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Author SHA1 Message Date
Daniel Dunbar
034c929118 Twine: Stores kinds as uchar instead of bitfield to be friendlier to the 
optimizer.

llvm-svn: 89278
 2009-11-19 00:04:43 +00:00
Bob Wilson
c61bad9dc7 There should be no need to keep renumbering blocks during tail duplication. 
llvm-svn: 89275
 2009-11-18 23:48:57 +00:00
Bob Wilson
70bfa110eb Fix buildbots. 
llvm-svn: 89274
 2009-11-18 23:30:38 +00:00
Richard Osborne
fc2d5141a4 Add XCore support for indirectbr / blockaddress. 
llvm-svn: 89273
 2009-11-18 23:20:42 +00:00
Douglas Gregor
1c10c07e9c De-bork CMake build 
llvm-svn: 89272
 2009-11-18 23:20:09 +00:00
Bill Wendling
5ab3ea88a2 Attempt #2: 
Place the EH table in the __TEXT section on MachO. It saves space.

llvm-svn: 89270
 2009-11-18 23:18:46 +00:00
Bob Wilson
dccd3bdb4e Tail duplication still needs to iterate. Duplicating new instructions onto 
the tail of a block may make that block a new candidate for duplication.

llvm-svn: 89264
 2009-11-18 22:52:37 +00:00
Bob Wilson
5cb1da935f Add another statistic to measure code size due to tail duplication. 
llvm-svn: 89254
 2009-11-18 22:12:31 +00:00
Jeffrey Yasskin
eaf0187422 Remove spurious @verbatim. Patch by Timo Juhani Lindfors! 
llvm-svn: 89252
 2009-11-18 22:04:44 +00:00
Bill Wendling
fe0d83e1fe Not all ASM has # for comments. 
llvm-svn: 89250
 2009-11-18 21:54:13 +00:00
Jakob Stoklund Olesen
7b5afd4dd6 Fix PR5300. 
When TwoAddressInstructionPass deletes a dead instruction, make sure that all
register kills are accounted for. The 2-addr register does not get special
treatment.

llvm-svn: 89246
 2009-11-18 21:33:35 +00:00
Daniel Dunbar
51400811c2 TableGen: Add initial backend for clang Driver's option parsing. 
llvm-svn: 89245
 2009-11-18 21:29:51 +00:00
Jakob Stoklund Olesen
88ee85149d Allow the machine verifier to be run outside the PassManager. 
Verify LiveVariables information when present.

llvm-svn: 89241
 2009-11-18 20:36:57 +00:00
Jakob Stoklund Olesen
7a31251441 Remove the -early-coalescing option 
llvm-svn: 89240
 2009-11-18 20:36:47 +00:00
Lang Hames
e37121e326 Fixed the in-place spiller and trivial rewriter, which had been broken by the recent SlotIndexes work. 
llvm-svn: 89238
 2009-11-18 20:31:20 +00:00
Viktor Kutuzov
036656936e Added getDefaultSubtargetFeatures method to SubtargetFeatures class which returns a correct feature string for given triple. 
llvm-svn: 89236
 2009-11-18 20:20:05 +00:00
Bob Wilson
39c6d5d3dd Add statistics for tail duplication. 
llvm-svn: 89225
 2009-11-18 19:29:37 +00:00
David Goodwin
6b56e77397 Add ARMv6 itineraries. 
llvm-svn: 89218
 2009-11-18 18:39:57 +00:00
Bob Wilson
6993e5d049 Fix a few places that were missed when we converted to unified syntax. 
llvm-svn: 89214
 2009-11-18 18:10:35 +00:00
Jakob Stoklund Olesen
e8cac54a36 Don't require LiveVariables for PHIElimination. Enable critical edge splitting 
when LiveVariables is available.

The -split-phi-edges is now gone, and so is the hack to disable it when using
the local register allocator. The PHIElimination pass no longer has
LiveVariables as a prerequisite - that is what broke the local allocator.
Instead we do critical edge splitting when possible - that is when
LiveVariables is available.

llvm-svn: 89213
 2009-11-18 18:01:35 +00:00
Daniel Dunbar
8b7b923ac6 Turn LLVM_BUILD_EXAMPLES off by default in CMake builds, to match Makefiles & 
Clang.

llvm-svn: 89211
 2009-11-18 17:42:22 +00:00
Daniel Dunbar
157d7f6596 lit: Fix exclude dirs functionality. 
llvm-svn: 89210
 2009-11-18 17:42:17 +00:00
Nick Lewycky
ac0e7c8aca Fix passing of float arguments through ffi. 
llvm-svn: 89198
 2009-11-18 05:43:15 +00:00
Bob Wilson
6b68bd153a Add a target hook to allow changing the tail duplication limit based on the 
contents of the block to be duplicated.  Use this for ARM Cortex A8/9 to
be more aggressive tail duplicating indirect branches, since it makes it
much more likely that they will be predicted in the branch target buffer.
Testcase coming soon.

llvm-svn: 89187
 2009-11-18 03:34:27 +00:00
Bill Wendling
03a196010e The llvm-gcc front-end and the pass manager use two separate TargetData objects. 
This is probably not confined to *just* these two things.

Anyway, the llvm-gcc front-end may look up the structure layout information for
an abstract type. That information will be stored into a table with the FE's
TD. Instruction combine can come along and also ask for information on that
abstract type, but for a separate TD (the one associated with the pass manager).

