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6539 Commits

Author SHA1 Message Date
Christopher Lamb
6634e26aa1 Get rid of a pseudo instruction and replace it with subreg based operation on real instructions, ridding the asm printers of the hack used to do this previously. In the process, update LowerSubregs to be careful about eliminating copies that have side affects. 
Note: the coalescer will have to be careful about this too, when it starts coalescing insert_subreg nodes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48329 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-13 05:47:01 +00:00
Chris Lattner
d5d94df73f move a bunch of trivial methods to be inline. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48326 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-13 05:00:21 +00:00
Chris Lattner
041221c097 Various improvements suggested by Duncan 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48325 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-13 04:33:03 +00:00
Evan Cheng
fe666a3592 Improve VarInfo::removeKill() by using std::find instead of linear search. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48321 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-13 02:42:55 +00:00
Dan Gohman
0961ec1afe Change PMTopLevelManager's PassManagers vector element type from 
Pass* to PMDataManager*. PMDataManager is more specific than Pass,
so this more accurately describes the objects that are being stored.

This eliminates the need for several dynamic_casts to PMDataManager*.
It does introduce one dynamic_cast though, in dumpPasses(). Give
this one a comment describing why a dynamic_cast is being used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48315 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-13 01:48:32 +00:00
Dan Gohman
c2f12ab5e5 Change PMStack::push to accept a PMDataManager* instead of 
a Pass*. PMDataManager* is what it actually holds, so this
makes it clearer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48314 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-13 01:21:31 +00:00
Dan Gohman
0ecd4c1a55 Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48313 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-13 01:08:50 +00:00
Dan Gohman
59746c2516 No need for typedefs with enums in C++. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48312 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-13 01:07:53 +00:00
Evan Cheng
b27087f5aa Refactor some code out of MachineSink into a MachineInstr query. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48311 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-13 00:44:09 +00:00
Evan Cheng
9e23336d0c Experimental scheduler change to schedule / coalesce the copies added for function livein's. Take 2008-03-10-RegAllocInfLoop.ll, the schedule looks like this after these copies are inserted: 
entry: 0x12049d0, LLVM BB @0x1201fd0, ID#0:
Live Ins: %EAX %EDX %ECX
        %reg1031<def> = MOVPC32r 0
        %reg1032<def> = ADD32ri %reg1031, <es:_GLOBAL_OFFSET_TABLE_>, %EFLAGS<imp-def>
        %reg1028<def> = MOV32rr %EAX
        %reg1029<def> = MOV32rr %EDX
        %reg1030<def> = MOV32rr %ECX
        %reg1027<def> = MOV8rm %reg0, 1, %reg0, 0, Mem:LD(1,1) [0x1201910 + 0]
        %reg1025<def> = MOV32rr %reg1029
        %reg1026<def> = MOV32rr %reg1030
        %reg1024<def> = MOV32rr %reg1028

The copies unnecessarily increase register pressure and it will end up requiring a physical register to be spilled.

With -schedule-livein-copies:
entry: 0x12049d0, LLVM BB @0x1201fa0, ID#0:
Live Ins: %EAX %EDX %ECX
        %reg1031<def> = MOVPC32r 0
        %reg1032<def> = ADD32ri %reg1031, <es:_GLOBAL_OFFSET_TABLE_>, %EFLAGS<imp-def>
        %reg1024<def> = MOV32rr %EAX
        %reg1025<def> = MOV32rr %EDX
        %reg1026<def> = MOV32rr %ECX
        %reg1027<def> = MOV8rm %reg0, 1, %reg0, 0, Mem:LD(1,1) [0x12018e0 + 0]

