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39350bab39
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1749 Commits

Author SHA1 Message Date
Gabor Greif
39350bab39 convert another operand loop to iterator formulation 
llvm-svn: 51661
 2008-05-29 00:51:08 +00:00
Dan Gohman
4b11213552 Use Function::getEntryBlock instead of Function::begin, for clarity. 
llvm-svn: 51613
 2008-05-27 20:55:29 +00:00
Dan Gohman
327d2c6167 Print debug output when any edge becomes executable, including 
the first visited edge.

llvm-svn: 51612
 2008-05-27 20:47:30 +00:00
Duncan Sands
4757a8dd76 Fix some constructs that gcc-4.4 warns about. 
llvm-svn: 51591
 2008-05-27 11:50:51 +00:00
Nick Lewycky
f24743a6bb Don't treat values as signed when looking at loop steppings in HowForToNonZero. 
llvm-svn: 51560
 2008-05-25 23:43:32 +00:00
Nick Lewycky
744dad8004 "ret (constexpr)" can't be folded into a Constant. Add a method to 
Analysis/ConstantFolding to fold ConstantExpr's, then make instcombine use it
to try to use targetdata to fold constant expressions on void instructions.

Also extend the icmp(inttoptr, inttoptr) folding to handle the case where
int size != ptr size.

llvm-svn: 51559
 2008-05-25 20:56:15 +00:00
Dan Gohman
f25b89f697 Use isSingleValueType instead of isFirstClassType to 
exclude struct and array types.

llvm-svn: 51452
 2008-05-22 23:43:22 +00:00
Gabor Greif
0c41f351cc transform more loops to iterator form, detabify 
llvm-svn: 51436
 2008-05-22 19:24:54 +00:00
Gabor Greif
0c8b237857 Rewrite operand loops to use iterators. This shrinks .o file (at gcc4.0.1 -O3 x86) substantially (>500 bytes). Reason still unknown. 
llvm-svn: 51423
 2008-05-22 06:43:33 +00:00
Chris Lattner
5a09a5fb88 Free and vaarg are not really volatile. 
llvm-svn: 51407
 2008-05-22 03:23:06 +00:00
Gabor Greif
aa0a5c230c suppress gcc3.4.6's <no value returned> warnings 
llvm-svn: 51372
 2008-05-21 14:07:30 +00:00
Chris Lattner
821dc30131 Fix PR2346 by marking vaarg as volatile so that licm doesn't try to 
hoist them.

llvm-svn: 51356
 2008-05-20 22:05:28 +00:00
Chris Lattner
5c3ce73720 Add a bool to isEdgeFeasible that tells it whether to treat unknown 
value as undef or untracked.

llvm-svn: 51295
 2008-05-20 03:39:39 +00:00
Gabor Greif
d61f20217a API change for {BinaryOperator|CmpInst|CastInst}::create*() --> Create. Legacy interfaces will be in place for some time. (Merge from use-diet branch.) 
llvm-svn: 51200
 2008-05-16 19:29:10 +00:00
Dan Gohman
48ac9aec33 Use static and anonymous namespaces consistently with other passes. 
llvm-svn: 51156
 2008-05-15 19:43:55 +00:00
Owen Anderson
5e6431c140 Fix memdep's handling of invokes when finding the dependency of another call 
instruction.  This fixes some Ada miscompiles reported in PR2324.

llvm-svn: 51069
 2008-05-13 21:25:37 +00:00
Dan Gohman
bab18cae46 Clean up the use of static and anonymous namespaces. This turned up 
several things that were neither in an anonymous namespace nor static
but not intended to be global.

llvm-svn: 51017
 2008-05-13 00:00:25 +00:00
Chris Lattner
0eb3dfb3b0 prune #includes. 
llvm-svn: 50962
 2008-05-12 01:13:53 +00:00
Chris Lattner
f459fcde61 Add a new SparsePropagation analysis utility, which allows you to do 
SCCP like sparse lattice analysis with relative ease.  Just pick your
lattice function and implement the transfer function and you're good.
Just make sure you don't break monotonicity ;-)

llvm-svn: 50961
 2008-05-12 01:12:24 +00:00
Torok Edwin
9b85a8dc92 put LibCallAliasAnalysis into anonymous namespace to avoid 
clashes on ::X

llvm-svn: 50912
 2008-05-09 20:35:45 +00:00
Chris Lattner
dfd5ee9b42 Remove dead return. Thanks to Bill for the review! 
llvm-svn: 50863
 2008-05-08 18:26:56 +00:00
Chris Lattner
9011ceba89 Add support for constant folding the 'offsetof' pattern even if the 
base is not zero.  This fixes test/C++Frontend/2008-05-07-CrazyOffsetOf.cpp

llvm-svn: 50840
 2008-05-08 04:54:43 +00:00
Chris Lattner
3ee18d7c51 Add a new LibCallAliasAnalysis pass, which is parameterized 
by an instance of LibCallInfo to provide mod/ref info of
standard library functions.  This is powerful enough to
say that 'sqrt' is readonly except that it modifies errno,
or that "printf doesn't store to memory unless the %n
constraint is present" etc.

llvm-svn: 50827
 2008-05-07 19:53:05 +00:00
Chris Lattner
e70ff7b21c Add a new interface for describing the behavior of library calls. This 
Currently is sufficient to describe mod/ref behavior but will hopefully
eventually be extended for other purposes.

