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Author SHA1 Message Date
Chris Lattner
5734e4331e add a new DSGraph::spliceFrom method, which violently takes the content of 
one graph and plops it into another, without breaking a sweat.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20824 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 23:46:04 +00:00
Chris Lattner
487cd15fdb add new spliceFrom methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20823 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 23:45:20 +00:00
Nate Begeman
9e3e1b5d44 Implement next round of Pattern ISel fixes 
1. void returns
2. multiplies
3. calls


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20822 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 23:35:30 +00:00
Nate Begeman
7ca541b75a Fix an incorrect argument being passed to BuildMI for indirect calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20821 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 23:34:38 +00:00
Chris Lattner
4da120e5d6 This replaces the correct but slow code with a more aggressive scc-finder 
based approach to find globals and call sites that need to be copied.  This
speeds up the BU pass on 176.gcc from 22s back up to 2.3s.  Not as good
as 1.5s, but at least it's correct :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20820 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 23:06:02 +00:00
Chris Lattner
09adbbc99e only look at successors of globals. This gets us down to "only" 22s in the 
bu pass for 176.gcc


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20818 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 21:17:27 +00:00
Chris Lattner
d8642125e4 Unfortunately, a previous patch was not safe. Revert it, reimplement 
something correct. Unfortunately this takes 176.gcc's BU phase back
up to 29s from 1.5.  This fixes DSGraph/2005-03-24-Global-Arg-Alias.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20817 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 21:07:47 +00:00
Nate Begeman
2daec45751 Commit Gabor Greif's patch to use iterators in lowering intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20816 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 20:07:16 +00:00
Chris Lattner
0d397bd437 don't bother |'ing in 0's 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20815 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 18:42:51 +00:00
Chris Lattner
d94b4d5b9c be more aggressive about incompleteness marking 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20814 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 18:42:28 +00:00
Chris Lattner
4e59c642c8 new testcase that DS-AA is causing to be miscompiled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20813 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 17:57:43 +00:00
Chris Lattner
1bcb9abb30 eliminate dead variables, patch contributed by Gabor Greif! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20812 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 17:32:20 +00:00
Nate Begeman
5e9666129a Implement more of the PPC32 Pattern ISel: 
1) dynamic stack alloc
2) loads
3) shifts
4) subtract
5) immediate form of add, and, or, xor
6) change flag from -pattern-isel to -enable-ppc-pattern-isel

Remove dead arguments from getGlobalBaseReg in the simple ISel


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20810 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 06:28:42 +00:00
Chris Lattner
246fa6316d Fix silly "no newline at end of file" warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20809 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 06:16:18 +00:00
Chris Lattner
26bc78ed10 Fix compilation errors, patch contributed by the fabulous Bill Wendling! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20808 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 05:13:53 +00:00
Chris Lattner
3c61f70dc1 fix a compilation error, patch contributed by Bill Wendling! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20807 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 05:12:48 +00:00
Nate Begeman
a9795f81e9 Addition of the PPC32 Pattern ISel. While it is far from complete, it will 
be brought up to parity with the current simple ISel in the coming days.
Currently, -pattern-isel is required to trigger it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20805 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 04:41:43 +00:00
Nate Begeman
85fdeb233e Remove comments that are now meaningless from the pattern ISels, at Chris's 
request.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20804 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 04:39:54 +00:00
Chris Lattner
c5132e65a6 Fix a crash while promoting a value out of a loop from a global variable 
when using ds-aa


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20802 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 04:22:04 +00:00
Chris Lattner
7d671b88e8 teach ds-aa about mod/ref for external function calls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20801 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 03:04:50 +00:00
Chris Lattner
62da315c85 Simplify dead code into a fixme :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20800 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 02:41:19 +00:00
Chris Lattner
c4417f98e5 fix a compiler crash in runtime/libprofile 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20799 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-24 01:22:52 +00:00
Chris Lattner
f5eaf3c62c wrap a long line 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20797 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 23:51:12 +00:00
Chris Lattner
ec6518ddc2 If we are calling an external function, chain to another AA to potentially 
decide, don't just immediately give up.

