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1720 Commits

Author SHA1 Message Date
Dan Gohman
79fff7cf85 Fix the way AliasSet::print prints "may alias". 
llvm-svn: 50051
 2008-04-21 19:48:48 +00:00
Duncan Sands
5429033c03 Fix a "large integer implicitly truncated to unsigned type" 
warning.

llvm-svn: 50033
 2008-04-21 07:35:28 +00:00
Dale Johannesen
6145727b43 (re)fix handling of UGT. Pointed out by Nick Lewycky. 
llvm-svn: 49991
 2008-04-20 16:58:57 +00:00
Chris Lattner
3b18762f40 Switch to using Simplified ConstantFP::get API. 
llvm-svn: 49977
 2008-04-20 00:41:09 +00:00
Dale Johannesen
ce9dc86994 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
f9ae76d89c 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
57236b58f7 Major repairs to the post-dominators implementation. Patch from Florian Brandner! 
llvm-svn: 49768
 2008-04-16 04:21:16 +00:00
Dale Johannesen
8fc8a272e0 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
2cd8e38ab9 Teach AliasSetTracker about VAArgInst. 
llvm-svn: 49674
 2008-04-14 18:34:50 +00:00
Dan Gohman
5e6ce7bb33 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
cc9709cff4 add a new CallGraphNode::removeCallEdgeFor method, tidy some comments. 
llvm-svn: 49617
 2008-04-13 19:41:25 +00:00
Dan Gohman
9b5ffc8408 Fix a typo in a comment. 
llvm-svn: 49504
 2008-04-10 23:02:38 +00:00
Owen Anderson
53336d8055 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
b646062ad5 Fix PR 2169. 
llvm-svn: 49339
 2008-04-07 14:20:50 +00:00
Gabor Greif
e9ecc68d8f 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
3717cdaf22 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
4a0da98825 Expose Function::viewCFG and Function::viewCFGOnly to bindings. 
llvm-svn: 48982
 2008-03-31 16:22:09 +00:00
Chris Lattner
519a51a76f minor code cleanups, allow constant folding sinf/cosf. 
llvm-svn: 48961
 2008-03-30 18:02:00 +00:00
Dan Gohman
9988569af8 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
4d638f1a42 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
1a3ebe36f7 enable -analyze for andersens 
llvm-svn: 48601
 2008-03-20 15:36:44 +00:00
Devang Patel
80e43fa744 Restore isCFGOnly property of various analysis passes. 
llvm-svn: 48579
 2008-03-20 02:25:21 +00:00
Devang Patel
718da668ab PassInfo keep tracks whether a pass is an analysis pass or not. 
llvm-svn: 48554
 2008-03-19 21:56:59 +00:00
Devang Patel
af75ab8130 Do not use virtual function to identify an analysis pass. 
llvm-svn: 48520
 2008-03-19 00:48:41 +00:00
Daniel Berlin
5fef9aea12 Fix PR 2160 by making sure arguments to external functions get marked as pointing to anything 
llvm-svn: 48509
 2008-03-18 22:22:53 +00:00
Scott Michel
08ef1b2bdb Dial down gcc's warnings: don't use 0UL when 0U suffices (and when the 
variables and methods themselves only use unsigned.)

llvm-svn: 48492
 2008-03-18 16:55:06 +00:00
Devang Patel
864970e9b6 Identify Analysis pass. 
Do not run analysis pass again if analysis info is still available.
This fixes PR1441.

llvm-svn: 48476
 2008-03-18 00:39:19 +00:00
Daniel Berlin
c3d98074a9 Add Hybrid Cycle Detection to Andersen's analysis. 
Patch by Curtis Dunham.

