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re PR target/36780 (Wrong reload generated for subreg address on SH)

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PR target/36780
	* config/sh/sh.h (GO_IF_LEGITIMATE_ADDRESS): Allow
	(plus (plus (reg) (const_int)) (const_int)) when reload_in_progress.

From-SVN: r137838
This commit is contained in:
Kaz Kojima 2008-07-15 13:06:32 +00:00
parent cb8cc791fd
commit 96c72efecd
2 changed files with 19 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2008-07-15 Kaz Kojima <kkojima@gcc.gnu.org>
PR target/36780
* config/sh/sh.h (GO_IF_LEGITIMATE_ADDRESS): Allow
(plus (plus (reg) (const_int)) (const_int)) when reload_in_progress.
2008-07-15 Andrew Pinski <andrew_pinski@playstation.sony.com>
PR target/31568

13
gcc/config/sh/sh.h
View file

@ -2501,6 +2501,19 @@ struct sh_args {
goto LABEL; \
} \
} \
/* FIXME: This is a temporary hack which should be removed. \
When reload in progress, find_reloads_subreg_address tries to \
make a new reload for some types of address. Unfortunately it \
generates wrong code on SH. See PR36780. The following is to \
avoid this issue. */ \
if (!TARGET_SHMEDIA && reload_in_progress \
&& GET_CODE (X) == PLUS \
&& (GET_MODE_SIZE (MODE) == 4 || GET_MODE_SIZE (MODE) == 8) \
&& GET_CODE (XEXP ((X), 0)) == PLUS \
&& GET_CODE (XEXP (XEXP ((X), 0), 1)) == CONST_INT \
&& BASE_REGISTER_RTX_P (XEXP (XEXP ((X), 0), 0)) \
&& GET_CODE (XEXP ((X), 1)) == CONST_INT) \
goto LABEL; \
}
/* Try machine-dependent ways of modifying an illegitimate address