Commit Graph

7733 Commits

Author SHA1 Message Date
Chris Lattner
c7f7c1dc50 add a little helper function that does PHI translation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60405 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-02 07:16:45 +00:00
Chris Lattner
b6bbe6320b add densemap range insertion method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60400 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-02 06:08:04 +00:00
Bill Wendling
13d6d446f6 Expand getVTList, getNodeValueTypes, and SelectNodeTo to handle more value types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60381 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01 23:28:22 +00:00
Chris Lattner
c65fc3bd27 reenable array_pod_sort, this time hopefully happy on 64-bit
and big endian systems.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60371 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01 21:11:25 +00:00
Chris Lattner
7b6113c6e2 don't #include <algorithm> into the llvm namespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60365 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01 19:45:45 +00:00
Chris Lattner
de5debfb58 switch to std::sort until I have time to sort this out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60354 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01 17:00:08 +00:00
Chris Lattner
0f41ad3bc9 cleanups suggested by duncan, thanks!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60353 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01 16:55:19 +00:00
Chris Lattner
545fc87454 define array_pod_sort in terms of operator< instead of my brain
damaged approximation.  This should fix it on big endian platforms
and on 64-bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60352 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01 16:50:01 +00:00
Duncan Sands
aaffa05d0a There are no longer any places that require a
MERGE_VALUES node with only one operand, so get
rid of special code that only existed to handle
that possibility.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60349 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01 11:41:29 +00:00
Duncan Sands
1607f05cb7 Change the interface to the type legalization method
ReplaceNodeResults: rather than returning a node which
must have the same number of results as the original
node (which means mucking around with MERGE_VALUES,
and which is also easy to get wrong since SelectionDAG
folding may mean you don't get the node you expect),
return the results in a vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60348 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01 11:39:25 +00:00
Chris Lattner
4329c42840 don't assume iterators implicitly convert to pointers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60336 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01 06:50:46 +00:00
Chris Lattner
99d0015735 Introduce a new array_pod_sort function and switch LSR to use it
instead of std::sort.  This shrinks the release-asserts LSR.o file
by 1100 bytes of code on my system.

We should start using array_pod_sort where possible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60335 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01 06:49:59 +00:00
Chris Lattner
bf145d6e2b Reimplement the non-local dependency data structure in terms of a sorted
vector instead of a densemap.  This shrinks the memory usage of this thing
substantially (the high water mark) as well as making operations like
scanning it faster.  This speeds up memdep slightly, gvn goes from
3.9376 to 3.9118s on 403.gcc

This also splits out the statistics for the cached non-local case to
differentiate between the dirty and clean cached case.  Here's the stats
for 403.gcc:

  6153 memdep - Number of dirty cached non-local responses
169336 memdep - Number of fully cached non-local responses
162428 memdep - Number of uncached non-local responses

yay for caching :)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60313 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01 01:15:42 +00:00
Eli Friedman
3864cd4cab Fix bogus assertion using getSExtValue for legitimate values, like -1 in
an 128-bit-wide integer.  No testcase; the issue I ran into depends on 
local changes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60311 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-01 00:43:48 +00:00
Chris Lattner
fd3dcbea06 Eliminate the DepResultTy abstraction. It is now completely
redundant with MemDepResult, and MemDepResult has a nicer interface.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60308 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-30 23:17:19 +00:00
Chris Lattner
d777d405cd Cache TargetData/AliasAnalysis in the pass instead of calling
getAnalysis<>.  getAnalysis<> is apparently extremely expensive.
Doing this speeds up GVN on 403.gcc by 16%!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60304 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-30 19:24:31 +00:00
Chris Lattner
012618f0fc add the rest of the comparison routines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60303 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-30 19:10:41 +00:00
Chris Lattner
4a69bade23 Two changes: Make getDependency remove QueryInst for a dirty record's
ReverseLocalDeps when we update it.  This fixes a regression test
failure from my last commit.

