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1392 Commits

Author SHA1 Message Date
Dan Gohman
51eaa86758 Rename MVT::getVectorBaseType to MVT::getVectorElementType. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37579 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-14 22:58:02 +00:00
Dan Gohman
6595635175 Introduce new SelectionDAG node opcodes VEXTRACT_SUBVECTOR and 
VCONCAT_VECTORS. Use these for CopyToReg and CopyFromReg legalizing in
the case that the full register is to be split into subvectors instead
of scalars. This replaces uses of VBIT_CONVERT to present values as
vector-of-vector types in order to make whole subvectors accessible via
BUILD_VECTOR and EXTRACT_VECTOR_ELT.

This is in preparation for adding extended ValueType values, where
having vector-of-vector types is undesirable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37569 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-13 15:12:02 +00:00
David Greene
2513330de8 Factor live variable analysis so it does not do register coalescing 
simultaneously.  Move that pass to SimpleRegisterCoalescing.

This makes it easier to implement alternative register allocation and
coalescing strategies while maintaining reuse of the existing live
interval analysis.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37520 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-08 17:18:56 +00:00
Evan Cheng
0370fad74b Move ReplaceUsesOfBlockWith() out of BranchFolding into a MachineBasicBlock general facility. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37408 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-04 06:44:01 +00:00
Duncan Sands
09085fe63d The semantics of invoke require that we always jump to the unwind block 
(landing pad) when an exception unwinds through the call.  This doesn't
quite match the way the dwarf unwinder works: by default it only jumps to
the landing pad if the catch or filter specification matches, and otherwise
it keeps on unwinding.  There are two ways of specifying to the unwinder
that it should "always" (more on why there are quotes here later) jump to
the landing pad: follow the specification by a 0 typeid, or follow it by
the typeid for the NULL typeinfo.  GCC does the first, and this patch makes
LLVM do the same as gcc.  However there is a problem: the unwinder performs
optimizations based on C++ semantics (it only expects destructors to be
run if the 0 typeid fires - known as "cleanups"), meaning it assumes that no
exceptions will be raised and that the raised exception will be reraised
at the end of the cleanup code.  So if someone writes their own LLVM code
using the exception intrinsics they will get a nasty surprise if they don't
follow these rules.  The other possibility of using the typeid corresponding
to NULL (catch-all) causes the unwinder to make no assumptions, so this is
probably what we should use in the long-run.  However since we are still
having trouble getting exception handling working properly, for the moment
it seems best to closely imitate GCC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37399 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-02 17:16:06 +00:00
Duncan Sands
73ef58ab92 Integrate exception filter support and exception catch support. This 
simplifies the code in DwarfWriter, allows for multiple filters and
makes it trivial to specify filters accompanied by cleanups or catch-all
specifications (see next patch).  What a deal!  Patch blessed by Anton.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37398 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-06-02 16:53:42 +00:00
Chris Lattner
3a4205367d Fix the asmprinter so that a globalvalue can specify an explicit alignment 
smaller than the preferred alignment, but so that the target can actually
specify a minimum alignment if needed.  This fixes some objc protocol
failures Devang tracked down.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37373 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-31 18:57:45 +00:00
Evan Cheng
f277ee4be7 Add missing const qualifiers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37341 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-29 18:35:22 +00:00
Dan Gohman
fa73ea2d9f Minor comment cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37321 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-24 14:36:04 +00:00
Anton Korobeynikov
070280e97f Mark all calls as "could throw", when exceptions are enabled. Emit necessary LP info too. This fixes PR1439 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37311 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-23 11:08:31 +00:00
Dale Johannesen
81da02b553 Make tail merging the default, except on powerPC. There was no prior art 
for a target-dependent default with a command-line override; this way
should be generally usable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37285 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-22 17:14:46 +00:00
Evan Cheng
4f098788d3 Move isSuccessor() offline, change it to use std::find. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37190 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-17 23:58:53 +00:00
Evan Cheng
1bccb49082 Rename M_PREDICATED to M_PREDICABLE; Move TargetInstrInfo::isPredicatable() to MachineInstr::isPredicable(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37115 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-16 20:43:42 +00:00
Evan Cheng
4e654852f1 Initial commit of (very basic) if converter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37092 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-16 02:00:57 +00:00
Evan Cheng
19e3f31f6a Added getNumExplicitOperands and findFirstPredOperand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37064 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-15 01:26:09 +00:00
Dan Gohman
289f61709f Correct a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37058 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-15 00:20:13 +00:00
Evan Cheng
2f6cb2b14c Fix for PR1406: 
v1 =
r2 = move v1
   = op r2<kill>
...
