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2b50f038b1
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2690 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen
2b50f038b1 Move PHIElimination::isLiveOut method to LiveVariables. 
We want LiveVariables clients to use methods rather than accessing the
getVarInfo data structure directly. That way it will be possible to change the
LiveVariables representation.

llvm-svn: 90240
 2009-12-01 17:13:31 +00:00
Evan Cheng
fcbc30f36e Fix PR5614: parts of a physical register def may be killed the rest. 
llvm-svn: 90180
 2009-12-01 00:44:45 +00:00
Mon P Wang
27bce4e285 Added support to allow clients to custom widen. For X86, custom widen vectors for 
divide/remainder since these operations can trap by unroll them and adding undefs
for the resulting vector.

llvm-svn: 90108
 2009-11-30 02:42:02 +00:00
Bob Wilson
c029183683 Rename new TailDuplicationPass to avoid name conflict with the old one. 
llvm-svn: 89968
 2009-11-26 21:38:41 +00:00
Bob Wilson
de012efdba Split tail duplication into a separate pass. This is needed to avoid 
running tail duplication when doing branch folding for if-conversion, and
we also want to be able to run tail duplication earlier to fix some
reg alloc problems.  Move the CanFallThrough function from BranchFolding
to MachineBasicBlock so that it can be shared by TailDuplication.

llvm-svn: 89904
 2009-11-26 00:32:21 +00:00
Devang Patel
f01ac414c5 Use StringRef instead of std::string in DIEString. 
llvm-svn: 89793
 2009-11-24 19:42:17 +00:00
Devang Patel
9cd7c1ab8e Remove DebugLabelFolder pass. It is not used by dwarf writer anymore. 
llvm-svn: 89790
 2009-11-24 19:37:07 +00:00
Dan Gohman
b5ec39e2dc Remove ISD::DEBUG_LOC and ISD::DBG_LABEL, which are no longer used. 
Note that "hasDotLocAndDotFile"-style debug info was already broken;
people wanting this functionality should implement it in the
AsmPrinter/DwarfWriter code.

llvm-svn: 89711
 2009-11-23 23:20:51 +00:00
Jeffrey Yasskin
ed6d1ce9ae Allow more than one stub to be being generated at the same time. 
It's probably better in the long run to replace the
indirect-GlobalVariable system. That'll be done after a subsequent
patch.

llvm-svn: 89708
 2009-11-23 22:49:00 +00:00
Dan Gohman
d23a0a12d9 Rename SelectionDAGLowering to SelectionDAGBuilder, and rename 
SelectionDAGBuild.cpp to SelectionDAGBuilder.cpp.

llvm-svn: 89681
 2009-11-23 18:04:58 +00:00
Devang Patel
327919890c We are not using DBG_STOPPOINT anymore. 
llvm-svn: 89536
 2009-11-21 02:46:55 +00:00
Jakob Stoklund Olesen
319458cd03 Be more clever about calculating live variables through new basic blocks. 
When splitting a critical edge, the registers live through the edge are:

- Used in a PHI instruction, or
- Live out from the predecessor, and
- Live in to the successor.

This allows the coalescer to eliminate even more phi joins.

llvm-svn: 89530
 2009-11-21 02:05:21 +00:00
Dan Gohman
3517f425b8 Target-independent support for TargetFlags on BlockAddress operands, 
and support for blockaddresses in x86-32 PIC mode.

llvm-svn: 89506
 2009-11-20 23:18:13 +00:00
David Goodwin
8954ccb109 Remove some old experimental code that is no longer needed. Remove additional, speculative scheduling pass as its cost did not translate into significant performance improvement. Minor tweaks. 
llvm-svn: 89471
 2009-11-20 19:32:48 +00:00
Dan Gohman
d3d7358309 Fix fast-isel to avoid selecting the return instruction if a 
tail call has been encountered.

llvm-svn: 89444
 2009-11-20 02:51:26 +00:00
Jakob Stoklund Olesen
ab8e8a9bc9 Add MachineBasicBlock::getName, and use it in place of getBasicBlock()->getName. 
Fix debug code that assumes getBasicBlock never returns NULL.

llvm-svn: 89428
 2009-11-20 01:17:03 +00:00
Jakob Stoklund Olesen
88ee85149d Allow the machine verifier to be run outside the PassManager. 
Verify LiveVariables information when present.

