Commit Graph

8424 Commits

Author SHA1 Message Date
Stefanus Du Toit
c26672a2d2 Add a comment to refer to the section of the programmer's manual that explains what the pointer tagging in Use is for.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70521 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 23:28:50 +00:00
Argyrios Kyrtzidis
a26eae64dd Make DebugLoc independent of DwarfWriter.
-Replace DebugLocTuple's Source ID with CompileUnit's GlobalVariable*
-Remove DwarfWriter::getOrCreateSourceID
-Make necessary changes for the above (fix callsites, etc.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70520 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 23:22:31 +00:00
Jeffrey Yasskin
714257f5de Add a mention of TypeBuilder to the programmer's manual, and clean up the class
comment a bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70515 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 22:33:41 +00:00
Jakob Stoklund Olesen
ba67d87fe4 getCommonSubClass() - Calculate the largest common sub-class of two register
classes.

This is implemented as a function rather than a method on TargetRegisterClass
because it is symmetric in its arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70512 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 21:23:32 +00:00
Dan Gohman
3d739fe375 Add some comments, and tidy up some whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70510 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 20:48:53 +00:00
Dan Gohman
a1af757e0a Extend ScalarEvolution's getBackedgeTakenCount to be able to
compute an upper-bound value for the trip count, in addition to
the actual trip count. Use this to allow getZeroExtendExpr and
getSignExtendExpr to fold casts in more cases.

This may eventually morph into a more general value-range
analysis capability; there are certainly plenty of places where
more complete value-range information would allow more folding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70509 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 20:47:05 +00:00
Torok Edwin
7f09dd2f63 Make dataflow iteration possible on Value*, not only on User*: df_ext_iterator<Value*, SmallPtrSet<const Value*, 16> >
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70496 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 17:09:22 +00:00
Jay Foad
4e5ea553d0 Move helper functions for optimizing division by constant into the APInt
class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70488 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 10:15:35 +00:00
Bill Wendling
581b93415e Remove unused flags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70459 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-30 00:57:51 +00:00
Bill Wendling
b8cb0bb08c Remove LTO optimization level.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70445 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 23:40:42 +00:00
Bill Wendling
98a366d547 Instead of passing in an unsigned value for the optimization level, use an enum,
which better identifies what the optimization is doing. And is more flexible for
future uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70440 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 23:29:43 +00:00
Bill Wendling
b587f9662a Add support for a character after a command line option. Like '-Os'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70437 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 23:26:16 +00:00
Jakob Stoklund Olesen
ce9be2cf5d MachineInstr::isRegTiedTo{Use,Def}Operand can safely be made const.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70408 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 20:57:16 +00:00
Nate Begeman
a641575828 Update comment, replace theoretically impossible check with an assert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70391 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 18:13:31 +00:00
Sanjiv Gupta
b27fa0afe2 Add directive to declare external globals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70379 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 08:23:18 +00:00
Nate Begeman
5a5ca1519e Implement review feedback for vector shuffle work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70372 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 05:20:52 +00:00
Sanjiv Gupta
a3518a1d6a Add a public method called getAddressSpace() to the GlobalAddressSDNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70366 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 04:43:24 +00:00
Dan Gohman
1e59aa1332 Add some more doxygen comments to SCEVAddRec.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70354 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 00:59:03 +00:00
Bill Wendling
5e5cb7985d The second part of the change from -fast to -O#. This changes the JIT to accept
an optimization level instead of a simple boolean telling it to generate code
"fast" or the other type of "fast".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70347 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 00:32:19 +00:00
Bill Wendling
be8cc2a3de Second attempt:
Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to
use the old behavior, the flag is -O0. This change allows for finer-grained
control over which optimizations are run at different -O levels.

