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15112 Commits

Author SHA1 Message Date
Rafael Espindola
19a13321f8 Don't print a label before .cfi_startproc when we don't need to. This makes 
the produce assembly when using CFI just a bit more readable.

llvm-svn: 147743
 2012-01-07 22:42:19 +00:00
Benjamin Kramer
4c48b2024d Make clever use of alignment and padding to shrink GlobalValue. 
-8 bytes on x86_64, no change on x86.

llvm-svn: 147742
 2012-01-07 21:17:16 +00:00
Benjamin Kramer
0ce9fd3032 Remove VectorExtras. This unused helper was written for a type of API that is discouraged now. 
llvm-svn: 147738
 2012-01-07 19:42:13 +00:00
Benjamin Kramer
b13cdd4879 Port the trick to skip the check for empty buckets from StringMap to DenseMap. 
This should fix the odd behavior that find() is slower than lookup().

llvm-svn: 147731
 2012-01-07 13:12:07 +00:00
Rafael Espindola
2d545fa143 Split Finish into Finish and FinishImpl to have a common place to do end of 
file error checking. Use that to error on an unfinished cfi_startproc.

The error is not nice, but is already better than a segmentation fault.

llvm-svn: 147717
 2012-01-07 03:13:18 +00:00
Evan Cheng
8af07ba749 Added a late machine instruction copy propagation pass. This catches 
opportunities that only present themselves after late optimizations
such as tail duplication .e.g.
## BB#1:
        movl    %eax, %ecx
        movl    %ecx, %eax
        ret

The register allocator also leaves some of them around (due to false
dep between copies from phi-elimination, etc.)

This required some changes in codegen passes. Post-ra scheduler and the
pseudo-instruction expansion passes have been moved after branch folding
and tail merging. They were before branch folding before because it did
not always update block livein's. That's fixed now. The pass change makes
independently since we want to properly schedule instructions after
branch folding / tail duplication.

rdar://10428165
rdar://10640363

llvm-svn: 147716
 2012-01-07 03:02:36 +00:00
Andrew Trick
8a5a1e603e Extended replaceCongruentPhis to handle mixed phi types. 
llvm-svn: 147707
 2012-01-07 01:12:09 +00:00
Andrew Trick
60f6beef61 Expose isNonConstantNegative to users of ScalarEvolution. 
llvm-svn: 147700
 2012-01-07 00:27:31 +00:00
Andrew Trick
d5553c6ad2 Put all IVUsers in the processed set. Allow querying IVUsers with isIVUserOrOperand. 
llvm-svn: 147686
 2012-01-06 21:41:55 +00:00
Benjamin Kramer
509b7e6c60 Kill ObjectCodeEmitter and BinaryObject, they were unused and superseded by MC. 
llvm-svn: 147618
 2012-01-05 22:31:37 +00:00
Danil Malyshev
234aa2c4ea A small re-factored JIT/MCJIT::getPointerToNamedFunction(), so it could be called with the base class. 
llvm-svn: 147610
 2012-01-05 21:16:14 +00:00
Sebastian Pop
53d6e3b9d3 revert r147542 after comments from Joerg Sonnenberger 
llvm-svn: 147608
 2012-01-05 18:28:46 +00:00
Chris Lattner
8a6a27b69a allow clients of SmallSet to specify their own comparison function for the set. 
Patch by Stepan Dyatkovskiy!

llvm-svn: 147607
 2012-01-05 17:35:07 +00:00
Andrew Trick
f4817ef455 comment cleanup 
llvm-svn: 147585
 2012-01-05 01:01:01 +00:00
Jakob Stoklund Olesen
a33612c1f2 Freeze reserved registers before starting register allocation. 
The register allocators don't currently support adding reserved
registers while they are running.  Extend the MRI API to keep track of
the set of reserved registers when register allocation started.