Second, for each non-local cached information structure, keep a bit that
indicates whether it is dirty or not.  This saves us a scan over the whole
thing in the common case when it isn't dirty.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60274 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-30 02:52:26 +00:00
Chris Lattner
25f4b2b7a3 introduce a typedef, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60272 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-30 02:30:50 +00:00
Chris Lattner
f68f310386 Change NonLocalDeps to be a densemap of pointers to densemap
instead of containing them by value.  This increases the density
(!) of NonLocalDeps as well as making the reallocation case 
faster.  This speeds up gvn on 403.gcc by 2% and makes room for
future improvements.

I'm not super thrilled with having to explicitly manage the new/delete
of the map, but it is necesary for the next change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60271 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-30 02:28:25 +00:00
Chris Lattner
73ec3cdd71 implement a fixme by introducing a new getDependencyFromInternal
method that returns its result as a DepResultTy instead of as a
MemDepResult.  This reduces conversion back and forth.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60266 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-30 01:26:32 +00:00
Chris Lattner
0e0a5b690c REmove an old fixme, resolve another fixme by adding liberal
comments about what this class does.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60264 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-30 01:17:08 +00:00
Chris Lattner
b911824620 fix indentation. std::pair is "isPod" if the first/second are both isPod.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60262 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-30 00:50:20 +00:00
Chris Lattner
4f8c18c7c7 Eliminate the dropInstruction method, which is not needed any more.
Fix a subtle iterator invalidation bug I introduced in the last commit.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60258 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-29 23:30:39 +00:00
Chris Lattner
0ec48ddef2 implement some fixme's: when deleting an instruction with
an entry in the nonlocal deps map, don't reset entries
referencing that instruction to [dirty, null], instead, set
them to [dirty,next] where next is the instruction after the
deleted one.  Use this information in the non-local deps
code to avoid rescanning entire blocks.

This speeds up GVN slightly by avoiding pointless work.  On
403.gcc this makes GVN 1.5% faster. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60256 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-29 22:02:15 +00:00
Chris Lattner
396a4a55e5 Change MemDep::getNonLocalDependency to return its results as
a smallvector instead of a DenseMap.  This speeds up GVN by 5%
on 403.gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60255 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-29 21:33:22 +00:00
Chris Lattner
86b29ef64a reimplement getNonLocalDependency with a simpler worklist
formulation that is faster and doesn't require nonLazyHelper.
Much less code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60253 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-29 21:22:42 +00:00
Chris Lattner
233336ebc5 tidy up some variable names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60243 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-29 09:22:14 +00:00
Chris Lattner
8c4652790e rename some maps.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60242 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-29 09:20:15 +00:00
Torok Edwin
10ca770020 protect against negative values that would exceed allowed bit width
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60239 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-29 08:52:45 +00:00
Chris Lattner
b9cf75a15f apparently GCC doesn't believe that I understand C
precedence rules.  Pacify it.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60237 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-29 08:36:39 +00:00
Duncan Sands
3f7dba7b17 Typo fix.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60236 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-29 08:03:35 +00:00
Chris Lattner
5391a1d804 Split getDependency into getDependency and getDependencyFrom, the
former does caching, the later doesn't.  This dramatically simplifies
the logic in getDependency and getDependencyFrom.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60234 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-29 03:47:00 +00:00
Chris Lattner
7f52422a3c Now that DepType is private, we can start cleaning up some of its uses:
Document the Dirty value more precisely, use it for the uninitialized
DepResultTy value.  Change reverse mappings to be from an instruction*
instead of DepResultTy, and stop tracking other forms.  This makes it more
clear that we only care about the instruction cases.

Eliminate a DepResultTy,bool pair by using Dirty in the local case as well,
shrinking the map and simplifying the code.

This speeds up GVN by ~3% on 403.gcc.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60232 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-29 03:22:12 +00:00
Chris Lattner
4c72400625 Introduce and use a new MemDepResult class to hold the results of a memdep
query.  This makes it crystal clear what cases can escape from MemDep that
the clients have to handle.  This also gives the clients a nice simplified
interface to it that is easy to poke at.