Most of this work was pretty mechanical. The majority of the fixes came from
verifying that a "fast" variable wasn't used anymore. The JIT still uses a
"Fast" flag. I'll change the JIT with a follow-up patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70343 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 00:15:41 +00:00
Bill Wendling
a24d1b1558 Correct comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70340 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-29 00:09:22 +00:00
Evan Cheng
8a8a0dfc3b Move getMatchingSuperReg() out of coalescer and into TargetRegisterInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70309 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-28 18:29:27 +00:00
Sanjiv Gupta
d3d965714b Initialized arrays can be in any address space.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70297 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-28 16:34:20 +00:00
Jakob Stoklund Olesen
fa4677b483 Move getSubRegisterRegClass from ScheduleDagSDNodesEmit.cpp to a TargetRegisterClass method.
Also make the method non-asserting. It will return NULL when given an invalid subreg index.

The method is needed by an upcoming patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70296 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-28 16:34:09 +00:00
Bill Wendling
c69d56f115 r70270 isn't ready yet. Back this out. Sorry for the noise.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70275 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-28 01:04:53 +00:00
Bill Wendling
2e9d5f912a Massive check in. This changes the "-fast" flag to "-O#" in llc. If you want to
use the old behavior, the flag is -O0. This change allows for finer-grained
control over which optimizations are run at different -O levels.

Most of this work was pretty mechanical. The majority of the fixes came from
verifying that a "fast" variable wasn't used anymore. The JIT still uses a
"Fast" flag. I'm not 100% sure if it's necessary to change it there...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70270 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-28 00:21:31 +00:00
Jeffrey Yasskin
487fa01673 Add tests for WeakVH and AssertingVH. These pointed out that the overloads for
the comparison operators were not only unnecessary in the presence of the
implicit conversion; they caused ambiguous overload errors. So I deleted them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70243 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-27 20:32:07 +00:00
Chris Lattner
0370cc6399 give bitstreamreader an API to ignore names for blocks/records,
only llvm-bcanalyzer wants this info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70239 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-27 20:04:08 +00:00
Nate Begeman
9008ca6b6b 2nd attempt, fixing SSE4.1 issues and implementing feedback from duncan.
PR2957

ISD::VECTOR_SHUFFLE now stores an array of integers representing the shuffle
mask internal to the node, rather than taking a BUILD_VECTOR of ConstantSDNodes
as the shuffle mask.  A value of -1 represents UNDEF.

In addition to eliminating the creation of illegal BUILD_VECTORS just to 
represent shuffle masks, we are better about canonicalizing the shuffle mask,
resulting in substantially better code for some classes of shuffles.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70225 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-27 18:41:29 +00:00
Chris Lattner
f9a3ec86c1 Add two new record types to the blockinfo block:
BLOCKNAME and SETRECORDNAME.  This allows a bitcode
file to be self describing with pretty names for 
records and blocks in addition to numbers.  This
enhances llvm-bcanalyzer to use this to print prettily.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70165 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-26 22:21:57 +00:00
Chris Lattner
7919b966a8 make BitstreamCursor's copyable and assignable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70159 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-26 21:07:02 +00:00
Chris Lattner
962dde3cef Make a major API change to BitstreamReader: split all the reading
state out of the BitstreamReader class into a BitstreamCursor class.
Doing this allows the client to have multiple cursors into the same
file, each with potentially different live block stacks and
abbreviation records.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70157 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-26 20:59:02 +00:00
Bill Wendling
3485d25a0e I cast, therefore I think I know what I'm doing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70151 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-26 20:12:38 +00:00
Bill Wendling
b14a495c36 Use uint64_t instead of unsigned.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70148 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-26 19:46:41 +00:00
Chris Lattner
1e8db00e3b revert an incorrect patch. This causes crashes all over the place on a
64-bit build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70147 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-26 19:44:20 +00:00
Bill Wendling
610cb31ac9 Suppress warnings about conversion shortening 64-bit to 32-bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70138 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-26 18:10:20 +00:00
Chris Lattner
096fd7b5a7 Add a new TypeBuilder helper class, which eases making LLVM IR types.
Patch by Jeffrey Yasskin!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70084 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25 22:14:04 +00:00
Chris Lattner
552672d285 improve documentation around memory lifetimes,
patch by Jeffrey Yasskin!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70083 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25 22:10:06 +00:00
Bill Wendling
c2dbff3ba6 Use intptr_t.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70076 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25 21:06:53 +00:00
Mon P Wang
8d34844bff size() should return a size_t; avoids a warning for 64 bit machines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70072 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25 20:46:59 +00:00
Chris Lattner
11d8fb9609 DenseMap.h needs <new> because it explicitly calls operator new/delete.
Patch by John McCall!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70068 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25 19:50:14 +00:00
Evan Cheng
0adb527d16 Do not share a single unknown val# for all the live ranges merged into a physical sub-register live interval. When coalescer is merging in clobbered virtaul register live interval into a physical register live interval, give each virtual register val# a separate val# in the physical register live interval. Otherwise, the coalescer would have lost track of the definitions information it needs to make correct coalescing decisions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70026 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-25 09:25:19 +00:00
Rafael Espindola
15684b2955 Revert 69952. Causes testsuite failures on linux x86-64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69967 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24 12:40:33 +00:00
Chris Lattner
f6b9f260ed fix a typo noticed by duncan
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69962 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24 06:37:12 +00:00
Chris Lattner
f3b0aac190 "I got annoyed at the compiler warnings from ConstantInt::get(Ty, -1,
true), and casts make me nervous and are verbose anyway, so here's a
ConstantInt::getSigned(Ty, int64_t) method. Just overloading
ConstantInt::get() to take an int64_t too would cause ambiguous
overload errors."

