Owen Anderson
4bc737c5ef
Add trivial support for the invariance intrinsics to memdep. This logic is
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purely local for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85378 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 06:18:42 +00:00
Chris Lattner
50b136dae9
add bitcode reader support for blockaddress. We can now fully
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round trip blockaddress through .ll and .bc files, so add a testcase.
There are still a bunch of places in the optimizer and other places
that need to be updated to work with these constructs, but at least
the basics are in now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85377 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 05:53:48 +00:00
Chris Lattner
837e04a8bf
bitcode writer support for blockaddress.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85376 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 05:24:40 +00:00
Chris Lattner
0eeb913aa1
Previously, all operands to Constant were themselves constant.
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In the new world order, BlockAddress can have a BasicBlock operand.
This doesn't permute much, because if you have a ConstantExpr (or
anything more specific than Constant) we still know the operand has
to be a Constant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85375 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 05:14:34 +00:00
Chris Lattner
5d81befc21
'static const void *X = &&y' can only be put in the
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readonly section if a reference to the containing function
is valid in the readonly section.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85370 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 04:12:16 +00:00
Dan Gohman
6688d61797
Rewrite SelectionDAG::isPredecessorOf to be iterative instead of
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recursive to avoid consuming extraordinary amounts of stack space
when processing tall graphs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85369 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 03:44:30 +00:00
Chris Lattner
09d9ef4122
full asmparser support for blockaddress. We can now do:
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$ llvm-as foo.ll -d -disable-output
which reads and prints the .ll file. BC encoding is the
next project. Testcase will go in once that works.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85368 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 03:39:23 +00:00
Chris Lattner
73050e1c38
asmprinter support for BlockAddress.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85367 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 03:38:12 +00:00
Chris Lattner
1e0dc8e123
when we tear down a module, we need to be careful to
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zap BlockAddress values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85366 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 03:37:35 +00:00
Dan Gohman
589f1f5a43
Teach MachineLICM to unfold loads from constant memory from
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otherwise unhoistable instructions in order to allow the loads
to be hoisted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85364 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 03:21:57 +00:00
Evan Cheng
39382427f1
Use fconsts and fconstd to materialize small fp constants.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85362 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 01:44:26 +00:00
Evan Cheng
a1eaa3c52b
Add a second ValueType argument to isFPImmLegal.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85361 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 01:43:28 +00:00
Dan Gohman
a104d1eab2
Mark dead physregdefs dead immediately. This helps MachineSink and
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MachineLICM and other things which run before LiveVariables is run.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85360 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 01:13:53 +00:00
Dan Gohman
83f6120c9a
Allow constants of different types to share constant pool entries
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if they have compatible encodings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85359 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 01:12:16 +00:00
Evan Cheng
c5a75523ef
Remove getIEEEFloatParts and getIEEEDoubleParts. They are not needed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85358 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 01:08:17 +00:00
Dan Gohman
aa123224c4
Update SystemZ to use PSW following the way x86 uses EFLAGS. Besides
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eliminating a use of MVT::Flag, this is needed for an upcoming CodeGen
change.
This unfortunately requires SystemZ to switch to the list-burr
scheduler, in order to handle the physreg defs properly, however
that's what LLVM has available at this time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85357 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 00:55:57 +00:00
Bob Wilson
04ea6e5150
Add an indirect branch pattern for ARM. Testcase will be coming soon.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85355 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 00:37:03 +00:00
Chris Lattner
ab21db79ef
rename indbr -> indirectbr to appease the residents of #llvm.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85351 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 00:19:10 +00:00
Chris Lattner
2ee11eccdd
IR support for the new BlockAddress constant kind. This is
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untested and there is no way to use it, next up: doing battle
with asmparser.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85349 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-28 00:01:44 +00:00
Bob Wilson
cd4f04d6bc
Record CodeGen optimization level in the BranchFolding pass so that we can
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use it to control tail merging when there is a tradeoff between performance
and code size. When there is only 1 instruction in the common tail, we have
been merging. That can be good for code size but is a definite loss for
performance. Now we will avoid tail merging in that case when the
optimization level is "Aggressive", i.e., "-O3". Radar 7338114.
