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Author SHA1 Message Date
Duncan Sands
ececf99c07 Linux also does not require exception handling 
moves in order to get correct debug info.  Since
I can't imagine how any target could possibly
be any different, I've just stripped out the
option: now all the world's like Darwin!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53134 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-04 09:55:48 +00:00
Bill Wendling
c04f46567c Don't return std::vector by value, but pass it in by reference to be filled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53123 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 23:13:02 +00:00
Bill Wendling
10fff6078a Revert my previous check-in that split up MachineModuleInfo. It turns out to 
slow the compiler down at -O0 some 30% or more. Ooops.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53120 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 22:53:42 +00:00
Devang Patel
a93ae711a9 Provide a hook to set the code generation debug options to investigate lto failures. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53119 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 22:53:14 +00:00
Evan Cheng
a122f2f51e Backed out 53031. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53110 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 18:20:14 +00:00
Evan Cheng
cb2627395d Back out 53091 for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53109 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 18:11:29 +00:00
Owen Anderson
0ae33ef202 Use information already present in the ValueTable to fast-fail when we know there won't be a value number match. This speeds up GVN on a case where there are very few redundancies by ~25%. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53108 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 17:44:33 +00:00
Devang Patel
77a01136ff Do not try to update dominator info while manipulating CFG. This code does not handle all cases and keeps invalid dom info around some cases, which misleads other passes down stream. 
Right now, dom info is recaluclated in the end if the loop is switched.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53106 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 17:37:52 +00:00
Owen Anderson
9da02b844f Remove the ability for ADCE to remove unreachable blocks in loop nests, because, as Eli pointed out, SimplifyCFG already does this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53104 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 17:21:41 +00:00
Evan Cheng
9f1c8317a4 - Remove calls to copyKillDeadInfo which is an N^2 function. Instead, propagate kill / dead markers as new instructions are constructed in foldMemoryOperand, convertToThressAddress, etc. 
- Also remove LiveVariables::instructionChanged, etc. Replace all calls with cheaper calls which update VarInfo kill list.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53097 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 09:09:37 +00:00
Evan Cheng
f9d0318950 isel load folding is disabled at -fast. Now hoist the check up to the top level to save some time. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53096 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 08:39:51 +00:00
Matthijs Kooijman
10b9de62ff Add newline at the end of Constants.cpp. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53092 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 07:46:41 +00:00
Anton Korobeynikov
f550f472ee llvm-gcc sometimes marks external declarations hidden, because intializers are 
processed separately. Honour such situation and emit PIC relocations properly
in such case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53091 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 07:43:14 +00:00
Bill Wendling
38976dc394 Remove unused function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53090 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 07:10:03 +00:00
Devang Patel
98260a474c Preserve dom info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53089 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 07:04:22 +00:00
Devang Patel
70c09c54b1 Keep track of inherited analysis (e.g. dominator tree). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53088 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 07:02:30 +00:00
Devang Patel
f31b3bbd10 Remove extra FIXME 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53087 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 06:50:04 +00:00
Devang Patel
4be7d294f8 Reconstruct dom info, if loop is unswitched. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53086 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 06:48:21 +00:00
Devang Patel
b76247b8b1 LoopUnswitch does not preserve dominator info in all cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53085 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 05:55:03 +00:00
Dan Gohman
2ebc11ac6d Reapply r52988, "Simplify addRegisterKilled and addRegisterDead." The 
254.gap failure was not due to this mod.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53068 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 01:18:51 +00:00
Dan Gohman
08c09496c2 Use operator new instead of new char[]. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53067 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 00:59:36 +00:00
Dan Gohman
8de552d6f3 Use operator new instead of new char[]. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53066 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 00:53:09 +00:00
Dan Gohman
9b44c1f2a0 Avoid unnecessarily copying APInt objects. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53065 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 00:52:03 +00:00
Dan Gohman
ce3c413e07 Correct a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53064 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 00:51:05 +00:00
Evan Cheng
5b9f60bc22 Use std::replace instead of std::find and push_back. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53063 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 00:28:27 +00:00
Devang Patel
825cb98d9a Undo previous patch. It is not that simple to fix dom info here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53062 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 00:08:13 +00:00
Evan Cheng
be04dc1413 - 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53061 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 00:07:19 +00:00
Evan Cheng
457b88fb95 commuteInstruction should preserve dead markers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53060 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-03 00:04:51 +00:00
Owen Anderson
f660c171c8 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53058 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 23:41:07 +00:00
Dan Gohman
cd920d9ecf 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53057 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 23:23:19 +00:00
Devang Patel
501e763dfe Preserve dom info while simplifing loop after the unswitch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53052 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 22:58:54 +00:00
Eric Christopher
9bd64ea1d9 Add a couple more helper functions to deal with 
creating global constant strings and pointers
to global constant strings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53051 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 22:57:59 +00:00
Dan Gohman
8b69135f05 Revert r52988. It broke 254.gap on x86-64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53050 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 22:12:55 +00:00
Owen Anderson
802af11460 TwoAddressInstructionPass doesn't really require LiveVariables, it just needs to update it if it's already around. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53049 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 21:28:58 +00:00
Chuck Rose III
d3f506a53a 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. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53047 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 21:02:51 +00:00
Owen Anderson
735e6eabf1 Use ADCE instead of just DCE. ADCE will better clean up after jump threading, 
for instance.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53045 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 18:42:07 +00:00
Owen Anderson
ea6462bfd0 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53044 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 18:41:09 +00:00
Owen Anderson
cb29a4f66a Avoid a redundant call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53040 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 18:15:31 +00:00
Owen Anderson
77d76b7ef7 Add support to ADCE for pruning unreachable blocks. This addresses the final 
part of PR2509.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53038 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 18:05:19 +00:00
Mon P Wang
6ed2d1ecdb Make the default min align of CreateStackTemporary to be 1 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53036 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 17:50:10 +00:00
Duncan Sands
4bdcb61af3 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53035 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 17:40:58 +00:00
Owen Anderson
2c04b0da2b Use DenseSet rather than SmallPtrSet for the alive set. Using SmallPtrSet 
with a huge "size" parameter is actually quite inefficient.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53034 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 17:32:04 +00:00
Owen Anderson
93ee2fd7da Have DenseSet::insert return a bool indicating whether the insertion succeeded or not. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53033 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 17:29:59 +00:00
Owen Anderson
f2aa160b35 A better fix for PR2503 that doesn't pessimize GVN in the presence of unreachable blocks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53032 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 17:20:16 +00:00
Mon P Wang
bee98c66c0 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53031 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 17:07:12 +00:00
Chris Lattner
349db1738d 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53030 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 17:01:57 +00:00
Matthijs Kooijman
9d3edca443 Update link to testing guide to use the new title. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53018 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 13:54:58 +00:00
Duncan Sands
8dd5af562b Fix typo compounded by a cut-and-pasto. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53012 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 10:03:53 +00:00
Duncan Sands
3a38e5e3c4 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53011 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 09:56:41 +00:00
Evan Cheng
c6be777208 - Use a faster priority comparison function if -fast. 
- Code clean up.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53010 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-07-02 09:23:51 +00:00