Patch by Jeffrey Yasskin!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69958 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24 05:30:14 +00:00
Nate Begeman
b706d29f9c PR2957
ISD::VECTOR_SHUFFLE now stores an array of integers representing the shuffle
mask internal to the node, rather than taking a BUILD_VECTOR of ConstantSDNodes
as the shuffle mask.  A value of -1 represents UNDEF.

In addition to eliminating the creation of illegal BUILD_VECTORS just to 
represent shuffle masks, we are better about canonicalizing the shuffle mask,
resulting in substantially better code for some classes of shuffles.

A clean up of x86 shuffle code, and some canonicalizing in DAGCombiner is next.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69952 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-24 03:42:54 +00:00
Dan Gohman
752ec7da50 Change SCEVExpander's expandCodeFor to provide more flexibility
with the persistent insertion point, and change IndVars to make
use of it. This fixes a bug where IndVars was holding on to a
stale insertion point and forcing the SCEVExpander to continue to
use it.

This fixes PR4038.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69892 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-23 15:16:49 +00:00
Dan Gohman
6cdc727f2d Use BasicBlock::iterator instead of Instruction* for insert points,
to better handle inserting instructions at the end of a block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69807 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 16:05:50 +00:00
Dan Gohman
b928c57397 Make SCEVExpanders private methods private, instead of protected.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69806 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 16:00:36 +00:00
Owen Anderson
ddcb3415cb Add caching of predecessor counts as well as predecessors themselves.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69791 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 08:46:33 +00:00
Owen Anderson
747972914a Fix for PR3946, in which SmallVector could behave strangely in corner cases.
Patch by Peter Johnson.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69785 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 07:16:54 +00:00
Dan Gohman
f8a8be86e3 De-pImpl-ify ScalarEvolution. The pImpl pattern doesn't provide much
practical benefit in the case of ScalarEvolution, and it's otherwise
a nuisance.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69749 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 23:15:49 +00:00
Evan Cheng
5b69ebac85 It has finally happened. Spiller is now using live interval info.
This fixes a very subtle bug. vr defined by an implicit_def is allowed overlap with any register since it doesn't actually modify anything. However, if it's used as a two-address use, its live range can be extended and it can be spilled. The spiller must take care not to emit a reload for the vn number that's defined by the implicit_def. This is both a correctness and performance issue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69743 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 22:46:52 +00:00
Dan Gohman
84923602fd Factor out a common base class from SCEVTruncateExpr, SCEVZeroExtendExpr,
and SCEVSignExtendExpr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69649 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 01:25:57 +00:00
Dan Gohman
af79fb5f47 Introduce encapsulation for ScalarEvolution's TargetData object, and refactor
the code to minimize dependencies on TargetData.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69644 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 01:07:12 +00:00
Dan Gohman
b7ef72963b Convert ScalarEvolution to use raw_ostream instead of OStream.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69640 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 00:47:46 +00:00
Bob Wilson
998e125a87 Move duplicated AddLiveIn function from X86 and ARM backends to be a method
in the MachineFunction class, renaming it to addLiveIn for consistency with
the same method in MachineBasicBlock.  Thanks for Anton for suggesting this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69615 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 18:36:57 +00:00
Bob Wilson
c885165e66 Revise my previous change 68996 as suggested by Duncan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69607 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 17:27:09 +00:00
