49cdc6b564
Minor efficiency gain: do 1 nlogn lookup instead of two
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Code cleanup
llvm-svn: 13875
2004-05-28 05:36:49 +00:00
fc7509b7d4
Fix warnings about reaching end of non-void function
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llvm-svn: 13852
2004-05-27 20:57:01 +00:00
f6c4ee0744
Recognize memalign and friends, and handle them specially.
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llvm-svn: 13741
2004-05-25 08:14:52 +00:00
62c37008a4
Changes to work with the changes to the AliasAnalysis interface. The -no-aa
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class is now in the BasicAliasAnalysis.cpp file
llvm-svn: 13684
2004-05-23 21:15:48 +00:00
59c8ed8843
Move the -no-aa AA implementation into this file since both of these
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alias analysis implementations are special: they do not autoforward to a
chained implementation of alias analysis
llvm-svn: 13683
2004-05-23 21:15:12 +00:00
e345f6b5ab
Updates to work with the new auto-forwarding AA interface changes
...
llvm-svn: 13682
2004-05-23 21:14:27 +00:00
e657eb17cc
Fix a really nasty bug with the -disable-ds-field-sensitivity option
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llvm-svn: 13681
2004-05-23 21:14:09 +00:00
befe4c510e
Update to match the autochaining interface that the AA interface uses
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llvm-svn: 13680
2004-05-23 21:13:51 +00:00
32502b8d4a
Implement the interfaces to update value numbering information. Add an
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assert.
llvm-svn: 13679
2004-05-23 21:13:24 +00:00
746e1e1808
Rename a method
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llvm-svn: 13676
2004-05-23 21:10:58 +00:00
5758134505
Add a simple implementation of Andersen's interprocedural pointer analysis
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llvm-svn: 13666
2004-05-23 21:00:47 +00:00
159ed21b67
Inline both direct and indirect callees in the CBU phase because
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a direct callee may have indirect callees and so may have changed.
llvm-svn: 13649
2004-05-23 08:00:34 +00:00
17fcb67a20
Fine grainify namespacification
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llvm-svn: 13436
2004-05-09 06:22:29 +00:00
e330adf842
Move the stuff that fixes the size, orientation & fonts of graphs to
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the debugging functions that call "dot". These fixed settings have
various problems: for example, the fixed size that is set in the graph
traits classes is not appropriate for turning the dot file into a PNG,
and if TrueType font rendering is being used, the 'Courier' TrueType font
may not be installed. It seems easy enough to specify these things on the
command line, anyhow.
llvm-svn: 13366
2004-05-05 06:10:06 +00:00
600f2045a9
Add stub support for reading BBTraces.
...
llvm-svn: 13352
2004-05-04 17:11:14 +00:00
34c13fbe94
Share ProfilingType enum with the C profiling runtime libraries.
...
llvm-svn: 13346
2004-05-04 16:53:07 +00:00
6942946132
Fix a problem with double freeing memory. For some reason, CallGraph is not
...
acting like a normal pass. :(
llvm-svn: 13318
2004-05-02 16:06:18 +00:00
929291aabb
Plug a minor memory leak
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llvm-svn: 13317
2004-05-02 07:31:34 +00:00
372d5bc9ab
Wrapped code and comments at 80 cols; doxygenified some comments.
...
llvm-svn: 13264
2004-04-29 04:05:30 +00:00
a70ae90722
Reorder #includes as per style guide.
...
llvm-svn: 13263
2004-04-29 04:04:47 +00:00
7e66438579
Send text and numbers directly to CachedWriter's contained ostream.
...
llvm-svn: 13243
2004-04-28 18:52:43 +00:00
2d3a7a6ff0
Changes to fix up the inst_iterator to pass to boost iterator checks. This
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patch was graciously contributed by Vladimir Prus.
llvm-svn: 13185
2004-04-27 15:13:33 +00:00
104341f31e
Add functions that return instances of these printer passes
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llvm-svn: 13175
2004-04-26 16:27:08 +00:00
f374b3f304
If an object is not in the scalar map then it must be a global from another
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graph.
llvm-svn: 13173
2004-04-26 14:44:08 +00:00
05ef97f994
Eliminate all of the SCEV Expansion code which is really part of the
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IndVars pass, not part of SCEV *analysis*.
llvm-svn: 13134
2004-04-23 21:29:03 +00:00
99504890b7
Pass the callgraph not the module
...
llvm-svn: 13087
2004-04-20 21:52:26 +00:00
8d0838130c
Add the ability for SCC passes to initialize and finalize themselves
...
llvm-svn: 13084
2004-04-20 21:30:06 +00:00
663ebc3ec6
It's not just a printer, it's actually an analysis too
...
