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re PR target/8366 ([sparc-sun-solaris2.7] C testsuite failure w/-m64 -fpic -O in execute/loop-2d.c)

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PR optimization/8366
	* config/sparc/sparc.h: (SYMBOLIC_CONST): New macro.
	(GO_IF_LEGITIMATE_ADDRESS): Use it. Reject the form
	PIC+SYMBOLIC_CONST in other modes than Pmode.
	(GO_IF_MODE_DEPENDENT_ADDRESS): Use it. Mark
	the form PIC+SYMBOLIC_CONST as mode dependent.

Co-Authored-By: Richard Henderson <rth@redhat.com>

From-SVN: r64657
This commit is contained in:
Eric Botcazou 2003-03-21 10:46:38 +01:00 committed by Eric Botcazou
parent 30b3f14228
commit 731458a46d
2 changed files with 42 additions and 6 deletions
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10
gcc/ChangeLog
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@ -1,3 +1,13 @@
2003-03-21 Eric Botcazou <ebotcazou@libertysurf.fr>
Richard Henderson <rth@redhat.com>
PR optimization/8366
* config/sparc/sparc.h: (SYMBOLIC_CONST): New macro.
(GO_IF_LEGITIMATE_ADDRESS): Use it. Reject the form
PIC+SYMBOLIC_CONST in other modes than Pmode.
(GO_IF_MODE_DEPENDENT_ADDRESS): Use it. Mark
the form PIC+SYMBOLIC_CONST as mode dependent.
2003-03-21 DJ Delorie <dj@redhat.com>
* config/stormy16/stormy16.c (xstormy16_expand_arith): Make

38
gcc/config/sparc/sparc.h
View File

@ -2180,6 +2180,8 @@ do { \
If you change this, execute "rm explow.o recog.o reload.o". */
#define SYMBOLIC_CONST(X) symbolic_operand (X, VOIDmode)
#define RTX_OK_FOR_BASE_P(X) \
((GET_CODE (X) == REG && REG_OK_FOR_BASE_P (X)) \
|| (GET_CODE (X) == SUBREG \
@ -2213,6 +2215,8 @@ do { \
&& GET_CODE (op1) != REG \
&& GET_CODE (op1) != LO_SUM \
&& GET_CODE (op1) != MEM \
&& (! SYMBOLIC_CONST (op1) \
|| MODE == Pmode) \
&& (GET_CODE (op1) != CONST_INT \
|| SMALL_INT (op1))) \
goto ADDR; \
@ -2300,6 +2304,34 @@ do { \
else if (GET_CODE (X) == CONST_INT && SMALL_INT (X)) \
goto ADDR; \
}
/* Go to LABEL if ADDR (a legitimate address expression)
has an effect that depends on the machine mode it is used for.
In PIC mode,
(mem:HI [%l7+a])
is not equivalent to
(mem:QI [%l7+a]) (mem:QI [%l7+a+1])
because [%l7+a+1] is interpreted as the address of (a+1). */
#define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR, LABEL) \
{ \
if (flag_pic == 1) \
{ \
if (GET_CODE (ADDR) == PLUS) \
{ \
rtx op0 = XEXP (ADDR, 0); \
rtx op1 = XEXP (ADDR, 1); \
if (op0 == pic_offset_table_rtx \
&& SYMBOLIC_CONST (op1)) \
goto LABEL; \
} \
} \
}
/* Try machine-dependent ways of modifying an illegitimate address
to be legitimate. If we find one, return the new, valid address.
@ -2377,12 +2409,6 @@ do { \
} \
/* ??? 64-bit reloads. */ \
} while (0)
/* Go to LABEL if ADDR (a legitimate address expression)
has an effect that depends on the machine mode it is used for.
On the SPARC this is never true. */
#define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL)
/* Specify the machine mode that this machine uses
for the index in the tablejump instruction. */