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5295 Commits

Author SHA1 Message Date
Dan Gohman
4c18394001 Include a frame index in the "fixed stack" pseudo source value 
instead of using the frame index for the SVOffset, which was
inconsistent.

llvm-svn: 53486
 2008-07-11 22:44:52 +00:00
Dan Gohman
b21183f645 Fix an obsolete top-level comment. 
llvm-svn: 53481
 2008-07-11 22:39:58 +00:00
Dan Gohman
3b91ef27b5 Factor out debugging code into the common base class. 
llvm-svn: 53480
 2008-07-11 22:36:22 +00:00
Dan Gohman
6ee2195ab1 Add support for putting NamedRegionTimers in TimerGroups, and 
use a timer group for the timers in SelectionDAGISel. Also,
Split scheduling out from emitting, to give each their own
timer.

llvm-svn: 53476
 2008-07-11 21:54:34 +00:00
Dan Gohman
d7a32ecde2 Trim unnecessary #includes. 
llvm-svn: 53471
 2008-07-11 20:38:31 +00:00
Duncan Sands
eb04d356e3 Remove an apparently useless routine: there should 
be no need to split the result of a vector RET node,
since they are always already legal.

llvm-svn: 53462
 2008-07-11 17:02:09 +00:00
Duncan Sands
1e3fe05638 It is pointless to turn a UINT_TO_FP into an 
SINT_TO_FP libcall plus additional operations:
it might as well be a direct UINT_TO_FP libcall.
So only turn it into an SINT_TO_FP if the target
has special handling for SINT_TO_FP.

llvm-svn: 53461
 2008-07-11 17:00:14 +00:00
Duncan Sands
58130a26f4 Add two missing SINT_TO_FP libcalls. 
llvm-svn: 53460
 2008-07-11 16:57:02 +00:00
Duncan Sands
52f1dbf139 Port a shift-by-1 optimization from LegalizeDAG: it 
was presumably added after the rest of the code was
copied to LegalizeTypes.

llvm-svn: 53459
 2008-07-11 16:54:57 +00:00
Duncan Sands
669d4d6909 Add support for 128 bit shifts and 32 bit shifts 
on 16 bit machines.

llvm-svn: 53458
 2008-07-11 16:52:29 +00:00
Chris Lattner
78d60a220b Fix a bug in the soft-float handling of FCOPYSIGN that Duncan noticed 
when working on legalizetypes.  Both legalizetypes and legalizeops now
produce hte same code for CodeGen/ARM/fcopysign.ll.

llvm-svn: 53435
 2008-07-10 23:46:13 +00:00
Chris Lattner
5e784a8ebd make legalize types be a command line option: -enable-legalize-types. 
llvm-svn: 53434
 2008-07-10 23:37:50 +00:00
Dan Gohman
1f42b96c7e Make stack slot coloring's debug output more consistent with 
other passes.

llvm-svn: 53415
 2008-07-10 19:49:32 +00:00
Evan Cheng
d7023b66ea Change StackSlotForVirtReg (which maps vregs to frame indices) from std::map to IndexedMap. 
llvm-svn: 53414
 2008-07-10 18:23:23 +00:00
Duncan Sands
a6c09579f0 Add support for 128 bit multiplicative operations. 
Lack of these caused a bootstrap failure with Fortran
on x86-64 with LegalizeTypes turned on.  While there,
be nice to 16 bit machines and support expansion of
i32 too.

llvm-svn: 53408
 2008-07-10 15:35:05 +00:00
Duncan Sands
90a916539d Add a mysteriously missing libcall, FPTOSINT_F80_I32. 
Be nice to 16 bit machines by supporting FP_TO_XINT
expansion for these.

llvm-svn: 53407
 2008-07-10 15:33:02 +00:00
Duncan Sands
91912e046a Fix a FIXME: use an apint in CTTZ legalization. 
llvm-svn: 53406
 2008-07-10 15:30:54 +00:00
Duncan Sands
f2734eabf2 Remove PromoteIntRes_FP_ROUND - not sure what it 
was doing there: FP_ROUND returns a float, not an
integer.

llvm-svn: 53405
 2008-07-10 15:29:55 +00:00
Duncan Sands
16f5ab06b0 Make sure the alignment of the temporary created 
in CreateStackStoreLoad is good enough for both
the source and destination types.

llvm-svn: 53404
 2008-07-10 15:26:17 +00:00
Duncan Sands
a219bb03e1 Make the LegalizeType method naming scheme more regular. 
llvm-svn: 53403
 2008-07-10 15:25:04 +00:00
Duncan Sands
8afe39dc56 Don't barf when dumping a constant that contains 
a ginormous value (eg: i128 -1).

llvm-svn: 53402
 2008-07-10 11:23:14 +00:00
Evan Cheng
3ec3113431 - Change the horrible N^2 isRegReDefinedByTwoAddr. Now callers must supply the operand index of def machineoperand and at most one full scan of non-implicit operands is needed. 
- Change local register allocator to use the new isRegReDefinedByTwoAddr instead of reinventing the wheel.

llvm-svn: 53394
 2008-07-10 07:35:43 +00:00
Owen Anderson
65e43ae1e8 Use DenseMap instead of std::map in local register allocation. This improves the time on instcombine from .31s to .22s 
llvm-svn: 53390
 2008-07-10 01:56:35 +00:00
Owen Anderson
189609bb36 Fix 403.gcc. Finally got the check for two-address-ness correct. 
llvm-svn: 53389
 2008-07-10 01:53:01 +00:00
Owen Anderson
35080ed650 Revert r53367, which was breaking things. 
llvm-svn: 53378
 2008-07-09 23:09:10 +00:00
Dan Gohman
e10fc737ca Simplify hasNUsesOfValue and hasAnyUsesOfValue even more. This 
makes their special-case checks of use_size() less beneficial,
so remove them. This eliminates all but one use of use_size(),
which is in AssignTopologicalOrder, which uses it only once for
each node, and so can reasonably afford to recompute it, as
this allows the UsesSize field of SDNode to be removed
altogether.

