Daniel Dunbar
f47a7b2699
Clean up some doxyments/style.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118970 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-13 02:48:41 +00:00
Chris Lattner
ccb5c677c6
add operand iterator apis to MachineInstr, patch by ether zhhb.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118862 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-12 00:00:21 +00:00
Dan Gohman
6d8eb156e6
Add helper functions for computing the Location of load, store,
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and vaarg instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118845 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-11 21:50:19 +00:00
Dan Gohman
4d70a29490
Factor out Instruction::isSafeToSpeculativelyExecute's code for
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testing for dereferenceable pointers into a helper function,
isDereferenceablePointer. Teach it how to reason about GEPs
with simple non-zero indices.
Also eliminate ArgumentPromtion's IsAlwaysValidPointer,
which didn't check for weak externals or out of range gep
indices.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118840 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-11 21:23:25 +00:00
Rafael Espindola
2ff9e83a82
Initial comdat implementation.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118805 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-11 18:13:52 +00:00
Dan Gohman
8e78cc4e13
Add comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118799 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-11 17:33:39 +00:00
Dan Gohman
17e8078ae1
Add brief doxygen comments for AliasResult enum values.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118792 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-11 16:37:38 +00:00
Dan Gohman
ec9b4ac914
Set NonLocalDepInfo's Size field to UnknownSize when invalidating
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it, so that it doesn't appear to be a known size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118748 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-11 00:20:27 +00:00
Jakob Stoklund Olesen
1e8e72d72a
Insert two blank SlotIndexes between basic blocks instead of just one.
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This is the first small step towards using closed intervals for liveness instead
of the half-open intervals we're using now.
We want to be able to distinguish between a SlotIndex that represents a variable
being live-out of a basic block, and an index representing a variable live-in to
its successor.
That requires two separate indexes between blocks. One for live-outs and one for
live-ins.
With this change, getMBBEndIdx(MBB).getPrevSlot() becomes stable so it stays
greater than any instructions inserted at the end of MBB.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118747 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-11 00:19:20 +00:00
Jakob Stoklund Olesen
01f98abe3e
Delete unused function.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118743 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10 23:56:02 +00:00
Devang Patel
62367045a4
Take care of special characters while creating named MDNode name to hold function specific local variable's info.
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This fixes radar 8653152. I am checking in testcase as a separate check-in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118726 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10 22:19:21 +00:00
Dan Gohman
075fb5d68f
Enhance GVN to do more precise alias queries for non-local memory
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references. For example, this allows gvn to eliminate the load in
this example:
void foo(int n, int* p, int *q) {
p[0] = 0;
p[1] = 1;
if (n) {
*q = p[0];
}
}
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118714 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10 20:37:15 +00:00
Andrew Trick
f4baeaf848
RABasic is nearly functionally complete. There are a few remaining
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benchmarks hitting an assertion.
Adds LiveIntervalUnion::collectInterferingVRegs.
Fixes "late spilling" by checking for any unspillable live vregs among
all physReg aliases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118701 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10 19:18:47 +00:00
Rafael Espindola
4283f4b81e
Use MCSectionELF in places we know we have an ELF section.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118699 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10 19:05:07 +00:00
Dan Gohman
e88ccb545d
Rename AccessesArguments and AccessesArgumentsReadonly, and rewrite
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their comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118696 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10 18:30:00 +00:00
Dan Gohman
b395e4a026
Fix a copy+pasto Duncan noticed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118693 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10 18:18:23 +00:00
Dan Gohman
68a6056daf
Add a doesAccessArgPointees helper function, and update code to use
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it, and to be consistent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118692 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10 18:17:28 +00:00
Dan Gohman
432d08cbdb
Factor out the code for testing whether a function accesses
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arbitrary memory into a helper function, and adjust some comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118687 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10 17:34:04 +00:00
Dan Gohman
50bcaece67
Give NonLocalDepResult a NonLocalDepEntry member, replacing
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indivudal members holding the same data, to clarify the relationship
between NonLocalDepResult and NonLocalDepEntry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118686 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10 17:15:52 +00:00
Michael J. Spencer
7aac79bdea
System/Path: Update comments to match code.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118682 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10 15:05:50 +00:00
Duncan Sands
867fe8570f
There is no EndPtr anymore - reinterpret the original comment in terms
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of InputData.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118677 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10 07:46:36 +00:00
Jim Grosbach
2c4d5125c7
Update ARMConstantPoolValue to not use a modifier string. Use an explicit
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VariantKind marker to indicate the additional information necessary. Update
MC to handle the new Kinds. rdar://8647623
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118671 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10 03:26:07 +00:00
Dan Gohman
42c31a7073
Make ModRefBehavior a lattice. Use this to clean up AliasAnalysis
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chaining and simplify FunctionAttrs' GetModRefBehavior logic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118660 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-10 01:02:18 +00:00