This patch also makes DepResultTy and MemoryDependenceAnalysis::DepType
private, yay.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60231 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-29 02:29:27 +00:00
Chris Lattner
39f372e23e Reimplement the internal abstraction used by MemDep in terms
of a pointer/int pair instead of a manually bitmangled pointer.
This forces clients to think a little more about checking the 
appropriate pieces and will be useful for internal 
implementation improvements later.

I'm not particularly happy with this.  After going through this
I don't think that the clients of memdep should be exposed to
the internal type at all.  I'll fix this in a subsequent commit.

This has no functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60230 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-29 01:43:36 +00:00
Chris Lattner
d63e618212 Fix sentinels to use correctly 'aligned' pointers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60229 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-29 01:36:16 +00:00
Chris Lattner
9ac30537aa Fix spello, add DenseMapInfo specialization for PointerIntPair.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60228 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-29 01:18:05 +00:00
Chris Lattner
d55da4de04 fix comment typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60227 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-28 23:57:26 +00:00
Chris Lattner
762ac83271 fix a bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60225 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-28 23:36:15 +00:00
Chris Lattner
34b763694e add a generic "bitmangled pointer" class, which allows a parameterized
pointer and integer type to be used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60224 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-28 23:31:44 +00:00
Chris Lattner
956033a4f5 comment cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60220 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-28 22:41:36 +00:00
Chris Lattner
b390b1728e forward declare CallSite instead of #includ'ing it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60217 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-28 21:47:19 +00:00
Chris Lattner
8b589fa135 rename "ping" to "verifyRemoved". I don't know why 'ping' what chosen,
but it doesn't make any sense at all.

Also make the method const, private, and fit in 80 cols while we're at it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60215 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-28 21:42:09 +00:00
Chris Lattner
e85866313a comment and indentation improvements.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60214 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-28 21:36:43 +00:00
Mikhail Glushenkov
739c720e66 Add 'hidden' and 'really_hidden' option properties.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60198 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-28 00:13:25 +00:00
Chris Lattner
4f02c74a8e Enhance RecursivelyDeleteTriviallyDeadInstructions to optionally
return a list of deleted instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60193 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-27 23:14:34 +00:00
Chris Lattner
3481f24c06 remove doConstantPropagation and dceInstruction, they are just
wrappers around the interesting code and use an obscure iterator
abstraction that dates back many many years.

Move EraseDeadInstructions to Transforms/Utils and name it
RecursivelyDeleteTriviallyDeadInstructions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60191 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-27 22:57:53 +00:00
Chris Lattner
e3a0884ddf improve const correctness.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60168 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-27 08:39:18 +00:00
Chris Lattner
52c95856b4 move FindAvailableLoadedValue from JumpThreading to Transforms/Utils.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60166 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-27 08:10:05 +00:00
Chris Lattner
b29714a10a move MergeBasicBlockIntoOnlyPred to Transforms/Utils.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60162 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-27 07:43:12 +00:00
Evan Cheng
884c70c912 On x86 favors folding short immediate into some arithmetic operations (e.g. add, and, xor, etc.) because materializing an immediate in a register is expensive in turns of code size.
e.g.
movl 4(%esp), %eax
addl $4, %eax