Much better!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48307 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-12 22:19:41 +00:00
Duncan Sands
25eb043759 Don't try to extract an i32 from an f64. This 
getCopyToParts problem was noticed by the new
LegalizeTypes infrastructure.  In order to avoid
this kind of thing in the future I've added a
check that EXTRACT_ELEMENT is only used with
integers.  Once LegalizeTypes is up and running
most likely BUILD_PAIR and EXTRACT_ELEMENT can
be removed, in favour of using apints instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48294 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-12 20:30:08 +00:00
Chris Lattner
58d74910c6 Reimplement the parameter attributes support, phase #1. hilights: 
1. There is now a "PAListPtr" class, which is a smart pointer around
   the underlying uniqued parameter attribute list object, and manages
   its refcount.  It is now impossible to mess up the refcount.
2. PAListPtr is now the main interface to the underlying object, and
   the underlying object is now completely opaque.
3. Implementation details like SmallVector and FoldingSet are now no
   longer part of the interface.
4. You can create a PAListPtr with an arbitrary sequence of
   ParamAttrsWithIndex's, no need to make a SmallVector of a specific 
   size (you can just use an array or scalar or vector if you wish).
5. All the client code that had to check for a null pointer before
   dereferencing the pointer is simplified to just access the 
   PAListPtr directly.
6. The interfaces for adding attrs to a list and removing them is a
   bit simpler.

Phase #2 will rename some stuff (e.g. PAListPtr) and do other less 
invasive changes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48289 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-12 17:45:29 +00:00
Evan Cheng
709d19fb66 Document an implementation detail about EXTRACT_SUBREG and INSERT_SUBREG sub-register operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48283 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-12 07:52:15 +00:00
Dan Gohman
bfae83139d Use PassManagerBase instead of FunctionPassManager for functions 
that merely add passes. This allows them to be used with either
FunctionPassManager or PassManager, or even with a custom new
kind of pass manager.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48256 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-11 22:29:46 +00:00
Anton Korobeynikov
e846dd89c1 Add helper for ultimate aliasee resoltion 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48255 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-11 22:28:56 +00:00
Devang Patel
1eafa06411 Fix getOperand() for ReturnInst. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48229 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-11 17:35:03 +00:00
Dan Gohman
580b89992f Give PassManager and FunctionPassManager a common base class, with 
add(Pass *) as a pure virtual member function. This will allow all
the various addPassesTo* functions in LLVM to avoid hard-coding what
type of PassManager is used. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48226 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-11 16:41:42 +00:00
Evan Cheng
676dd7c80b When the register allocator runs out of registers, spill a physical register around the def's and use's of the interval being allocated to make it possible for the interval to target a register and spill it right away and restore a register for uses. This likely generates terrible code but is before than aborting. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48218 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-11 07:19:34 +00:00
Dan Gohman
a2e9485e34 Implement more support for fp-to-i128 and i128-to-fp conversions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48189 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-10 23:03:31 +00:00
Evan Cheng
4499e495ea Revert 48125, 48126, and 48130 for now to unbreak some x86-64 tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48167 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-10 19:31:26 +00:00
Dale Johannesen
845ca36544 Use uint64_t not unsigned long long. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48154 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-10 17:05:01 +00:00
Scott Michel
5b8f82e35b Give TargetLowering::getSetCCResultType() a parameter so that ISD::SETCC's 
return ValueType can depend its operands' ValueType.

