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Author SHA1 Message Date
Owen Anderson
a783224b25 Eliminate a redundant check. This speeds up optimization of 253.perlbmk from 13.5 seconds to 10.9 seconds. 
llvm-svn: 37683
 2007-06-21 01:59:05 +00:00
Owen Anderson
b06cc18b7c Comment-ize the functions in GVNPRE. 
llvm-svn: 37681
 2007-06-21 00:19:05 +00:00
Chris Lattner
26537049eb refactor a bunch of code out of visitICmpInstWithInstAndIntCst into its own 
routine.

llvm-svn: 37679
 2007-06-20 23:46:26 +00:00
Owen Anderson
ff60973eb8 Split runOnFunction into many smaller functions. This make it easier to get accurate performance analysis of GVNPRE. 
llvm-svn: 37678
 2007-06-20 22:10:02 +00:00
Tanya Lattner
f9b0bbdec0 Modify deleting global variable with an even easier way. 
llvm-svn: 37676
 2007-06-20 20:46:37 +00:00
Devang Patel
0fae719c77 Update AnalysisGroup documentation to document restriction that allows 
only one ImmutablePass in a group.

llvm-svn: 37675
 2007-06-20 18:51:14 +00:00
Tanya Lattner
14cb38b473 Add blurb on deleting global variables. 
llvm-svn: 37674
 2007-06-20 18:33:15 +00:00
Owen Anderson
58265d2391 Make GVNPRE accurate report whether it modified the function or not. 
llvm-svn: 37673
 2007-06-20 18:30:20 +00:00
Evan Cheng
d9dca9363c Added some if-conversion tests. 
llvm-svn: 37672
 2007-06-20 18:26:15 +00:00
Owen Anderson
815c4d384b Get rid of an unneeded helper function. 
llvm-svn: 37670
 2007-06-20 00:43:33 +00:00
Evan Cheng
5da7b6f0fc Be more conservative of duplicating blocks. 
llvm-svn: 37669
 2007-06-19 23:55:02 +00:00
Owen Anderson
997c4e5e47 Use a DenseMap instead of an std::map for the value numbering. This reduces the time to optimize lencod on a PPC Debug build from ~300s to ~140s. 
llvm-svn: 37668
 2007-06-19 23:23:54 +00:00
Owen Anderson
5a902e6afc Make dependsOnInvoke much more specific in what it tests, which in turn make it much faster to run. This reduces the time to optimize lencondwith a debug build on PPC from ~450s to ~300s. 
llvm-svn: 37667
 2007-06-19 23:07:16 +00:00
Tanya Lattner
b2aae813b6 Moved Inliner.h to include/llvm/Transforms/IPO/InlinerPass.h 
llvm-svn: 37666
 2007-06-19 22:31:52 +00:00
Tanya Lattner
a2e912bf51 Inliner pass header file was moved. 
llvm-svn: 37665
 2007-06-19 22:29:50 +00:00
Tanya Lattner
6d152cd7df Move inliner pass header file. 
llvm-svn: 37664
 2007-06-19 22:29:02 +00:00
Evan Cheng
5e2aabd3ad Avoid if-converting simple block that ends with unconditional branch or fallthrough unless it branches / falls to the 'false' block. Not profitable, may end up increasing code size. 
llvm-svn: 37660
 2007-06-19 21:45:13 +00:00
Evan Cheng
c49382e48f Allow predicated immediate ARM to ARM calls. 
llvm-svn: 37659
 2007-06-19 21:05:09 +00:00
Chris Lattner
de24f583a4 Fix pr1448 
llvm-svn: 37658
 2007-06-19 16:46:48 +00:00
Dan Gohman
bb705e230a Rename ScalarEvolution::deleteInstructionFromRecords to 
deleteValueFromRecords and loosen the types to all it to accept
Value* instead of just Instruction*, since this is what
ScalarEvolution uses internally anyway. This allows more flexibility
for future uses.

llvm-svn: 37657
 2007-06-19 14:28:31 +00:00
Dan Gohman
485cb57eab Pass a SelectionDAG into SDNode::dump everywhere it's used, in prepration 
for needing the DAG node to print pre-legalize extended value types, and
to get better debug messages with target-specific nodes.