r2 = move v1
   = op r2<kill>

Clear the first r2 kill if v1 and r2 are joined.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37050 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-14 21:10:05 +00:00
Anton Korobeynikov
8c7c17354c Emit multiple common EH frames for multiple (including blank) personality 
functions. This partly fixes PR1414: now we're restricted only to one
personality function per eh frame, not per module. Further work on
"multiple personalities" topic needs representative example.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37018 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-13 15:42:26 +00:00
Anton Korobeynikov
0ff3ca4f92 More DWARF-related things cleanup: 
1. Fix PR1380
2. Apply Duncan's patch from PR1410
3. Insert workaround for "one personality function per module" as noted in PR1414
4. Emit correct debug frames for x86/linux. This partly fixes DebugInfo/2006-11-06-StackTrace.cpp: stack trace is
shown correctly, but arguments for function on top of stack are displayed incorrectly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37015 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-12 22:36:25 +00:00
Anton Korobeynikov
eeb37e0b80 Allow multiple invokes per landing pad. This (probably) fixes PR1410. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36977 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-10 22:34:59 +00:00
Evan Cheng
56184904cd Eliminate MarkVirtRegAliveInBlock recursion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36943 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-08 19:00:00 +00:00
Evan Cheng
6603d7ec67 Add MachineBasicBlock preds / succs reverse iterators. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36942 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-08 18:55:03 +00:00
Nick Lewycky
ecd94c804a Fix typo in comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36873 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-06 13:37:16 +00:00
Devang Patel
1997473cf7 Drop 'const' 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36662 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-03 01:11:54 +00:00
Devang Patel
3e15bf33e0 Use 'static const char' instead of 'static const int'. 
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36652 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-02 21:39:20 +00:00
Devang Patel
794fd75c67 Do not use typeinfo to identify pass in pass manager. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36632 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-01 21:15:47 +00:00
Evan Cheng
a09f0d4ab7 Pass call frame setup SP adjustment along to eliminateFrameIndex(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36624 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-01 08:59:18 +00:00
Nate Begeman
7bf1c272ab llvm bug #1350, parts 1, 2, and 3. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36618 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-05-01 05:57:02 +00:00
Christopher Lamb
5443779d5a Implement review feedback. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36603 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-30 23:54:10 +00:00
Christopher Lamb
99eaef9b06 Header file for ELF relocations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36597 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-30 20:41:08 +00:00
Chris Lattner
bb58b9c3c0 add a way to make this less brittle 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36528 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-28 05:38:52 +00:00
Jeff Cohen
b35417c607 Fix prolific source of 'possible loss of data' warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36507 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-27 14:43:05 +00:00
Evan Cheng
faa510726f Rename findRegisterUseOperand to findRegisterUseOperandIdx to avoid confusion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36483 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-26 19:00:32 +00:00
Evan Cheng
05350288a6 Be careful when to add implicit kill / dead operands. Don't add them during / post reg-allocation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36458 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-26 01:40:09 +00:00
Evan Cheng
505e5510a2 Change UsedPhysRegs from array bool to BitVector to save some space. Setting / getting its states now go through MachineFunction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36451 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-25 22:10:09 +00:00
Evan Cheng
e96f50142e Data structure change to improve compile time (especially in debug mode). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36447 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-25 19:34:00 +00:00
Anton Korobeynikov
8b0a8c84da Implement aliases. This fixes PR1017 and it's dependent bugs. CFE part 
will follow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36435 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-25 14:27:10 +00:00
Evan Cheng
24a3cc4c83 Fix for PR1306. 
- A register def / use now implicitly affects sub-register liveness but does
not affect liveness information of super-registers.
