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37930 Commits

Author SHA1 Message Date
Devang Patel 12563b3495 Add support to emit dwarf ranges. 
llvm-svn: 101575
 2010-04-16 23:33:45 +00:00
Jakob Stoklund Olesen ae372e2ce0 Use a simpler data structure to calculate the least recently used register in RegAllocLocal. 
This makes the local register allocator about 20% faster.

llvm-svn: 101574
 2010-04-16 23:32:37 +00:00
Johnny Chen c275414575 Cast to (uint64_t) instead of relying on the "ul" suffix. 
llvm-svn: 101573
 2010-04-16 23:30:28 +00:00
Chris Lattner de023a3c1d building on the new CallGraphSCC abstraction, teach CallGraphSCCPassManager 
to keep the node entries in scc_iterator up to date instead of dangling as
the SCC mutates.

This is a really terrible problem which was causing -g to affect codegen 
because it would permute the memory image of the compiler process.

Thanks to Dale for expertly hunting it down.

llvm-svn: 101565
 2010-04-16 23:04:30 +00:00
Dan Gohman 9becdddc49 Add skeleton target-specific SelectionDAGInfo files. 
llvm-svn: 101564
 2010-04-16 23:04:22 +00:00
Johnny Chen ed9bee150b Fixed logic error. Should check Builder for validity before calling SetSession 
on it.

llvm-svn: 101563
 2010-04-16 23:02:25 +00:00
Chris Lattner 5518b81a98 move ReplaceNode out of line, rename scc_iterator::fini -> isAtEnd(). 
No functionality change.

llvm-svn: 101562
 2010-04-16 22:59:24 +00:00
Chris Lattner 4422d31b84 introduce a new CallGraphSCC class, and pass it around 
to CallGraphSCCPass's instead of passing around a
std::vector<CallGraphNode*>.  No functionality change,
but now we have a much tidier interface.

llvm-svn: 101558
 2010-04-16 22:42:17 +00:00
Johnny Chen b90b6f1a35 Fixed a bug in DisassembleN1RegModImmFrm() where a break stmt was missing for a 
case.  Also, the 0xFF hex literal involved in the shift for ESize64 should be
suffixed "ul" to preserve the shift result.

Implemented printHex*ImmOperand() by copying from ARMAsmPrinter.cpp and added a
test case for DisassembleN1RegModImmFrm()/printHex64ImmOperand().

llvm-svn: 101557
 2010-04-16 22:40:20 +00:00
Evan Cheng f037f87bde (i32 sext_in_reg (i32 aext (i16 x)), i16) -> (i32 sext x). No known test case until -promote-16bit is enabled. 
llvm-svn: 101551
 2010-04-16 22:26:19 +00:00
Chris Lattner 6d1208fd2b move PrintCallGraphPass out of the middle of CGPassManager. 
llvm-svn: 101543
 2010-04-16 21:43:55 +00:00
Chris Lattner d4758fc393 add a missing break back, patch by Nico Schmidt! 
llvm-svn: 101538
 2010-04-16 21:15:15 +00:00
Dan Gohman c4759a5b97 Create a new TargetSelectionDAGInfo class. This will eventually acquire 
SelectionDAG-specific parts of TargetLowering.

llvm-svn: 101537
 2010-04-16 21:12:11 +00:00
Dan Gohman 4d273f4519 Commit this, which should have accompanied 101531. 
llvm-svn: 101532
 2010-04-16 20:22:43 +00:00
Dan Gohman 148c69a3f6 Eliminate an unnecessary SelectionDAG dependency in getOptimalMemOpType. 
llvm-svn: 101531
 2010-04-16 20:11:05 +00:00
Johnny Chen 2b7aba10c2 In the same spirit of r101524, which removed the assert() from printAddrMode2OffsetOperand(), 
this patch removes the assert() from printAddrMode3OffsetOperand() and adds a test case.

llvm-svn: 101529
 2010-04-16 19:57:21 +00:00
Johnny Chen 807e1748fc Multiclass LdStCop was using pre-UAL syntax LDC<c>L for the L fragment. Changed 
to the UAL syntax of LDCL<c>, instead.

Add a test case for this change which also tests the removal of assert() from
printAddrMode2OffsetOperand().

llvm-svn: 101527
 2010-04-16 19:33:23 +00:00
Johnny Chen 88599a42bb Remove the assert() from printAddrMode2OffsetOperand(). "#0 and #-0" are 
considered legal instructions.

Refs: A8.6.51 LDC, LDC2 (immediate) -- page A8-107, A8.6.58 LDR (immediate, ARM)
-- page A8-121, and A8.6.194 STR (immediate, ARM) -- page A8-395.

llvm-svn: 101524
 2010-04-16 19:10:52 +00:00
Evan Cheng 954bd598dd 80 col. 
llvm-svn: 101501
 2010-04-16 17:58:41 +00:00
Evan Cheng d6b0a7c075 80 col. 
llvm-svn: 101500
 2010-04-16 17:57:59 +00:00
Dan Gohman 3a7ee8eead Avoid creating virtual registers for unused values. 
llvm-svn: 101480
 2010-04-16 17:15:02 +00:00
Dan Gohman 5664b9f1a9 Fix an assertion string. 
llvm-svn: 101478
 2010-04-16 16:55:18 +00:00
Dan Gohman 4572a9f479 Fix a comment. 
llvm-svn: 101477
 2010-04-16 16:52:37 +00:00
Dan Gohman f13f69f296 Disable inlining of recursive calls. It can complicate tailcallelim and 
dependent analyses, and increase code size, so doing it profitably would
require more complex heuristics.

llvm-svn: 101471
 2010-04-16 16:01:18 +00:00
Dan Gohman 99e5327bfd Refine the detection of seemingly infinitely recursive calls where the 
callee is expected to be expanded to something else by codegen, so that
normal infinitely recursive calls are still transformed.

