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Re: buglet in rtl.def comments?

From: Jim Wilson <wilson at specifixinc dot com>
To: Doug Evans <dje at transmeta dot com>
Cc: gcc-bugs at gcc dot gnu dot org
Date: Tue, 09 Dec 2003 23:04:44 -0800
Subject: Re: buglet in rtl.def comments?
References: <200312092025.MAA16823@casey.transmeta.com>

Doug Evans wrote:

As I understand it, the numbering of the operands in CODE_LABEL
and NOTE are off by one.
[or maybe there's a real problem but that seems unlikely]

This comes from a patch by Richard Henderson. http://gcc.gnu.org/ml/gcc/2002-08/msg00884.html There were no related changes, just the numbers were changed. So it appears to be a case where Richard didn't realize that the operand counts started at zero.

This is easy to confirm by looking at macros in the rtl.h file. LABEL_NAME is operand 7 not 8. NOTE_LINE_NUMBER is operand 5 not 6.

Since this is trivial to fix, and I don't see any patch from you, I will go ahead and write one and check it in. -- Jim Wilson, GNU Tools Support, http://www.SpecifixInc.com

References:
- buglet in rtl.def comments?
  - From: Doug Evans

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