This is a cosmetic change, no functionality impacted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48145 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-10 15:42:14 +00:00
Christopher Lamb
3feb0170a8 Allow insert_subreg into implicit, target-specific values. 
Change insert/extract subreg instructions to be able to be used in TableGen patterns.
Use the above features to reimplement an x86-64 pseudo instruction as a pattern.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48130 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-10 06:12:08 +00:00
Dale Johannesen
b8cafe3427 Increase ISD::ParamFlags to 64 bits. Increase the ByValSize 
field to 32 bits, thus enabling correct handling of ByVal
structs bigger than 0x1ffff.  Abstract interface a bit.
Fixes gcc.c-torture/execute/pr23135.c and 
gcc.c-torture/execute/pr28982b.c in gcc testsuite (were ICE'ing
on ppc32, quietly producing wrong code on x86-32.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48122 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-10 02:17:22 +00:00
Nick Lewycky
529de8a457 Update the block cloner which fixes bugpoint on code using unwind_to (phew!) 
and also update the cloning interface's major user, the loop optimizations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48088 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 05:24:34 +00:00
Nick Lewycky
c6694228fa Two things. Preserve the unwind_to when splitting a BB. 
Add the ability to remove just one instance of a BB from a phi node. This fixes
the compile error in the tree now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48085 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-09 05:04:48 +00:00
Nick Lewycky
6c36a0f9ee Not all users of a BB are Instructions any more. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48047 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-08 07:48:41 +00:00
Dan Gohman
cdff0d6b04 Remove unused runPass methods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48044 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-08 01:43:56 +00:00
Evan Cheng
27b7db549e Implement x86 support for @llvm.prefetch. It corresponds to prefetcht{0|1|2} and prefetchnta instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48042 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-08 00:58:38 +00:00
Dan Gohman
4e35595368 There is no killUse. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48034 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 22:24:41 +00:00
Devang Patel
c6791d9fca Add new sretpromotion pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48032 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 21:07:34 +00:00
Devang Patel
22a8a734e9 RetVal is not used when there are more then one return operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48022 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 20:08:07 +00:00
Andrew Lenharth
d245a8ae47 add a pass that can extract all kinds of global values, not just functions. Update llvm-extract to use it and optionally extract a global variable if you want it too 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48015 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-07 19:51:57 +00:00
Bill Wendling
ed1fcd8987 When setting the "unused" info, take into account something like this: 
%r3<def> = OR %x3<kill>, %x3

We don't want to mark the %r3 as unused even though it's a sub-register of %x3.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48003 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-06 23:22:43 +00:00
Gabor Greif
29d8aa7877 fix typos 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47994 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-06 10:36:00 +00:00
Nick Lewycky
cd943e4317 Treat BBs that use BBs as proper predecessors and successors in the CFG. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47989 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-06 06:54:53 +00:00
Dale Johannesen
0ea0356dff Clarify that CALLSEQ_START..END may not be nested, 
and add some protection against creating such.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47957 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-05 19:14:03 +00:00
Evan Cheng
6fd599fa69 Add a target lowering hook to control whether it's worthwhile to compress fp constant. 
For x86, if sse2 is available, it's not a good idea since cvtss2sd is slower than a movsd load and it prevents load folding. On x87, it's important to shrink fp constant since fldt is very expensive.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47931 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-05 01:30:59 +00:00
Dan Gohman
d91446de7a Codegen support for i128 SINT_TO_FP. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47928 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-05 01:08:17 +00:00
Evan Cheng
6130f66eaa Refactor code. Remove duplicated functions that basically do the same thing as 
findRegisterUseOperandIdx, findRegisterDefOperandIndx. Fix some naming inconsistencies.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47927 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-05 00:59:57 +00:00
Devang Patel
552ec65ebd Revert SmallVector ctor variants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47908 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-04 21:54:56 +00:00
Devang Patel
52f8ed8368 Add FunctionType ctor variant that takes SmallVector params. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47895 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-04 18:57:05 +00:00
Evan Cheng
39dd768b2a Fix 80 column violations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47877 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-04 03:19:19 +00:00
Evan Cheng
917be6814e Rename isOperand() to isOperandOf() (and other similar methods). It always confuses me. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47872 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-04 00:41:45 +00:00
Bill Wendling
7194aaf738 This is the initial check-in for adding register scavenging to PPC. (Currently, 
PPC-64 doesn't work.) This also lowers the spilling of the CR registers so that
it uses a register other than the default R0 register (the scavenger scrounges
for one). A significant part of this patch fixes how kill information is
handled.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47863 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-03 22:19:16 +00:00
Devang Patel
41e2397b72 s/isReturnStruct()/hasStructRetAttr()/g 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47857 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-03 21:46:28 +00:00
Chris Lattner
1a091447f4 Stub out a Path::GetMainExecutable call to find the path to the 
main executable of a program.  This needs to be implemented on windows.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47835 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-03 02:55:43 +00:00
Chris Lattner
4fa01441d5 make operand accessors const-correct 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47814 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-02 05:32:05 +00:00
Chris Lattner
8728f1915f Add a new ShuffleVectorInst::getMaskValue method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47813 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-02 05:28:33 +00:00
Nick Lewycky
fc82fabe00 Add an unwind_to field to basic blocks, making them Users instead of Values. 
This is the first checkin for PR1269, the new EH infrastructure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47802 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-02 02:48:09 +00:00
Dale Johannesen
3c8b59c546 Add MVT::is128BitVector and is64BitVector. Shrink 
unaligned load/store code using them.  Per review
of unaligned load/store vector patch.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47782 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-03-01 03:40:57 +00:00
Devang Patel
ca891ecf91 Add pass to promote sret. 
This pass transforms 