After the type is refined, the old structure layout information in the pass
manager's TD file is out of date. If a new type is allocated in the same space
as the old-unrefined type, then the structure type information in the pass
manager's TD file will be wrong, but won't know it.

Fix this by making the TD's structure type information an abstract type user.

llvm-svn: 89176
 2009-11-18 01:03:56 +00:00
Dan Gohman
f3ab031fde Simplify ComputeMultiple so that it doesn't depend on TargetData. 
llvm-svn: 89175
 2009-11-18 00:58:27 +00:00
Jakob Stoklund Olesen
9472aae362 Fix inverted test and add testcase from failing self-host. 
llvm-svn: 89167
 2009-11-18 00:02:18 +00:00
Devang Patel
34b8b72944 Remove dead code. 
llvm-svn: 89156
 2009-11-17 22:39:08 +00:00
Eric Christopher
7a90b50fc6 Add ability to set code model within the execution engine builders 
and creation interfaces.

llvm-svn: 89151
 2009-11-17 21:58:16 +00:00
Jakob Stoklund Olesen
f96b51a084 Remove fragile test. 
llvm-svn: 89150
 2009-11-17 21:52:40 +00:00
Jim Grosbach
2853c74dc9 grammar 
llvm-svn: 89145
 2009-11-17 21:37:04 +00:00
Jim Grosbach
d4db2d58ae Enable arm jumpt table adjustment. 
llvm-svn: 89143
 2009-11-17 21:24:11 +00:00
Jakob Stoklund Olesen
c51ee54bb8 Disable -split-phi-edges to unbreak the buildbots 
llvm-svn: 89142
 2009-11-17 21:23:49 +00:00
Jakob Stoklund Olesen
a314c2c407 Never call UpdateTerminator() when AnalyzeBranch would fail. 
llvm-svn: 89139
 2009-11-17 20:46:00 +00:00
Anton Korobeynikov
6b1a243be8 Forgot to commit test fixes 
llvm-svn: 89138
 2009-11-17 20:38:36 +00:00
Anton Korobeynikov
f8557956d7 Both Darwin as and GNU as violate ARM docs wrt printing of addrmode6 
alignment imm (in the same way). Fix asmprinting for non-darwin platforms.

llvm-svn: 89137
 2009-11-17 20:04:59 +00:00
Evan Cheng
4ec2795a0c Add a WriteAsOperand for MachineBasicBlock so MachineLoopInfo dump looks sane. 
llvm-svn: 89130
 2009-11-17 19:19:59 +00:00
Evan Cheng
e1439535ac Fix comment. 
llvm-svn: 89129
 2009-11-17 19:19:01 +00:00
Jakob Stoklund Olesen
0ca73b9208 Enable -split-phi-edges by default, except when -regalloc=local. 
The local register allocator doesn't like it when LiveVariables is run.
We should also disable edge splitting under -O0, but that has to wait a bit.

llvm-svn: 89125
 2009-11-17 19:15:50 +00:00
Jim Grosbach
1aa8f6c5c7 80-column violations 
llvm-svn: 89123
 2009-11-17 19:05:35 +00:00
Viktor Kutuzov
1452b67541 Added getArchNameForAssembler method to the Triple class for which returns OS and Vendor independent target assembler arch. 
llvm-svn: 89122
 2009-11-17 18:48:27 +00:00
Bob Wilson
fe3a0fccb9 Remove a special case for tail merging that seems to be both broken and 
unnecessary.  It is broken because the "isIdenticalTo" check should be
negated.  If that is fixed, this code causes the CodeGen/X86/tail-opts.ll
test to fail, in the dont_merge_oddly function.  And, I confirmed that the
regression is real -- the generated code is worse.  As far as I can tell,
that tail-opts.ll test is checking for what this code is supposed to handle
and we're doing the right thing anyway.

llvm-svn: 89121
 2009-11-17 18:30:09 +00:00
Evan Cheng
aaa58b7653 Generalize OptimizeLoopTermCond to optimize more loop terminating icmp to use postinc iv. 
llvm-svn: 89116
 2009-11-17 18:10:11 +00:00
Dan Gohman
801e8e8291 Set MadeChange instead of MadeChangeThisIteration. 
llvm-svn: 89114
 2009-11-17 18:04:15 +00:00
Benjamin Kramer
f3f063a58e Revert CPU detection code to return "generic" instead of an empty string in case 
of failure. The x86 target didn't like empty cpu names and broke x86 tests on
non-x86 buildbots.

llvm-svn: 89111
 2009-11-17 17:57:04 +00:00
Jim Grosbach
5851dbf184 Remove trailing whitespace 
llvm-svn: 89110
 2009-11-17 17:53:56 +00:00
Bob Wilson
84ab1a13a3 Update a comment, now that tail duplication happens after other branch 
folding optimizations.

llvm-svn: 89109
 2009-11-17 17:40:31 +00:00
Johnny Chen
81b3815eb2 Set Inst{15-12} (Rd/Rt) to 0b1111 (PC) for BR_JTadd, BR_JTr, and BR_JTm to 
distinguish between them and the more generic instructions (add, mov, and ldr).

llvm-svn: 89108
 2009-11-17 17:17:50 +00:00
Bob Wilson
eaa8a9aa98 Perform tail duplication only once, after tail merging is complete. 
It was too difficult to keep the heuristics for merging and duplication
consistent.

llvm-svn: 89105
 2009-11-17 17:06:18 +00:00
Nuno Lopes
44429689aa add Case() with 5 args 
llvm-svn: 89099
 2009-11-17 15:35:39 +00:00