is 2 bytes shorter than

movl $4, %eax
addl 4(%esp), %eax


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60139 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-27 00:49:46 +00:00
Ted Kremenek
9f1f00ab1b Add typedef to StringMapEntry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60134 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-27 00:17:25 +00:00
Mikhail Glushenkov
7e6d70a425 Disallow multiple edges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60127 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-26 22:59:45 +00:00
Devang Patel
da278753c4 Fix typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60111 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-26 18:13:11 +00:00
Mikhail Glushenkov
1f1fab8c91 Fix the -I option (llvmc -I dir1 -I dir2 didn't work).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60101 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-26 10:57:31 +00:00
Mikhail Glushenkov
8b4c5f5d26 Refactor Tools.td to remove repetition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60100 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-26 10:56:56 +00:00
Dan Gohman
2ad8245566 LiveRanges are represented as half-open ranges. Fix the findLiveInMBBs code
and the LiveInterval.h top-level comment and accordingly. This fixes blocks
having spurious live-in registers in boundary cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60092 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-26 05:50:31 +00:00
Ted Kremenek
5984680c1f Add 'tell' method to raw_fd_ostream that clients can use to query the current location in the file the stream is writing to.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60085 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-26 03:33:13 +00:00
Chris Lattner
c5dd22a333 add a long-overdue AllocaInst::isStaticAlloca method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60080 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-26 02:54:17 +00:00
Nuno Lopes
08d67c7763 change AnnotationManager to use 'const char*' instead of std::string. this fixes the leakage of those strings and avoids the creation of such strings in static cosntructors (should result in a little improvement of startup time)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60064 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-26 00:00:44 +00:00
Mikhail Glushenkov
d91487785f Make -fsyntax-only, -include and -emit-llvm work for C++ and Objective-C/C++.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60047 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-25 21:35:20 +00:00
Dan Gohman
21d9003087 Initial support for anti-dependence breaking. Currently this code does not
introduce any new spilling; it just uses unused registers.

Refactor the SUnit topological sort code out of the RRList scheduler and
make use of it to help with the post-pass scheduler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59999 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-25 00:52:40 +00:00
Dan Gohman
ad38b6e4e5 Move the scheduler constructor functions to SchedulerRegistry.h, to
simplify header dependencies for front-ends that just want to choose
a scheduler and don't need all the scheduling machinery declarations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59978 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-24 19:53:21 +00:00
Dan Gohman
d59b083d22 Fix an unused-parameter warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59977 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-24 19:51:59 +00:00
Dan Gohman
942b8c8533 Check in the rest of this change. The isAntiDep flag needs to be passed
to removePred because an SUnit can both data-depend and anti-depend
on the same SUnit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59969 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-24 17:33:52 +00:00
Duncan Sands
25cf2275ff If the type legalizer actually legalized anything
(this doesn't happen that often, since most code
does not use illegal types) then follow it by a
DAG combiner run that is allowed to generate
illegal operations but not illegal types.  I didn't
modify the target combiner code to distinguish like
this between illegal operations and illegal types,
so it will not produce illegal operations as well
as not producing illegal types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59960 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-24 14:53:14 +00:00
Evan Cheng
027fdbe3ba Move target independent td files from lib/Target/ to include/llvm/Target so they can be distributed along with the header files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59953 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-24 07:34:46 +00:00
Scott Michel
2cd91804ec Roll back rev 59890, since Chris says this can never happen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59914 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-23 19:22:48 +00:00
Duncan Sands
03228089d5 Rename SetCCResultContents to BooleanContents. In
practice these booleans are mostly produced by SetCC,
however the concept is more general.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59911 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-23 15:47:28 +00:00
Scott Michel
bab6436b17 Check for NULL before traversing the isa<> type hierarchy checking with a
NULL-based reference.

Note: Encountered this a few times on Tiger + gcc 4.0.1. Might just be a
platform-specific compiler issue, but it's good defensive programming in any
case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59890 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-22 23:49:26 +00:00
Anton Korobeynikov
7751ad92da Make a convenient helper for printing offsets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59872 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-22 16:15:34 +00:00
Bill Wendling
253174bf50 Cleanup of the [SU]ADDO type legalization code. Patch by Duncan!
"It simplifies the type legalization part a bit, and produces better code by
teaching SelectionDAG about the extra bits in an i8 SADDO/UADDO node.  In
essence, I spontaneously decided that on x86 this i8 boolean result would be
either 0 or 1, and on other platforms 0/1 or 0/-1, depending on whether the
platform likes it's boolean zero extended or sign extended."