llvm-svn: 47959
 2008-03-05 19:31:47 +00:00
Gabor Greif
f77e6977a0 Fix http://llvm.org/bugs/show_bug.cgi?id=2104 by ordering lexicographically what gets printed. Be const-correct in PrintResults and uninline it too 
llvm-svn: 47712
 2008-02-28 08:38:45 +00:00
Bill Wendling
7bb51dfbb1 De-tabify. 
llvm-svn: 47598
 2008-02-26 10:51:52 +00:00
Evan Cheng
01d6257e81 Temporarily reverting 46959. 
llvm-svn: 47542
 2008-02-25 03:57:32 +00:00
Dan Gohman
d723b13f14 Change a C-style cast to const_cast, to avoid a -Wcast-qual warning. 
llvm-svn: 47437
 2008-02-21 17:33:24 +00:00
Nick Lewycky
5a3db1406a Simplify this code, no functionality change. 
llvm-svn: 47434
 2008-02-21 09:14:53 +00:00
Nick Lewycky
839adb877a GlobalValues are Constants, remove redundant code. Also fix typo in a comment. 
llvm-svn: 47433
 2008-02-21 08:34:02 +00:00
Anton Korobeynikov
579f07135a Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings. 
llvm-svn: 47367
 2008-02-20 11:08:44 +00:00
Nick Lewycky
b0a2f9513f Use getConstant for ConstantInts. 
llvm-svn: 47361
 2008-02-20 06:58:55 +00:00
Nick Lewycky
1c44ebcf86 Add 'umax' similar to 'smax' SCEV. Closes PR2003. 
Parse reversed smax and umax as smin and umin and express them with negative
or binary-not SCEVs (which are really just subtract under the hood).

Parse 'xor %x, -1' as (-1 - %x).

Remove dead code (ConstantInt::get always returns a ConstantInt).

Don't use getIntegerSCEV(-1, Ty). The first value is an int, then it gets
passed into a uint64_t. Instead, create the -1 directly from
ConstantInt::getAllOnesValue().

llvm-svn: 47360
 2008-02-20 06:48:22 +00:00
Duncan Sands
eec73618af Fix a compiler warning. 
llvm-svn: 47328
 2008-02-19 09:28:48 +00:00
Owen Anderson
d2d7c6b309 In addition to arguments passed to it, memcpy (and all other calls) can ModRef pointers that alias their arguments as well. This fixes PR2057. 
llvm-svn: 47317
 2008-02-19 06:47:18 +00:00
Chris Lattner
8ed77c41d8 don't bother calling getUnderlyingObject for non-pointers. 
llvm-svn: 47272
 2008-02-18 17:28:21 +00:00
Owen Anderson
cc01ebbac6 Since we're not checking for the more general AllocationInst first, we need to explicitly check 
that Object is an Argument before casting it to one.

llvm-svn: 47268
 2008-02-18 10:11:00 +00:00
Owen Anderson
bdf7ed9495 This check is not correct for mallocs, so exclude them earlier. 
llvm-svn: 47263
 2008-02-18 09:11:02 +00:00
Owen Anderson
57a98b7f4b Fix a comment, and a bug where we weren't applying the tail call logic in cases that failed the first test. 
llvm-svn: 47253
 2008-02-18 03:52:21 +00:00
Owen Anderson
fa2ba5352f Fix bugs that Chris noticed in my last patch. 
llvm-svn: 47252
 2008-02-18 02:31:23 +00:00
Chris Lattner
8432cc662f bitcasts of pointers are always pointers. 
If we see a memcpy of a pointer, make sure to check later
uses of the pointer as well.

llvm-svn: 47250
 2008-02-18 02:11:28 +00:00
Owen Anderson
2e3edf193a Teach getModRefInfo that memcpy, memmove, and memset don't "capture" memory addresses. 
Also, noalias arguments are be considered "like" stack allocated ones for this purpose, because
the only way they can be modref'ed is if they escape somewhere in the current function.

llvm-svn: 47247
 2008-02-17 21:29:08 +00:00
Wojciech Matyjewicz
0e411f653c Fix typo. Thanks to Duncan for noticing. 
llvm-svn: 47062
 2008-02-13 12:21:32 +00:00
Wojciech Matyjewicz
35545fd84d Add comments as per review feedback. 
llvm-svn: 47061
 2008-02-13 11:51:34 +00:00
Owen Anderson
00dba4f734 Re-apply the patch to improve the optimizations of memcpy's, with several 
bugs fixed.  This now passes PPC bootstrap.

llvm-svn: 47026
 2008-02-12 21:15:18 +00:00
Wojciech Matyjewicz
1d2c27b23e Fix PR2002. Suppose n is the initial value for the induction 
variable (with step 1) and m is its final value. Then, the correct trip 
count is SMAX(m,n)-n. Previously, we used SMAX(0,m-n), but m-n may 
overflow and can't in general be interpreted as signed.

Patch by Nick Lewycky.

llvm-svn: 47007
 2008-02-12 15:09:36 +00:00