llvm-svn: 101468
 2010-04-16 15:57:50 +00:00
Gabor Greif f375520f7b reapply r101434 
with a fix for self-hosting

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary

llvm-svn: 101465
 2010-04-16 15:33:14 +00:00
Dan Gohman b3862ecd48 Make callIsSmall accessible as a utility function. 
llvm-svn: 101463
 2010-04-16 15:14:50 +00:00
Dan Gohman 12293815de Fix SCEVCommutativeExpr::print to be robust in the case of improper 
expression canonicalization. Its job is to print what's there, not to
make judgements about it.

llvm-svn: 101461
 2010-04-16 15:03:25 +00:00
Bill Wendling 929f3c0927 The JIT calls TidyLandingPads to tidy up the landing pads. However, because the 
JIT doesn't use the MC back-end asm printer to emit labels that it uses, the
section for the MCSymbol is never set. And thus the MCSymbol for the EH label
isn't marked as "defined". Because of that, TidyLandingPads removes the needed
landing pads from the JIT output. This breaks EH for every JIT program.

This is a work-around for this limitation. We pass in the label locations
map. If the label has a non-zero value, then it was "emitted" by the JIT and
TidyLandingPads shouldn't remove that label.

A nicer solution would be to mark the MCSymbol as "used" by the JIT and not rely
upon the section being set to determine if it's defined or not.

llvm-svn: 101453
 2010-04-16 08:46:10 +00:00
Evan Cheng af56facacd Adding support for dag combiner to promote operations for profit. This requires target specific queries. For example, x86 should promote i16 to i32 when it does not impact load folding. 
x86 support is off by default. It can be enabled with -promote-16bit.

Work in progress.

llvm-svn: 101448
 2010-04-16 06:14:10 +00:00
Evan Cheng 3da64f7672 Use getAL() rather than a major constant. 
llvm-svn: 101446
 2010-04-16 05:46:06 +00:00
Dan Gohman 5563473062 Refine further the scope where the global DebugLoc value is active. 
llvm-svn: 101443
 2010-04-16 05:06:56 +00:00
Eric Christopher 206d7ce582 Silence an unused variable warning. 
llvm-svn: 101438
 2010-04-16 04:02:04 +00:00
Chris Lattner bd2d9430d6 fix comment noticed by Bob 
llvm-svn: 101437
 2010-04-16 02:32:17 +00:00
Gabor Greif 403e9694f9 back out r101423 and r101397, they break llvm-gcc self-host on darwin10 
llvm-svn: 101434
 2010-04-16 01:16:20 +00:00
Chris Lattner 1146d326a7 fix PR6832: we were using the alignment of a pointer when we 
wanted the alignment of the pointee.

llvm-svn: 101432
 2010-04-16 01:05:38 +00:00
Chris Lattner b73552908e improve comments. 
llvm-svn: 101429
 2010-04-16 00:38:19 +00:00
Chris Lattner 78d7dbbc30 pull all the ConvertToScalarInfo code together into one 
place.

llvm-svn: 101427
 2010-04-16 00:24:57 +00:00
Chris Lattner d69c3ee958 more refactoring: suck some stuff out of SRoA into 
ConvertToScalarInfo.

llvm-svn: 101425
 2010-04-16 00:20:00 +00:00
Gabor Greif 6af0ad846e shift intrinsic operand 
llvm-svn: 101423
 2010-04-16 00:06:45 +00:00
Chris Lattner 9ef4eae6e6 introduce a new ConvertToScalarInfo struct to simplify 
CanConvertToScalar/MergeInType.  Eliminate a pointless
LLVMContext argument to MergeInType.

llvm-svn: 101422
 2010-04-15 23:50:26 +00:00
Jakob Stoklund Olesen cdc3df4888 Avoid sinking machine instructions into a loop. 
MachineLoopInfo is already available when MachineSinking runs, so the check is
free.

There is no test case because it would require a critical edge into a loop, and
CodeGenPrepare splits those. This check is just to be extra careful.

llvm-svn: 101420
 2010-04-15 23:41:02 +00:00
Johnny Chen acbc06c2a3 Fixed a bug in ARM disassembly where LDRSBT should have am3offset operand, not 
am2offset.  Modified the instruction table entry and added a new test case.

llvm-svn: 101415
 2010-04-15 23:12:47 +00:00
Evan Cheng f7f97b4bbd Use default lowering of DYNAMIC_STACKALLOC. As far as I can tell, ARM isle is doing the right thing and codegen looks correct for both Thumb and Thumb2. 
llvm-svn: 101410
 2010-04-15 22:20:34 +00:00
Chris Lattner 9c1172d848 tidy interface to isOnlyCopiedFromConstantGlobal 
llvm-svn: 101405
 2010-04-15 21:59:20 +00:00
Gabor Greif 33ae80bff7 reapply r101364, which has been backed out in r101368 
with a fix

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary

llvm-svn: 101397
 2010-04-15 20:51:13 +00:00
Jakob Stoklund Olesen b642a27525 Fix PR6847. RegScavenger should ignore DebugValues. 
llvm-svn: 101392
 2010-04-15 20:28:39 +00:00
Nicolas Geoffray 19cd1d84ad Make sure the initialization of a GC root is after its definition. 
llvm-svn: 101388
 2010-04-15 19:53:35 +00:00
Anton Korobeynikov 839cdaa70a Revert r100896 and around - this breaks the only mingw32 buildbot we have. 
llvm-svn: 101387
 2010-04-15 19:51:42 +00:00
Gabor Greif b36d07cb93 prune includes 
llvm-svn: 101385
 2010-04-15 19:44:21 +00:00