4956a32c9e
Fix another really nasty regression that Anshu pointed out. In cases where
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dangling constant users were removed from a function, causing it to be dead,
we never removed the call graph edge from the external node to the function.
In most cases, this didn't cause a problem (by luck). This should definitely
go into 1.3
llvm-svn: 15570
2004-08-08 03:29:50 +00:00
63b38bd2ed
Fix #includes of i*.h => Instructions.h as per PR403.
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llvm-svn: 15334
2004-07-29 17:30:56 +00:00
ec67df0ed1
Ignore instructions that are in trivially dead functions. This allows us
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to constify 14 globals instead of 4 in a trivial C++ testcase.
llvm-svn: 15027
2004-07-20 03:58:07 +00:00
e2774757fe
Fix a performance regression from the CPR patch, simplify code
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llvm-svn: 14974
2004-07-18 21:34:16 +00:00
d47504d9db
Strip out and simplify some code. This also fixes the regression last
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night compiling cfrac. It did not realize that code like this:
int G; int *H = &G;
takes the address of G.
llvm-svn: 14973
2004-07-18 19:56:20 +00:00
199aeb7f59
Avoid an unnecessary isa<Constant>.
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llvm-svn: 14963
2004-07-18 08:31:18 +00:00
9238d78dc3
Remove useless statistic, fix some slightly broken logic
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llvm-svn: 14958
2004-07-18 07:22:58 +00:00
2da5eee33c
Fix a rather serious bug in previous checkin
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llvm-svn: 14957
2004-07-18 06:56:58 +00:00
cb3fb5d4f5
bug 122:
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- Replace ConstantPointerRef usage with GlobalValue usage
llvm-svn: 14953
2004-07-18 00:44:37 +00:00
ef784f01dd
bug 122:
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- Minimize redundant isa<GlobalValue> usage
llvm-svn: 14948
2004-07-18 00:32:14 +00:00
5f6815980b
bug 122:
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- Replace ConstantPointerRef usage with GlobalValue usage
- Rename methods to get ride of ConstantPointerRef usage
llvm-svn: 14945
2004-07-18 00:25:04 +00:00
83cae64faf
bug 122:
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- Excise dead CPR procesing.
llvm-svn: 14944
2004-07-18 00:23:51 +00:00
3b11d3b294
Remove unused file
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llvm-svn: 14460
2004-06-28 00:46:58 +00:00
924882f775
These passes are long dead/obsolete. They never worked in the first place
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and are a maintenence burden. Nuke nuke nuke
llvm-svn: 14457
2004-06-28 00:44:18 +00:00
ddc90adca3
File depends on DSA, moved to lib/Analysis/DataStructure
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llvm-svn: 14325
2004-06-22 18:11:38 +00:00
1c676f76b6
Make order of argument addition deterministic. In particular, the layout
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of ConstantInt objects in memory used to determine which order arguments
were added in in some cases.
llvm-svn: 14276
2004-06-21 00:07:58 +00:00
7d30a6c145
Fix the inliner to be deterministic, not letting its output depend on the
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relative location of Function objects in memory.
llvm-svn: 14260
2004-06-20 04:11:48 +00:00
1e1abdd6ed
Do not function resolve intrinsics. This prevents warnings and possible bad
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things from happening due to
declare bool %llvm.isunordered(double, double)
declare bool %llvm.isunordered(float, float)
llvm-svn: 14219
2004-06-18 05:50:48 +00:00
6b7275996c
Rename Type::PrimitiveID to TypeId and ::getPrimitiveID() to ::getTypeID()
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llvm-svn: 14201
2004-06-17 18:19:28 +00:00
37d2ae92a7
Fix a bug in the -deadtypeelim pass. The SymbolTable re-write changed it
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to eliminate the wrong type.
llvm-svn: 13855
2004-05-27 21:16:46 +00:00
e7e9671cad
Convert to SymbolTable's new iteration interface.
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llvm-svn: 13754
2004-05-25 08:53:40 +00:00
6f02714a10
Fix a bug in my previous checkin
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llvm-svn: 13717
2004-05-24 06:24:46 +00:00
6754b827c6
Fix cases where we missed inlining some more obvious candidates because the
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caller was in an SCC.
llvm-svn: 13693
2004-05-23 21:22:17 +00:00
8d7ff5e3dd
Simplify the interface and remove an unneeded #include
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llvm-svn: 13692
2004-05-23 21:21:35 +00:00
254f8f8ad5
Fairly substantial changes to update the alias analysis we are querying as
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we make the transformation. This allows us to use interprocedural alias
analyses successfully.
llvm-svn: 13691
2004-05-23 21:21:17 +00:00
98aa516a9c
Clarify the logic: the flag is renamed to `deleteFn' to signify it will delete
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the function instead of isolating it. This also means the condition is reversed.
llvm-svn: 13112
2004-04-22 23:00:51 +00:00
e0682426f0
Add a flag to choose between isolating a function or deleting the function from
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the Module. The default behavior keeps functionality as before: the chosen
function is the one that remains.
llvm-svn: 13111
2004-04-22 22:52:22 +00:00
be8bb804c5
Fix an incredibly nasty iterator invalidation problem. I am too spoiled by ilists :)
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Eventually it would be nice if CallGraph maintained an ilist of CallGraphNode's instead
of a vector of pointers to them, but today is not that day.
