, &XEXP (XEXP (ad, 0), 0)))
{
*loc = ad = gen_rtx_PLUS (GET_MODE (ad),
XEXP (XEXP (ad, 0), 0),