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Re: naked zero_extracts longer than a word.


Jim Wilson wrote:
> On Mon, 2009-05-11 at 10:52 -0400, Kenneth Zadeck wrote:
>> Would those that know, (or even those that are just generally vocal) be
>> willing to support a change rtl.texi for sign_extract (and by
>> implication, zero_extract) from ...
>> to a version that explicitly prohibits the use of a mode longer than a word?
> 
> Just grepping, I can find one example that currently uses this.  See the
> x86_movdicc_0_m1_se pattern in the i386.md file.  However, I suspect
> this is a bug, and that the pattern should be using TARGET_64.  I don't
> have x86 manuals handy.

Indeed sbbq does not exist on 32-bit targets.

Paolo


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