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59864 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-22 07:24:01 +00:00
Chris Lattner
824b958e6f reapply Sanjiv's patch to genericize memcpy/memset/memmove to take an
arbitrary integer width for the count.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59823 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 16:42:48 +00:00
Bill Wendling
dc770929cb Revert r59802. It was breaking the build of llvm-gcc:
g++ -m32 -c -g -DIN_GCC -W -Wall -Wwrite-strings -Wmissing-format-attribute -fno-common -mdynamic-no-pic -DHAVE_CONFIG_H -Wno-unused -DTARGET_NAME=\"i386-apple-darwin9.5.0\" -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include  -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include -DENABLE_LLVM -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/../llvm.src/include  -D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS   -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include  -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include ../../llvm-gcc.src/gcc/llvm-types.cpp -o llvm-types.o
../../llvm-gcc.src/gcc/llvm-convert.cpp: In member function 'void TreeToLLVM::EmitMemCpy(llvm::Value*, llvm::Value*, llvm::Value*, unsigned int)':
../../llvm-gcc.src/gcc/llvm-convert.cpp:1496: error: 'memcpy_i32' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp:1496: error: 'memcpy_i64' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp: In member function 'void TreeToLLVM::EmitMemMove(llvm::Value*, llvm::Value*, llvm::Value*, unsigned int)':
../../llvm-gcc.src/gcc/llvm-convert.cpp:1512: error: 'memmove_i32' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp:1512: error: 'memmove_i64' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp: In member function 'void TreeToLLVM::EmitMemSet(llvm::Value*, llvm::Value*, llvm::Value*, unsigned int)':
../../llvm-gcc.src/gcc/llvm-convert.cpp:1528: error: 'memset_i32' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp:1528: error: 'memset_i64' is not a member of 'llvm::Intrinsic'
make[3]: *** [llvm-convert.o] Error 1
make[3]: *** Waiting for unfinished jobs....
rm fsf-funding.pod gcov.pod gfdl.pod cpp.pod gpl.pod gcc.pod
make[2]: *** [all-stage1-gcc] Error 2
make[1]: *** [stage1-bubble] Error 2
make: *** [all] Error 2



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59809 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 09:09:41 +00:00
Sanjiv Gupta
219ab405e6 Make mem[cpy,move,set] intrinsics overloaded.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59802 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 07:49:09 +00:00
Dan Gohman
cddd428459 Add a flag to SDep for tracking which edges are anti-dependence edges.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59785 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 02:27:52 +00:00
Bill Wendling
e1a6d160e5 Update comment to reflect a semblance of reality.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59784 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 02:24:44 +00:00
Dan Gohman
98adea1149 Rename SDep's isSpecial to isArtificial, to make this field a little
less mysterious.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59782 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 02:18:56 +00:00
Bill Wendling
1c55a9c0cc Rename "ADDO" to "SADDO" and "UADDO". The "UADDO" isn't equivalent to "ADDC"
because the boolean it returns to indicate an overflow may not be treated like
as a flag. It could be stored to memory, for instance.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59780 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 02:12:42 +00:00
Bill Wendling
7cdc3c8ad2 Implement the sadd_with_overflow intrinsic. This is converted into
"ISD::ADDO". ISD::ADDO is lowered into a target-independent form that does the
addition and then checks if the result is less than one of the operands. (If it
is, then there was an overflow.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59779 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 02:03:52 +00:00
Bill Wendling
08c85d1209 Update comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59766 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 00:45:00 +00:00
Dan Gohman
c8c2827993 Implement ComputeLatency for MachineInstr ScheduleDAGs. Factor
some of the latency computation logic out of the SDNode
ScheduleDAG code into a TargetInstrItineraries helper method
to help with this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59761 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 00:12:10 +00:00
Bill Wendling
ea7b527aa5 Add UADDO and SADDO nodes. These will be used for determining an overflow
condition in an addition operation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59760 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 00:11:16 +00:00
Bill Wendling
e6ed6ecfb0 Introduce two new "add" intrinsics. These return the sum plus a bit indicating
that an overflow/carry occured. These are converted into ISD::[SU]ADDO nodes,
which are lowered in a target-independent way into something sane. Eventually,
each target can implement their own method of checking the overflow/carry flags.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59756 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-21 00:05:31 +00:00
Dan Gohman
eb3904bc25 Delete redundant inline keywords.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59754 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20 22:10:21 +00:00
Dan Gohman
33372a18c5 Doxygenate comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59753 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20 22:09:52 +00:00
Bill Wendling
8449edf599 Reformatting. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59717 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20 07:23:34 +00:00
Chris Lattner
0fbdfc3664 add an operator= to assign to smallstring.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59715 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20 07:09:17 +00:00
Evan Cheng
d37c13cfd1 - Register scavenger should use MachineRegisterInfo and internal map to find the first use of a register after a given machine instruction.
- When scavenging a register, in addition to the spill, insert a restore before the first use.
- Abort if client is looking to scavenge a register even when a previously scavenged register is still live.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59697 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20 02:32:35 +00:00
Dan Gohman
a1e6d363e5 Factor out the code for verifying the work of the scheduler,
extend it a bit, and make use of it in all schedulers, to
ensure consistent checking.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59689 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-20 01:26:25 +00:00
Dan Gohman
343f0c0467 Experimental post-pass scheduling support. Post-pass scheduling
is currently off by default, and can be enabled with
-disable-post-RA-scheduler=false.

