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Author SHA1 Message Date
Jason W Kim
6464be5b92 JimG sez: "The value-kinds look like masks, but they're not consistently used 
that way, unfortunately. If you want to change them to work additively instead
of a one-variant-kind-per-symbolref, that's great and I completely agree it's
worth doing, but it really should be a separate patch. Until then, this isn't
correct."

So I am reverting this bit until a more opportune time.

llvm-svn: 123340
 2011-01-12 23:21:49 +00:00
Jakob Stoklund Olesen
953b1b115d Don't emit a DBG_VALUE for a spill slot that the rewriter decided not to use after all. 
llvm-svn: 123339
 2011-01-12 23:14:07 +00:00
Jakob Stoklund Olesen
48c7a5cf7e Fix braino in dominator tree walk. 
llvm-svn: 123338
 2011-01-12 23:14:04 +00:00
Jakob Stoklund Olesen
7a13190a2e Sometimes, old virtual registers can linger on DBG_VALUE instructions. 
Make sure we don't crash in that case, but simply turn them into %noreg instead.

llvm-svn: 123335
 2011-01-12 22:37:49 +00:00
Jakob Stoklund Olesen
59d3b89873 Teach VirtRegRewriter to update slot indexes when erasing instructions. 
It was leaving dangling pointers in the slot index maps.

llvm-svn: 123334
 2011-01-12 22:28:51 +00:00
Jakob Stoklund Olesen
8c5c268f05 Annotate VirtRegRewriter debug output with slot indexes. 
llvm-svn: 123333
 2011-01-12 22:28:48 +00:00
Jakob Stoklund Olesen
c1a042a528 Verify slot index ordering. 
The slot indexes must be monotonically increasing through the function.

llvm-svn: 123324
 2011-01-12 21:27:48 +00:00
Jakob Stoklund Olesen
22bdcea2fd Assert if anybody tries to put a slot index on a DBG_VALUE instruction. 
llvm-svn: 123323
 2011-01-12 21:27:45 +00:00
Jakob Stoklund Olesen
764cce86f0 Verify that machine instruction parent pointers are consistent. 
llvm-svn: 123322
 2011-01-12 21:27:41 +00:00
Bill Wendling
e82361731d Sort the register list based on the *actual* register numbers rather than the 
enum values we give to them. <rdar://problem/8823730>

llvm-svn: 123321
 2011-01-12 21:20:59 +00:00
Devang Patel
52db9b4821 Use SmallVector instead of SmallPtrSet and avoid non-deterministic behavior. 
llvm-svn: 123318
 2011-01-12 19:12:45 +00:00
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