Rafael Espindola
34be396a12
Fixed version of 118639 with an extra assert to catch similar problems
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earlier. Implicit bool -> int conversions are evil!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118651 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09 23:42:07 +00:00
Rafael Espindola
037b5be15a
Revert previous patch. Missed a case.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118645 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09 22:54:38 +00:00
Rafael Espindola
e61a1ac595
Remove IsExplicit. It was always false.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118639 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09 22:37:44 +00:00
Dan Gohman
50a04d067f
Convert comments to doxygen syntax.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118628 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09 20:33:57 +00:00
Dan Gohman
4a53f37a1a
AccessesArgumentsReadonly is read-only.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118615 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09 19:50:00 +00:00
Dan Gohman
db78c4873e
Add a AccessesArgumentsReadonly ModRefBehavior value, so that the intrinsic
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property IntrReadArgMem can be modeled.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118614 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09 19:48:55 +00:00
Dan Gohman
467a0adfc8
Factor out the logic for onlyReadsMemory into a helper function.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118611 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09 19:43:24 +00:00
Dan Gohman
7293ac1281
Delete AccessesArgumentsAndGlobals, which was unused.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118610 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09 19:41:37 +00:00
Michael J. Spencer
87e0697a46
System/Path/Windows: Change GetRootDirectory to return file:/// instead of C:/.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118502 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-09 15:10:45 +00:00
Dan Gohman
902da265f6
Add some comments noting some correspondences between ModRefBehavior
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values, LLVM IR function attributes, and LLVM intrinsic attributes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118455 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 23:46:02 +00:00
Devang Patel
2c4c6a5e8a
Document parameters. Fix typos.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118424 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 18:28:34 +00:00
Dan Gohman
a25e5dbcc2
Extend the AliasAnalysis::pointsToConstantMemory interface to allow it
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to optionally look for constant or local (alloca) memory.
Teach BasicAliasAnalysis::pointsToConstantMemory to look through Select
and Phi nodes, and to support looking for local memory.
Remove FunctionAttrs' PointsToLocalOrConstantMemory function, now that
AliasAnalysis knows all the tricks that it knew.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118412 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 16:45:26 +00:00
Dan Gohman
c80cbf2540
Delete getIntrinsicModRefBehavior. Clients can just use the normal
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getModRefBehavior now, since it now understands intrinsics as well
as normal functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118411 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 16:11:19 +00:00
Dan Gohman
6c25c920e6
Add comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118408 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 15:34:42 +00:00
Che-Liang Chiou
6da24ca51d
Add registry hook for assembly text output
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118394 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 02:21:17 +00:00
Rafael Espindola
6bc6cd223c
typos
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118376 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-07 13:48:10 +00:00
Rafael Espindola
9e07a149b0
Add method for checking if a path is a symbolic link.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118367 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-07 04:36:50 +00:00
Rafael Espindola
187d8339db
Relax dwarf line fragments. This fixes a crash in the included testcase.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118365 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-07 02:07:12 +00:00
Benjamin Kramer
f788854d20
Prune includes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118342 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 11:45:59 +00:00
Chris Lattner
662e5a30e8
Reimplement BuildResultOperands to be in terms of the result instruction's
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operand list instead of the operand list redundantly declared on the alias
or instruction.
With this change, we finally remove the ins/outs list on the alias. Before:
def : InstAlias<(outs GR16:$dst), (ins GR8 :$src),
"movsx $src, $dst",
(MOVSX16rr8W GR16:$dst, GR8:$src)>;
After:
def : InstAlias<"movsx $src, $dst",
(MOVSX16rr8W GR16:$dst, GR8:$src)>;
This also makes the alias mechanism more general and powerful, which will
be exploited in subsequent patches.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118329 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 07:14:44 +00:00
Jim Grosbach
ba21957cbd
Add '.code 32' assembler directive to MC streamers.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118309 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-05 22:40:09 +00:00
Jim Grosbach
ce79299f78
MC'ize the '.code 16' and '.thumb_func' ARM directives.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118301 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-05 22:08:08 +00:00
Jim Grosbach
d54986f609
Trailing whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118296 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-05 20:41:12 +00:00
Jim Grosbach
c9d1439051
Allow targets to specify the MachO CPUType/CPUSubtype information.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118288 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-05 18:48:58 +00:00
Jim Grosbach
c91b26281a
Add v5 and v7 ARM CPU subtype values.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118281 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-05 17:48:05 +00:00
Daniel Dunbar
f8254d6473
CrashRecoveryContext: Add RunSafelyOnThread helper function.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118272 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-05 07:19:09 +00:00
Devang Patel
35fcd6557f
Introduce DIBuilder. It is intended to be a front-end friendly interface to emit debuggging information entries in LLVM IR.
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To create debugging information for a pointer, using DIBUilder front-end just needs
DBuilder.CreatePointerType(Ty, Size);
instead of
DebugFactory.CreateDerivedType(llvm::dwarf::DW_TAG_pointer_type,
TheCU, "", getOrCreateMainFile(),
0, Size, 0, 0, 0, OCTy);
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118248 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-04 15:01:38 +00:00