Target hooks like hasFP() and needsStackRealignment() can look at this
set to avoid reserving more registers during register allocation.

llvm-svn: 147577
 2012-01-05 00:26:49 +00:00
Dan Gohman
f9fb5b3951 Generalize isSafeToSpeculativelyExecute to work on arbitrary 
Values, rather than just Instructions, since it's interesting
for ConstantExprs too.

llvm-svn: 147560
 2012-01-04 23:01:09 +00:00
Benjamin Kramer
dfab20fd0c Simplify more DenseMap.find users. 
llvm-svn: 147550
 2012-01-04 21:41:24 +00:00
Benjamin Kramer
15f1af87d2 StringMap.find never points to an empty bucket or tombstone, skip the check. 
llvm-svn: 147546
 2012-01-04 20:45:14 +00:00
Benjamin Kramer
503550b85a Simplify code. No functionality change. 
Using DenseMap iterators isn't free as they have to check for empty
buckets. Dominator queries are common so this gives a minor speedup.

llvm-svn: 147544
 2012-01-04 20:20:08 +00:00
Sebastian Pop
4f82b3a13f use getHostTriple instead of getDefaultTargetTriple in getClosestTargetForJIT 
Get back getHostTriple.

For JIT compilation, use the host triple instead of the default
target: this fixes some JIT testcases that used to fail when the
compiler has been configured as a cross compiler.

llvm-svn: 147542
 2012-01-04 19:47:22 +00:00
Chris Lattner
4f5ba31205 generalize LLVMContext::emitError to take a twine instead of a StringRef. 
llvm-svn: 147501
 2012-01-03 23:47:05 +00:00
Stepan Dyatkovskiy
7d03628e1e Fix for PR11652: assertion failures when Type.cpp is compiled with -Os 
llvm-svn: 147470
 2012-01-03 20:04:35 +00:00
Stepan Dyatkovskiy
7d6561f886 Type: replaced usage of ID with getTypeID(). 
llvm-svn: 147446
 2012-01-03 14:05:04 +00:00
Benjamin Kramer
fba4e88bc2 PatternMatch: Introduce a matcher for instructions with the "exact" bit. Use it to simplify a few matchers. 
llvm-svn: 147403
 2012-01-01 17:55:30 +00:00
Benjamin Kramer
450513861d PatternMatch: Simplify code by reusing the Operator class. 
llvm-svn: 147402
 2012-01-01 17:55:23 +00:00
Rafael Espindola
db7319d272 Implement cfi_restore. Patch by Brian Anderson! 
llvm-svn: 147356
 2011-12-29 21:43:03 +00:00
Rafael Espindola
bc8c3d0ca0 Rename Remember and Restore to RememberState and RestoreState for consistency. 
llvm-svn: 147354
 2011-12-29 21:09:08 +00:00
Rafael Espindola
27298c6f33 Implement .cfi_escape. Patch by Brian Anderson! 
llvm-svn: 147352
 2011-12-29 20:24:47 +00:00
Rafael Espindola
1935193ab7 Fix grammar error noticed by Duncan. 
llvm-svn: 147333
 2011-12-29 02:15:06 +00:00
Nick Lewycky
7425820374 Change CaptureTracking to pass a Use* instead of a Value* when a value is 
captured. This allows the tracker to look at the specific use, which may be
especially interesting for function calls.

Use this to fix 'nocapture' deduction in FunctionAttrs. The existing one does
not iterate until a fixpoint and does not guarantee that it produces the same
result regardless of iteration order. The new implementation builds up a graph
of how arguments are passed from function to function, and uses a bottom-up walk
on the argument-SCCs to assign nocapture. This gets us nocapture more often, and
does so rather efficiently and independent of iteration order.

llvm-svn: 147327
 2011-12-28 23:24:21 +00:00
Benjamin Kramer
77f9c9f719 Switch StringMap from an array of structures to a structure of arrays. 
- -25% memory usage of the main table on x86_64 (was wasted in struct padding).
- no significant performance change.