This doesn't have a significant impact on most code yet because it doesn't
yet do anything to address anti-dependencies and it doesn't attempt to
disambiguate memory references. Also, several popular targets
don't have pipeline descriptions yet.

The majority of the changes here are splitting the SelectionDAG-specific
code out of ScheduleDAG, so that ScheduleDAG can be moved to
libLLVMCodeGen.a. The interface between ScheduleDAG-using code and
the rest of the scheduling code is somewhat rough and will evolve.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59676 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 23:18:57 +00:00
Dan Gohman
7d1cd3f21d Move the code for printing a graph node label for an SUnit into
a virtual method of SelectionDAG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59667 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 22:09:45 +00:00
Dan Gohman
252ae9e8ae Convert SUnit's dump method into a print method and implement
dump in terms of it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59665 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 21:32:03 +00:00
Devang Patel
dfca407c79 Do not use separate utility to walk all instructions and remove dead dbg intrinsics. Let instcombiner do this job.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59659 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 19:01:37 +00:00
Sanjiv Gupta
021f3f252e Int type for PIC16 is i16. Added i16 intrinsics for memmove, memcpy and memset.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59612 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 08:50:17 +00:00
Chris Lattner
16062ca93a add a write method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59595 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 06:45:06 +00:00
Daniel Dunbar
911cfdb7d7 LLVMC2: -emit-llvm stops compilation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59586 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 04:15:56 +00:00
Daniel Dunbar
ff6477b720 LLVMC2: Teach llvm_gcc_c tool about -include and -fsyntax-only.
- Only focusing on llvm_gcc_c for now, eventually this needs to be
   refactored so it can be shared via all the gcc-like tools.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59582 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-19 02:59:00 +00:00
Evan Cheng
01f63cdb04 Fix indentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59558 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 22:27:13 +00:00
Devang Patel
f17fc461d1 Add new helper pass that strips all symbol names except debugging information.
This pass makes it easier to test wheter debugging info. influences optimization passes or not.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59552 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 21:34:39 +00:00
Oscar Fuentes
56608780c3 CMake: Remove HAVE_LT_DLOPEN from config.h.cmake because it was
removed from config.h.in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59546 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 21:12:01 +00:00
Dan Gohman
cbad42cfd1 Add more const qualifiers. This fixes build breakage from r59540.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59542 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 19:49:32 +00:00
Dan Gohman
b3b930a011 Make some methods const.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59540 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 19:04:29 +00:00
Dan Gohman
3dbc4e3502 Whitespace cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59532 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 17:05:42 +00:00
Bill Wendling
5734450d40 Rename stackprotector_create intrinsic to stackprotector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59519 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 11:01:33 +00:00
Nicolas Geoffray
67c8c4caba Implement support for JIT exceptions on X86_64. Relative offsets are
encoded on 32 bytes, and the personality function is not encoded as
relative.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59516 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 10:44:46 +00:00
Bill Wendling
733bbc5320 Remove the stackprotector_check intrinsic. Use a volatile load instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59504 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 07:30:57 +00:00
Dan Gohman
3cc6243ddf Change SUnit's dump method to take a ScheduleDAG* instead of
a SelectionDAG*.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59488 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 02:06:40 +00:00