llvm-svn: 37656
 2007-06-19 14:13:56 +00:00
Owen Anderson
0eafdcafe7 Handle constants in phi nodes properly. This fixes test/Transforms/GVNPRE/2007-06-18-ConstantInPhi.ll 
llvm-svn: 37655
 2007-06-19 07:35:36 +00:00
Chris Lattner
efa46b445c silence warning when assertions are disabled. 
llvm-svn: 37654
 2007-06-19 06:40:46 +00:00
Owen Anderson
8cb2c3f5df Testcase for instances where a constant only occurs as an operand to a phi node. 
llvm-svn: 37653
 2007-06-19 05:55:01 +00:00
Chris Lattner
55127e17ac don't use binutils 2.17 
llvm-svn: 37652
 2007-06-19 05:52:36 +00:00
Chris Lattner
653c0ccfbe document and hide two options. 
llvm-svn: 37651
 2007-06-19 05:47:49 +00:00
Chris Lattner
81e8a18e7c describe an argument, hide it. 
llvm-svn: 37650
 2007-06-19 05:46:06 +00:00
Chris Lattner
6809b4b4fa silence a bogus warning Duraid ran into. 
llvm-svn: 37649
 2007-06-19 05:43:49 +00:00
Owen Anderson
4a0cde1b5b Add a new testcase for memory corruption issues. 
llvm-svn: 37648
 2007-06-19 05:41:22 +00:00
Owen Anderson
f74f94d859 Be careful to erase values from all of the appropriate sets when they're not needed anymore. This fixes a few more memory-related issues. 
llvm-svn: 37647
 2007-06-19 05:37:32 +00:00
Owen Anderson
d3d1716516 Remember to clear the maximal sets between functions. 
Thanks to Nicholas for valgrinding this.

llvm-svn: 37646
 2007-06-19 04:32:55 +00:00
Owen Anderson
dc858f6498 Refactor GVNPRE to use a much smart method of uniquing value sets, and centralize a lot of the value numbering information. No functionality change. 
llvm-svn: 37645
 2007-06-19 03:31:41 +00:00
Dan Gohman
b60d8a92c9 Replace M_REMATERIALIZIBLE and the newly-added isOtherReMaterializableLoad 
with a general target hook to identify rematerializable instructions. Some
instructions are only rematerializable with specific operands, such as loads
from constant pools, while others are always rematerializable. This hook
allows both to be identified as being rematerializable with the same
mechanism.

llvm-svn: 37644
 2007-06-19 01:48:05 +00:00
Evan Cheng
12b3002673 Replace TargetInstrInfo::CanBeDuplicated() with a M_NOT_DUPLICABLE bit. 
llvm-svn: 37643
 2007-06-19 01:26:51 +00:00
Evan Cheng
4358a7f1e9 Replace CanBeDuplicated() with a M_NOT_DUPLICABLE bit. 
llvm-svn: 37642
 2007-06-19 01:21:41 +00:00
Chris Lattner
e13fac05d7 If a function is vararg, never pass inreg arguments in registers. Thanks to 
Anton for half of this patch.

llvm-svn: 37641
 2007-06-19 00:13:10 +00:00
Chris Lattner
68f9f9fa3b add isVarArg to CCState 
llvm-svn: 37640
 2007-06-19 00:11:09 +00:00
Chris Lattner
6e631d5d4f add isvararg tracking to CCState 
llvm-svn: 37639
 2007-06-19 00:10:25 +00:00
Chris Lattner
cff3e1bbe5 testcase for PR1513 
llvm-svn: 37638
 2007-06-19 00:08:42 +00:00
Evan Cheng
f1397aafd9 New test case: identity operation of RHS / LHS of a VECTOR_SHUFFLE. 
llvm-svn: 37637
 2007-06-19 00:06:08 +00:00
Evan Cheng
80f0d5ae45 Look for VECTOR_SHUFFLE that's identity operation on either LHS or RHS. This can happen before DAGCombiner catches it. 
llvm-svn: 37636
 2007-06-19 00:02:56 +00:00
Tanya Lattner
e662c7928b Update docs for llvm.var.annotation intrinsic. 
llvm-svn: 37635
 2007-06-18 23:42:37 +00:00
Evan Cheng
b752a87db1 Fix some fragile code wrt CFG edge updating. 
llvm-svn: 37634
 2007-06-18 22:44:57 +00:00
Evan Cheng
978058bcd7 Move CorrectExtraCFGEdges() from BranchFolding.cpp to a MachineBasicBlock method. 
llvm-svn: 37633
 2007-06-18 22:43:58 +00:00
Tanya Lattner
fedfcab2ab Modify annotate intrinsic to take 2 additional args: file and line number. 
Fix up Annotate attribute test case.
Fix DebugFilename.c test case to look for right file name.

llvm-svn: 37632
 2007-06-18 22:23:39 +00:00
Chris Lattner
80de50ac63 add helper 
llvm-svn: 37631
 2007-06-18 21:50:49 +00:00
Devang Patel
f57b9f4d5d Fix quotes in debug messages. 
llvm-svn: 37630
 2007-06-18 21:32:29 +00:00
Chris Lattner
5b93ff84b9 make ComputeTopDownOrdering significantly faster and use less stack space 
by making it non-recursive

llvm-svn: 37629
 2007-06-18 21:28:10 +00:00
Dan Gohman
5db3ad4b32 In SCEVAddExpr::get, skip over any cast operands before looking for nested 
add operands after constant operands. The recent change to recognize
sign-extend expressions caused this to be exposed more often.

llvm-svn: 37628
 2007-06-18 19:30:09 +00:00
Anton Korobeynikov
76361958e8 Make BasicAliasAnalysis correctly register itself. Patch by Devang 
llvm-svn: 37627
 2007-06-18 17:13:29 +00:00