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9 Commits

Author SHA1 Message Date
Dan Gohman
6d69ba8a69 Enable rematerialization of constants using AliasAnalysis::pointsToConstantMemory, 
and knowledge of PseudoSourceValues. This unfortunately isn't sufficient to allow
constants to be rematerialized in PIC mode -- the extra indirection is a
complication.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54000 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-25 00:02:30 +00:00
Dan Gohman
2b062994a6 Fix edito in the PseudoSourceValue name list. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53562 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-14 17:45:47 +00:00
Dan Gohman
a54cf17661 Include a frame index in the "fixed stack" pseudo source value 
instead of using the frame index for the SVOffset, which was
inconsistent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53486 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-11 22:44:52 +00:00
Dan Gohman
cfbb2f074d A quick nm audit turned up several fixed tables and objects that were 
marked read-write. Use const so that they can be allocated in a
read-only segment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48800 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-25 21:45:14 +00:00
Dan Gohman
debeeba6ec From Chris' review: fix 80 column violations 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46961 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-11 18:57:43 +00:00
Dan Gohman
3069b87437 Follow Chris' suggestion; change the PseudoSourceValue accessors 
to return pointers instead of references, since this is always what
is needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46857 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-07 18:41:25 +00:00
Dan Gohman
69de1932b3 Re-apply the memory operand changes, with a fix for the static 
initializer problem, a minor tweak to the way the
DAGISelEmitter finds load/store nodes, and a renaming of the
new PseudoSourceValue objects.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46827 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-06 22:27:42 +00:00
Evan Cheng
334dc1f58d Revert 46556 and 46585. Dan please fix the PseudoSourceValue problem and re-commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46623 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-31 21:00:00 +00:00
Dan Gohman
f38dc192dd Add a new PseudoSourceValue class, which will be used to help track 
memory reference information in the backend. Most of this was written by
Florian Brander, cleanup and updating to TOT by me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46556 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-01-30 16:35:31 +00:00