Dan Gohman
e45b6f10e2 There is no InstrStage class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59480 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-18 01:05:04 +00:00
Mikhail Glushenkov
35fde15059 Support dependencies between plugins by priority-sorting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59449 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17 17:30:25 +00:00
Mikhail Glushenkov
010887765a Add a layer of indirection to make plugins more flexible.
Use strings instead of TableGen defs in the compilation graph
definition. Makes it easier for the plugins to modify an existing graph.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59447 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17 17:29:18 +00:00
Zhongxing Xu
69e3bd10ec move partial template specialization to FoldingSet.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59434 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-17 02:40:00 +00:00
Zhongxing Xu
0cf717d6b8 Fix 80-col violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59394 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-16 04:44:41 +00:00
Chris Lattner
a236c89ee3 add a new m_Specific pattern that matches only if we have a specific Value*.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59393 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-16 04:38:30 +00:00
Chris Lattner
67abc10616 add a new template for matching a select between two constants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59391 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-16 04:33:10 +00:00
Zhongxing Xu
f5b55475b3 Add partial specialization of FoldingSetTrait for ImmutableList.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59387 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-16 04:23:49 +00:00
Zhongxing Xu
2c228834fc Fix 80-column violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59385 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-16 04:14:33 +00:00
Nick Lewycky
ac44d25bdd Clean up some strange whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59373 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-15 20:32:33 +00:00
Zhongxing Xu
2ef5d4cd6a Add Profile method to ImmutableList.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59362 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-15 09:26:02 +00:00
Oscar Fuentes
50925fbed4 CMake: Adds header and TableGen files to Visual Studio solution. A new
dummy library, `llvm_headers_do_not_build', is created for containing
all header and TableGen files under include/llvm.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59346 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-15 02:08:08 +00:00
Oscar Fuentes
422fcf3837 CMake: Moved generation of Intrinsics.gen to
include/llvm/CMakeLists.txt. Does it with the `tablegen' cmake macro.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59342 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-15 00:24:38 +00:00
Dan Gohman
7e6a1bc0fa Add support for building a ScheduleDAG from MachineInstrs. This is currently
fairly conservative; it doesn't do alias-analysis queries and it doesn't
attempt to break anti-dependencies.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59324 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-14 21:47:58 +00:00
Richard Osborne
1d8f975890 Add XCore intrinsics for getid (returns thread id) and bitrev (reverses
bits in a word).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59296 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-14 10:12:16 +00:00
Dan Gohman
59d5f1d13b Add a version of NewSUnit for creating units with MachineInstrs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59282 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-14 00:41:36 +00:00
Dan Gohman
f449bf36ef Initial support for carrying MachineInstrs in SUnits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59278 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-14 00:06:09 +00:00
Dan Gohman
ae78a88e12 Clarify the comment about NumPreds and NumSuccs to reflect that they only
count non-control preds and succs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59276 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-13 23:41:41 +00:00
Dan Gohman
d23e0f81bc Remove the FlaggedNodes member from SUnit. Instead of requiring each SUnit
to carry a SmallVector of flagged nodes, just calculate the flagged nodes
dynamically when they are needed.