llvm-svn: 53377
 2008-07-09 23:03:14 +00:00
Dan Gohman
6ba50d7fc1 hasAnyUseOfValue can check SDUse nodes of its users directly instead 
of examining every operand of every user.

llvm-svn: 53374
 2008-07-09 22:39:01 +00:00
Dan Gohman
679872b05f Move MemoryVT out of LSBaseNode into MemSDNode, allowing the 
getMemOperand function to be moved into the base class as well
and made non-virtual.

llvm-svn: 53372
 2008-07-09 22:08:04 +00:00
Evan Cheng
082f7f802e Avoid creating expensive comment string if it's not going to be printed. 
llvm-svn: 53369
 2008-07-09 21:53:02 +00:00
Owen Anderson
8174cf28a3 Loosen our check here. Local regalloc only cares that the reg is used and def'd by the same instruction, but about the details of 
the relationship.

llvm-svn: 53367
 2008-07-09 21:34:36 +00:00
Dan Gohman
f6e651fcf2 Move the IsVolatile and SVOffset fields into the MemSDNode base 
class, and store IsVolatile and Alignment in a more compact form.
This makes AtomicSDNode slightly larger, but it shrinks LoadSDNode
and StoreSDNode, which are much more common and are the largest of
the SDNode subclasses. Also, this lets the isVolatile() and
getAlignment() accessors be non-virtual.

llvm-svn: 53361
 2008-07-09 21:23:02 +00:00
Owen Anderson
50a64de51e Don't use an expensive check for two-address-ness when we have the information sitting around to determine it much more quickly, 
This speeds up the local register allocator from 0.37s to 0.31s on instcombine.

llvm-svn: 53359
 2008-07-09 21:15:10 +00:00
Owen Anderson
58912683fd Factor local liveness computation out into its own function. 
llvm-svn: 53352
 2008-07-09 20:14:53 +00:00
Dan Gohman
0975e33ffc Reuse the MO variable instead of recomputing it in RegAllocLocal. 
Keep RegAllocSimple in sync.

llvm-svn: 53351
 2008-07-09 20:12:26 +00:00
Dan Gohman
c27e4e9651 Give RegAllocSimple a TargetInstrInfo member to keep it consistent 
with RegAllocLocal.

llvm-svn: 53347
 2008-07-09 19:56:01 +00:00
Dan Gohman
ad2c9877ce RegAllocLocal has a TargetInstrInfo data member. Use it instead 
of having local variables duplicate it.

llvm-svn: 53346
 2008-07-09 19:55:19 +00:00
Dan Gohman
4d221ae533 Use find with std::map, when that's what's needed, instead of lower_bound 
with extra checks.

llvm-svn: 53344
 2008-07-09 19:51:00 +00:00
Anton Korobeynikov
f16db15839 Switch to new section name handling facility 
llvm-svn: 53316
 2008-07-09 13:27:16 +00:00
Duncan Sands
e66e7b80f0 Remove some unneeded includes. 
llvm-svn: 53289
 2008-07-09 12:08:25 +00:00
Duncan Sands
828e080f3b Redo LegalizeTypes soft float support for 
SINT_TO_FP and UINT_TO_FP.  This now produces
the same code as LegalizeDAG (the previous
code was based on a mistaken idea of what
LegalizeDAG did in this case).

llvm-svn: 53288
 2008-07-09 12:07:22 +00:00
Duncan Sands
bc816b10f7 Forgot to update the chain result when softening 
loads.

llvm-svn: 53287
 2008-07-09 11:15:31 +00:00
Duncan Sands
cb4999041b LegalizeTypes soft float support for FP_TO_SINT and 
FP_TO_UINT.

llvm-svn: 53286
 2008-07-09 11:13:46 +00:00
Duncan Sands
c8d39ae369 LegalizeTypes support for powi soft float. 
llvm-svn: 53285
 2008-07-09 11:11:47 +00:00
Duncan Sands
d5c6d06980 Make the role of MVT::i32 clearer here, and add a 
note since it is not clear whether it is correct.

llvm-svn: 53284
 2008-07-09 08:07:41 +00:00
Evan Cheng
098905497f Missed alignment argument on stores lowered from memcpy. 
llvm-svn: 53281
 2008-07-09 06:38:06 +00:00
Bill Wendling
3119083ee6 Make the DICountVisitor not a visitor. This keeps us from calling virtual 
functions and junk.

llvm-svn: 53279
 2008-07-09 06:02:33 +00:00
Dan Gohman
2e23cd5a18 const-ify SelectionDAG::getNodeValueTypes. 
llvm-svn: 53264
 2008-07-09 00:00:42 +00:00
Dan Gohman
9f1547684c It's no longer necessary to test if a MachineBasicBlock's 
parent is non-null. It now always is.

llvm-svn: 53263
 2008-07-08 23:59:09 +00:00
Dan Gohman
286e8f7295 Verify that MachineMemOperand alignment is a non-zero power of 2. 
llvm-svn: 53262
 2008-07-08 23:47:04 +00:00
Dan Gohman
5b24b3baef Factor out the code for computing an alignment value, and make it 
available to getAtomic in addition to just getLoad and getStore,
to prevent MachineMemOperands with 0 alignment.

llvm-svn: 53261
 2008-07-08 23:46:32 +00:00