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From: Simon Marchi <simark@simark.ca>
To: Tom Tromey <tom@tromey.com>, gdb-patches@sourceware.org
Subject: Re: [PATCH 04/20] Change some uses of DW_STRING to string method
Date: Mon, 30 Mar 2020 10:56:58 -0400	[thread overview]
Message-ID: <de7f5b91-5043-549d-9367-c5b2627ad6b8@simark.ca> (raw)
In-Reply-To: <20200328192208.11324-5-tom@tromey.com>

On 2020-03-28 3:21 p.m., Tom Tromey wrote:
> @@ -21247,25 +21247,25 @@ dwarf2_name (struct die_info *die, struct dwarf2_cu *cu)
>  	 structures or unions.  These were of the form "._%d" in GCC 4.1,
>  	 or simply "<anonymous struct>" or "<anonymous union>" in GCC 4.3
>  	 and GCC 4.4.  We work around this problem by ignoring these.  */
> -      if (attr && DW_STRING (attr)
> -	  && (startswith (DW_STRING (attr), "._")
> -	      || startswith (DW_STRING (attr), "<anonymous")))
> +      if (attr && attr->string ()
> +	  && (startswith (attr->string (), "._")
> +	      || startswith (attr->string (), "<anonymous")))

In cases like this, I think it would be worth assigning the result of attr->string
to a local variable, to avoid paying the cost of the check multiple times
unnecessarily.

But otherwise, this LGTM.

Simon


  reply	other threads:[~2020-03-30 14:56 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-28 19:21 [PATCH 00/20] Make DWARF attribute references safe Tom Tromey
2020-03-28 19:21 ` [PATCH 01/20] Add attribute::value_as_string method Tom Tromey
2020-03-28 19:21 ` [PATCH 02/20] Rename struct attribute accessors Tom Tromey
2020-03-30  8:58   ` Aktemur, Tankut Baris
2020-03-30 23:39     ` Tom Tromey
2020-03-30 14:45   ` Simon Marchi
2020-03-30 23:39     ` Tom Tromey
2020-03-28 19:21 ` [PATCH 03/20] Avoid using DW_* macros in dwarf2/attribute.c Tom Tromey
2020-03-28 19:21 ` [PATCH 04/20] Change some uses of DW_STRING to string method Tom Tromey
2020-03-30 14:56   ` Simon Marchi [this message]
2020-03-30 23:53     ` Tom Tromey
2020-03-28 19:21 ` [PATCH 05/20] Remove some uses of DW_STRING_IS_CANONICAL Tom Tromey
2020-03-30 15:02   ` Simon Marchi
2020-03-31  0:01     ` Tom Tromey
2020-03-28 19:21 ` [PATCH 06/20] Remove DW_STRING and DW_STRING_IS_CANONICAL Tom Tromey
2020-03-30 15:10   ` Simon Marchi
2020-03-31  0:23     ` Tom Tromey
2020-03-28 19:21 ` [PATCH 07/20] Remove DW_BLOCK Tom Tromey
2020-03-30 15:13   ` Simon Marchi
2020-03-28 19:21 ` [PATCH 08/20] Remove DW_SIGNATURE Tom Tromey
2020-03-28 19:21 ` [PATCH 09/20] Remove DW_SND Tom Tromey
2020-03-28 19:21 ` [PATCH 10/20] Use setter for attribute's unsigned value Tom Tromey
2020-03-28 19:21 ` [PATCH 11/20] Add reprocessing flag to struct attribute Tom Tromey
2020-03-30 15:32   ` Simon Marchi
2020-04-04 14:02     ` Tom Tromey
2020-03-28 19:22 ` [PATCH 12/20] Remove DW_ADDR Tom Tromey
2020-03-30 15:40   ` Simon Marchi
2020-04-04 14:05     ` Tom Tromey
2020-03-28 19:22 ` [PATCH 13/20] Change how reprocessing is done Tom Tromey
2020-03-30 15:46   ` Simon Marchi
2020-04-04 14:14     ` Tom Tromey
2020-03-28 19:22 ` [PATCH 14/20] Change how accessibility is handled in dwarf2/read.c Tom Tromey
2020-03-30 15:50   ` Simon Marchi
2020-03-28 19:22 ` [PATCH 15/20] Add attribute::get_unsigned method Tom Tromey
2020-03-30 15:57   ` Simon Marchi
2020-04-04 14:17     ` Tom Tromey
2020-03-28 19:22 ` [PATCH 16/20] Change is_valid_DW_AT_defaulted to a method on attribute Tom Tromey
2020-03-30 16:00   ` Simon Marchi
2020-04-04 14:23     ` Tom Tromey
2020-03-28 19:22 ` [PATCH 17/20] Change die_info methods to check the attribute's form Tom Tromey
2020-03-30 16:02   ` Simon Marchi
2020-03-30 19:04     ` Tom Tromey
2020-03-30 20:18       ` Simon Marchi
2020-03-30 20:26         ` Tom Tromey
2020-03-28 19:22 ` [PATCH 18/20] Add attribute::virtuality method Tom Tromey
2020-03-28 19:22 ` [PATCH 19/20] Add attribute::boolean method Tom Tromey
2020-03-28 19:22 ` [PATCH 20/20] Remove DW_UNSND Tom Tromey

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