The local-liveness change is due to a trivial scheduling change where
the scheduler arbitrary decision differently.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59273 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-13 23:24:17 +00:00
Dale Johannesen
330169fa3e Extend InlineAsm::C_Register to allow multiple specific registers
(actually, code already all worked, only the comment
changed).  Use this to implement 'A' constraint on x86.
Fixes PR 1779.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59266 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-13 21:52:36 +00:00
Dan Gohman
550f5afb68 Make the Node member of SUnit private, and add accessors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59264 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-13 21:36:12 +00:00
Dan Gohman
a23b3b803e Change ScheduleDAG's DAG member from a reference to a pointer, to prepare
for the possibility of scheduling without a SelectionDAG being present.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59263 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-13 21:21:28 +00:00
Bill Wendling
cdcc3e6e12 Modify the intrinsics pattern to separate out the "return" types from the
"parameter" types. An intrinsic can now return a multiple return values like
this:

  def add_with_overflow : Intrinsic<[llvm_i32_ty, llvm_i1_ty],
                                    [LLVMMatchType<0>, LLVMMatchType<0>]>;



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59237 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-13 09:08:33 +00:00
Daniel Dunbar
0d9eb9b491 Add Binary flag to raw_fd_ostream constructor.
Document raw_fd_ostream's treatment of "-".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59219 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-13 05:01:07 +00:00
Bill Wendling
e9e6bdf27f Implement stack protectors as function attributes: "ssp" and "sspreq".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59202 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-13 01:02:14 +00:00
Dan Gohman
7fc610f073 Revert the part of r59145 that changed the comment about
virtual registers possibly having multiple kills while still
being defined and killed in the same block. If LiveIntervals
is manually re-run after two-address lowering, it currently
does add extra kills to two-address instructions, but this
is considered a bug.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59194 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12 23:24:15 +00:00
Dan Gohman
bc5cbb8be9 Move the code that inserts X87 FP_REG_KILL instructions from a
special-purpose hook to a new pass. Also, add check to see if any
x87 virtual registers are used, to avoid doing any work in the
common case that no x87 code is needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59190 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12 22:55:05 +00:00
Dan Gohman
e8f4ac2b10 Update VarInfo's comments to reflect the current code. LiveVar
no longer records a unique defining instruction, and virtual
registers may have multiple kills while still being defined
and killed in the same block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59145 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12 17:02:24 +00:00
Dan Gohman
4974b6aae1 Correct a function name in a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59143 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12 16:53:40 +00:00
Tanya Lattner
0a6b8fd44a Add ptr annotation intrinsic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59106 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-12 07:17:57 +00:00
Devang Patel
94b29c3eac Undo previous check-in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59092 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11 23:57:33 +00:00
Devang Patel
90d45b8a4a Add utility pass to remove dbg info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59068 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11 19:33:39 +00:00
Dan Gohman
9b75b37375 Change the scheduler accessor methods to accept an explicit TargetMachine
argument instead of taking the SelectionDAG's TargetMachine. This is
needed for some upcoming scheduler changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59055 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11 17:50:47 +00:00
Mon P Wang
00ec49b6ba Cleaned up and fix bugs in convert_rndsat node
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59025 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11 05:40:06 +00:00
Devang Patel
780c38d84f Add utility routines to remove dead debug info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59011 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-11 00:53:02 +00:00
Mon P Wang
77cdf30742 Added CONVERT_RNDSAT (conversion with rounding and saturation) SDNode to
support targets that support these conversions. Users should avoid using
this node as the current targets don't generating code for it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59001 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-10 20:54:11 +00:00
Duncan Sands
6959b2bb65 Small cleanups. No functionality change intended!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58992 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-10 17:29:56 +00:00
Duncan Sands
c04b6917c1 Work around PR1000.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58984 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-10 10:05:09 +00:00
Chris Lattner
886645a3c3 split out the functionality of utohexstr into a new utohex_buffer
helper.  This allows us to convert numbers to hex without necessarily
needing to make a std::string to hold the result.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58961 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-10 04:22:46 +00:00
Chris Lattner
497a7a81a8 Move getCastToEmpty out of DIDescriptor into DIFactory. It is an
implementation detail of DIFactory anyway, and this allows it to avoid
recomputing the same type over and over.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58960 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-10 04:10:34 +00:00
Chris Lattner
3b78185a18 Fix a bug with default arguments that apple gcc doesn't notice that llvmbb does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58958 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-10 03:11:39 +00:00