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h8300.md (anonymous movhi pattern): Don't move (reg n) to (mem (pre_dec (reg n)) (anonymous movsi pattern): Likewise.

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* h8300.md (anonymous movhi pattern): Don't move (reg n) to
	(mem (pre_dec (reg n))
	(anonymous movsi pattern): Likewise.

From-SVN: r45266
This commit is contained in:
Kazu Hirata 2001-08-29 16:17:25 +00:00 committed by Kazu Hirata
parent af592bf91d
commit 0cb3708d3c
2 changed files with 18 additions and 2 deletions
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6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2001-08-29 Kazu Hirata <kazu@hxi.com>
* h8300.md (anonymous movhi pattern): Don't move (reg n) to
(mem (pre_dec (reg n))
(anonymous movsi pattern): Likewise.
2001-08-29 Kazu Hirata <kazu@hxi.com>
* h8300.h (RETURN_ADDR_RTX): New.

14
gcc/config/h8300/h8300.md
View File

@ -175,7 +175,12 @@
(match_operand:HI 1 "general_operand_src" "I,r>,r,i,m,r"))]
"TARGET_H8300
&& (register_operand (operands[0],HImode)
|| register_operand (operands[1], HImode))"
|| register_operand (operands[1], HImode))
&& !(GET_CODE (operands[0]) == MEM
&& GET_CODE (XEXP (operands[0], 0)) == PRE_DEC
&& GET_CODE (XEXP (XEXP (operands[0], 0), 0)) == REG
&& GET_CODE (operands[1]) == REG
&& REGNO (XEXP (XEXP (operands[0], 0), 0)) == REGNO (operands[1]))"
"@
sub.w %T0,%T0
mov.w %T1,%T0
@ -404,7 +409,12 @@
(match_operand:SI 1 "general_operand_src" "I,r,i,m,r,r,>,I,r,*a"))]
"(TARGET_H8300S || TARGET_H8300H)
&& (register_operand (operands[0], SImode)
|| register_operand (operands[1], SImode))"
|| register_operand (operands[1], SImode))
&& !(GET_CODE (operands[0]) == MEM
&& GET_CODE (XEXP (operands[0], 0)) == PRE_DEC
&& GET_CODE (XEXP (XEXP (operands[0], 0), 0)) == REG
&& GET_CODE (operands[1]) == REG
&& REGNO (XEXP (XEXP (operands[0], 0), 0)) == REGNO (operands[1]))"
"*
{
switch (which_alternative)