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Re: Compiler uses a lot of memory for large initialized arrays
- From: "Joseph S. Myers" <joseph at codesourcery dot com>
- To: Ian Lance Taylor <ian at wasabisystems dot com>
- Cc: mark at codesourcery dot com, gcc at gcc dot gnu dot org
- Date: Thu, 2 Dec 2004 16:34:35 +0000 (UTC)
- Subject: Re: Compiler uses a lot of memory for large initialized arrays
- References: <m3wtw0u1i7.fsf@gossamer.airs.com>
On Thu, 2 Dec 2004, Ian Lance Taylor wrote:
> This test case works fine with 2.95.3. Looking into the patches I
> came across this note from you from four years ago:
> http://gcc.gnu.org/ml/gcc-patches/2000-10/msg00937.html
And hopefully you came across the November part of the thread as well: C99
designated initializers allow
int i[10000000] = { 0, 1, 2, 3, 4, 5, /* ... */
9999998, 9999999, [0] = -1 };
which stops optimizing in the simplest way by writing out initializers to
the assembler output before the whole initializer has been parsed.
--
Joseph S. Myers http://www.srcf.ucam.org/~jsm28/gcc/
jsm@polyomino.org.uk (personal mail)
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