Since the IfConversion pass invokes BranchFolding, it too needs to know
the optimization level. Note that I removed the RegisterPass instantiation
for IfConversion because it required a default constructor. If someone
wants to keep that for some reason, we can add a default constructor with
a hard-wired optimization level.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85346 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 23:49:38 +00:00
Jeffrey Yasskin
03236140fa
Rename lib/VMCore/ConstantsContext.h:ValueMap<> to ConstantUniqueMap<> to avoid
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colliding with llvm/ADT/ValueMap.h:ValueMap<>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85344 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 23:45:55 +00:00
Bill Wendling
c872e9c07d
Add new note.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85341 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 23:30:07 +00:00
Lang Hames
1239c9656b
Fixed a bug in the coalescer where intervals were occasionally merged despite a real interference. This fixes rdar://problem/7157961.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85338 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 23:16:58 +00:00
Jim Grosbach
a6a99b4e16
Enable virtual register based frame index scavenging by default for ARM & T2.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85335 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 22:52:29 +00:00
Bill Wendling
5a56927345
Move and clarify note.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85334 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 22:48:31 +00:00
Jim Grosbach
3dab277857
Infrastructure for dynamic stack realignment on ARM. For now, this is off by
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default behind a command line option. This will enable better performance for
vectors on NEON enabled processors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85333 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 22:45:39 +00:00
Bill Wendling
de020736c0
Note corrected.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85332 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 22:43:24 +00:00
Bill Wendling
d8499c9b7f
Modify note.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85331 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 22:40:45 +00:00
Bill Wendling
1ff2c485e2
Add a note.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85329 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 22:34:43 +00:00
Devang Patel
50b6e33584
Factor out redundancy from clone() implementations.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85327 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 22:16:29 +00:00
Dan Gohman
eef55dc3fd
Update the MachineBasicBlock CFG for an indirect branch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85325 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 22:10:34 +00:00
Dan Gohman
64825153a2
Add CodeGen support for indirect branches.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85323 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 21:56:26 +00:00
Chris Lattner
7b876e4644
make the build build.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85319 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 21:43:39 +00:00
Evan Cheng
99ebfa5f6c
Add new APFloat methods that return sign, exp, and mantissa of ieee float and double values.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85318 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 21:35:42 +00:00
Chris Lattner
2688bcbee1
Random updates to passes for indbr, I need blockaddress before I can do much more.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85316 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 21:27:42 +00:00
Chris Lattner
627b470981
cppbackend support for indbr
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85312 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 21:24:48 +00:00
Chris Lattner
f0dca28da7
CBE support for indbr.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85311 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 21:21:06 +00:00
Johnny Chen
90d7dcfdd9
Similar to r85280, do not clear the "S" bit for RSBri and RSBrs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85299 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 20:51:49 +00:00
Devang Patel
bdf45cbe15
Do not held on to DenseMap slot accross map insertion. The insertion may cause the map to grow rending the slot invalid.
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Use this opportunity to use ValueMap instead of DenseMap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85298 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 20:47:17 +00:00
Johnny Chen
eadeffb306
Set condition code bits of BL and BLr9 to 0b1110 (ALways) to distinguish between
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BL_pred and BLr9_pred.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85297 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 20:45:15 +00:00
Chris Lattner
98eef869ae
don't use stdio
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85296 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 20:42:54 +00:00
Jeffrey Yasskin
dc85724f70
Change the JIT to compile eagerly by default as agreed in
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http://llvm.org/PR5184 , and beef up the comments to describe what both options
do and the risks of lazy compilation in the presence of threads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85295 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 20:30:28 +00:00
Victor Hernandez
f006b183e2
Rename MallocFreeHelper as MemoryBuiltins
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85286 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 20:05:49 +00:00
Evan Cheng
eb2f969a4d
Do away with addLegalFPImmediate. Add a target hook isFPImmLegal which returns true if the fp immediate can be natively codegened by target.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85281 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 19:56:55 +00:00
Bob Wilson
f3b0d1a555
Do not clear the "S" bit for RSCri and RSCrs. They inherit from the "sI"
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instruction format that already takes care of setting this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85280 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 19:52:03 +00:00
Chris Lattner
f9be95f867
add enough support for indirect branch for the feature test to pass
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(assembler,asmprinter, bc reader+writer) and document it. Codegen
currently aborts on it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85274 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 19:13:16 +00:00
Johnny Chen
76b39e88e4
Explicitly specify 0b00, i.e, zero rotation, as the rotate filed (Inst{11-10})
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for the r/rr fragment of the multiclass AI_unary_rrot/AI_bin_rrot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85271 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 18:44:24 +00:00
Sanjiv Gupta
e70b897126
Remove unnecessary gotos to fall-thru successors.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85257 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 17:40:24 +00:00
Johnny Chen
6a3b5eec89
Test commit. Added '.' to the comment line.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85255 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 17:25:15 +00:00
Chris Lattner
f3523592b2
Type.h doesn't need to #include LLVMContext.h
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85254 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 17:08:31 +00:00
Chris Lattner
75c478a96a
pseudosourcevalue is also still using getGlobalContext(), so it isn't
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thread safe either.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85253 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 17:02:08 +00:00
Chris Lattner
1995051395
apparently the X86 JIT isn't fully contextized, it is still using getGlobalContext() :(
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85252 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 17:01:03 +00:00
Rafael Espindola
f87611272b
Correctly align double arguments in the stack.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85235 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 14:09:44 +00:00
Chris Lattner
c581acbbba
Fix a pretty serious misfeature of the inliner: if it inlines a function
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with multiple return values it inserts a PHI to merge them all together.