  %struct._Point = type { i32, i32, i32, i32, i32, i32 }
  define internal void @foo(%struct._Point* sret  %agg.result)

into

  %struct._Point = type { i32, i32, i32, i32, i32, i32 }
  define internal %struct._Point @foo()

This pass updates foo() clients appropriately to use
getresult instruction to extract return values.

This pass is not yet ready for prime time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47776 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-29 23:34:08 +00:00
Anton Korobeynikov
8213f9cf94 Use enumeration for preffered EH dwarf encoding reason 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47770 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-29 22:09:08 +00:00
Evan Cheng
05548eb174 Don't fill eh frames even though these are text sections. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47765 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-29 19:36:59 +00:00
Dan Gohman
cf609575ef Add support to APInt for shift and rotate operations with APInt 
instead of uint32_t for the shift/rotate count operand type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47741 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-29 01:40:47 +00:00
Dan Gohman
93c276e1c9 Add a method to APFloat to convert directly from APInt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47738 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-29 01:26:11 +00:00
Dale Johannesen
28d08fdb9f Interface of getByValTypeAlignment differed between 
generic & x86 versions; change generic to follow x86
and improve comments.  Add PPC version (not right
for non-Darwin.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47734 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-28 22:31:51 +00:00
Duncan Sands
59c2e868ff Document that the shuffle mask may contain undef 
values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47719 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-28 17:12:11 +00:00
Evan Cheng
fb8075d03f Add a quick and dirty "loop aligner pass". x86 uses it to align its loops to 16-byte boundaries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47703 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-28 00:43:03 +00:00
Devang Patel
26c22cfbcd Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47700 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 23:33:51 +00:00
Anton Korobeynikov
cee750fb1e Preparation step for some cleanup/generalization in EH information emission: 
provide TAI hook for selection of EH data emission format. Currently unused.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47699 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 23:33:50 +00:00
Anton Korobeynikov
351b0d4e4e Assert on invalid PHINode::addIncoming() arguments. Patch by Erick Tryzelaar! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47697 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 22:37:28 +00:00
Evan Cheng
21b3f31f8f Fix a bug in dead spill slot elimination. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47687 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 19:57:11 +00:00
Dan Gohman
e8ae2fe2a8 Add -analyze support to postdomtree. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47680 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 18:38:29 +00:00
Duncan Sands
4f069e6db1 LegalizeTypes support for INSERT_VECTOR_ELT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47669 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 10:18:23 +00:00
Evan Cheng
be680dcea6 Don't track max alignment during stack object allocations since they can be deleted later. Let PEI compute it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47668 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 10:04:56 +00:00
Bill Wendling
6ef781f3ce Final de-tabification. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47663 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 06:33:05 +00:00
Chris Lattner
e1b332a304 Add path separator support, patch by Sam Bishop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47662 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 06:17:10 +00:00
Evan Cheng
d36531249a Spiller now remove unused spill slots. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47657 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 03:04:06 +00:00
Dan Gohman
b3564aa836 Convert the last remaining users of the non-APInt form of 
ComputeMaskedBits to use the APInt form, and remove the
non-APInt form.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47654 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 01:23:58 +00:00
Devang Patel
e6be34a53e Add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47653 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 01:20:54 +00:00
Dan Gohman
7b8d4a9eef Convert SimplifyDemandedMask and ShrinkDemandedConstant to use APInt. 
Change several cases in SimplifyDemandedMask that don't ever do any
simplifying to reuse the logic in ComputeMaskedBits instead of
duplicating it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47648 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-27 00:25:32 +00:00
Devang Patel
53284d39cd Remove unncessary ReturnInst constructors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47633 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 22:12:58 +00:00
Bill Wendling
e6d088acc9 Rename PrintableName to Name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47629 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 21:47:57 +00:00
Anton Korobeynikov
95e78348f0 Update per review. Patch by Mikhail Glushenkov! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47628 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 21:44:24 +00:00
Bill Wendling
74ab84c31e Change "Name" to "AsmName" in the target register info. Gee, a refactoring tool 
would have been a Godsend here!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47625 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 21:11:01 +00:00
Devang Patel
f4511cd8fb Use SmallVector while constructing ReturnInst. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47619 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 19:38:17 +00:00
Devang Patel
fea9830468 Avoid const_casts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47616 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 19:15:26 +00:00
Devang Patel
f8989657a7 Remove unnecessary getOperand/setOperand overriders. 
Simplify getReturnValue()