Duncan Sands
c3bbf579ae These bitfields were being miscompiled on some
64 bit platforms when building with optimization.
So replace them by a hand-coded implementation.
This fixes PR3822.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69597 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 16:03:21 +00:00
Douglas Gregor
8f7be4731e Make all raw_ostreams support the tell() function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69583 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 07:34:17 +00:00
Nick Lewycky
7c53316922 Fix missing text in doxygen documentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69529 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19 18:20:21 +00:00
Duncan Sands
4a930ecd2a Remove the SimpleTy enumerated type field from the MVT
value type union: this field was causing problems for
some compilers on 64 bit systems, presumably because
SimpleTy is 32 bits wide while the other fields are
64 bits wide.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69515 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-19 06:23:05 +00:00
Duncan Sands
b10b5ac8d9 Don't try to make BUILD_VECTOR operands have the same
type as the vector element type: allow them to be of
a wider integer type than the element type all the way
through the system, and not just as far as LegalizeDAG.
This should be safe because it used to be this way
(the old type legalizer would produce such nodes), so
backends should be able to handle it.  In fact only
targets which have legal vector types with an illegal
promoted element type will ever see this (eg: <4 x i16>
on ppc).  This fixes a regression with the new type
legalizer (vec_splat.ll).  Also, treat SCALAR_TO_VECTOR
the same as BUILD_VECTOR.  After all, it is just a
special case of BUILD_VECTOR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69467 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18 20:16:54 +00:00
Dan Gohman
f4ccfcb704 Add a ScalarEvolution::getCouldNotCompute() function, and use it
instead of allocating and leaking new SCEVCouldNotCompute objects.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69452 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18 17:58:19 +00:00
Dan Gohman
890f92b744 Use more const qualifiers with SCEV interfaces.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69450 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18 17:56:28 +00:00
Evan Cheng
cccdb2b602 Add a new LiveInterval::overlaps(). It checks if the live interval overlaps a range specified by [Start, End).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69434 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-18 08:52:15 +00:00
Bob Wilson
dee46d7f6d Clean up formatting, remove trailing whitespace, fix comment typos and
punctuation.  No functional changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69378 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-17 20:35:10 +00:00
Dan Gohman
276944ef30 Delete an unused field.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69375 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-17 20:03:31 +00:00
Bob Wilson
1f595bb429 Use CallConvLower.h and TableGen descriptions of the calling conventions
for ARM.  Patch by Sandeep Patel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69371 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-17 19:07:39 +00:00
Bob Wilson
c91e40a179 Add a comment to describe LLVMMatchType.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69313 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16 21:46:42 +00:00
Dan Gohman
f04fa483b8 Teach SCEVExpander::InsertCastOfTo to avoid creating inttoptr-of-ptrtoint
and ptrtoint-of-inttoptr expressions. This fixes a regression in 300.twolf.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69293 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16 15:52:57 +00:00
Dan Gohman
2d1be87ee4 Expand GEPs in ScalarEvolution expressions. SCEV expressions can now
have pointer types, though in contrast to C pointer types, SCEV
addition is never implicitly scaled. This not only eliminates the
need for special code like IndVars' EliminatePointerRecurrence
and LSR's own GEP expansion code, it also does a better job because
it lets the normal optimizations handle pointer expressions just
like integer expressions.

