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Author SHA1 Message Date
Misha Brukman
b4689d53be Instead of referring to the license file in the 2.3 release, refer to the 
always-current SVN version.

llvm-svn: 61142
 2008-12-17 18:06:53 +00:00
Misha Brukman
e3769b141e Added mention of the RELEASE_24 tag for the 2.4 release. 
llvm-svn: 61138
 2008-12-17 16:27:23 +00:00
Mon P Wang
bc3622287b Fix expansion of vsetcc to set the high bit for true instead of 1. 
llvm-svn: 61129
 2008-12-17 08:49:47 +00:00
Chris Lattner
c6134bffaf insert some sequence points and preincrement an iterator to avoid 
iterator invalidation problems.

llvm-svn: 61124
 2008-12-17 05:42:08 +00:00
Chris Lattner
196c166a06 Enhance heap sra to be substantially more aggressive w.r.t PHI 
nodes.  This allows it to do fairly general phi insertion if a 
load from a pointer global wants to be SRAd but the load is used
by (recursive) phi nodes.  This fixes a pessimization on ppc
introduced by Load PRE.

llvm-svn: 61123
 2008-12-17 05:28:49 +00:00
Dan Gohman
a8796f4908 Double the amount of memory reserved for SUnits. This is a 
temporary workaround for an obscure bug. When node cloning is
used, it is possible that more SUnits will be created, and
if the SUnits std::vector has to reallocate, it will
invalidate all the graph edges.

llvm-svn: 61122
 2008-12-17 04:30:46 +00:00
Dan Gohman
6ee60e3ac3 Use getDepth() and getHeight() instead of accessing the 
Depth and Height members directly, as they may not be
current.

llvm-svn: 61121
 2008-12-17 04:25:52 +00:00
Dan Gohman
dd705ea3e6 Fix the comments for getDepth and getHeight. 
llvm-svn: 61120
 2008-12-17 04:24:23 +00:00
Eli Friedman
4aae828bf8 Fix for PR3225: disable a broken optimization in 
DAGTypeLegalizer::ExpandShiftWithKnownAmountBit.

In terms of restoring the optimization, the best fix here isn't 
obvious... any ideas?

llvm-svn: 61119
 2008-12-17 03:35:17 +00:00
Mikhail Glushenkov
d15a02461a Update also the generated docs. 
llvm-svn: 61118
 2008-12-17 02:47:30 +00:00
Mikhail Glushenkov
90baa08c2b Some enhancements for the 'case' expression. 
Add (error) and (empty).

llvm-svn: 61117
 2008-12-17 02:47:01 +00:00
Dale Johannesen
7a81d1b0ab Clarify that the scale factor from CheckForIVReuse 
can be negative.  Keep track of whether all uses of
an IV are outside the loop.  Some cosmetics; no
functional change.

llvm-svn: 61109
 2008-12-16 22:16:28 +00:00
Dale Johannesen
e348900657 A new dag combine; several permutations of this 
are there under ADD, this one was missing.

llvm-svn: 61107
 2008-12-16 22:13:49 +00:00
Owen Anderson
36aba82416 Add code to renumber split intervals into new vregs. This is disabled for now until I finish working out some iterator invalidation issues. 
llvm-svn: 61104
 2008-12-16 21:35:08 +00:00
Chris Lattner
c4cc4a328f Fix another crash found by inspection. If we have a PHI node merging 
the load multiple times, make sure the check the uses of the PHI to 
ensure they are transformable.

llvm-svn: 61102
 2008-12-16 21:24:51 +00:00
Chris Lattner
8b1f2f76d7 fix a crash found by inspection. 
llvm-svn: 61101
 2008-12-16 21:04:51 +00:00
Eli Friedman
de614f9842 Add a helper to remove a branch and DCE the condition, and use it 
consistently for deleting branches.  In addition to being slightly 
more readable, this makes SimplifyCFG a bit better 
about cleaning up after itself when it makes conditions unused.

llvm-svn: 61100
 2008-12-16 20:54:32 +00:00
Dan Gohman
38316f49bd Eliminate the loop that walks the critical path. Instead, just track the 
position in the critical path during the main instruction walk.  This
eliminates the need for the CritialAntiDep DenseMap.

llvm-svn: 61096
 2008-12-16 19:27:52 +00:00
Bill Wendling
905350a341 Remove empty test. 
llvm-svn: 61095
 2008-12-16 19:07:17 +00:00
Bill Wendling
f807a68f2e Temporarily revert r61019, r61030, and r61040. These were breaking LLVM Release 
builds.

llvm-svn: 61094
 2008-12-16 19:06:48 +00:00
Dan Gohman
f8f5625748 Preserve SourceValue information when lowering produces multiple loads from 
different offsets within the same stack slot.

llvm-svn: 61093
 2008-12-16 18:25:36 +00:00
Evan Cheng
96d87db03b We have decided not to support inline asm where an output operand with a matching input operand with incompatible type (i.e. either one is a floating point and the other is an integer or the sizes of the types differ). SelectionDAGBuild will catch these and exit with an error. 
llvm-svn: 61092
 2008-12-16 18:21:39 +00:00
Oscar Fuentes
9a300fe336 CMake: Added DbgInfoPrinter.cpp to lib/Analysis/CMakeFiles.txt. 
llvm-svn: 61087
 2008-12-16 12:25:04 +00:00
Torok Edwin
453ef5b57c add testcase for -print-dbginfo 
llvm-svn: 61086
 2008-12-16 10:10:23 +00:00
Torok Edwin
9562aa1742 Add -print-dbginfo pass that prints LLVM IR with comments inserted to show 
which source/line a certain BB/instruction comes from, original variable names,
and original (unmangled) C++ name of functions.