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47614 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 19:08:13 +00:00
Devang Patel
814ebd77b0 Unify to ReturnInst::init() member functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47611 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 18:49:29 +00:00
Devang Patel
64d4e61259 Optimize most common case by using single RetVal in ReturnInst. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47607 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 17:56:20 +00:00
Bill Wendling
e85fe660e4 Detabify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47597 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 10:49:39 +00:00
Evan Cheng
5c80760fdf Refactor inline asm constraint matching code out of SDIsel into TargetLowering. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47587 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 02:33:44 +00:00
Devang Patel
aaeb60ae40 Pass const vectors by reference. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47577 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-26 00:12:13 +00:00
Eli Friedman
faa999565f Add missing include (for ptrdiff_t). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47576 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 23:35:32 +00:00
Dan Gohman
437d452adb Factor the assert for indexed loads/stores out of LoadSDNode 
and StoreSDNode into LSBaseSDNode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47570 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 22:16:29 +00:00
Chris Lattner
f8d8b2b53a add an assertion to catch a null PATypeHolder, patch by Erick Tryzelaar 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47563 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 21:28:46 +00:00
Dan Gohman
2e68b6f52d Convert MaskedValueIsZero and all its users to use APInt. Also add 
a SignBitIsZero function to simplify a common use case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47561 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 21:11:39 +00:00
Chris Lattner
63602b8a69 add LSBaseSDNode::getOffset at Dan's request. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47558 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 19:31:21 +00:00
Chris Lattner
6110224fa6 prune #includes, fit in 80 cols. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47556 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 19:21:38 +00:00
Chris Lattner
5f27ba1197 make this self contained. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47555 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 19:20:57 +00:00
Dan Gohman
4fc3d5dac2 Add a new method to SDNode/SDOperand named getValueSizeInBits 
that combines getValueType and MVT::getSizeInBits, since this
occurrs frequently.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47552 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 19:08:02 +00:00
Evan Cheng
79a0c1e46c Correctly determine whether a argument load can be folded into its uses. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47545 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-25 08:50:41 +00:00
Bill Wendling
181eb737b2 Some platforms use the same name for 32-bit and 64-bit registers (like 
%r3 on PPC) in their ASM files. However, it's hard for humans to read
during debugging. Adding a new field to the register data that lets you
specify a different name to be printed than the one that goes into the
ASM file -- %x3 instead of %r3, for instance.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47534 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-24 00:56:13 +00:00
Scott Michel
a59d469e9b Merge current work back to tree to minimize diffs and drift. Major highlights 
for CellSPU modifications:

- SPUInstrInfo.td refactoring: "multiclass" really is _your_ friend.
- Other improvements based on refactoring effort in SPUISelLowering.cpp,
  esp. in SPUISelLowering::PerformDAGCombine(), where zero amount shifts and
  rotates are now eliminiated, other scalar-to-vector-to-scalar silliness
  is also eliminated.
- 64-bit operations are being implemented, _muldi3.c gcc runtime now
  compiles and generates the right code. More work still needs to be done.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47532 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-23 18:41:37 +00:00
Devang Patel
4d4a5e0bd2 Remove unnecessary "inline" keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47516 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-23 01:11:02 +00:00
Devang Patel
d7313c5608 Use dyn_cast instead of isa + cast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47511 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-23 00:47:00 +00:00
Evan Cheng
0cc83b6e85 Forgot this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47510 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-23 00:46:11 +00:00
Devang Patel
57ef4f46c1 To support multiple return values, now ret instruction supports multiple operands instead of one aggregate operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47508 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-23 00:35:18 +00:00
Dale Johannesen
22c3979fca Split ParameterAttributes.h, putting the complicated 
stuff into ParamAttrsList.h.  Per feedback from
ParamAttrs changes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47504 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-22 22:17:59 +00:00
Evan Cheng
8ec57d7005 Remove an invalid assertion now that there are implicit virtual register operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47493 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-22 19:25:04 +00:00
Devang Patel
5f2e4681ce Add StripDeadPrototypes pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47488 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-22 18:39:29 +00:00
Dale Johannesen
08e78b18b8 Pass alignment on ByVal parameters, from FE, all 
the way through.  It is now used for codegen.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47484 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-22 17:49:45 +00:00
Anton Korobeynikov
567a273370 Add smart refcounting pointer class to ADT back (known before as IntrusiveSPtr.h). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47482 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-22 17:26:05 +00:00
Anton Korobeynikov
602d1c51e0 Unbreak build for VC2008. Patch by Argiris Kirtzidis! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47480 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-22 10:11:21 +00:00
Evan Cheng
d70dbb5d62 Enable re-materialization of instructions which have virtual register operands if 
the definition of the operand also reaches its uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47475 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-22 09:24:50 +00:00
Devang Patel
197be3de7f Read and write getresult. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47471 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-22 02:49:49 +00:00
Chris Lattner
59a8cdd36d minor cleanups to LSBaseSDNode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47469 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-22 01:54:35 +00:00
Andrew Lenharth
c1c7bd610a Better names as per Evan's request 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47435 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-21 16:11:38 +00:00
Andrew Lenharth
ab0b949e0e Atomic op support. If any gcc test uses __sync builtins, it might start failing on archs that haven't implemented them yet 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47430 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-21 06:45:13 +00:00
Anton Korobeynikov
e18bc08fbc Add convenient helper to get suffix of the file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47397 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 19:41:22 +00:00
Dan Gohman
c9525263f6 Remove inline keywords from in-class function definitions, for 
consistency.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47393 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 19:29:58 +00:00
Devang Patel
474869f2b2 getresult type is the type of indexed aggregate element 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47392 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 19:26:55 +00:00
Devang Patel
23755d8755 Specify GetResultInst index as an unsigned. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47390 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 19:10:47 +00:00
Devang Patel
2d2ae34d7e Fix typo. Add const version of getAggregateValue() accessor member function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47386 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 18:36:16 +00:00
Dan Gohman
b5660dc822 Add explicit keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47382 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 16:44:09 +00:00
Dan Gohman
bd99917892 Add an intersects method to APInt, to capture a common idiom. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47379 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 16:08:11 +00:00
Anton Korobeynikov
d57160d097 Add 'sink' cmdline option. Patch by Mikhail Glushenkov! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47377 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 12:38:07 +00:00
Anton Korobeynikov
4aefd6b7d4 Fix newly-introduced 4.3 warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47375 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 12:07:57 +00:00
Anton Korobeynikov
a27694d7aa And final pack of warnings silencing 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47372 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 11:27:04 +00:00
Anton Korobeynikov
4c71dfe356 Update gcc 4.3 warnings fix patch with recent head changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47368 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 11:10:28 +00:00
Anton Korobeynikov
ae9f3a3b7c Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47367 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 11:08:44 +00:00
Bill Wendling
5ec3ab7f67 Fixed typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47365 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 09:14:09 +00:00
Bill Wendling
420cdebbcb More constification of things. More comments added. No functionality 
changes. (Sorry for any formatting changes that creeped in.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47362 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 07:36:31 +00:00
Nick Lewycky
3e63076980 Add 'umax' similar to 'smax' SCEV. Closes PR2003. 
Parse reversed smax and umax as smin and umin and express them with negative
or binary-not SCEVs (which are really just subtract under the hood).

