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Author SHA1 Message Date
Dan Gohman
f0d7b5df4b Hoist this loop-invariant logic out of the loop. 
llvm-svn: 96614
 2010-02-18 21:34:02 +00:00
Jakob Stoklund Olesen
5b9d14b55e Always normalize spill weights, also for intervals created by spilling. 
Moderate the weight given to very small intervals.

The spill weight given to new intervals created when spilling was not
normalized in the same way as the original spill weights calculated by
CalcSpillWeights. That meant that restored registers would tend to hang around
because they had a much higher spill weight that unspilled registers.

This improves the runtime of a few tests by up to 10%, and there are no
significant regressions.

llvm-svn: 96613
 2010-02-18 21:33:05 +00:00
Dan Gohman
34b5cb7deb Make CodePlacementOpt detect special EH control flow by 
checking whether AnalyzeBranch disagrees with the CFG
directly, rather than looking for EH_LABEL instructions.
EH_LABEL instructions aren't always at the end of the
block, due to FP_REG_KILL and other things. This fixes
an infinite loop compiling MultiSource/Benchmarks/Bullet.

llvm-svn: 96611
 2010-02-18 21:25:53 +00:00
Devang Patel
823a78e1f8 Fix comments. 
llvm-svn: 96610
 2010-02-18 21:03:36 +00:00
Devang Patel
5c67cb332e Destroy MDNodes gracefully while deleting llvm context. 
llvm-svn: 96609
 2010-02-18 20:53:16 +00:00
Devang Patel
d913aa8fd8 Ignore target dependent value in grep search. 
llvm-svn: 96604
 2010-02-18 19:52:12 +00:00
Dale Johannesen
fe3e4e29e3 Generate DBG_VALUE from dbg.value intrinsics. These currently 
comes out as comments but will eventually generate DWARF.

llvm-svn: 96601
 2010-02-18 18:51:15 +00:00
Dan Gohman
4fc21185cc Clarify that ptrtoint+inttoptr are an alternative to GEP which are 
not restricted by the GEP rules.

llvm-svn: 96598
 2010-02-18 18:40:29 +00:00
Dan Gohman
c3b7c57bb0 Fix a typo. 
llvm-svn: 96597
 2010-02-18 18:22:41 +00:00
Dan Gohman
d6397d8097 Clarify that the rules about object hopping kick in when a pointer is 
deferenced, rather than when the pointer value is computed.

llvm-svn: 96596
 2010-02-18 18:22:18 +00:00
Dan Gohman
a3a061eab9 Fix typos Duncan noticed. 
llvm-svn: 96594
 2010-02-18 18:19:17 +00:00
Sanjiv Gupta
7534497c21 Remap the call sites of a shared function in interrupt line functions. 
llvm-svn: 96591
 2010-02-18 18:00:35 +00:00
Sanjiv Gupta
49c6de3b78 Re-factoring. 
llvm-svn: 96589
 2010-02-18 17:32:25 +00:00
Duncan Sands
b7bb8ab12e Uniformize the way these options are printed. Requested by 
Russell Wallace.

llvm-svn: 96580
 2010-02-18 14:37:52 +00:00
Duncan Sands
80083e741f Remove terminating dot in description. Inconsistency pointed 
out by Russell Wallace.

llvm-svn: 96579
 2010-02-18 14:10:41 +00:00
Duncan Sands
ca05b607b7 Refer to -help instead of --help since this is what tools themselves say. 
Also, have tools output -help-hidden rather than refer to --help-hidden,
for consistency, and likewise adjust documentation.  This doesn't change
every mention of --help, only those which seemed clearly safe.

llvm-svn: 96578
 2010-02-18 14:08:13 +00:00
Benjamin Kramer
c855708633 Avoid a dangling pointer dereference, PassManager::add can delete the Pass. 
llvm-svn: 96576
 2010-02-18 12:57:05 +00:00
Chris Lattner
5bc53ac6f5 start sketching out the structure of code for result emission generation. 
Nothing real here yet.