However, if the return values are all the same, it ends up with a pointless
PHI and this pointless PHI happens to really block SRoA from happening in
at least a silly C++ example written by Doug, but probably others. This
fixes rdar://7339069.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85206 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 05:39:41 +00:00
Mike Stump
8138122a3f
VS build fix, patch by Marius Wachtler.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85197 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 02:14:13 +00:00
Jeffrey Yasskin
ee4eb33c25
Fix OProfileJITEventListener after r85182.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85192 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 01:06:51 +00:00
Eric Christopher
7b5e61707a
Add objectsize intrinsic and hook it up through codegen. Doesn't
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do anything than return "I don't know" at the moment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85189 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 00:52:25 +00:00
Evan Cheng
dd22a45acc
Now VFP instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85186 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 00:20:49 +00:00
Dan Gohman
7f712a1987
Add braces to avoid ambiguous else.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85185 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 00:11:02 +00:00
Evan Cheng
699bebac4f
Change Thumb1 and Thumb2 instructions to separate opcode from operands with a tab instead of a space.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85184 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 00:08:59 +00:00
Jeffrey Yasskin
7a9034c4db
Automatically do the equivalent of freeMachineCodeForFunction(F) when F is
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being destroyed. This allows users to run global optimizations like globaldce
even after some functions have been jitted.
This patch also removes the Function* parameter to
JITEventListener::NotifyFreeingMachineCode() since it can cause that to be
called when the Function is partially destroyed. This change will be even more
helpful later when I think we'll want to allow machine code to actually outlive
its Function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85182 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-27 00:03:05 +00:00
Victor Hernandez
f2becca90b
Rename MallocHelper as MallocFreeHelper, since it now also identifies calls to free()
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85181 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 23:58:56 +00:00
Owen Anderson
6f55630830
Add a straight-forward implementation of SCCVN for aggressively eliminating scalar redundancies.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85179 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 23:55:47 +00:00
Evan Cheng
162e30921d
Change ARM asm strings to separate opcode from operands with a tab instead of a space.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85178 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 23:45:59 +00:00
Victor Hernandez
046e78ce55
Remove FreeInst.
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Remove LowerAllocations pass.
Update some more passes to treate free calls just like they were treating FreeInst.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85176 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 23:43:48 +00:00
Bob Wilson
dda9583e51
Try to get ahead of Johnny Chen and pro-actively add some more ARM encoding
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bits. Johnny, please review -- I do not have a good track record of getting
these right.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85173 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 22:59:12 +00:00
Bob Wilson
d9ecd3108f
Fix ARM encoding typo: Opcod3 is not passed to ASuI parent class.
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Patch by Johnny Chen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85169 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 22:42:13 +00:00
Bob Wilson
7e053bb33c
Add more ARM instruction encodings for 's' bit set and "rs" register encoding
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bits. Patch by Johnny Chen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85167 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 22:34:44 +00:00
David Goodwin
e10deca33e
Allow the aggressive anti-dep breaker to process the same region multiple times. This is necessary because new anti-dependencies are exposed when "current" ones are broken.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85166 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 22:31:16 +00:00
Dan Gohman
06d4033a35
Simplify this code. LoopDeletion doesn't need to explicit check that
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the loop exiting block dominates the latch block; if ScalarEvolution
can prove that the trip-count is finite, that's sufficient.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85165 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 22:18:58 +00:00
Dan Gohman
fe3595555a
Code that checks WillNotOverflowSignedAdd before creating an Add
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can safely use the NSW bit on the Add.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85164 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 22:14:22 +00:00
Ted Kremenek
7c44beaf93
Update CMake files.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85161 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 22:06:01 +00:00
Dan Gohman
6665b0ea68
Teach BasicAA how to analyze Select instructions, and make it more
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aggressive on PHI instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85158 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 21:55:43 +00:00
David Goodwin
ada0ef86d9
Define virtual destructor in *.cpp file.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85146 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 19:41:00 +00:00
David Goodwin
348777110a
Add aggressive anti-dependence breaker. Currently it is not the default for any target. Enable with -break-anti-dependencies=all.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85145 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 19:32:42 +00:00
Dan Gohman
6000e253d4
Check in the experimental GEP splitter pass. This pass splits complex
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GEPs (more than one non-zero index) into simple GEPs (at most one
non-zero index). In some simple experiments using this it's not
uncommon to see 3% overall code size wins, because it exposes
redundancies that can be eliminated, however it's tricky to use
because instcombine aggressively undoes the work that this pass does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85144 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 19:12:14 +00:00
Anton Korobeynikov
8b5af25a14
Revert r85134, it breaks mingw build
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85138 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 18:40:24 +00:00
Dan Gohman
91203cf87b
When checking whether a def of an aliased register is dead, ask the
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machineinstr whether the aliased register is dead, rather than the original
register is dead. This allows it to get the correct answer when examining
an instruction like this:
CALLpcrel32 <ga:foo>, %AL<imp-def>, %EAX<imp-def,dead>
where EAX is dead but a subregister of it is still live. This fixes PR5294.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85135 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 18:26:18 +00:00
Sanjiv Gupta
be9e763697
Make PIC16 overlay a loadable pass.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85134 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 18:22:59 +00:00
Devang Patel
5a1033a8ed
Do not use expensive sort().
