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Author SHA1 Message Date
Dan Gohman
8b7aa3053d Use bool instead of int, now that it no longer evokes a warning. 
llvm-svn: 60678
 2008-12-07 21:33:27 +00:00
Dan Gohman
42bd5cffc9 Use intptr_t instead of unsigned here, which is more appropriate 
in a really obscure way, but more importantly has the side effect
of avoiding a GCC warning in the case that IntType is bool.

llvm-svn: 60677
 2008-12-07 21:28:00 +00:00
Chris Lattner
1ff38d6629 add an assert. the cast<> below would catch this but a message is more 
useful.

llvm-svn: 60674
 2008-12-07 18:45:15 +00:00
Chris Lattner
8cd875dac6 factor some code better. 
llvm-svn: 60673
 2008-12-07 18:42:51 +00:00
Chris Lattner
9ebcc276e4 factor some code, fixing some fixme's. 
llvm-svn: 60672
 2008-12-07 18:39:13 +00:00
Chris Lattner
279bab1c8a fix a typo duncan noticed! 
llvm-svn: 60671
 2008-12-07 18:21:37 +00:00
Oscar Fuentes
3eaab7ff7a CMake: Added Tool.cpp to tools/llvmc/driver. 
llvm-svn: 60670
 2008-12-07 17:01:16 +00:00
Mikhail Glushenkov
63bd106f2c Man page update. 
llvm-svn: 60669
 2008-12-07 16:48:07 +00:00
Mikhail Glushenkov
c1fc4efe85 Describe recent changes in the documentation. 
llvm-svn: 60668
 2008-12-07 16:47:42 +00:00
Mikhail Glushenkov
c75a4df77c Make 'extern' an option property. 
Makes (forward) work better.

llvm-svn: 60667
 2008-12-07 16:47:12 +00:00
Mikhail Glushenkov
bc0bc455b7 Plugin updates: support more options. 
llvm-svn: 60666
 2008-12-07 16:46:23 +00:00
Mikhail Glushenkov
72a5dd4ae6 Join tools couldn't be used in the middle of the toolchain. 
llvm-svn: 60665
 2008-12-07 16:45:37 +00:00
Mikhail Glushenkov
e0c9f63882 Better error message. 
llvm-svn: 60664
 2008-12-07 16:45:12 +00:00
Mikhail Glushenkov
85098f0f90 Re-apply Cedric's changes. 
Use B instead of Beg (for consistency), but NodeA and NodeB instead of A
and B.

llvm-svn: 60663
 2008-12-07 16:44:47 +00:00
Mikhail Glushenkov
a60c58c6dc Add some clarifying comments. 
llvm-svn: 60662
 2008-12-07 16:44:15 +00:00
Mikhail Glushenkov
7a56e66e32 Enable the Clang plugin by default. 
This will eventually replace `ccc`. The command `llvmc -clang` now uses
the Clang toolchain instead of `llvm-gcc`.

llvm-svn: 60661
 2008-12-07 16:43:42 +00:00
Mikhail Glushenkov
53f66e6d9a Update plugins to use (actions). 
llvm-svn: 60660
 2008-12-07 16:43:17 +00:00
Mikhail Glushenkov
4522fd9b8a Try to guess when the auto-generated cl::Sink option should be marked 'extern'. 
This would be much easier to do if the CommandLine library didn't use
global state. Global state is evil.

llvm-svn: 60659
 2008-12-07 16:42:47 +00:00
Mikhail Glushenkov
1348ac2185 Add a (progn)-like construct for (actions). Implemented as a DAG list. 
llvm-svn: 60658
 2008-12-07 16:42:22 +00:00
Mikhail Glushenkov
d676237550 Add tests for tblgen's LLVMC backend. 
llvm-svn: 60657
 2008-12-07 16:41:50 +00:00
Mikhail Glushenkov
f01331152a Use (actions) instead of option properties, support external options. 
Also includes a major refactoring. See documentation for more
information.

llvm-svn: 60656
 2008-12-07 16:41:11 +00:00
Chris Lattner
16ea827dfd add support for caching pointer dependence queries. Nothing uses this yet 
so it "can't" break anything.  That said, it does appear to work.

llvm-svn: 60654
 2008-12-07 08:50:20 +00:00
Chris Lattner
a79a341f1e fix a bug I introduced in simplifycfg handling single entry phi 
nodes. FoldSingleEntryPHINodes deletes the PHI, so there is no
need to delete it afterward.

llvm-svn: 60653
 2008-12-07 07:22:45 +00:00
Owen Anderson
a5f2ce1ee3 Switch to top-down mode and fix a crasher this exposed caused by an error in the 
live interval updating.

llvm-svn: 60652
 2008-12-07 05:33:18 +00:00
Nick Lewycky
e277f75880 Fix typo, psuedo -> pseudo. 
llvm-svn: 60651
 2008-12-07 03:49:52 +00:00
Chris Lattner
35095d7722 Some internal refactoring to make it easier to cache results. 
llvm-svn: 60650
 2008-12-07 02:56:57 +00:00
Chris Lattner
ad82419b46 Introduce a new MemDep::getNonLocalPointerDependency 
method.  This will eventually take over load/store dep
queries from getNonLocalDependency.  For now it works
fine, but is incredibly slow because it does no caching.
Lets not switch GVN to use it until that is fixed :)

llvm-svn: 60649
 2008-12-07 02:15:47 +00:00
Chris Lattner
8e8a6b4ec3 push the "pointer case" up the analysis stack a bit. This causes 
duplication of logic (in 2 places) to determine what pointer a 
load/store touches.  This will be addressed in a future commit.

llvm-svn: 60648
 2008-12-07 01:50:16 +00:00
Chris Lattner
d14e6778c6 make clients have to know how to call getCallSiteDependencyFrom 
instead of making getDependencyFrom do it.