llvm-svn: 96575
 2010-02-18 06:47:49 +00:00
Chris Lattner
43912e2c46 add a missing type cast. 
llvm-svn: 96574
 2010-02-18 06:33:42 +00:00
Chris Lattner
a2e094064f remove empty file 
llvm-svn: 96573
 2010-02-18 06:29:06 +00:00
Bob Wilson
84fc0200bd Use NEON vmin/vmax instructions for floating-point selects. 
Radar 7461718.

llvm-svn: 96572
 2010-02-18 06:05:53 +00:00
Jeffrey Yasskin
e4b750f830 Roll back the shared library, r96559. It broke two darwins and arm, mysteriously. 
llvm-svn: 96569
 2010-02-18 04:43:02 +00:00
Johnny Chen
2ef74d0ad2 Added LDRSBT, LDRHT, LDRSHT for disassembly only. And fixed encoding errors 
of AI3ldsbpo, AI3ldhpo, and AI3ldshpo in ARMInstrFormats.td in the process.

llvm-svn: 96565
 2010-02-18 03:27:42 +00:00
Chris Lattner
76506b3749 rename the child field to 'next'. This is not a parent/child 
relationship, this is a linear list relationship.

llvm-svn: 96561
 2010-02-18 02:53:41 +00:00
Chris Lattner
955650be1f eliminate the MatcherNodeWithChild class, give the 'child' 
field to MatcherNode.

llvm-svn: 96560
 2010-02-18 02:49:24 +00:00
Jeffrey Yasskin
64b33dd9b7 Add a shared library for LLVM, named libLLVM2.7svn.(so|dylib), and add an 
--enable-shared configure flag to have the tools linked shared. (2.7svn is just
$(LLVMVersion) so it'll change to "2.7" in the release.)  Always link the
example programs shared to test that the shared library keeps working.

On my mac laptop, Debug libLLVM2.7svn.dylib is 39MB, and opt (for example) is
16M static vs 440K shared.

Two things are less than ideal here:
1) The library doesn't include any version information. Since we expect to break
the ABI with every release, this shouldn't be much of a problem. If we do
release a compatible 2.7.1, we may be able to hack its library to work with
binaries compiled against 2.7.0, or we can just ask them to recompile. I'm
hoping to get a real packaging expert to look at this for the 2.8 release.
2) llvm-config doesn't yet have an option to print link options for the shared
library. I'll add this as a subsequent patch.

llvm-svn: 96559
 2010-02-18 02:36:02 +00:00
Evan Cheng
9af06dfc83 Some dag combiner goodness: 
Transform br (xor (x, y)) -> br (x != y)
Transform br (xor (xor (x,y), 1)) -> br (x == y)
Also normalize (and (X, 1) == / != 1 -> (and (X, 1)) != / == 0 to match to "test on x86" and "tst on arm"

llvm-svn: 96556
 2010-02-18 02:13:50 +00:00
Devang Patel
f5f89839ed New test case for r96543. 
llvm-svn: 96544
 2010-02-18 00:53:49 +00:00
Chris Lattner
025ca7158a fit in 80 cols 
llvm-svn: 96541
 2010-02-18 00:23:27 +00:00
Johnny Chen
7f0bf276c2 Added for disassembly only the variants of DMB, DSB, and ISB. 
llvm-svn: 96540
 2010-02-18 00:19:08 +00:00
Eric Christopher
88fe6775de Fix a few unused parameter warnings. 
llvm-svn: 96533
 2010-02-17 23:55:26 +00:00
Daniel Dunbar
2f311d34fb MC/Mach-O: Update fixup values for change to X86 offsets. 
llvm-svn: 96532
 2010-02-17 23:45:16 +00:00
Dan Gohman
2324463069 Make this an unnumbered list. 
llvm-svn: 96528
 2010-02-17 22:54:10 +00:00
Dan Gohman
0053291bb5 HTML validation fixes. 
llvm-svn: 96527
 2010-02-17 22:50:12 +00:00
Dan Gohman
b07c61ac51 Add an "advanced" GetElementPtr FAQ document, with answers to 
questions left unanswered by the first GetElementPtr FAQ.