llvm-svn: 13100
2004-04-21 20:44:33 +00:00
a9691fe70d
Fix typeo
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llvm-svn: 13089
2004-04-21 14:23:18 +00:00
c87784f1fc
REALLY fix PR324: don't delete linkonce functions until after the SCC traversal
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is done, which avoids invalidating iterators in the SCC traversal routines
llvm-svn: 13088
2004-04-20 22:06:53 +00:00
514934051a
Fix PR324 and testcase: Inline/2004-04-20-InlineLinkOnce.llx
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llvm-svn: 13080
2004-04-20 20:20:59 +00:00
d72c3eb54e
Change the ExitBlocks list from being explicitly contained in the Loop
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structure to being dynamically computed on demand. This makes updating
loop information MUCH easier.
llvm-svn: 13045
2004-04-18 22:14:10 +00:00
be43544429
Actually update the call graph as the inliner changes it. This allows us to
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execute other CallGraphSCCPasses after the inliner without crashing.
llvm-svn: 12861
2004-04-12 05:37:29 +00:00
08f201bee5
Stop printing Function*
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llvm-svn: 12857
2004-04-12 04:06:56 +00:00
d041dcd92f
Simplify code a bit, and be sure to mark the external node as potentially throwing
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llvm-svn: 12856
2004-04-12 04:06:38 +00:00
4d25c86b52
Remove the "really gross hacks" that are there to deal with recursive functions.
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Now we collect all of the call sites we are interested in inlining, then inline
them. This entirely avoids issues with trying to inline a call site we got by
inlining another call site. This also eliminates iterator invalidation issues.
llvm-svn: 12770
2004-04-08 06:34:31 +00:00
e83693560a
Add statistics to the loop extractor. The loop extractor has successfully
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extracted all 63 loops for Olden/bh without crashing and without
miscompiling the program!!!
llvm-svn: 12491
2004-03-18 05:46:10 +00:00
5bce0c807d
Fix problem with PHI nodes having multiple predecessors from different
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exit nodes
llvm-svn: 12490
2004-03-18 05:43:18 +00:00
e9235d2dde
The code extractor needs dominator info. Provide it
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llvm-svn: 12483
2004-03-18 03:48:06 +00:00
95ce36da0d
Restore old inlining heuristic. As the comment indicates, this is a nasty
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horrible hack.
llvm-svn: 12423
2004-03-15 06:38:14 +00:00
2f155d8734
Fix several bugs in the loop extractor. In particular, subloops were never
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extracted, and a function that contained a single top-level loop never had
the loop extracted, regardless of how much non-loop code there was.
llvm-svn: 12403
2004-03-15 00:02:02 +00:00
a1672c1bd8
Split into two passes. Now there is the general loop extractor, usable on
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the command line, and the single loop extractor, usable by bugpoint
llvm-svn: 12390
2004-03-14 20:01:36 +00:00
0137de5ecb
Passes don't print stuff!
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llvm-svn: 12385
2004-03-14 04:17:53 +00:00
6c3e8c78cf
FunctionPass's should not define their own 'run' method.
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Require 'simplified' loops, not just raw natural loops. This fixes
CodeExtractor/2004-03-13-LoopExtractorCrash.ll
llvm-svn: 12381
2004-03-14 04:01:06 +00:00
78a996aec4
Move prototype to IPO.h instead of Scalar.h
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Make sure that the file interface header (IPO.h) is included first
remove dead #incldue
llvm-svn: 12375
2004-03-14 02:37:16 +00:00
692a47aeb9
Indent anon namespace properly, add copyright block
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llvm-svn: 12373
2004-03-14 02:34:07 +00:00
41ec709e00
Move to the IPO library. Utils shouldn't contain passes.
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llvm-svn: 12372
2004-03-14 02:32:27 +00:00
8eebc49884
DemoteRegToStack got moved from DemoteRegToStack.h to Local.h
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llvm-svn: 12368
2004-03-14 02:13:38 +00:00
2dc85b27e4
This change makes two big adjustments.
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* Be a lot more accurate about what the effects will be when inlining a call
to a function when an argument is an alloca.
* Dramatically reduce the penalty for inlining a call in a large function.
This heuristic made it almost impossible to inline a function into a large
function, no matter how small the callee is.
llvm-svn: 12363
2004-03-13 23:15:45 +00:00
fe6f2e3e80
Implement ArgumentPromotion/aggregate-promote.ll
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This allows pointers to aggregate objects, whose elements are only read, to
be promoted and passed in by element instead of by reference. This can
enable a LOT of subsequent optimizations in the caller function.
It's worth pointing out that this stuff happens a LOT of C++ programs, because
objects in templates are generally passed around by reference. When these
templates are instantiated on small aggregate or scalar types, however, it is
more efficient to pass them in by value than by reference.
This transformation triggers most on C++ codes (e.g. 334 times on eon), but
does happen on C codes as well. For example, on mesa it triggers 72 times,
and on gcc it triggers 35 times. this is amazingly good considering that
we are using 'basicaa' so far.
llvm-svn: 12202
2004-03-08 01:04:36 +00:00
Chris Lattner