Commit Graph

68671 Commits

Author SHA1 Message Date
Duncan Sands
566edb04b8 Add generic simplification of associative operations, generalizing
a couple of existing transforms.  This fires surprisingly often, for
example when compiling gcc "(X+(-1))+1->X" fires quite a lot as well
as various "and" simplifications (usually with a phi node operand).
Most of the time this doesn't make a real difference since the same
thing would have been done elsewhere anyway, eg: by instcombine, but
there are a few places where this results in simplifications that we
were not doing before.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122326 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 08:49:00 +00:00
Cameron Zwarich
47bce43229 Incremental progress towards a new implementation of StrongPHIElimination. Most
of the problems with my last attempt were in the updating of LiveIntervals
rather than the coalescing itself. Therefore, I decided to get that right first
by essentially reimplementing the existing PHIElimination using LiveIntervals.

It works correctly, with only a few tests failing (which may not be legitimate
failures) and no new verifier failures (at least as far as I can tell, I didn't
count the number per file).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122321 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 06:54:43 +00:00
Bob Wilson
316009054e Add ARM-specific DAG combining to cast i64 vector element load/stores to f64.
Type legalization splits up i64 values into pairs of i32 values, which leads
to poor quality code when inserting or extracting i64 vector elements.
If the vector element is loaded or stored, it can be treated as an f64 value
and loaded or stored directly from a VPR register.  Use the pre-legalization
DAG combiner to cast those vector elements to f64 types so that the type
legalizer won't mess them up.  Radar 8755338.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122319 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 06:43:19 +00:00
Rafael Espindola
62b83b62f3 Layout one section until no relaxations are done and then move to the next
section.

This helps because in practice sections form a dag with debug sections pointing
to text sections. Finishing up the text sections first makes the debug section
relaxation trivial.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122314 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 04:22:09 +00:00
Eric Christopher
c19aadb8b0 Arm and thumb call instructions are also in different orders.
Fixes rdar://8782223


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122313 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 03:50:43 +00:00
Bill Wendling
b8602039f1 Grammar corrections and some formatting changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122312 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 03:31:05 +00:00
Chris Lattner
f1b4eafbfe rename MVT::Flag to MVT::Glue. "Flag" is a terrible name for
something that just glues two nodes together, even if it is
sometimes used for flags.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122310 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 02:38:05 +00:00
Eric Christopher
6e90ce21cc If we're not using reg+reg offset we're using reg+imm, set the opcode
to be the one we want to use. bugpoint reduced testcase is a little large,
I'll see if I can simplify it down more.

Fixes part of rdar://8782207


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122307 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 02:12:07 +00:00
Chris Lattner
5df1578dec improve "cannot yet select" errors a trivial amount: now
they are just as useless, but at least a bit more gramatical


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122305 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 02:07:03 +00:00
Bill Wendling
a519d57725 Fix a copy-pasto. When the tBR_JTr instruction was converted to using the
tPseudoInst class, its size was changed from "special" to "2 bytes". This is
incorrect because the jump table will no longer be taken into account when
calculating branch offsets.
<rdar://problem/8782216>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122303 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 01:57:15 +00:00
Bill Wendling
9a4d2e40a0 Comment cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122302 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 01:54:40 +00:00
Jakob Stoklund Olesen
8d0963f72c Add EdgeBundles to SplitKit.
Edge bundles is an annotation on the CFG that turns it into a bipartite directed
graph where each basic block is connected to an outgoing and an ingoing bundle.
These bundles are useful for identifying regions of the CFG for live range
splitting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122301 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 01:50:21 +00:00
Jakob Stoklund Olesen
b907e8a2d4 Use IntEqClasses to compute connected components of live intervals.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122296 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 00:48:17 +00:00
Jakob Stoklund Olesen
2a6899c539 Add ADT/IntEqClasses.h as a light-weight implementation of EquivalenceClasses.h.
This implementation already exists as ConnectedVNInfoEqClasses in
LiveInterval.cpp, and it seems to be generally useful to have a light-weight way
of forming equivalence classes of small integers.