llvm-svn: 96526
 2010-02-17 22:47:06 +00:00
Bob Wilson
400e59ba21 Remove the NEON N2VSInt instruction class: it's only used in one place and 
since it has no pattern, there's not much point in distinguishing an "N2VS"
class for intrinsics anyway.

llvm-svn: 96525
 2010-02-17 22:42:54 +00:00
Johnny Chen
69bbc8c81b Added CLREX (Clear-Exclusive) for disassembly only. 
A8.6.30

llvm-svn: 96523
 2010-02-17 22:37:58 +00:00
Bob Wilson
ea55421ec2 More cleanup for NEON: 
* Use "S" abbreviation for scalar single FP registers in class and pattern
names, instead of keeping the "D" (for "double") abbreviation and tacking on
an "s" elsewhere in the name.
* Move the scalar single FP register classes and patterns to be more
consistent with other definitions in the file.
* Rename "VNEGf32d" definition to "VNEGfd" for consistency.
* Deleted the N2VDIntsPat pattern; N2VSPat is good enough.

llvm-svn: 96521
 2010-02-17 22:23:11 +00:00
Johnny Chen
6b8a65b0e0 Added RFE for disassembly only. 
B6.1.8 RFE Return From Exception loads the PC and the CPSR from the word at the
specified address and the following word respectively.

llvm-svn: 96519
 2010-02-17 21:39:10 +00:00
David Greene
d93fb1f15d Make the non-temporal bit "significant" in MemSDNodes so they aren't 
CSE'd or otherwise combined with temporal MemSDNodes.

llvm-svn: 96505
 2010-02-17 20:21:42 +00:00
Jakob Stoklund Olesen
1b593e1b45 Remember to define super registers in mips calls. 
llvm-svn: 96504
 2010-02-17 20:18:50 +00:00
Daniel Dunbar
92e99d82a2 Add Regex::sub, for doing regular expression substitution with backreferences. 
llvm-svn: 96503
 2010-02-17 20:08:42 +00:00
Chris Lattner
f4a6f4d0ef irbuilder is doing constant folding now by default, PR6092 
llvm-svn: 96502
 2010-02-17 19:54:34 +00:00
Chris Lattner
9af1b53985 fix some out of date prose dating from the LLVMContext changes. 
llvm-svn: 96500
 2010-02-17 19:51:31 +00:00
Daniel Dunbar
27247dd1e8 Fix comment. 
llvm-svn: 96498
 2010-02-17 19:26:45 +00:00
Chris Lattner
a1f12685c7 redisable this to save people a small amount of build time. 
llvm-svn: 96497
 2010-02-17 19:19:50 +00:00
Jakob Stoklund Olesen
e7862f29ec Dead code elimination. 
llvm-svn: 96496
 2010-02-17 19:13:56 +00:00
Chris Lattner
5f903139fa "Fix and issue in SparcAsmPrinter where multiple identical .LLGETPCHn symbols could be emitted in the same file (it was uniqued by block number, but not by function number). " Patch by Nathan Keynes! 
llvm-svn: 96495
 2010-02-17 18:57:19 +00:00
Chris Lattner
2ec1f1a54a move isOnlyReachableByFallthrough out of MachineBasicBlock into AsmPrinter, 
and add a sparc implementation that knows about delay slots.  Patch by
Nathan Keynes!

llvm-svn: 96492
 2010-02-17 18:52:56 +00:00
Chris Lattner
f95f8a8c7c add a note, from PR5100 
llvm-svn: 96490
 2010-02-17 18:42:24 +00:00