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s390.md ("load_multiple", [...]): Allow only if reload_completed.

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ChangeLog:

	* config/s390/s390.md ("load_multiple", "*load_multiple_di",
	"*load_multiple_si"): Allow only if reload_completed.
	("store_multiple", "*store_multiple_di", "*store_multiple_si"):
	Likewise.

testsuite/ChangeLog:

	* gcc.dg/20040306-1.c: New test.

From-SVN: r79045
This commit is contained in:
Ulrich Weigand 2004-03-07 02:41:53 +00:00 committed by Ulrich Weigand
parent c0bec71b82
commit 22ea6b4f7f
4 changed files with 42 additions and 6 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2004-03-06 Ulrich Weigand <uweigand@de.ibm.com>
* config/s390/s390.md ("load_multiple", "*load_multiple_di",
"*load_multiple_si"): Allow only if reload_completed.
("store_multiple", "*store_multiple_di", "*store_multiple_si"):
Likewise.
2004-03-06 Kazu Hirata <kazu@cs.umass.edu>
* config/vax/vax-protos.h: Add a prototype for

15
gcc/config/s390/s390.md
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@ -1696,12 +1696,15 @@
;
; load_multiple pattern(s).
;
; ??? Due to reload problems with replacing registers inside match_parallel
; we currently support load_multiple/store_multiple only after reload.
;
(define_expand "load_multiple"
[(match_par_dup 3 [(set (match_operand 0 "" "")
(match_operand 1 "" ""))
(use (match_operand 2 "" ""))])]
""
"reload_completed"
{
enum machine_mode mode;
int regno;
@ -1763,7 +1766,7 @@
[(match_parallel 0 "load_multiple_operation"
[(set (match_operand:DI 1 "register_operand" "=r")
(match_operand:DI 2 "s_operand" "QS"))])]
"word_mode == DImode"
"reload_completed && word_mode == DImode"
{
int words = XVECLEN (operands[0], 0);
operands[0] = gen_rtx_REG (DImode, REGNO (operands[1]) + words - 1);
@ -1776,7 +1779,7 @@
[(match_parallel 0 "load_multiple_operation"
[(set (match_operand:SI 1 "register_operand" "=r,r")
(match_operand:SI 2 "s_operand" "Q,S"))])]
""
"reload_completed"
{
int words = XVECLEN (operands[0], 0);
operands[0] = gen_rtx_REG (SImode, REGNO (operands[1]) + words - 1);
@ -1793,7 +1796,7 @@
[(match_par_dup 3 [(set (match_operand 0 "" "")
(match_operand 1 "" ""))
(use (match_operand 2 "" ""))])]
""
"reload_completed"
{
enum machine_mode mode;
int regno;
@ -1857,7 +1860,7 @@
[(match_parallel 0 "store_multiple_operation"
[(set (match_operand:DI 1 "s_operand" "=QS")
(match_operand:DI 2 "register_operand" "r"))])]
"word_mode == DImode"
"reload_completed && word_mode == DImode"
{
int words = XVECLEN (operands[0], 0);
operands[0] = gen_rtx_REG (DImode, REGNO (operands[2]) + words - 1);
@ -1871,7 +1874,7 @@
[(match_parallel 0 "store_multiple_operation"
[(set (match_operand:SI 1 "s_operand" "=Q,S")
(match_operand:SI 2 "register_operand" "r,r"))])]
""
"reload_completed"
{
int words = XVECLEN (operands[0], 0);
operands[0] = gen_rtx_REG (SImode, REGNO (operands[2]) + words - 1);

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2004-03-06 Ulrich Weigand <uweigand@de.ibm.com>
* gcc.dg/20040306-1.c: New test.
2004-03-06 Kazu Hirata <kazu@cs.umass.edu>
* gcc.dg/sibcall-3.c (recurser_void1, recurser_void2): Make

22
gcc/testsuite/gcc.dg/20040306-1.c Normal file
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@ -0,0 +1,22 @@
/* This used to ICE due to a reload bug on s390*. */
/* { dg-do compile } */
/* { dg-options "-O2" } */
typedef struct test
{
unsigned short pad;
unsigned char type[6];
} t;
extern void set (t *a, t *b, t *c, t *d, t *e, t *f, t *g, t *h,
t *i, t *j, t *k, t *l, t *m, t *n, t *o, t *p);
extern void use (t a, t b, t c, t d, t e, t f, t g, t h,
t i, t j, t k, t l, t m, t n, t o, t p);
void test (void)
{
t a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p;
set (&a, &b, &c, &d, &e, &f, &g, &h, &i, &j, &k, &l, &m, &n, &o, &p);
use (a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p);
}