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* Update docs to not mention gcse/loadvn and mention memdep andChris Lattner2009-04-251-24/+12
| | | | | | | new stuff. PR3924. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70077 91177308-0d34-0410-b5e6-96231b3b80d8
* Recommit this grammar fix that was backed out along with nocapture.Nick Lewycky2008-12-181-5/+5
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* Temporarily revert r61019, r61030, and r61040. These were breaking LLVM ReleaseBill Wendling2008-12-161-5/+5
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* Introducing nocapture, a parameter attribute for pointers to indicate that theNick Lewycky2008-12-151-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | callee will not introduce any new aliases of that pointer. The attributes had all bits allocated already, so I decided to collapse alignment. Alignment was previously stored as a 16-bit integer from bits 16 to 32 of the attribute, but it was required to be a power of 2. Now it's stored in log2 encoded form in five bits from 16 to 21. That gives us 11 more bits of space. You may have already noticed that you only need four bits to encode a 16-bit power of two, so why five bits? Because the AsmParser accepted 32-bit alignments, even though we couldn't store them (they were silently discarded). Now we can store them in memory, but not in the bitcode. The bitcode format was already storing these as 64-bit VBR integers. So, the bitcode format stays the same, keeping the alignment values stored as 16 bit raw values. There's some hideous code in the reader and writer that deals with this, waiting to be ripped out the moment we run out of bits again and have to replace the parameter attributes table encoding. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61019 91177308-0d34-0410-b5e6-96231b3b80d8
* Clarify the meaning of the NoAlias response. The plan is to refer to this fromNick Lewycky2008-12-141-10/+14
| | | | | | | a future version of LangRef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61010 91177308-0d34-0410-b5e6-96231b3b80d8
* Global replace of yellow W3C "valid HTML/CSS" icons with blue ones.Misha Brukman2008-12-111-2/+2
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* Fix typo.Owen Anderson2007-10-021-1/+1
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* Mention memdep in the AA documentation.Owen Anderson2007-10-021-0/+19
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* It's not necessary to do rounding for alloca operations when the requestedDan Gohman2007-07-181-0/+965
alignment is equal to the stack alignment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8