Also, since LLVM IR GEPs can't directly index into multi-dimensional
VLAs, moving the GEP analysis out of client code and into the SCEV
framework makes it easier for clients to handle multi-dimensional
VLAs the same way as other arrays.

Some existing regression tests show improved optimization.
test/CodeGen/ARM/2007-03-13-InstrSched.ll in particular improved to
the point where if-conversion started kicking in; I turned it off
for this test to preserve the intent of the test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69258 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16 03:18:22 +00:00
Devang Patel
390f3ace34 If FastISel is run and it has known DebugLoc then use it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69253 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-16 01:33:10 +00:00
Dan Gohman
c23e496879 Generalize one of the SelectionDAG::ReplaceAllUsesWith overloads
to support replacing a node with another that has a superset of
the result types. Use this instead of calling
ReplaceAllUsesOfValueWith for each value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69209 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15 20:06:30 +00:00
Douglas Gregor
37a4d8dbbb Allow jumping to the end of a bitstream while reading
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69145 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15 04:53:47 +00:00
Dan Gohman
61e08bd97f Don't use "protected:" in classes that aren't intended to be
subclassed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69129 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15 01:47:03 +00:00
Dan Gohman
7beace5d06 Fix doxygen comment syntax.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69128 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15 01:44:07 +00:00
Dan Gohman
33f1c68cba Move MachineRegisterInfo::setRegClass out of line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69126 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15 01:19:35 +00:00
Dan Gohman
593ea05957 Move MachineJumpTableInfo::ReplaceMBBInJumpTables out of line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69125 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15 01:18:49 +00:00
Dan Gohman
3bc1a3735f Give RemoveRegOperandFromRegInfo a comment and move the
code out of line.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69124 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15 01:17:37 +00:00
Devang Patel
1be3eccecb Construct and emit DW_TAG_inlined_subroutine DIEs for inlined subroutine scopes (only in FastISel mode).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69116 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15 00:10:26 +00:00
Devang Patel
af5b6bb6a5 Add a method to check that the subprogram holds debug info for the given Function or not.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69113 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-15 00:06:07 +00:00
Bob Wilson
b1303d05a8 Change SelectionDAG type legalization to allow BUILD_VECTOR operands to be
promoted to legal types without changing the type of the vector.  This is
following a suggestion from Duncan
(http://lists.cs.uiuc.edu/pipermail/llvmdev/2009-February/019923.html).
The transformation that used to be done during type legalization is now
postponed to DAG legalization.  This allows the BUILD_VECTORs to be optimized
and potentially handled specially by target-specific code.

It turns out that this is also consistent with an optimization done by the
DAG combiner: a BUILD_VECTOR and INSERT_VECTOR_ELT may be combined by
replacing one of the BUILD_VECTOR operands with the newly inserted element;
but INSERT_VECTOR_ELT allows its scalar operand to be larger than the
element type, with any extra high bits being implicitly truncated.  The
result is a BUILD_VECTOR where one of the operands has a type larger the
the vector element type.