llvm-svn: 89241
 2009-11-18 20:36:57 +00:00
Jakob Stoklund Olesen
7a31251441 Remove the -early-coalescing option 
llvm-svn: 89240
 2009-11-18 20:36:47 +00:00
Evan Cheng
4ec2795a0c Add a WriteAsOperand for MachineBasicBlock so MachineLoopInfo dump looks sane. 
llvm-svn: 89130
 2009-11-17 19:19:59 +00:00
Lang Hames
2e0183a8a6 Fixed call to wrong constructor. 
llvm-svn: 89059
 2009-11-17 07:19:50 +00:00
Eric Christopher
3877235021 Fix unused variables warnings. 
llvm-svn: 88977
 2009-11-16 22:34:32 +00:00
Dan Gohman
838fa57091 Revert 88957. This file uses CodeGenOpt, which is defined in TargetMachine.h. 
llvm-svn: 88959
 2009-11-16 20:45:50 +00:00
Dan Gohman
9815fd7148 Remove an unnecessary #include. 
llvm-svn: 88957
 2009-11-16 20:41:12 +00:00
Dan Gohman
22377c8327 Sink a #include <map> to where it's actually needed. 
llvm-svn: 88956
 2009-11-16 20:40:47 +00:00
Dan Gohman
ca47376e90 Make PseudoSourceValue's classof recognize 
FixedStackPseudoSourceValueVal, to respect this isa relationship.

llvm-svn: 88954
 2009-11-16 20:40:06 +00:00
Jim Grosbach
e4dfaf99cd Add function to replace a destination MBB in a single jump table 
llvm-svn: 88804
 2009-11-14 20:09:13 +00:00
Benjamin Kramer
e9ba686ab8 Implement DISABLE_INLINE for MSVC. This required changing the position in all 
forward declaration and patching tblgen to emit it right. Patch by Amine Khaldi!

llvm-svn: 88798
 2009-11-14 16:37:18 +00:00
Lang Hames
8b2d2c7537 Added an API to the SlotIndexes pass to allow new instructions to be inserted into the numbering. 
PreAllocSplitting is now using this API to insert code.

llvm-svn: 88725
 2009-11-14 00:02:51 +00:00
Jakob Stoklund Olesen
ec4eff6c6a Add MachineFunction::verify() to call the machine code verifier directly. 
llvm-svn: 88706
 2009-11-13 21:56:09 +00:00
David Greene
7eb9716603 Remove duplicate APIs and state WRT spill objects. 
llvm-svn: 87106
 2009-11-13 14:42:06 +00:00
Dale Johannesen
f57a58c4fe Adjust isConstantSplat to allow for big-endian targets. 
PPC is such a target; make it work.

llvm-svn: 87060
 2009-11-13 01:45:18 +00:00
David Greene
1e8e66866e Do some cleanups suggested by Chris. 
llvm-svn: 87034
 2009-11-12 21:49:55 +00:00
David Greene
58e7c6145b Add a bool flag to StackObjects telling whether they reference spill 
slots.  The AsmPrinter will use this information to determine whether to
print a spill/reload comment.

Remove default argument values.  It's too easy to pass a wrong argument
value when multiple arguments have default values.  Make everything
explicit to trap bugs early.

Update all targets to adhere to the new interfaces..

llvm-svn: 87022
 2009-11-12 20:49:22 +00:00
David Greene
7828d47a9b Make FixedStackPseudoSourceValue a first-class PseudoSourceValue by 
making it visible to clients and adding LLVM-style cast capability.
This will be used by AsmPrinter to determine when to emit spill comments
for an instruction.

llvm-svn: 87019
 2009-11-12 20:25:07 +00:00
David Greene
84bd9b4c53 Add AsmPrinter comment flags to machine instructions so that AsmPrinter 
can emit extra information in comments.

llvm-svn: 87018
 2009-11-12 20:21:09 +00:00
David Greene
0eb140cf55 Add comment flags so AsmPrinter can output additional information when 
emitting comments.  These flags carry semantic information not otherwise
easily derivable from the IR text.

llvm-svn: 87016
 2009-11-12 20:13:34 +00:00
Devang Patel
c024e96ca3 "Attach debug info with llvm instructions" mode was enabled a month ago. Now make it permanent and remove old way of inserting intrinsics to encode debug info for line number and scopes. 
llvm-svn: 87014
 2009-11-12 19:02:56 +00:00
Jim Grosbach
f373f8c459 Move the utility function UpdateTerminator() from CodePlacementOpt() into 
MachineBasicBlock so other passes can utilize it.

llvm-svn: 86947
 2009-11-12 03:55:33 +00:00
Jakob Stoklund Olesen
01582996dd Fix liveness calculation when splitting critical edges during PHI elimination. 
- Edges are split before any phis are eliminated, so the code is SSA.