Parse 'xor %x, -1' as (-1 - %x).

Remove dead code (ConstantInt::get always returns a ConstantInt).

Don't use getIntegerSCEV(-1, Ty). The first value is an int, then it gets
passed into a uint64_t. Instead, create the -1 directly from
ConstantInt::getAllOnesValue().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47360 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 06:48:22 +00:00
Dan Gohman
9d4879f364 Add some comments to Intrinsic::getDeclaration to clarify how to 
get declarations for overloaded intrinsics.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47353 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 01:07:51 +00:00
Dale Johannesen
6167c3fcda Add Alignment field to ParameterAttributes and 
treat more or less rationally in interface
functions, subject to change.  No functional change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47352 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 23:51:49 +00:00
Devang Patel
40a04216da Add GetResultInst. First step for multiple return value support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47348 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 22:15:16 +00:00
Dale Johannesen
0d51e7ec0d Expand ParameterAttributes to 32 bits (in preparation 
for adding alignment info, not there yet).  Clean up
interfaces to reference ParameterAttributes consistently.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47342 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 21:38:47 +00:00
Chris Lattner
75542bd56b remove the LowerSelect pass. The last client was the old Sparc backend, which is long dead by now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47323 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 07:49:17 +00:00
Chris Lattner
15f166c7b6 remove the lower packed pass. It can never work and even the parts that 
could work don't work fully.  This fixes PR1705.  Oh yeah, we don't have
packed types anymore either ;-)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47322 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 07:39:17 +00:00
Evan Cheng
efec751a1b - When DAG combiner is folding a bit convert into a BUILD_VECTOR, it should check if it's essentially a SCALAR_TO_VECTOR. Avoid turning (v8i16) <10, u, u, u> to <10, 0, u, u, u, u, u, u>. Instead, simply convert it to a SCALAR_TO_VECTOR of the proper type. 
- X86 now normalize SCALAR_TO_VECTOR to (BIT_CONVERT (v4i32 SCALAR_TO_VECTOR)). Get rid of X86ISD::S2VEC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47290 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 23:04:32 +00:00
Duncan Sands
548448a317 Simplify caller updating using a CallSite, as 
requested by Chris.  While there, do the same
for an existing function committed by someone
called "lattner" :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47273 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 17:32:13 +00:00
Roman Levenstein
8dd25288f9 New helper function getMBBFromIndex() that given an index in any instruction of an MBB returns a pointer the MBB. Reviewed by Evan. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47267 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 09:35:30 +00:00
Owen Anderson
823391ae6e Add support for setting parameters to CallSite. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47249 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 00:10:55 +00:00
Owen Anderson
7d54254c9c Add a predicate to Argument to check for the StructRet attribute. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47248 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-17 23:22:28 +00:00
Andrew Lenharth
22c5c1b2df llvm.memory.barrier, and impl for x86 and alpha 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47204 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-16 01:24:58 +00:00
Dan Gohman
42a77880a8 Rename CountMemOperands to ComputeMemOperandsEnd to reflect what 
it actually does. Simplify CountOperands a little by reusing
ComputeMemOperandsEnd. And reword some comments for both.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47198 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-16 00:36:48 +00:00
Scott Michel
0123b7dcfa Make tblgen a little smarter about constants smaller than i32. Currently, 
tblgen will complain if a sign-extended constant does not fit into a
data type smaller than i32, e.g., i16. This causes a problem when certain
hex constants are used, such as 0xff for byte masks or immediate xor
values.

