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Author SHA1 Message Date
Dan Gohman
b4de0f42af Use operator new instead of new char[]. 
llvm-svn: 53066
 2008-07-03 00:53:09 +00:00
Dan Gohman
3a3ea83ef7 Avoid unnecessarily copying APInt objects. 
llvm-svn: 53065
 2008-07-03 00:52:03 +00:00
Dan Gohman
27986beb10 Correct a comment. 
llvm-svn: 53064
 2008-07-03 00:51:05 +00:00
Evan Cheng
67ab36cb9d Use std::replace instead of std::find and push_back. 
llvm-svn: 53063
 2008-07-03 00:28:27 +00:00
Devang Patel
f9e8484756 Undo previous patch. It is not that simple to fix dom info here. 
llvm-svn: 53062
 2008-07-03 00:08:13 +00:00
Evan Cheng
7c3920e692 - Add LiveVariables::replaceKillInstruction. This does a subset of instructionChanged. That is, it only update the VarInfo.kills if the new instruction is known to have the correct dead and kill markers. 
- CommuteInstruction copies kill / dead markers over to new instruction. So use replaceKillInstruction instead.

llvm-svn: 53061
 2008-07-03 00:07:19 +00:00
Evan Cheng
6d84ad83ca commuteInstruction should preserve dead markers. 
llvm-svn: 53060
 2008-07-03 00:04:51 +00:00
Owen Anderson
604f9f722d Make LiveVariables even more optional, by making it optional in the call to TargetInstrInfo::convertToThreeAddressInstruction 
Also, if LV isn't around, then TwoAddr doesn't need to be updating flags, since they won't have been set in the first place.

llvm-svn: 53058
 2008-07-02 23:41:07 +00:00
Dan Gohman
741cda0ac8 Replace a few uses of SelectionDAG::getTargetNode with 
SelectionDAG::SelectNodeTo in the instruction selector. This
updates existing nodes in place instead of creating new ones.

Go back to selecting ISD::DBG_LABEL nodes into
TargetInstrInfo::DBG_LABEL nodes instead of leaving them
unselected, now that SelectNodeTo allows us to update them
in place.

llvm-svn: 53057
 2008-07-02 23:23:19 +00:00
Devang Patel
db4a6944ec Preserve dom info while simplifing loop after the unswitch. 
llvm-svn: 53052
 2008-07-02 22:58:54 +00:00
Eric Christopher
4c3e39e220 Add a couple more helper functions to deal with 
creating global constant strings and pointers
to global constant strings.

llvm-svn: 53051
 2008-07-02 22:57:59 +00:00
Dan Gohman
d9458e2d39 Revert r52988. It broke 254.gap on x86-64. 
llvm-svn: 53050
 2008-07-02 22:12:55 +00:00
Owen Anderson
a420723feb TwoAddressInstructionPass doesn't really require LiveVariables, it just needs to update it if it's already around. 
llvm-svn: 53049
 2008-07-02 21:28:58 +00:00
Chuck Rose III
8e0b9566a3 VStudio x64 build fixes. Looks like the x64 projects got out of date and this brings them up to code. I've built the project with these new vcproj files for win32 and x64 both debug and release. 
llvm-svn: 53047
 2008-07-02 21:02:51 +00:00
Owen Anderson
9f7122a150 Use ADCE instead of just DCE. ADCE will better clean up after jump threading, 
for instance.

llvm-svn: 53045
 2008-07-02 18:42:07 +00:00
Owen Anderson
9a7d657786 Use df_ext_iterator to capture the reachable set without allocating an extra set. 
Also, move large sets and vectors out of instance variables and onto the stack,
and give them more reasonable sizes.

llvm-svn: 53044
 2008-07-02 18:41:09 +00:00
Owen Anderson
0b0017e514 Avoid a redundant call. 
llvm-svn: 53040
 2008-07-02 18:15:31 +00:00
Owen Anderson
e20158affb Add support to ADCE for pruning unreachable blocks. This addresses the final 
part of PR2509.

llvm-svn: 53038
 2008-07-02 18:05:19 +00:00
Mon P Wang
f8524c5deb Make the default min align of CreateStackTemporary to be 1 
llvm-svn: 53036
 2008-07-02 17:50:10 +00:00
Duncan Sands
21e2a711e3 Add a new getMergeValues method that does not need 
to be passed the list of value types, and use this
where appropriate.  Inappropriate places are where
the value type list is already known and may be
long, in which case the existing method is more
efficient.

llvm-svn: 53035
 2008-07-02 17:40:58 +00:00
Owen Anderson
764fe3df94 Use DenseSet rather than SmallPtrSet for the alive set. Using SmallPtrSet 
with a huge "size" parameter is actually quite inefficient.

llvm-svn: 53034
 2008-07-02 17:32:04 +00:00
Owen Anderson
dd29406f31 Have DenseSet::insert return a bool indicating whether the insertion succeeded or not. 
llvm-svn: 53033
 2008-07-02 17:29:59 +00:00
Owen Anderson
5747d627e0 A better fix for PR2503 that doesn't pessimize GVN in the presence of unreachable blocks. 
llvm-svn: 53032
 2008-07-02 17:20:16 +00:00
Mon P Wang
55f4371807 Fixed problem in EmitStackConvert where the source and target type 
have different alignment by creating a stack slot with the max
alignment of source and target type.