llvm-svn: 147294
 2011-12-27 20:35:07 +00:00
Rafael Espindola
504588a7a3 Section relative fixups are a coff concept, not a x86 one. Replace the 
x86 specific reloc_coff_secrel32 with a generic FK_SecRel_4.

llvm-svn: 147252
 2011-12-24 14:47:52 +00:00
Rafael Espindola
2fc741dfac Move x86 specific bits of the COFF writer to lib/Target/X86. 
llvm-svn: 147231
 2011-12-24 02:14:02 +00:00
Rafael Espindola
1c25d8bcd4 Define trivial destructor inline. 
llvm-svn: 147230
 2011-12-24 01:53:13 +00:00
Rafael Espindola
fc942cb186 Make GetRelocType pure virtual. 
llvm-svn: 147229
 2011-12-24 01:36:25 +00:00
Mon P Wang
e062e56cab When not destroying the source, the linker is not remapping the types. Added support 
to CloneFunctionInto to allow remapping for this case.

llvm-svn: 147217
 2011-12-23 02:18:32 +00:00
Chris Lattner
c1c640b408 fix typo 
llvm-svn: 147159
 2011-12-22 19:20:51 +00:00
Rafael Espindola
9c71db357e Move PPC bits to lib/Target/PowerPC. 
llvm-svn: 147124
 2011-12-22 01:57:09 +00:00
Akira Hatanaka
e7bcf63d98 Local dynamic TLS model for direct object output. Create the correct TLS MIPS 
ELF relocations.

Patch by Jack Carter.

llvm-svn: 147118
 2011-12-22 01:05:17 +00:00
Rafael Espindola
ee837037ee Move the ARM specific parts of the ELF writer to Target/ARM. 
llvm-svn: 147115
 2011-12-22 00:37:50 +00:00
Lang Hames
4258202987 Fixed typo. 
llvm-svn: 147113
 2011-12-22 00:12:51 +00:00
Jakob Stoklund Olesen
893037ce23 Move common code into an MRI function. 
llvm-svn: 147071
 2011-12-21 19:50:05 +00:00
Manuel Klimek
2147506d8b Changes the JSON parser to use the SourceMgr. 
Diagnostics are now emitted via the SourceMgr and we use MemoryBuffer
for buffer management. Switched the code to make use of the trailing
'0' that MemoryBuffer guarantees where it makes sense.

llvm-svn: 147063
 2011-12-21 18:16:39 +00:00
Rafael Espindola
8c9b0dea02 Move the X86 specific bits of the ELF writer to the Target/X86 directory. 
Other targets will follow shortly.

llvm-svn: 147060
 2011-12-21 17:30:17 +00:00
Rafael Espindola
f9c7f9e3f3 Reduce the exposure of Triple::OSType in the ELF object writer. This will 
avoid including ADT/Triple.h in many places when the target specific bits are
moved.

llvm-svn: 147059
 2011-12-21 17:00:36 +00:00
Rafael Espindola
2334fc676a Add const. 
llvm-svn: 147054
 2011-12-21 14:48:04 +00:00
Jakub Staszak
6f3beda2b4 Add some constantness to BranchProbabilityInfo and BlockFrequnencyInfo. 
llvm-svn: 146986
 2011-12-20 20:03:10 +00:00
Devang Patel
a57e0b8f49 Add support to add named metadata operand. 
Patch by Andrew Wilkins!

llvm-svn: 146984
 2011-12-20 19:29:36 +00:00
Manuel Klimek
94bfd4f3fc Fixes a potential compilation error. 
Pulling the template implementation into the header to guarantee
that it's visible to all possible instantiations.

llvm-svn: 146973
 2011-12-20 11:04:23 +00:00
Manuel Klimek
9661304f32 Pulls the implementation of skip() into JSONParser. 
This is the first step towards migrating more of the parser
implementation into the parser class.

llvm-svn: 146971
 2011-12-20 10:42:52 +00:00