- Def of a larger register (if followed by a use later) is treated as
read/mod/write of a smaller register.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36434 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-25 07:30:23 +00:00
Evan Cheng
cdee1c4272 Minor speed tweak. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36432 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-25 07:24:13 +00:00
Chris Lattner
e47b1446d8 support for >4G frames 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36424 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-25 04:29:06 +00:00
Chris Lattner
a401b1e1c5 support > 4G stack objects 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36422 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-25 04:20:54 +00:00
Chris Lattner
be7d83ec0e allow 64-bit stack objects 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36419 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-25 04:07:31 +00:00
Christopher Lamb
df1349546f Fix bug in isFloatingPoint() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36381 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-23 22:50:40 +00:00
Christopher Lamb
95c218a83e PR400 phase 2. Propagate attributed load/store information through DAGs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36356 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-22 23:15:30 +00:00
Lauro Ramos Venancio
2c5c111b6c X86 TLS: Implement review feedback. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36318 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-21 20:56:26 +00:00
Reid Spencer
c67bdc288a Revert Christopher Lamb's load/store alignment changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36309 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-21 18:36:27 +00:00
Jeff Cohen
8f192e0ee0 Make enum-valued bitfield large enough to avoid interpretation as negative values in VC++. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36304 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-21 16:29:37 +00:00
Christopher Lamb
2330e4d4c4 add support for alignment attributes on load/store instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36301 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-21 08:16:25 +00:00
Lauro Ramos Venancio
b3a0417cad Implement "general dynamic", "initial exec" and "local exec" TLS models for 
X86 32 bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36283 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-20 21:38:10 +00:00
Evan Cheng
f44c72817e VarInfo::UsedBlocks is no longer used. Remove. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36250 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-18 05:04:38 +00:00
Evan Cheng
faf05bbaea Don't populate TryAgainList when coalescing only physical registers with virtual registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36240 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-18 02:30:19 +00:00
Evan Cheng
20b0abc24f Copy coalescing change to prevent a physical register from being pin to a 
long live interval that has low usage density.
1. Change order of coalescing to join physical registers with virtual
   registers first before virtual register intervals become too long.
2. Check size and usage density to determine if it's worthwhile to join.
3. If joining is aborted, assign virtual register live interval allocation
   preference field to the physical register.
4. Register allocator should try to allocate to the preferred register
   first (if available) to create identify moves that can be eliminated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36218 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 20:32:26 +00:00
Evan Cheng
e52eef8e9a Add a register allocation preference field; add a method to compute size of a live interval. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36216 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 20:25:11 +00:00
Evan Cheng
38b7ca6651 Keep track of number of uses within the function per virtual register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36214 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 20:22:11 +00:00
Anton Korobeynikov
57fc00d5cf Implemented correct stack probing on mingw/cygwin for dynamic alloca's. 
Also, fixed static case in presence of eax livin. This fixes PR331

PS: Why don't we still have push/pop instructions? :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36195 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-17 09:20:00 +00:00
Anton Korobeynikov
4198c58c71 Next stage into switch lowering refactoring 
1. Fix some bugs in the jump table lowering threshold
2. Implement much better metric for optimal pivot selection
3. Tune thresholds for different lowering methods
4. Implement shift-and trick for lowering small (<machine word
length) cases with few destinations. Good testcase will follow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35816 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-09 12:31:58 +00:00
Anton Korobeynikov
5502bf67cd Properly emit range comparisons for switch cases, where neighbour cases 
go to the same destination. Now we're producing really good code for
switch-lower-feature.ll testcase


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35672 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-04 21:14:49 +00:00
Evan Cheng
a96c5b3040 Add isFixedObjectIndex. It returns true if the stack slot index is for a fixed stack object. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35659 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-04 07:38:25 +00:00
Evan Cheng
bcfd4665b5 Ugh. Copy coalescer does not update register numbers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35600 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-02 18:49:18 +00:00
Reid Spencer
ded5ed873f For PR1297: 
Intrinsic functions might need to be generated (if they are overloaded) so
returning a const char* is no longer possible. Change getOperationName to
return a std::string instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35543 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-01 07:28:37 +00:00
Reid Spencer
86a5a368f8 For PR1297: 
Add an "iAny" ValueType as a place holder for an integer type of any
bit width. This is used for intrinsics overloading on integer type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35538 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-04-01 07:17:45 +00:00
Chris Lattner
2df6dc579c add a method to turn a type into a VT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35526 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-31 04:03:02 +00:00
Evan Cheng
32eb1f1ca4 Change findRegisterUseOperand() to return operand index instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35363 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-26 22:37:45 +00:00
Dale Johannesen
c6b9ef80a8 Fix reversed logic in getRegsUsed. Rename RegStates to RegsAvailable to 
hopefully forestall similar errors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35362 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-26 22:23:54 +00:00
Anton Korobeynikov
3a84b9baf6 First step of switch lowering refactoring: perform worklist-driven 
strategy, emit JT's where possible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35338 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-25 15:07:15 +00:00