This implements GlobalsModRef/chaining-analysis.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20796 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 23:49:47 +00:00
Chris Lattner
e04d51f4a5 GlobalMR should be able to analyze this function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20795 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 23:48:56 +00:00
Chris Lattner
8eec644862 if a function doesn't access memory at all, it definitely doesn't read it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20794 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 23:27:34 +00:00
Chris Lattner
8cfd24df54 Make this more efficient by only making one virtual method call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20793 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 23:26:58 +00:00
Chris Lattner
d433bde071 Make this a bit more aggressive 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20792 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 22:06:41 +00:00
Chris Lattner
65512d2525 a hack to allow count-aa to work with ds-aa :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20791 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 21:59:34 +00:00
Chris Lattner
cf9f20189f Add two options to allow -count-aa to print queries either (1) all queries, 
or (2) only queries that are not successful (e.g. return may alias)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20790 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 21:59:07 +00:00
Misha Brukman
b8190e6b30 Fix grammar 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20789 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 21:14:33 +00:00
Chris Lattner
1f309c1a4e enable -debug-only=licm 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20788 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 21:00:12 +00:00
Chris Lattner
c14f59cb72 turn a dead conditional into an assert. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20787 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 20:12:08 +00:00
Chris Lattner
e3f1d8a525 Totally gut mergeInGraph. There is absolutely no reason to be merging 
global roots in from callees to callers.  The BU graphs do not have accurate
globals information and all of the clients know it.  Instead, just make sure
the GG is up-to-date, and they will be perfectly satiated.

This speeds up the BU pass on 176.gcc from 5.5s to 1.5s, and Loc+BU+TD
from 7s to 2.7s.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20786 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 20:08:59 +00:00
Chris Lattner
eb39492deb wrap a long line 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20785 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 16:43:11 +00:00
Andrew Lenharth
cc59ed5379 don't lie to the register allocator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20784 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 15:20:01 +00:00
Chris Lattner
943814bb01 Make -steens-aa more conservative (aka correct) by making sure to obey 
incompleteness flags.

Make it more aggressive by taking field sensitive information into
account.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20781 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 01:48:09 +00:00
Tanya Lattner
9532ab9839 Added alias analysis. 
Fixed many many bugs.
This now works on almost all Singlesource , and most of MultiSource.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20780 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 01:47:20 +00:00
Chris Lattner
2f72f9462b implement Analysis/DSGraph/field-sensitive.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20779 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 01:47:19 +00:00
Chris Lattner
ad46cf0282 new testcase to verify that we have field sensitive alias analysis info. This 
test cannot be satisfied without interprocedural information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20778 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 01:46:59 +00:00
Chris Lattner
7c61b7b6ea make sure this test tests the intended target. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20777 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 01:32:03 +00:00
Chris Lattner
60cd9558ba don't crash in some bad cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20776 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-23 01:29:26 +00:00
Chris Lattner
1e9d1475bc Several changes here: 
1. Increase max node size from 64->256 to avoid collapsing an important
   structure in 181.mcf
2. If we have multiple calls to an indirect call node with an indirect
   callee, fold these call nodes together, to avoid DSA turning apoc into
   a flaming fireball of death when analyzing 176.gcc.
  With this change, 176.gcc now takes ~7s to analyze for loc+bu+td, with
  5.7s of that in the BU pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20775 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 23:54:52 +00:00
Chris Lattner
c7c6a864c0 We might as well check the TD graphs as well, even though they are fine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20774 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 22:11:22 +00:00
Chris Lattner
9547adef58 Mark external globals incomplete in the BU Globals graph, fixing 
Analysis/DSGraph/2005-03-22-IncompleteGlobal.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20773 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 22:10:22 +00:00
Chris Lattner
4c10375785 New testcase, the BU pass is marking the global complete in the globals graph. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20772 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 22:07:15 +00:00
Tanya Lattner
f2dce8d29b Updating my entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20771 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 21:33:19 +00:00
Chris Lattner
ee76095307 Fix a serious bug where we didn't insert globals into the globalset when 
cloning a graph.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20770 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 19:44:11 +00:00
Andrew Lenharth
f29dc07aae hum, it is good to use real instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20769 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 16:42:52 +00:00
Chris Lattner
6ae7e9837c Directly count the number of memory instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20766 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-03-22 03:55:10 +00:00