llvm-svn: 13064
2004-04-19 03:42:32 +00:00
32447c55fe
Remove code to update loop depths
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llvm-svn: 13058
2004-04-19 03:02:09 +00:00
26ba2f5fe8
Add new method
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llvm-svn: 13050
2004-04-18 22:45:27 +00:00
d6ce359d3b
Fix computation of exit blocks
...
llvm-svn: 13047
2004-04-18 22:21:41 +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
e375a4fdc2
Implement method
...
llvm-svn: 13036
2004-04-18 06:54:48 +00:00
1472c63fb9
Add a new method, add a check missing that caused a segfault if a loop didn't
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have a canonical indvar
llvm-svn: 13032
2004-04-18 05:38:05 +00:00
dd73047673
Add the ability to compute exit values for complex loop using unanalyzable
...
operations. This allows us to compile this testcase:
int main() {
int h = 1;
do h = 3 * h + 1; while (h <= 256);
printf("%d\n", h);
return 0;
}
into this:
int %main() {
entry:
call void %__main( )
%tmp.6 = call int (sbyte*, ...)* %printf( sbyte* getelementptr ([4 x sbyte]* %.str_1, long 0, long 0), int 364 ) ; <int> [#uses=0]
ret int 0
}
This testcase was taken directly from 256.bzip2, believe it or not.
This code is not as general as I would like. Next up is to refactor it
a bit to handle more cases.
llvm-svn: 13019
2004-04-17 22:58:41 +00:00
4021d1af5a
Add the ability to compute trip counts that are only controlled by constants
...
even if the loop is using expressions that we can't compute as a closed-form.
This allows us to calculate that this function always returns 55:
int test() {
double X;
int Count = 0;
for (X = 100; X > 1; X = sqrt(X), ++Count)
/*empty*/;
return Count;
}
And allows us to compute trip counts for loops like:
int h = 1;
do h = 3 * h + 1; while (h <= 256);
(which occurs in bzip2), and for this function, which occurs after inlining
and other optimizations:
int popcount()
{
int x = 666;
int result = 0;
while (x != 0) {
result = result + (x & 0x1);
x = x >> 1;
}
return result;
}
We still cannot compute the exit values of result or h in the two loops above,
which means we cannot delete the loop, but we are getting closer. Being able to
compute a constant trip count for these two loops will allow us to unroll them
completely though.
llvm-svn: 13017
2004-04-17 18:36:24 +00:00
174633b078
Include <cmath> for compatibility with gcc 3.0.x (the system compiler on
...
Debian.)
llvm-svn: 12986
2004-04-16 15:57:32 +00:00
d9dc425376
add some helpful methods. Rearrange #includes to proper order
...
llvm-svn: 12960
2004-04-15 15:16:02 +00:00
b4f681b42b
Factor a bunch of classes out into a public header
...
llvm-svn: 12958
2004-04-15 15:07:24 +00:00
a4e4a63856
Unbreak the build
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llvm-svn: 12956
2004-04-15 14:17:43 +00:00
d420fe63ea
Implement a FIXME: if we're going to insert a cast, we might as well only
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insert it once!
llvm-svn: 12955
2004-04-14 22:01:22 +00:00
8a9fd94cfe
This is a trivial tweak to the addrec insertion code: insert the increment
...
at the bottom of the loop instead of the top. This reduces the number of
overlapping live ranges a lot, for example, eliminating a spill in an important
loop in 183.equake with linear scan.
I still need to make the exit comparison of the loop use the post-incremented
version of this variable, but this is an easy first step.
llvm-svn: 12952
2004-04-14 21:11:25 +00:00
55b7ef5a81
Add some methods that are useful for updating loop information.
...
llvm-svn: 12871
2004-04-12 20:26:17 +00:00
8b6db18ac3
Change the call graph class to have TWO external nodes, making call graph
...
SCC passes much more useful. In particular, this should fix the incredibly
stupid missed inlining opportunities that the inliner suffered from.
llvm-svn: 12860
2004-04-12 05:36:32 +00:00
c9e37d7cc9
Hrm, operator new and new[] do not belong here. We should not CSE them! :)
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llvm-svn: 12859
2004-04-12 05:16:42 +00:00
403abb824f
operator new & operator new[] do not kill any legal memory locations.
...
llvm-svn: 12833
2004-04-11 18:16:34 +00:00
c5fad355f8
Allow clients to be more efficient.
...
llvm-svn: 12831
2004-04-11 16:43:07 +00:00
4a1b03c773
Add a couple of more functions that cannot access memory (the intrinsics) and
...
don't write to memory
llvm-svn: 12808
2004-04-10 06:55:27 +00:00
74498e1066
Fix a bug Brian found.
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llvm-svn: 12754
2004-04-07 16:16:11 +00:00
d4f78f270b
Sparc don't got not "sqrtl", bum bum bum
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llvm-svn: 12670
2004-04-05 19:05:15 +00:00
Chris Lattner