Chris Lattner
0d3988f408 add a valuetype for v1i64, which is needed by mmx. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35298 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-24 17:36:26 +00:00
Dan Gohman
423c2260f9 Add the 'explicit' keyword to several constructors that accept one 
argument that don't appear intended as implicit-conversion operators.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35280 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-23 18:44:11 +00:00
Dale Johannesen
69cb9b78f1 maintain LiveIn when splitting blocks (register scavenging needs it) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35226 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 21:35:06 +00:00
Evan Cheng
2638e1a6b9 First cut trivial re-materialization support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35208 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-20 08:13:50 +00:00
Evan Cheng
7e79e396a4 Fix comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35139 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-18 03:26:04 +00:00
Evan Cheng
c6a2410d58 Track the BB's where each virtual register is used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35135 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-17 09:29:54 +00:00
Anton Korobeynikov
d0b82b301d Refactoring of formal parameter flags. Enable properly use of 
zext/sext/aext stuff.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35008 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-07 16:25:09 +00:00
Evan Cheng
02c50e4891 Add a utility function to test whether a load is unindexed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35004 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-07 08:04:41 +00:00
Evan Cheng
f262b35559 Add skipTo to set internal iterator. Useful when pointed to instruction is deleted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34997 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-07 02:36:16 +00:00
Evan Cheng
b74a3e6fda Register scavenger is now capable of scavenging. It spills a register whose use of furthest away to make it available. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34964 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-06 10:01:25 +00:00
Anton Korobeynikov
0db79d86de Enumerate SDISel formal parameter attributes. Make use of new 
enumeration.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34960 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-06 06:10:33 +00:00
Chris Lattner
55e34eb317 add a new node 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34912 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-04 20:40:06 +00:00
Jim Laskey
59e8434a85 Collect eh filter info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34804 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-01 20:25:32 +00:00
Evan Cheng
5196b3680c Add a version of FindUnusedReg that restrict search to a specific set of registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34784 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-01 08:56:24 +00:00
Evan Cheng
28654b6205 Clean up interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34769 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-01 02:18:06 +00:00
Evan Cheng
88d1f587d2 Track all joined registers and eliminate unneeded kills after all joining are done. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34767 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-01 02:03:03 +00:00
Evan Cheng
3193a2d6b0 MachineBasicBlock fields should not be public. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34766 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-03-01 02:00:40 +00:00
Chris Lattner
66baf26fe0 add methods for analysis of call results and return nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34738 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-28 07:09:40 +00:00
Chris Lattner
fb39f99fa4 add methods to analyze calls and formals. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34736 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-28 06:56:37 +00:00
Evan Cheng
898218cc5e Some more code clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34700 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-27 22:58:43 +00:00
Evan Cheng
8cab162e03 Oops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34698 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-27 22:10:52 +00:00
Evan Cheng
bb6fb3357d RegScavenger interface change to make it more flexible. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34690 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-27 21:09:48 +00:00
Evan Cheng
659ba970e3 Pass IsImp, IsKill, and IsDead to ChangeToRegister. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34688 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-27 21:06:57 +00:00
Chris Lattner
13513b7a50 Minor refactoring of CC Lowering interfaces 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34656 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-27 05:13:54 +00:00
Chris Lattner
362e98a5f5 move CC Lowering stuff to its own public interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34655 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-27 04:43:02 +00:00
Evan Cheng
ed570dedad forward() should not increment internal iterator. Its client may insert instruction between now and next forward() call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34649 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-27 01:58:48 +00:00
Evan Cheng
edeffb37dc Joining an interval with a dead copy instruction. Shorten the live range to the last use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34645 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-26 21:37:37 +00:00
Evan Cheng
76d7e76c15 Use findRegisterUseOperand to find a kill of particular register. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34512 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-23 01:04:26 +00:00
Evan Cheng
96fa612373 Initial check in of register scavenger. Its only current functionality is tracking live registers per MBB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34511 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-23 01:01:19 +00:00
Evan Cheng
7d35c0e2b9 Copy and paste silliness. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34507 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 23:52:23 +00:00
Evan Cheng
30cac02a92 Remove unnecessary isKill properties if a live range has been lengthened due to coalescing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34503 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 23:03:39 +00:00
Jim Laskey
f033833109 Typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34498 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 16:40:10 +00:00
Jim Laskey
033c9715d9 Remove isAccessable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34497 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-22 16:39:03 +00:00
Jim Laskey
bda9b0ec7b Add support for changes in DwarfWriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34478 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:47:38 +00:00
Jim Laskey
9b25b8ca24 Allow for live in registers for eh landing pads. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34475 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-21 22:41:17 +00:00