tblgen will try the sign-extended value first and, if the sign extended
value would overflow, it tries to see if the unsigned value will fit.
Consequently, a software developer can now safely incant:

	(XORHIr16 R16C:$rA, 0xffff)

which is somewhat clearer and more informative than incanting:

	(XORHIr16 R16C:$rA, (i16 -1))

even if the two are bitwise equivalent.

Tblgen also outputs the 64-bit unsigned constant in the generated ISel code
when getTargetConstant() is invoked.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47188 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-15 23:05:48 +00:00
Evan Cheng
c8d044e4f7 - Removing the infamous r2rMap_ and rep() method. Now the coalescer will update 
register defs and uses after each successful coalescing.
- Also removed a number of hacks and fixed some subtle kill information bugs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47167 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-15 18:24:29 +00:00
Evan Cheng
f20db15954 Added CommuteChangesDestination(). This returns true if commuting the specified 
machine instr will change its definition register.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47166 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-15 18:21:33 +00:00
Dan Gohman
9ae39b5cb3 Change MemOperand's size and offset to be 64-bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47151 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-15 01:29:57 +00:00
Duncan Sands
00fee65fd2 In TargetLowering::LowerCallTo, don't assert that 
the return value is zero-extended if it isn't
sign-extended.  It may also be any-extended.
Also, if a floating point value was returned
in a larger floating point type, pass 1 as the
second operand to FP_ROUND, which tells it
that all the precision is in the original type.
I think this is right but I could be wrong.
Finally, when doing libcalls, set isZExt on
a parameter if it is "unsigned".  Currently
isSExt is set when signed, and nothing is
set otherwise.  This should be right for all
calls to standard library routines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47122 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 17:28:50 +00:00
Nate Begeman
e179584f9b Change how FP immediates are handled. 
1) ConstantFP is now expand by default
2) ConstantFP is not turned into TargetConstantFP during Legalize
   if it is legal.

This allows ConstantFP to be handled like Constant, allowing for 
targets that can encode FP immediates as MachineOperands.

As a bonus, fix up Itanium FP constants, which now correctly match,
and match more constants!  Hooray.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47121 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 08:57:00 +00:00
Nate Begeman
e8b7ccf0c9 Support a new type of MachineOperand, MO_FPImmediate, used for holding 
FP Immediates, crazily enough


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47117 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 07:39:30 +00:00
Nate Begeman
f504eefb6e Nuke dead comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47114 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 07:23:11 +00:00
Dan Gohman
cd2ad1df5d Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47097 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 22:32:12 +00:00
Dan Gohman
977a76fbb6 Simplify some logic in ComputeMaskedBits. And change ComputeMaskedBits 
to pass the mask APInt by value, not by reference. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47096 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 22:28:48 +00:00
Dan Gohman
7649127ec1 Rename APInt's isPositive to isNonNegative, to reflect what it 
actually does.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47090 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 22:09:18 +00:00
Dan Gohman
42dd77f207 Add countTrailingOnes member functions to APInt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47086 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 21:11:05 +00:00