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85130 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 17:09:00 +00:00
David Goodwin
2e7be612d5
Break anti-dependence breaking out into its own class.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85127 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 16:59:04 +00:00
Devang Patel
ac16d44e58
Add support to encode type info using llvm::Constant.
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Patch by Talin!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85126 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 16:54:35 +00:00
Dan Gohman
440e251c75
Fix a typo in a comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85120 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 15:55:24 +00:00
Chris Lattner
48b59ec817
reapply r85085 with a bugfix to avoid infinite looping.
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All of the 'demorgan' related xforms need to use
dyn_castNotVal, not m_Not.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85119 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 15:40:07 +00:00
Dan Gohman
a8225083ba
Make LSR's OptimizeShadowIV ignore induction variables with negative
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strides for now, because it doesn't handle them correctly. This fixes a
miscompile of SingleSource/Benchmarks/Misc-C++/ray.
This problem was usually hidden because indvars transforms such induction
variables into negations of canonical induction variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85118 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 15:32:57 +00:00
Evan Cheng
a5dc45e3c8
- Revert some changes from 85044, 85045, and 85047 that broke x86_64 tests and
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bootstrapping. It's not safe to leave identity subreg_to_reg and insert_subreg
around.
- Relax register scavenging to allow use of partially "not-live" registers. It's
common for targets to operate on registers where the top bits are undef. e.g.
s0 =
d0 = insert_subreg d0<undef>, s0, 1
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= d0
When the insert_subreg is eliminated by the coalescer, the scavenger used to
complain. The previous fix was to keep to insert_subreg around. But that's
brittle and it's overly conservative when we want to use the scavenger to
allocate registers. It's actually legal and desirable for other instructions
to use the "undef" part of d0. e.g.
s0 =
d0 = insert_subreg d0<undef>, s0, 1
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s1 =
= s1
= d0
We probably need add a "partial-undef" marker on machine operand so the
machine verifier would not complain.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85091 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 04:56:07 +00:00
Evan Cheng
85def16079
Revert 85085. It causes infinite looping during llvm-gcc build.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85090 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 03:51:32 +00:00
Chandler Carruth
8b67f774e9
Move DataTypes.h to include/llvm/System, update all users. This breaks the last
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direct inclusion edge from System to Support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85086 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 01:35:46 +00:00
Chris Lattner
863928fc39
Implement PR3266 & PR5276, folding:
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not (or (icmp, icmp)) -> and(icmp, icmp)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85085 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-26 01:06:31 +00:00
Chris Lattner
1d871c5e54
fix PR5295 where the .ll parser didn't reject a function after a global
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or global after a function with conflicting names. Update some testcases
that were accidentally depending on this behavior.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85081 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25 23:22:50 +00:00
Daniel Dunbar
22bbd9b9b8
Suppress -Asserts warning.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85078 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25 23:11:06 +00:00
Chris Lattner
46264f020a
fix PR5186: the JIT shouldn't try to codegen available_externally
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functions it should just look them up like declarations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85077 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25 23:06:42 +00:00
Chandler Carruth
18ad485bf5
Remove unused includes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85074 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25 22:38:41 +00:00
Jim Grosbach
dd5694203b
of -> or
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85065 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25 19:14:48 +00:00
Jim Grosbach
f639e9f9e6
80-column cleanup
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85064 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25 18:55:46 +00:00
Sanjiv Gupta
e1ef91d275
Reapply 85006 with a minor fix.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85052 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25 08:14:11 +00:00
Evan Cheng
4f54c1293a
Add ARM getMatchingSuperRegClass to handle S / D / Q cross regclass coalescing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85049 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25 07:53:28 +00:00
Evan Cheng
ed3ad212ec
Don't forget subreg indices when folding load / store.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85048 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25 07:52:27 +00:00
Evan Cheng
427c3ba97a
Use isIdentityCopy. Fix a bozo bug (flipped condition) in InvalidateRegDef.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85047 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25 07:51:47 +00:00
Evan Cheng
d98e30f618
Code clean up.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85046 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25 07:49:57 +00:00