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re PR rtl-optimization/12147 (Wrong code with -O2 in context of reload)

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PR optimization/12147
	* reload1.c (reload_reg_free_p): RELOAD_OTHER conflicts with
	RELOAD_FOR_OPADDR_ADDR.
	(reload_reg_reaches_end_p): RELOAD_FOR_OTHER_ADDRESS register
	might be reused as RELOAD_FOR_OPADDR_ADDR register.

From-SVN: r77003
This commit is contained in:
Ulrich Weigand 2004-01-30 23:10:36 +00:00 committed by Ulrich Weigand
parent a1ddb3556b
commit 808ededc6f
2 changed files with 10 additions and 0 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2004-01-30 Ulrich Weigand <uweigand@de.ibm.com>
PR optimization/12147
* reload1.c (reload_reg_free_p): RELOAD_OTHER conflicts with
RELOAD_FOR_OPADDR_ADDR.
(reload_reg_reaches_end_p): RELOAD_FOR_OTHER_ADDRESS register
might be reused as RELOAD_FOR_OPADDR_ADDR register.
2004-01-30 Jan Hubicka <jh@suse.cz>
* reload.c (get_secondary_mem): Fix updating of

2
gcc/reload1.c
View File

@ -4316,6 +4316,7 @@ reload_reg_free_p (unsigned int regno, int opnum, enum reload_type type)
/* In use for anything means we can't use it for RELOAD_OTHER. */
if (TEST_HARD_REG_BIT (reload_reg_used_in_other_addr, regno)
|| TEST_HARD_REG_BIT (reload_reg_used_in_op_addr, regno)
|| TEST_HARD_REG_BIT (reload_reg_used_in_op_addr_reload, regno)
|| TEST_HARD_REG_BIT (reload_reg_used_in_insn, regno))
return 0;
@ -4494,6 +4495,7 @@ reload_reg_reaches_end_p (unsigned int regno, int opnum, enum reload_type type)
return 0;
return (! TEST_HARD_REG_BIT (reload_reg_used_in_op_addr, regno)
&& ! TEST_HARD_REG_BIT (reload_reg_used_in_op_addr_reload, regno)
&& ! TEST_HARD_REG_BIT (reload_reg_used_in_insn, regno)
&& ! TEST_HARD_REG_BIT (reload_reg_used, regno));