Bug 19986 - [meta-bug] fold missing optimizations (compared to RTL)
[meta-bug] fold missing optimizations (compared to RTL)
Status: NEW
Product: gcc
Classification: Unclassified
Component: middle-end
4.0.0
: P2 enhancement
: ---
Assigned To: Not yet assigned to anyone
: meta-bug, missed-optimization, TREE
Depends on: 14753 14844 19792 20517 25186 25529 25530 14752 14792 14796 15347 15458 15784 15878 17141 19643 20130 20922 21082 23294 23295 23606 23670 23672 23673 24990 52134
Blocks: 19721 19987
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Reported: 2005-02-15 22:07 UTC by Andrew Pinski
Modified: 2012-02-06 19:47 UTC (History)
3 users (show)

See Also:
Host:
Target:
Build:
Known to work:
Known to fail:
Last reconfirmed: 2007-07-01 00:35:18


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Description Andrew Pinski 2005-02-15 22:07:04 UTC
Just a meta-bug for all the missing fold which are missing which are in the RTL version of simplify_*.
Comment 1 Andrew Pinski 2005-02-15 22:14:06 UTC
Confirmed, there might be others which I had forgot.
Comment 2 Andrew Pinski 2005-04-20 17:32:26 UTC
Some mentioned here: <http://gcc.gnu.org/wiki/Simplifications>.
Comment 3 Paolo Bonzini 2006-01-02 19:37:54 UTC
Just for the record, I'm not sure about how much it is worth to have fold perform all the various sorts of shift/and simplifications that combine can do.