- Create a proper IR BasicBlock for the split edges.

- LiveVariables::addNewBlock now has same syntax as
  MachineDominatorTree::addNewBlock. Algorithm calculates predecessor live-out
  set rather than successor live-in set.

This feature still causes some miscompilations.

llvm-svn: 86867
 2009-11-11 19:31:31 +00:00
Devang Patel
5c983cb2ab Implement support to debug inlined functions. 
llvm-svn: 86748
 2009-11-10 23:06:00 +00:00
Jakob Stoklund Olesen
b92c9347ba Teach PHIElimination to split critical edges when -split-phi-edges is enabled. 
Critical edges leading to a PHI node are split when the PHI source variable is
live out from the predecessor block. This help the coalescer eliminate more
PHI joins.

llvm-svn: 86725
 2009-11-10 22:01:05 +00:00
Dan Gohman
c64e578e5a Print "..." instead of all the uninteresting register clobbers on call 
instructions. This makes CodeGen dumps significantly less noisy.

Example before:
  BL <ga:@bar>, %R0<imp-def>, %R1<imp-def,dead>, %R2<imp-def,dead>, %R3<imp-def,dead>, %R12<imp-def,dead>, %LR<imp-def,dead>, %D0<imp-def,dead>, %D1<imp-def,dead>, %D2<imp-def,dead>, %D3<imp-def,dead>, %D4<imp-def,dead>, %D5<imp-def,dead>, %D6<imp-def,dead>, %D7<imp-def,dead>, %D16<imp-def,dead>, %D17<imp-def,dead>, %D18<imp-def,dead>, %D19<imp-def,dead>, %D20<imp-def,dead>, %D21<imp-def,dead>, %D22<imp-def,dead>, %D23<imp-def,dead>, %D24<imp-def,dead>, %D25<imp-def,dead>, %D26<imp-def,dead>, %D27<imp-def,dead>, %D28<imp-def,dead>, %D29<imp-def,dead>, %D30<imp-def,dead>, %D31<imp-def,dead>, %CPSR<imp-def,dead>, %FPSCR<imp-def,dead>

Same example after:
  BL <ga:@bar>, %R0<imp-def>, %R1<imp-def,dead>, %LR<imp-def,dead>, %CPSR<imp-def,dead>, ...

llvm-svn: 86583
 2009-11-09 19:38:45 +00:00
Dan Gohman
8ef26198d2 Constify MachineFunctionAnalysis' TargetMachine reference. 
llvm-svn: 86564
 2009-11-09 18:18:49 +00:00
Dan Gohman
662f54fd6e Fix a comment. 
llvm-svn: 86558
 2009-11-09 17:06:51 +00:00
Dan Gohman
c194ec89ca Suppress implicit copy ctor and copy assignment for MachineFunction. 
llvm-svn: 86557
 2009-11-09 17:06:23 +00:00
Lang Hames
3126c532b2 Moved some ManagedStatics out of the SlotIndexes header. 
llvm-svn: 86446
 2009-11-08 08:49:59 +00:00
Daniel Dunbar
14465c444c Fix class -> struct tag. 
llvm-svn: 86416
 2009-11-07 23:21:30 +00:00
Anton Korobeynikov
0a13189111 Add 8 bit libcalls and make use of them for msp430 
llvm-svn: 86384
 2009-11-07 17:14:39 +00:00
Jeffrey Yasskin
502d93267d Make the need-stub variables accurate and consistent. In the case of 
MachineRelocations, "stub" always refers to a far-call stub or a
load-a-faraway-global stub, so this patch adds "Far" to the term. (Other stubs
are used for lazy compilation and dlsym address replacement.) The variable was
also inconsistent between the positive and negative sense, and the positive
sense ("NeedStub") was more demanding than is accurate (since a nearby-enough
function can be called directly even if the platform often requires a stub).
Since the negative sense causes double-negatives, I switched to
"MayNeedFarStub" globally.

llvm-svn: 86363
 2009-11-07 08:51:52 +00:00
Lang Hames
b5bff25ba7 Update some globals to use ManagedStatic. 
llvm-svn: 86342
 2009-11-07 05:50:28 +00:00