More help needed on gcc

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Article #52426

#52426

From: Michael Gersten
Date: Fri, 18 Sep 1992 23:08

25 lines
1374 bytes

No answers yet, but I'm plugging along.

For named pattern generation, how do I specify a constraint  
corresponding to an rtx of (mem (plus (reg X) (const_int Y)))?

I can handle constraints of just (reg X) ('r'), and I can handle  
it on non-named patterns (where I can force the match to be

(mem (plus (match_operand 'r') (match_operand('i))))

but that won't work with the named patterns because it wants to  
supply the two parts as a single operand.

Ideas? Do I just use the less efficient (reg only) method for  
the named patterns?

		Michael

(Still trying to figure out how to handle things like  
'everything but this one addressing mode (mem(plus(reg)(reg)))'  
constraints)
--
		Michael Gersten		michael@stb.info.com
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From: michael@stb.INfo.COM (Michael Gersten)
Subject: More help needed on gcc
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Date: Fri, 18 Sep 1992 23:08:00 GMT
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