IntEqClasses doesn't allow enumeration of the elements in a class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122293 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-21 00:04:46 +00:00
Owen Anderson
4d3daab1a1 Speculatively revert the use of DenseMap in LazyValueInfo, which may be causing Linux self-host failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122291 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 23:53:19 +00:00
Owen Anderson
bb39ac1458 Attempt to appease the DragonEgg buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122288 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 23:23:18 +00:00
Owen Anderson
3b77f56194 Revert r122114 (CallbackVH observing use-list changes) because it caused severe slowdowns on the Linux self-host configuration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122279 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 22:28:03 +00:00
Nate Begeman
672fb6225b Implement feedback from Bruno on making pblendvb an x86-specific ISD node in addition to being an intrinsic, and convert
lowering to use it.  Hopefully the pattern fragment is doing the right thing with XMM0, looks correct in testing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122277 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 22:04:24 +00:00
Wesley Peck
d5fe3efde3 Update the target feature matrix to reflect some new features in the MBlaze backend.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122276 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 21:54:50 +00:00
Owen Anderson
aa6f105629 Convert one of LVI's primary maps to a DenseMap, now that we know are more assured of iterator stability.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122273 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 21:30:54 +00:00
Wesley Peck
d66a32c35f Teach the MBlaze disassembler to disassemble special purpose registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122269 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 21:18:04 +00:00
Roman Divacky
d149186e15 Set the value of absolute symbols.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122268 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 21:14:39 +00:00
Bill Wendling
d7a0852464 This is still used and issuing an annoying warning. Don't deprecate something in
the library unless *all* uses have been converted over to the new form.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122267 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 21:14:18 +00:00
Duncan Sands
69fdf876e1 Oops, forgot to add the pass itself!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122265 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 21:07:42 +00:00
Duncan Sands
43ff68ded0 Add a new convenience pass for testing InstructionSimplify. Previously
it could only be tested indirectly, via instcombine, gvn or some other
pass that makes use of InstructionSimplify, which means that testcases
had to be carefully contrived to dance around any other transformations
that that pass did.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122264 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 20:54:37 +00:00
Roman Divacky
1ae3c165f7 Print all 64bits for st_value and st_size. Adjust tests accordingly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122263 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 20:49:43 +00:00
Wesley Peck
9c0068f0a3 Teach the MBlaze asm parser how to parse special purpose register names.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122261 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 20:43:24 +00:00
Dale Johannesen
025cc6e1be Cosmetic changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122259 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 20:10:50 +00:00
Benjamin Kramer
b0de244f23 Add a check missing from my last commit and avoid a potential overflow situation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122258 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 20:00:31 +00:00
Owen Anderson
87790abb08 More LVI cleanups, including trying to simplify the process of maintaining the OverDefinedCache.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122256 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 19:33:41 +00:00
Owen Anderson
6186394528 Reuse the reference into the LVI cache throughout the solver subsystem. This is much easier to
verify as being safe thanks its recent de-recursivization.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122254 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 18:18:16 +00:00
Benjamin Kramer
4dc1ac0947 Reduce indentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122249 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 16:21:59 +00:00
Benjamin Kramer
5337f20c15 Teach InstCombine to merge (icmp ult (X + CA), C1) | (icmp eq X, C2) into (icmp ult (X + CA), C1 + 1) if C2 + CA == C1.
InstCombine creates these so now we compile x == 23 || x == 24 || x == 25 to
  %x.off = add i32 %x, -23
  %1 = icmp ult i32 %x.off, 3
instead of
  %x.off = add i32 %x, -23
  %1 = icmp ult i32 %x.off, 2
  %cmp3 = icmp eq i32 %x, 25
  %ret2 = or i1 %1, %cmp3


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122248 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 16:18:51 +00:00
Daniel Dunbar
67e0c212c2 Add header...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122247 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 15:45:51 +00:00
Daniel Dunbar
9b2f25e313 X86/MC/Mach-O: Split out createX86MachObjectWriter().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122246 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 15:07:39 +00:00
Duncan Sands
ee9a2e322a Have SimplifyBinOp dispatch Xor, Add and Sub to the corresponding methods
(they had just been forgotten before).  Adding Xor causes "main" in the
existing testcase 2010-11-01-lshr-mask.ll to be hugely more simplified.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122245 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 14:47:04 +00:00
Michael J. Spencer
c41f4de754 Fix spelling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122244 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 13:30:37 +00:00
Michael J. Spencer
2d484eb88d Support/PathV2: Add missing has_relative_path impl.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122243 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 13:30:28 +00:00
Duncan Sands
0d7ce5ffa4 There is no need for isAssociative to take the type as an argument anymore.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122242 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 13:10:23 +00:00
Duncan Sands
8e4f4390bc Discourage people from using isWeakForLinker when they should be using
mayBeOverridden.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122241 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 10:57:01 +00:00
Oscar Fuentes
784a176bc3 New cmake option LLVM_APPEND_VC_REV for controlling when the VC
revision id is appended to the LLVM version string. Defaults to
OFF.

Until now the VC revision id was always appended to the revision
string whenever cmake was invoked (either explicitly or implicitly
because a cmake source file changed). This was causing massive
recompilations because config.h are reconfigured with the new contents
of PACKAGE_VERSION.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122240 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 09:47:13 +00:00
Oscar Fuentes
ec33e8dcd6 Update cmake library dependencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122239 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 09:47:08 +00:00
Chris Lattner
2b9375e44b fix PR8807 by making transformConstExprCastCall aware of byval arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122238 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 08:36:38 +00:00
Chris Lattner
ab215bc371 various cleanups for transformConstExprCastCall
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122237 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 08:25:06 +00:00
Chris Lattner
0b66f63a26 when eliding a byval copy due to inlining a readonly function, we have
to make sure that the reused alloca has sufficient alignment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122236 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 08:10:40 +00:00
Chris Lattner
e7ae705c32 pull byval processing out to its own helper function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122235 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 07:57:41 +00:00
Chris Lattner
018fb767b9 fix PR8769, a miscompilation by inliner when inlining a function with a byval
argument.  The generated alloca has to have at least the alignment of the
byval, if not, the client may be making assumptions that the new alloca won't
satisfy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122234 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 07:45:28 +00:00
Chris Lattner
572335915f merge two tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122233 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 07:39:57 +00:00
Chris Lattner
b0af8ce1d9 filecheckize
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122232 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 07:38:24 +00:00
Cameron Zwarich
2100d21f39 MachineVerifier should count landing pad successors as basic blocks rather than
out-edges. Fixes PR8824.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122228 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-20 04:19:48 +00:00