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Re: [PATCH] Avoid memory wastage in simplify_replace_rtx


On Sat, 25 Oct 2003, Roger Sayle wrote:

> 2003-10-25  Roger Sayle  <roger@eyesopen.com>
>
> 	* simplify-rtx.c (simplify_replace_rtx): Avoid allocating duplicate
> 	RTL nodes.  If an operator's operands are unchanged, return the
> 	original argument unchanged.

This causes the test

   gcc.c-torture/compile/930621-1.c

to ICE for i386-unknown-netbsdelf1.6.

   /Krister


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