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Author SHA1 Message Date
Matt Beaumont-Gay
fc76b0ce6e Mostly undo r123297, but move the default case in EvaluateAsPCRel to the top 
of the switch block to appease GCC.

llvm-svn: 123317
 2011-01-12 18:02:55 +00:00
Nick Lewycky
fb3f7c11f1 Add another note taken from the gcc bugzilla. 
llvm-svn: 123315
 2011-01-12 09:06:19 +00:00
Venkatraman Govindaraju
2d89fea217 Implement RETURNADDR and FRAMEADDR lowering in SPARC backend. 
llvm-svn: 123310
 2011-01-12 05:08:36 +00:00
Venkatraman Govindaraju
59e9ffc998 Remove SPARC backend getpcx instruction's Uses. Also, insert an assert to 
ensure %o7 is not assigned as the destination of getpcx instruction.

llvm-svn: 123304
 2011-01-12 03:52:59 +00:00
Chris Lattner
fdef60bef7 revert 123144, reenabling the rest of memset formation. 
llvm-svn: 123302
 2011-01-12 03:25:15 +00:00
Venkatraman Govindaraju
816f7dfed0 Fix SPARC backend call instruction so that arguments passed through registers 
are correctly marked as used instead of passing all possible argument registers
as used.  

llvm-svn: 123301
 2011-01-12 03:18:21 +00:00
Chris Lattner
e288204194 revert r123146 which disabled code that wasn't the root cause 
of the bootstrap miscompare issue.

llvm-svn: 123299
 2011-01-12 01:52:23 +00:00
Chris Lattner
c7a5a12af5 revert r123149, reenabling an improvement to memcpyopt that wasn't 
the source of the bootstrap problem.

llvm-svn: 123298
 2011-01-12 01:43:46 +00:00
Matt Beaumont-Gay
033b288e84 Prefer llvm_unreachable to assert(0) 
llvm-svn: 123297
 2011-01-12 01:42:42 +00:00
Jason W Kim
ae183f9862 1. Support ELF pcrel relocations for movw/movt: 
R_ARM_MOVT_PREL and R_ARM_MOVW_PREL_NC.
2. Fix minor bug in ARMAsmPrinter - treat bitfield flag as a bitfield, not an enum.
3. Add support for 3 new elf section types (no-ops)

llvm-svn: 123294
 2011-01-12 00:19:25 +00:00
Jason W Kim
db6eddeea3 Workaround for bug 8721. 
.s Test added.

llvm-svn: 123292
 2011-01-11 23:53:41 +00:00
Jakob Stoklund Olesen
1f7052b53b The world is not ready for LiveDebugVariables yet. 
llvm-svn: 123290
 2011-01-11 23:20:33 +00:00
Jakob Stoklund Olesen
b935aa1678 Remove the PR8954 workaround. 
llvm-svn: 123288
 2011-01-11 22:56:41 +00:00
Jakob Stoklund Olesen
37fe53c1a9 Fix a non-deterministic loop in llvm::MergeBlockIntoPredecessor. 
DT->changeImmediateDominator() trivially ignores identity updates, so there is
really no need for the uniqueing provided by SmallPtrSet.

I expect this to fix PR8954.

llvm-svn: 123286
 2011-01-11 22:54:38 +00:00
Jakob Stoklund Olesen
d7a523358c Enable LiveDebugVariables by default. 
llvm-svn: 123282
 2011-01-11 22:45:28 +00:00
Venkatraman Govindaraju
f681d4e782 SPARC backend: correct ICC/FCC uses for ADDX and SELECT_CC 
llvm-svn: 123281
 2011-01-11 22:38:28 +00:00
Cameron Zwarich
b0e688cc7c Dial back the speculative fix for PR8954 a bit, so that we only recompute dominators 
once at the beginning of GVN instead of once per iteration.