llvm-svn: 53031
 2008-07-02 17:07:12 +00:00
Chris Lattner
8bcad39c9a instead of aborting on shifts of i1, just implicitly fold them. 
The dag combiner can produce a shift of i1 when folding icmp i1's.

llvm-svn: 53030
 2008-07-02 17:01:57 +00:00
Matthijs Kooijman
598319ec2b Update link to testing guide to use the new title. 
llvm-svn: 53018
 2008-07-02 13:54:58 +00:00
Duncan Sands
b7d8348f0d Fix typo compounded by a cut-and-pasto. 
llvm-svn: 53012
 2008-07-02 10:03:53 +00:00
Duncan Sands
5d5f1e800d Let AnalyzeNewNode take care of calling ExpungeNode. 
This makes sure that all new nodes are expunged, not
just those the top node of a new subtree.

llvm-svn: 53011
 2008-07-02 09:56:41 +00:00
Evan Cheng
3921085102 - Use a faster priority comparison function if -fast. 
- Code clean up.

llvm-svn: 53010
 2008-07-02 09:23:51 +00:00
Chris Lattner
441571cc05 optimize StringMap::clear 
llvm-svn: 53009
 2008-07-02 05:30:45 +00:00
Chris Lattner
06545d1c4a Add a new (simple) StringMap::clear method, patch by Pratik 
Solanki!

llvm-svn: 53008
 2008-07-02 05:26:32 +00:00
Devang Patel
5d8e832471 reuse vectors. 
llvm-svn: 53007
 2008-07-02 01:44:29 +00:00
Devang Patel
9140e998b4 Fix comment. 
llvm-svn: 53006
 2008-07-02 01:31:19 +00:00
Devang Patel
68d9a25bcd Preserve loop data so that it is not fetched everytime it is needed. 
Keep track of currentLoop.

llvm-svn: 53005
 2008-07-02 01:18:13 +00:00
Bill Wendling
83caf5a9d5 Use the canonical form for getting an empty structure. 
llvm-svn: 53003
 2008-07-02 00:50:02 +00:00
Bill Wendling
aa45e38a17 Sorry. I couldn't sleep at night knowing I put these ugly casts into the source tree. 
llvm-svn: 53001
 2008-07-02 00:35:47 +00:00
Ted Kremenek
41502657f7 Implemented operator!= for the ImmutableList iterator. 
llvm-svn: 52998
 2008-07-02 00:06:55 +00:00
Owen Anderson
1530481dd3 Add a version of AddString that takes a const char* so we can avoid extraneous 
conversions to std::string.

llvm-svn: 52995
 2008-07-01 23:49:59 +00:00
Bill Wendling
27c38cee90 Darwin doesn't need exception handling information for the "move" info when 
debug information is being output, because it's leet!

llvm-svn: 52994
 2008-07-01 23:34:48 +00:00
Evan Cheng
5389352c98 Avoid creating expensive comment string if it's not going to be printed. 
llvm-svn: 52992
 2008-07-01 23:18:29 +00:00
Owen Anderson
b258a71a37 No need to use std::distance. We can just count the number of operands 
much more cheaply.

llvm-svn: 52990
 2008-07-01 22:34:11 +00:00
Ted Kremenek
0b662363f9 Added partial specialization of FoldingSetTrait for pointers. 
llvm-svn: 52989
 2008-07-01 22:30:13 +00:00
Evan Cheng
508e82fcfc Simplify addRegisterKilled and addRegisterDead. 
llvm-svn: 52988
 2008-07-01 22:21:21 +00:00
Bill Wendling
c695823456 - Update comments. 
- Don't use GlobalVariable::LinkageTypes when unsigned works.

llvm-svn: 52987
 2008-07-01 22:08:01 +00:00
Dale Johannesen
51edab312c Considering predecessors of exit blocks gets 
us a little more tail merging.

llvm-svn: 52986
 2008-07-01 21:50:49 +00:00
Dale Johannesen
d7ea0ac4fd Fix longstanding thinko: don't exclude 
predessors of exit blocks from tail merging
consideration.

llvm-svn: 52985
 2008-07-01 21:50:14 +00:00
Devang Patel
51aec7ffb8 Fix dom tree compare. Don't forget to compare children! 
llvm-svn: 52984
 2008-07-01 21:41:00 +00:00
Devang Patel
a4a94290b8 Disable dom info verifier by default. 
llvm-svn: 52983
 2008-07-01 21:36:11 +00:00
Evan Cheng
8a30a09180 Eliminate a compile time warning. 
llvm-svn: 52982
 2008-07-01 21:35:46 +00:00
Owen Anderson
8564cd9dfe Add a version of AsmPrinter::EOL that takes a const char* so that we don't have to do as many implicit std::string constructions. 
Unfortunately, this doesn't appear to translate to a real speedup in practice.

llvm-svn: 52981
 2008-07-01 21:16:27 +00:00