llvm-svn: 61085
 2008-12-16 09:09:19 +00:00
Torok Edwin
fe974a7ca9 Add utility functions to search for DbgStopPointInst corresponding to an 
instruction or BasicBlock, and to search for DbgDeclareInst corresponding to a
variable.

llvm-svn: 61084
 2008-12-16 09:07:36 +00:00
Torok Edwin
2e2c464771 use different name for parameter to make it clear that we set DIDescriptor::GV 
llvm-svn: 61083
 2008-12-16 09:06:01 +00:00
Nick Lewycky
1b0fc83809 Generalize support for analyzing loops to include SLE/SGE loop exit conditions 
and support for non-unit strides with signed exit conditions.

llvm-svn: 61082
 2008-12-16 08:30:01 +00:00
Chris Lattner
e35c79577f switch some std::set/std::map to SmallPtrSet/DenseMap. 
llvm-svn: 61081
 2008-12-16 07:34:30 +00:00
Chris Lattner
b3becc5776 fix PR3217: fully cached queries need to be verified against the 
visited set before they are used.  If used, their blocks need to be
added to the visited set so that subsequent queries don't use conflicting
pointer values in the cache result blocks.

llvm-svn: 61080
 2008-12-16 07:10:09 +00:00
Dan Gohman
10eb3ccaeb Enable anti-dependence breaking by default when post-RA scheduling is enabled. 
llvm-svn: 61078
 2008-12-16 06:21:45 +00:00
Dan Gohman
9f37a0296b When breaking an anti-dependency, don't use a register which has seen 
one of its aliases defined. This is conservative, but tricky subreg
corner cases are outside the primary aim of this pass.

llvm-svn: 61077
 2008-12-16 06:20:58 +00:00
Dan Gohman
c3e24d559b Add initial support for back-scheduling address computations, 
especially in the case of addresses computed from loop induction
variables.

llvm-svn: 61075
 2008-12-16 03:35:01 +00:00
Dan Gohman
e2cf452271 Remove some special-case logic in ScheduleDAGSDNodes's 
latency computation code that is no longer needed with the
new method for handling latencies.

llvm-svn: 61074
 2008-12-16 03:31:11 +00:00
Dan Gohman
40a40dd7c1 Fix some register-alias-related bugs in the post-RA scheduler liveness 
computation code. Also, avoid adding output-depenency edges when both
defs are dead, which frequently happens with EFLAGS defs.

Compute Depth and Height lazily, and always in terms of edge latency
values. For the schedulers that don't care about latency, edge latencies
are set to 1.

Eliminate Cycle and CycleBound, and LatencyPriorityQueue's Latencies array.
These are all subsumed by the Depth and Height fields.

llvm-svn: 61073
 2008-12-16 03:25:46 +00:00
Misha Brukman
c6aef75cef * Comply with HTML 4.01 Strict 
* Added code-region markings to code sections to make them stand out
* Added pre.doc_code class to llvm.css to simplify marking code regions

llvm-svn: 61072
 2008-12-16 03:07:49 +00:00
Misha Brukman
129457e460 * Comply with HTML 4.01 Strict standard 
* Converted absolute links to llvm.org/docs to relative links
* Fixed spelling and s/;/:/, as needed

llvm-svn: 61071
 2008-12-16 02:54:22 +00:00
Dan Gohman
67e694b0ea Add a simple target-independent heuristic to allow targets with no 
instruction itinerary data to back-schedule loads.

llvm-svn: 61070
 2008-12-16 02:38:22 +00:00
Dan Gohman
8ddcdef08a Move addPred and removePred out-of-line. 
llvm-svn: 61067
 2008-12-16 01:05:52 +00:00
Dan Gohman
23aae3bba9 Make addPred and removePred return void, since the return value is not 
currently used by anything.

llvm-svn: 61066
 2008-12-16 01:00:55 +00:00
Dan Gohman
d6ad3f6178 This getEdgeAttributes doesn't need a template argument. 
llvm-svn: 61065
 2008-12-16 00:55:00 +00:00
Dan Gohman
399e0b540e Add a getSDep() access function to SUnitIterator to return the 
current SDep.

llvm-svn: 61064
 2008-12-16 00:51:33 +00:00
Dan Gohman
b697738ee4 Reorder some SDep methods. No functionality change. 
llvm-svn: 61063
 2008-12-16 00:48:53 +00:00
Dan Gohman
9ccf4a2a8a SDep's operator== should compare the Latency field too. 
llvm-svn: 61062
 2008-12-16 00:47:19 +00:00
Bill Wendling
efb04fd5a6 Change so that buildit won't need a parent directory with only the build scripts in them. 
llvm-svn: 61061
 2008-12-16 00:42:25 +00:00
Chris Lattner
3ac8ed076a add testcase for r61051 
llvm-svn: 61052
 2008-12-15 21:46:23 +00:00
Chris Lattner
9255745f90 enhance heap-sra to apply to fixed sized array allocations, not just 
variable sized array allocations.

llvm-svn: 61051
 2008-12-15 21:44:34 +00:00
Mon P Wang
bb3c2994f0 Added support for splitting and scalarizing vector shifts. 
llvm-svn: 61050
 2008-12-15 21:44:00 +00:00
Chris Lattner
2356082b5e Use stripPointerCasts. 
llvm-svn: 61047
 2008-12-15 21:20:32 +00:00
Chris Lattner
15ac84e027 minor tweaks for formatting, allow bitcast in ValueIsOnlyUsedLocallyOrStoredToOneGlobal. 
llvm-svn: 61046
 2008-12-15 21:08:54 +00:00