llvm-svn: 123278
 2011-01-11 22:14:42 +00:00
Jakob Stoklund Olesen
1cd577b435 Don't insert DBG_VALUE instructions after the first terminator. 
For one, MachineBasicBlock::getFirstTerminator() doesn't understand what is
happening, and it also makes sense to have all control flow run through the
DBG_VALUE.

llvm-svn: 123277
 2011-01-11 22:11:16 +00:00
Evan Cheng
05ef00f4dc Clean up ARM subtarget code by using Triple ADT. 
llvm-svn: 123276
 2011-01-11 21:46:47 +00:00
Devang Patel
7b5cf4eafc Appropriately truncate debug info range in dwarf output. 
This is not yet completely enabled.

llvm-svn: 123274
 2011-01-11 21:42:10 +00:00
Jakob Stoklund Olesen
add3ef6ca2 Put the Dominator improvements back in. They were not the cause of bootstrap miscomparisons. 
llvm-svn: 123273
 2011-01-11 21:23:09 +00:00
Cameron Zwarich
e8c1c44e01 Attempt to fix the bootstrap buildbot. Rafael says this works for him on x86-64 Linux. 
llvm-svn: 123270
 2011-01-11 20:23:34 +00:00
Jakob Stoklund Olesen
264d2e5c08 Speculatively revert the recent improvements to Dominators.h in an attempt to track down the gcc bootstrap miscompare. 
llvm-svn: 123254
 2011-01-11 19:26:30 +00:00
Daniel Dunbar
c9c0581897 McARM: Fill in GetMnemonicAcceptInfo(). 
llvm-svn: 123253
 2011-01-11 19:06:29 +00:00
Daniel Dunbar
f14e43062c McARM: Write a silly Python script to compute some hard coded info from the 
generated ARM match table, which is substantially more efficient than dealing
with tblgen.

llvm-svn: 123252
 2011-01-11 19:06:26 +00:00
Owen Anderson
a82627567b Remove dead variable, const-ref-ize an APInt. 
llvm-svn: 123248
 2011-01-11 18:26:37 +00:00
Chris Lattner
1674862564 this pass claims to preserve scev, make sure to tell it about deletions. 
llvm-svn: 123247
 2011-01-11 18:14:50 +00:00
Bob Wilson
63547ae69e Fix a comment: We now have intrinsics for vcvtr. 
llvm-svn: 123246
 2011-01-11 17:56:41 +00:00
Chris Lattner
8c0a70a30c some comment improvements. 
llvm-svn: 123243
 2011-01-11 17:11:59 +00:00
Chris Lattner
586e7af07d Fix PR8946, a missing reg/reg form of movdqu. 
llvm-svn: 123242
 2011-01-11 17:04:55 +00:00
Daniel Dunbar
0cc3d4d8bc McARM: Sketch some logic for determining when to add carry set and predication code operands based on the "canonical mnemonic". 
llvm-svn: 123239
 2011-01-11 15:59:53 +00:00
Daniel Dunbar
fbc0b96c34 McARM: Add more hard coded logic to SplitMnemonicAndCC to also split out the 
carry setting flag from the mnemonic.

Note that this currently involves me disabling a number of working cases in
arm_instructions.s, this is a hopefully short term evil which will be rapidly
fixed (and greatly surpassed), assuming my current approach flies.

llvm-svn: 123238
 2011-01-11 15:59:50 +00:00
Jay Foad
993406aaba FixedNumOperandTraits and VariadicOperandTraits assumed that, given a 
"this" pointer for any subclass of User, you could static_cast it to
User* and then reinterpret_cast that to Use* to get the end of the
operand list. This isn't a safe assumption in general, because the
static_cast might adjust the "this" pointer. Fixed by having these
OperandTraits classes take an extra template parameter, which is the
subclass of User. This is groundwork for PR889.

llvm-svn: 123235
 2011-01-11 15:07:38 +00:00
Frits van Bommel
f5bd48972a Factor the actual simplification out of SimplifyIndirectBrOnSelect and into a new helper function so it can be reused in e.g. an upcoming SimplifySwitchOnSelect. 
No functional change.

llvm-svn: 123234
 2011-01-11 12:52:11 +00:00
Oscar Fuentes
82cc1fb69c Add to the CMake build some options and platform tests supported by 
the traditional build.

