16 Jul 17:04
Re: Question about doloop_end pattern
From: Joern Rennecke <joernr <at> arc.com>
Subject: Re: Question about doloop_end pattern
Newsgroups: gmane.comp.gcc.devel
Date: 2008-07-16 15:04:48 GMT
Subject: Re: Question about doloop_end pattern
Newsgroups: gmane.comp.gcc.devel
Date: 2008-07-16 15:04:48 GMT
I can confirm that the doloop optimization is applied for ARC600 / ARC700
in a compiler based on gcc 4.4.0 20080606 (experimental) .
OTOH, it doesn't use any of the PRE_INC, POST_INC, PRE_MODIFY or
POST_MODIFY addressing modes.
lp .L__GCC__LP2
.align 4
.L2:
add r0,r1,r4
ld r3,[r0]
add r0,r6,r4
add r4,r4,4
add r2,r5,r3
st r2,[r0]
.L__GCC__LP2: ; loop end
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