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082b08f33a
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23599 Commits

Author SHA1 Message Date
Dan Gohman
082b08f33a Use a simpler but equivalent form of RecordSource. 
llvm-svn: 52931
 2008-06-30 22:21:03 +00:00
Evan Cheng
3ec3837c38 Add timing report for various sub-passes under SelectionDAGISel. 
llvm-svn: 52930
 2008-06-30 22:10:09 +00:00
Dan Gohman
c8c04b1ff4 std::ostream and std::string microoptimizations for asm printing. 
llvm-svn: 52929
 2008-06-30 22:03:41 +00:00
Dan Gohman
9997cc353f Use reserve. 
SelectionDAG::allnodes_size is linear, but that doesn't appear to
outweigh the benefit of reducing heap traffic. If it does become a
problem, we should teach SelectionDAG to keep a count of how many
nodes are live, because there are several other places where that
information would be useful as well.

llvm-svn: 52926
 2008-06-30 21:04:06 +00:00
Dan Gohman
e58f07e5d6 Update comments to new-style syntax. 
llvm-svn: 52925
 2008-06-30 21:00:56 +00:00
Dan Gohman
6cc648891b Rename ISD::LOCATION to ISD::DBG_STOPPOINT to better reflect its 
purpose, and give it a custom SDNode subclass so that it doesn't
need to have line number, column number, filename string, and
directory string, all existing as individual SDNodes to be the
operands.

This was the only user of ISD::STRING, StringSDNode, etc., so
remove those and some associated code.

This makes stop-points considerably easier to read in
-view-legalize-dags output, and reduces overhead (creating new
nodes and copying std::strings into them) on code containing
debugging information.

llvm-svn: 52924
 2008-06-30 20:59:49 +00:00
Evan Cheng
3f664b6fd3 Split scheduling from instruction selection. 
llvm-svn: 52923
 2008-06-30 20:45:06 +00:00
Dale Johannesen
30d136e2c6 No need to align the stack if there are no stack 
objects.  Fixes a couple of tests on Linux.

llvm-svn: 52921
 2008-06-30 20:40:16 +00:00
Evan Cheng
a83d69e3b9 Remove unneeded include. 
llvm-svn: 52920
 2008-06-30 20:38:22 +00:00
Dan Gohman
295abfe228 Replace some std::vectors that showed up in heap profiling with 
SmallVectors. Change the signature of TargetLowering::LowerArguments
to avoid returning a vector by value, and update the two targets
which still use this directly, Sparc and IA64, accordingly.

llvm-svn: 52917
 2008-06-30 20:31:15 +00:00
Dan Gohman
62c0b69aec Correct the allocation size for CCState's UsedRegs member, which 
only needs one bit for each register. UsedRegs is a SmallVector
sized at 16, so this eliminates a heap allocation/free for every
call and return processed by Legalize on most targets.

llvm-svn: 52915
 2008-06-30 20:25:31 +00:00
Devang Patel
5b8e75e2fe Move dominator info printer into tool/opt/GraphPrinters.cpp 
llvm-svn: 52907
 2008-06-30 17:32:58 +00:00
Duncan Sands
93d7b1b4fa ExpungeNode is only needed for new nodes! This 
fixes CodeGen/PowerPC/2008-06-19-LegalizerCrash.ll
when using the new LegalizeTypes infrastructure.

llvm-svn: 52903
 2008-06-30 16:43:45 +00:00
Duncan Sands
c68385d4b5 Support for VAARG. As noted in a comment, this is 
wrong for types like x86 long double and i1, but
no worse than what is done in LegalizeDAG.

llvm-svn: 52898
 2008-06-30 13:55:15 +00:00
Duncan Sands
a706115957 Support for promoting select_cc operands. 
llvm-svn: 52895
 2008-06-30 11:50:11 +00:00
Duncan Sands
c882a4eba9 Revert the SelectionDAG optimization that makes 
it impossible to create a MERGE_VALUES node with
only one result: sometimes it is useful to be able
to create a node with only one result out of one of
the results of a node with more than one result, for
example because the new node will eventually be used
to replace a one-result node using ReplaceAllUsesWith,
cf X86TargetLowering::ExpandFP_TO_SINT.  On the other
hand, most users of MERGE_VALUES don't need this and
for them the optimization was valuable.  So add a new
utility method getMergeValues for creating MERGE_VALUES
nodes which by default performs the optimization.
Change almost everywhere to use getMergeValues (and
tidy some stuff up at the same time).

llvm-svn: 52893
 2008-06-30 10:19:09 +00:00
Evan Cheng
2005804de6 - Re-apply 52748 and friends with fix. GetConstantStringInfo() returns an empty string for ConstantAggregateZero case which surprises selectiondag. 
- Correctly handle memcpy from constant string which is zero-initialized.

llvm-svn: 52891
 2008-06-30 07:31:25 +00:00
Chris Lattner
95fecdd63a Implement split and scalarize for SELECT_CC, fixing PR2504 
llvm-svn: 52887
 2008-06-30 02:43:01 +00:00
Nick Lewycky
d63159dcd4 Add a value range analysis that lazily computes ranges using ScalarEvolutions. 
llvm-svn: 52885
 2008-06-30 00:04:21 +00:00
Anton Korobeynikov
6f260767ec Revert (52748 and friends): 
Move GetConstantStringInfo to lib/Analysis. Remove
string output routine from Constant. Update all
callers. Change debug intrinsic api slightly to
accomodate move of routine, these now return values
instead of strings.