Patch by arrowdodger!

llvm-svn: 123233
 2011-01-11 12:31:54 +00:00
Oscar Fuentes
123864334b Made llvm_replace_compiler_option more robust. Use it on 
llvm_process_sources.

llvm-svn: 123232
 2011-01-11 12:31:34 +00:00
Kalle Raiskila
492a821e21 Fix a thinko in 123226 that caused test failures on "other" platforms. 
llvm-svn: 123229
 2011-01-11 11:27:56 +00:00
Eric Christopher
c6db56a31e Revert the testcase from the previous reverted commit. 
llvm-svn: 123227
 2011-01-11 09:20:44 +00:00
Kalle Raiskila
457fa0b3bc Add a "nop filler" pass to SPU. 
Filling no-ops is done just before emitting of assembly,
when the instruction stream is final. No-ops are inserted
to align the instructions so the dual-issue of the pipeline
is utilized. This speeds up generated code with a minimum of 
1% on a select set of algorithms.

This pass may be redundant if the instruction scheduler and 
all subsequent passes that modify the instruction stream 
(prolog+epilog inserter, register scavenger, are there others?)
are made aware of the instruction alignments.

llvm-svn: 123226
 2011-01-11 09:07:54 +00:00
Eric Christopher
e86e1aecd8 Temporarily revert 123133, it's causing some regressions and I'm trying 
to get a testcase.

llvm-svn: 123225
 2011-01-11 09:02:09 +00:00
Chris Lattner
e5688368c6 update memdep when an instruction is deleted. This code isn't 
actually reached in the testcase in PR8954, but it's safe and good
practice.

llvm-svn: 123224
 2011-01-11 08:19:16 +00:00
Chris Lattner
a82a6cfe6d when MergeBlockIntoPredecessor merges two blocks, update MemDep if it 
is floating around in the ether.

llvm-svn: 123223
 2011-01-11 08:16:49 +00:00
Chris Lattner
dc7b2160ba Fix FoldSingleEntryPHINodes to update memdep and AA when it deletes 
phi nodes.  It is called from MergeBlockIntoPredecessor which is 
called from GVN, which claims to preserve these.

I'm skeptical that this is the actual problem behind PR8954, but
this is a stab in the right direction.

llvm-svn: 123222
 2011-01-11 08:13:40 +00:00
Chris Lattner
b1a9c9ed36 random cleanups 
llvm-svn: 123221
 2011-01-11 08:00:40 +00:00
Chris Lattner
feade29ab8 merge tests into one crash.ll test. 
llvm-svn: 123220
 2011-01-11 07:50:07 +00:00
Chris Lattner
5731a92f5b remove a bogus assertion: the latch block of a loop is not 
neccesarily an uncond branch to the header.  This fixes 
PR8955 (the assertion tripping).

llvm-svn: 123219
 2011-01-11 07:47:59 +00:00
Chris Lattner
14bf29d7a0 the GEP faq says that only inbounds geps are guaranteed to not overflow. 
llvm-svn: 123218
 2011-01-11 06:44:41 +00:00
Jakob Stoklund Olesen
43e92a1d28 Revert r123207: "Turn on memdep's verifyRemoved() in an attempt to smoke out the cause of our gcc bootstrap miscompare." 
It didn't.

llvm-svn: 123215
 2011-01-11 04:05:39 +00:00
Michael J. Spencer
6d4a8a7b72 Support/Path: Deprecate PathV1::isDirectory and replace all uses with PathV2::is_directory. 
llvm-svn: 123209
 2011-01-11 01:21:55 +00:00
Jakob Stoklund Olesen
d8abef4798 Turn on memdep's verifyRemoved() in an attempt to smoke out the cause of our gcc bootstrap miscompare. 
llvm-svn: 123207
 2011-01-11 01:18:03 +00:00