* RTL templates
@ 2003-12-12 8:42 Petar Penchev
2003-12-16 1:14 ` Jim Wilson
0 siblings, 1 reply; 3+ messages in thread
From: Petar Penchev @ 2003-12-12 8:42 UTC (permalink / raw)
To: gcc
Hi,
Can somebody tell me what is the minal set of RTL templates to be defined in
.md file ?
I tried to compile a program (a program which does nothing), and I have got
:
(insn 18 0 21 (??? bad code 17473
) -1 (nil)
(nil))
I think I get that because my RTL templates are incopmlete, but I am not so
sure.
Any ideas how to fix that are welcome.
Regards
Petar
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: RTL templates
2003-12-12 8:42 RTL templates Petar Penchev
@ 2003-12-16 1:14 ` Jim Wilson
0 siblings, 0 replies; 3+ messages in thread
From: Jim Wilson @ 2003-12-16 1:14 UTC (permalink / raw)
To: Petar Penchev; +Cc: gcc
Petar Penchev wrote:
> Can somebody tell me what is the minal set of RTL templates to be defined in
> .md file ?
There is a list of standard names in the documentation, in the md.texi
file. It doesn't say which ones are required. GCC knows how to
synthesize lots of operations from other operations, and it knows how to
call library routines for unimplemeted arithmetic operations, so I think
the list of required patterns is probably pretty small. move, compare,
branch, call, and maybe a few of the simpler logical/arithmetic
operations like plus. Note that because we can synthesize operations,
and there are multiple ways to synthesize operations, there is no fixed
subset that is required, you just need enough basic operations of the
right kinds so that all other operations can be synthesized.
> I think I get that because my RTL templates are incopmlete, but I am not so
> sure.
> Any ideas how to fix that are welcome.
Debug cc1. Put a breakpoint in make_insn_raw, and figure why you are
getting here with bad rtl.
--
Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com
^ permalink raw reply [flat|nested] 3+ messages in thread
* RE: RTL templates
@ 2003-12-12 8:53 Rakesh Kumar - Software, Noida
0 siblings, 0 replies; 3+ messages in thread
From: Rakesh Kumar - Software, Noida @ 2003-12-12 8:53 UTC (permalink / raw)
To: Petar Penchev, gcc
Would you please give the test case you were compiling for?
The information is incomplete.
You could check for what RTL pass generates. If this is
problem at RTL level, you could hack the tree or see which
particular function generated this insn. These are just suggestions.
You are in a more better position to solve it.
Regards,
Rakesh Kumar
-----Original Message-----
From: Petar Penchev [mailto:ptr@melexis.com]
Sent: Friday, December 12, 2003 2:07 PM
To: gcc@gcc.gnu.org
Subject: RTL templates
Hi,
Can somebody tell me what is the minal set of RTL templates to be defined in
.md file ?
I tried to compile a program (a program which does nothing), and I have got
:
(insn 18 0 21 (??? bad code 17473
) -1 (nil)
(nil))
I think I get that because my RTL templates are incopmlete, but I am not so
sure.
Any ideas how to fix that are welcome.
Regards
Petar
^ permalink raw reply [flat|nested] 3+ messages in thread
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