This isn't used by anything yet.

llvm-svn: 50820
 2008-05-07 18:21:13 +00:00
Nick Lewycky
6705f7577b Fix typo and indentation. 
llvm-svn: 50706
 2008-05-06 04:03:18 +00:00
Dan Gohman
d4a670284c Make several variable declarations static. 
llvm-svn: 50696
 2008-05-06 01:53:16 +00:00
Dan Gohman
a84b75df17 Remove uses of llvm/System/IncludeFile.h that are no longer needed. 
llvm-svn: 50695
 2008-05-06 01:32:53 +00:00
Torok Edwin
d016bb2685 Implement destructor for PostDominatorTree to eliminate a memory leak. 
llvm-svn: 50607
 2008-05-03 20:25:26 +00:00
Devang Patel
4b2359feec Add assert. 
llvm-svn: 50596
 2008-05-02 22:13:33 +00:00
Dan Gohman
8f3ee5a54d Fix the way AliasSet::print prints "may alias". 
llvm-svn: 50051
 2008-04-21 19:48:48 +00:00
Duncan Sands
79654e36ce Fix a "large integer implicitly truncated to unsigned type" 
warning.

llvm-svn: 50033
 2008-04-21 07:35:28 +00:00
Dale Johannesen
3453a89a31 (re)fix handling of UGT. Pointed out by Nick Lewycky. 
llvm-svn: 49991
 2008-04-20 16:58:57 +00:00
Chris Lattner
f390d62b7f Switch to using Simplified ConstantFP::get API. 
llvm-svn: 49977
 2008-04-20 00:41:09 +00:00
Dale Johannesen
c1b7e0b477 Fix a scalar evolution bug. Reversing everything 
does not work because of 0; 2>0 but -2U is also >0.

llvm-svn: 49928
 2008-04-18 21:38:31 +00:00
Owen Anderson
cd1b9c4b43 Make GVN able to remove unnecessary calls to read-only functions again. 
llvm-svn: 49842
 2008-04-17 05:36:50 +00:00
Owen Anderson
030428b435 Major repairs to the post-dominators implementation. Patch from Florian Brandner! 
llvm-svn: 49768
 2008-04-16 04:21:16 +00:00
Dale Johannesen
45e14f7753 Don't assume a tail call can't reference a byval 
argument to the outer function, this isn't correct.

llvm-svn: 49731
 2008-04-15 17:41:34 +00:00
Dan Gohman
14dce3e51c Teach AliasSetTracker about VAArgInst. 
llvm-svn: 49674
 2008-04-14 18:34:50 +00:00
Dan Gohman
5c71910cf6 In the special case, call the comparison function instead of 
manually performing the comparison. This allows the special
case to work correctly even in the case where someone is
experimenting with a different comparison function :-).

llvm-svn: 49670
 2008-04-14 18:23:56 +00:00
Chris Lattner
f63bdaf0b5 add a new CallGraphNode::removeCallEdgeFor method, tidy some comments. 
llvm-svn: 49617
 2008-04-13 19:41:25 +00:00
Dan Gohman
9c8e4ef9a9 Fix a typo in a comment. 
llvm-svn: 49504
 2008-04-10 23:02:38 +00:00
Owen Anderson
392a40e40a Fix for PR2190. Memdep's non-local caching was checking dirtied blocks in the 
wrong order.

llvm-svn: 49499
 2008-04-10 22:13:32 +00:00
Daniel Berlin
b8533b394a Fix PR 2169. 
llvm-svn: 49339
 2008-04-07 14:20:50 +00:00
Gabor Greif
6c6b8a57f3 API changes for class Use size reduction, wave 1. 
Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.

llvm-svn: 49277
 2008-04-06 20:25:17 +00:00
Dan Gohman
f7dfe555d7 Set blockBegin to point to the beginning of the block, 
not the end.

llvm-svn: 48999
 2008-03-31 22:08:00 +00:00
Erick Tryzelaar
847ee3e279 Expose Function::viewCFG and Function::viewCFGOnly to bindings. 
llvm-svn: 48982
 2008-03-31 16:22:09 +00:00
Chris Lattner
a69d949942 minor code cleanups, allow constant folding sinf/cosf. 
llvm-svn: 48961
 2008-03-30 18:02:00 +00:00
Dan Gohman
a363ba510c Don't include <map> in Pass.h, which doesn't need it. This requires 
adding <map> to many files that actually do need it.

llvm-svn: 48667
 2008-03-21 23:51:57 +00:00
Devang Patel
1b64c7d1e5 These passes preserve CFG. 
This patch fixes Benchmarks/Trimaran/enc-pc1/enc-pc1 failure reported by Grawp-PIC i386 nightly tester

llvm-svn: 48623
 2008-03-20 23:27:18 +00:00
Andrew Lenharth
6e32942dfa enable -analyze for andersens 
llvm-svn: 48601
 2008-03-20 15:36:44 +00:00