Any code that operates on BUILD_VECTORs may now need to be aware of the
potential type discrepancy between the vector element type and the
BUILD_VECTOR operands.  This patch updates all of the places that I could
find to handle that case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68996 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13 22:05:19 +00:00
Dan Gohman
88c7af096b Rename COPY_TO_SUBCLASS to COPY_TO_REGCLASS, and generalize
it accordingly. Thanks to Jakob Stoklund Olesen for pointing
out how this might be useful.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68986 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13 21:06:25 +00:00
Douglas Gregor
17893a5fb6 Add a static APInt::getNumWords
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68977 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13 19:43:10 +00:00
Devang Patel
48c7fa21a3 Right now, Debugging information to encode scopes (DW_TAG_lexical_block) relies on DBG_LABEL. Unfortunately this intefers with the quality of optimized code.
This patch updates dwarf writer to encode scoping information in DWARF only in FastISel mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68973 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13 18:13:16 +00:00
Devang Patel
0f7fef3872 Reapply 68847.
Now debug_inlined section is covered by TAI->doesDwarfUsesInlineInfoSection(), which is false by default.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68964 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13 17:02:03 +00:00
Dan Gohman
f8c7394781 Add a new TargetInstrInfo MachineInstr opcode, COPY_TO_SUBCLASS.
This will be used to replace things like X86's MOV32to32_.

Enhance ScheduleDAGSDNodesEmit to be more flexible and robust
in the presense of subregister superclasses and subclasses. It
can now cope with the definition of a virtual register being in
a subclass of a use.

Re-introduce the code for recording register superreg classes and
subreg classes. This is needed because when subreg extracts and
inserts get coalesced away, the virtual registers are left in
the correct subclass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68961 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13 15:38:05 +00:00
Dan Gohman
73099b1058 Add comments to INSERT_SUBREG, EXTRACT_SURBEG, SUBREG_TO_REG,
and IMPLICIT_DEF.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68949 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13 15:12:29 +00:00
Chris Lattner
266c7bbbbc Add a new "available_externally" linkage type. This is intended
to support C99 inline, GNU extern inline, etc.  Related bugzilla's
include PR3517, PR3100, & PR2933.  Nothing uses this yet, but it
appears to work.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68940 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13 05:44:34 +00:00
Nick Lewycky
267fddbedd Regenerate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68938 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-13 04:26:27 +00:00
Owen Anderson
ddeed50d76 Use a hashtable for TargetRegisterClass::contains.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68922 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12 22:31:17 +00:00
Chris Lattner
c5040ab606 optimize FastISel::UpdateValueMap to avoid duplicate map lookups,
and make it return the assigned register.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68888 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12 07:45:01 +00:00
Chris Lattner
0461c0a8f5 Add new TargetInstrDesc::hasImplicitUseOfPhysReg and
hasImplicitDefOfPhysReg methods.  Use them to remove a 
look in X86 fast isel.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68886 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-12 07:26:51 +00:00
Dan Gohman
c6fa3ff0bd Revert r68847. It breaks the build on non-Darwin targets, with this message
from the assembler:

Error: unknown pseudo-op: `.debug_inlined'


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68863 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-11 15:57:04 +00:00
Devang Patel
2057532679 Keep track of inlined functions and their locations. This information is collected when nested llvm.dbg.func.start intrinsics are seen. (Right now, inliner removes nested llvm.dbg.func.start intrinisics during inlining.)
Create debug_inlined dwarf section using these information. This info is used by gdb, at least on Darwin, to enable better experience debugging inlined functions. See DwarfWriter.cpp for more information on structure of debug_inlined section.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68847 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-11 00:16:47 +00:00
Devang Patel
03f0a2fba0 DebugLabelFolder ruthlessly deletes redundant labels. However, sometimes the redundant labels is referenced by debug info somewhere else. This patch provies a way so that dwarf writer can mark labels as used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68813 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-10 18:58:59 +00:00
Chris Lattner
5c5f5a2ec2 fix a broken assertion in ilist_iterator, which caused it to crash in the
bad case instead of actually assert.  Bug pointed out by Jakob Stoklund 
Olesen!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68785 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-10 15:47:17 +00:00
Nick Lewycky
cb8c4778d3 Cleanup. Remove redundant llvm:: , we don't need them since we're inside
namespace llvm already.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68774 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-10 06:54:06 +00:00
Chris Lattner
3584a47588 Add a new Type::getPointerTo method, which is shorthand for
llvm::PointerType::get().  Patch by Anders Johnsen!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68772 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-10 06:42:02 +00:00