llvm-svn: 60647
 2008-12-07 01:21:14 +00:00
Chris Lattner
ddfcaff37c rename some variables for consistency 
llvm-svn: 60644
 2008-12-07 00:39:19 +00:00
Chris Lattner
e4c5f66b3b I love how using out of scope variables is not an error with GCC, no really I do. 
llvm-svn: 60643
 2008-12-07 00:38:27 +00:00
Chris Lattner
20b7d9667d Rename getCallSiteDependency -> getCallSiteDependencyFrom to 
emphasize the scanning and make it more similar to 
getDependencyFrom
 

llvm-svn: 60642
 2008-12-07 00:35:51 +00:00
Chris Lattner
dc8cf1fa91 a memdep query on a volatile load/store will always return 
clobber with the current implementation.  Instead of returning
a "precise clobber" just return a fuzzy one.  This doesn't 
matter to any clients anyway and should speed up analysis time
very very slightly.

llvm-svn: 60641
 2008-12-07 00:28:02 +00:00
Chris Lattner
135a48d48b don't bother touching volatile stores, they will just return clobber on 
everything interesting anyway.

llvm-svn: 60640
 2008-12-07 00:25:15 +00:00
Chris Lattner
a04521164c remove the ability to get memdep info for vaarg. I don't think the 
original impl was correct and noone actually makes the query anyway.

llvm-svn: 60639
 2008-12-07 00:21:18 +00:00
Chris Lattner
3b71e8da68 make getDependencyFrom private. 
llvm-svn: 60637
 2008-12-07 00:16:50 +00:00
Chris Lattner
bd507e3e4d improve a note. 
llvm-svn: 60636
 2008-12-07 00:15:10 +00:00
Chris Lattner
1fa53e3e56 some more PRE/GVN/DSE related notes. 
llvm-svn: 60633
 2008-12-06 22:52:12 +00:00
Chris Lattner
00104cf8f8 add a note 
llvm-svn: 60632
 2008-12-06 22:49:05 +00:00
Chris Lattner
a87ff83a83 some random notes. 
llvm-svn: 60624
 2008-12-06 19:28:22 +00:00
Nick Lewycky
d33c83b1af Minor cleanup. Use dyn_cast, not isa/cast pairs. No functionality change. 
llvm-svn: 60623
 2008-12-06 17:57:05 +00:00
Evan Cheng
5c92d425a9 Clean up some ARM GV asm printing out; minor fixes to match what gcc does. 
llvm-svn: 60621
 2008-12-06 02:00:55 +00:00
Chris Lattner
022b15083b Reimplement the inner loop of DSE. It now uniformly uses getDependence(), 
doesn't do its own local caching, and is slightly more aggressive about
free/store dse (see testcase).  This eliminates the last external client 
of MemDep::getDependenceFrom().

llvm-svn: 60619
 2008-12-06 00:53:22 +00:00
Dan Gohman
e2ee41d1d1 Don't use plain %x to print pointer values. I had changed it from %p 
since %p isn't formatted consistently, but obviously plain %x is wrong.
PRIxPTR with a cast to uintptr_t would work here, but that requires
inconvenient build-system changes. %lu works on all current and
foreseable future hosts.

llvm-svn: 60616
 2008-12-05 23:39:24 +00:00
Dale Johannesen
f4758579eb Fix test to pass on Linux. 
llvm-svn: 60614
 2008-12-05 22:38:21 +00:00
Dale Johannesen
c6404f98b2 Forgot a file. 
llvm-svn: 60609
 2008-12-05 21:55:35 +00:00
Dale Johannesen
f5a072c388 Make LoopStrengthReduce smarter about hoisting things out of 
loops when they can be subsumed into addressing modes.

Change X86 addressing mode check to realize that
some PIC references need an extra register.
(I believe this is correct for Linux, if not, I'm sure
someone will tell me.)

llvm-svn: 60608
 2008-12-05 21:47:27 +00:00
Chris Lattner
2b5e1b5263 Make a few major changes to memdep and its clients: 
1. Merge the 'None' result into 'Normal', making loads
   and stores return their dependencies on allocations as Normal.
2. Split the 'Normal' result into 'Clobber' and 'Def' to
   distinguish between the cases when memdep knows the value is
   produced from when we just know if may be changed.
3. Move some of the logic for determining whether readonly calls
   are CSEs into memdep instead of it being in GVN.  This still
   leaves verification that the arguments are hte same to GVN to
   let it know about value equivalences in different contexts.
4. Change memdep's call/call dependency analysis to use 
   getModRefInfo(CallSite,CallSite) instead of doing something 
   very weak.  This only really matters for things like DSA, but
   someday maybe we'll have some other decent context sensitive
   analyses :)
5. This reimplements the guts of memdep to handle the new results.
6. This simplifies GVN significantly:
   a) readonly call CSE is slightly simpler
   b) I eliminated the "getDependencyFrom" chaining for load 
      elimination and load CSE doesn't have to worry about 
      volatile (they are always clobbers) anymore.
   c) GVN no longer does any 'lastLoad' caching, leaving it to 
      memdep.
7. The logic in DSE is simplified a bit and sped up.  A potentially
   unsafe case was eliminated.

llvm-svn: 60607
 2008-12-05 21:04:20 +00:00
Dan Gohman
5e30c5b83b Demangle and pretty-print symbols in internal backtraces. Patch by 
Wesley Peck, with a few fixes by me.

llvm-svn: 60605
 2008-12-05 20:12:48 +00:00
Anton Korobeynikov
30085a6f51 Revert invalid r60393. It causes llvm-gcc bootstrap fails in release builds. 
See PR3160 for details

llvm-svn: 60604
 2008-12-05 19:38:49 +00:00