This unbreaks llvm-gcc bootstrap.

llvm-svn: 52884
 2008-06-29 17:57:03 +00:00
Anton Korobeynikov
9e8c154272 Start refactoring of asmprinters: provide a TAI hook, which will select a 'section kind' for a global. 
llvm-svn: 52868
 2008-06-28 13:45:57 +00:00
Anton Korobeynikov
0b708e559e Unbreak 
llvm-svn: 52866
 2008-06-28 11:10:06 +00:00
Anton Korobeynikov
8562255056 Temporary rever invalid commit 
llvm-svn: 52865
 2008-06-28 11:09:48 +00:00
Anton Korobeynikov
ea88d91267 Move printing of module-level GVs into dedicated helper 
llvm-svn: 52864
 2008-06-28 11:09:32 +00:00
Anton Korobeynikov
77c3528f69 Use common naming convention 
llvm-svn: 52863
 2008-06-28 11:09:17 +00:00
Anton Korobeynikov
2331efee7e Factor out stuff into helper function 
llvm-svn: 52862
 2008-06-28 11:09:01 +00:00
Anton Korobeynikov
908c1fab55 Cleanup 
llvm-svn: 52861
 2008-06-28 11:08:44 +00:00
Anton Korobeynikov
adec555f96 Remove X86SharedAsmPrinter 
llvm-svn: 52860
 2008-06-28 11:08:27 +00:00
Anton Korobeynikov
dcc6a8314a whitespace cleanup 
llvm-svn: 52859
 2008-06-28 11:08:09 +00:00
Anton Korobeynikov
03a62267fe Make intel asmprinter child of generic asmprinter, not x86 shared asm printer. This leads to some code duplication, which will be resolved later. 
llvm-svn: 52858
 2008-06-28 11:07:54 +00:00
Anton Korobeynikov
b75aeb6b1a Cleanup 
llvm-svn: 52857
 2008-06-28 11:07:35 +00:00
Anton Korobeynikov
f4017f7d50 Whitespace cleanup 
llvm-svn: 52856
 2008-06-28 11:07:18 +00:00
Chris Lattner
2deb9ae6ad Really fix the bootstrap failure. 
llvm-svn: 52854
 2008-06-28 06:24:50 +00:00
Chris Lattner
090d81df5e Add back the capability to include nul characters in strings with 
GetConstantStringInfo.  This will hopefully restore llvm-gcc to 
happy bootstrap land.

llvm-svn: 52851
 2008-06-28 05:33:32 +00:00
Chris Lattner
98b286ff98 Tighten up checking. 
llvm-svn: 52850
 2008-06-28 04:37:04 +00:00
Dan Gohman
6b87f869e4 When folding a bitcast into a load or store, preserve the alignment 
information of the original load or store, which is checked to be
at least as good, and possibly better.

llvm-svn: 52849
 2008-06-28 00:45:22 +00:00
Seo Sanghyeon
12944690d5 Fix GetMainExecutable. Patch by Sam Bishop. 
llvm-svn: 52847
 2008-06-27 22:55:30 +00:00
Evan Cheng
36adcb1eea Looks like this condition is inverted. 
llvm-svn: 52841
 2008-06-27 22:11:49 +00:00
Chris Lattner
8e2bd43f29 implement some fixme's by making "autorenaming" in the value symbol table not 
thrash the heap with string stuff (e.g. utostr).

llvm-svn: 52838
 2008-06-27 21:26:26 +00:00
Chris Lattner
5c75711282 simplify some code to avoid string thrashing. 
llvm-svn: 52837
 2008-06-27 21:25:24 +00:00
Anton Korobeynikov
e48fe3dde8 Use StringSet instead of std::set<std::string> 
llvm-svn: 52836
 2008-06-27 21:22:49 +00:00
Chris Lattner
6b3b22747a Add a new version of Module::getFunction that takes a const char* instead 
of a std::string.  This avoids copying the string to the heap in common
cases.  Patch by Pratik Solanki!

llvm-svn: 52834
 2008-06-27 21:09:10 +00:00
Devang Patel
d5faa747e9 Add dominator info printer pass. 
llvm-svn: 52829
 2008-06-27 16:43:21 +00:00
Anton Korobeynikov
eb63554d81 Provide correct encoding for PPC LWARX instructions. 
Patch by Gary Benson!

llvm-svn: 52828
 2008-06-27 16:10:20 +00:00
Bill Wendling
39cc6881e1 Reduce number of times .size() is called on a vector. Rename some variables to 
match normal naming scheme.

llvm-svn: 52820
 2008-06-27 07:13:44 +00:00
Owen Anderson
e0604d46c2 Use a SmallSet when we can to reduce memory allocations. 
This speeds up a particular testcase from 0.0302s to 0.0222s in LiveVariables.

llvm-svn: 52819
 2008-06-27 07:05:59 +00:00
Owen Anderson
59ed35b2c2 Cache subregister relationships in a set in TargetRegisterInfo to allow faster lookups. 
This speeds up LiveVariables from 0.6279s to 0.6165s on kimwitu++.

llvm-svn: 52818
 2008-06-27 06:56:04 +00:00
Chris Lattner
c94b39d65c fix the regressions from Eric's patch by making GetConstantStringInfo 
tolerate a non-nul-terminated string, and handling a direct global 
reference.

llvm-svn: 52813
 2008-06-27 03:36:51 +00:00
Chris Lattner
635da8cff5 simplify this check, GetConstantStringInfo validates that a 
global is constant already.  No functionality change.

llvm-svn: 52812
 2008-06-27 03:18:41 +00:00
Chris Lattner
f40ef5f964 when linking globals, make sure to preserve the address space of the global. 
llvm-svn: 52810
 2008-06-27 03:10:24 +00:00