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Author SHA1 Message Date
Eli Friedman
e758dc641d Add support for parsing .size directives for ELF. 
llvm-svn: 108606
 2010-07-17 03:09:18 +00:00
Daniel Dunbar
4dca88a1e9 MC/AsmParser: Lift Run() and TargetParser to base class. 
Also, add constructor function for creating AsmParser instances.

llvm-svn: 108604
 2010-07-17 02:26:10 +00:00
Jim Grosbach
e52a4aff12 add BFI to getTargetNodeName() 
llvm-svn: 108603
 2010-07-17 01:50:57 +00:00
Jim Grosbach
5e095020ae Fix logic think-o 
llvm-svn: 108601
 2010-07-17 01:22:19 +00:00
Eric Christopher
00b8fa89c8 Remove unnecessary check that was subsumed into canRealignStack. 
llvm-svn: 108588
 2010-07-17 00:33:04 +00:00
Eric Christopher
b397b001b9 Propagate alloca alignment information via variable size object frame 
information.

No functional change yet.

llvm-svn: 108583
 2010-07-17 00:28:22 +00:00
Eric Christopher
033201e862 Make more explicit and add some currently disabled error messages for 
stack realignment on ARM.

Also check for function attributes as we do on X86 as well as
make explicit that we're checking can as well as needs in this function.

llvm-svn: 108582
 2010-07-17 00:27:24 +00:00
Eric Christopher
cfd5cd156c Make comment a bit more clear as well as return statement since 
needsStackRealignment is currently checking the can conditions as well.

llvm-svn: 108581
 2010-07-17 00:25:41 +00:00
Bill Wendling
16742654a6 Update comment. 
llvm-svn: 108571
 2010-07-16 23:10:00 +00:00
Jim Grosbach
749f4fca0a Add basic support to code-gen the ARM/Thumb2 bit-field insert (BFI) instruction 
and a combine pattern to use it for setting a bit-field to a constant
value. More to come for non-constant stores.

llvm-svn: 108570
 2010-07-16 23:05:05 +00:00
Dan Gohman
820e65129a Fix whitespace. 
llvm-svn: 108569
 2010-07-16 22:58:39 +00:00
Bill Wendling
85d6ed81b7 Consider this function: 
void foo() { __builtin_unreachable(); }

It will output the following on Darwin X86:

_func1:
Leh_func_begin0:
        pushq %rbp
Ltmp0:
        movq %rsp, %rbp
Ltmp1:
Leh_func_end0:

This prolog adds a new Call Frame Information (CFI) row to the FDE with an
address that is not within the address range of the code it describes -- part is
equal to the end of the function -- and therefore results in an invalid EH
frame. If we emit a nop in this situation, then the CFI row is now within the
address range.

llvm-svn: 108568
 2010-07-16 22:51:10 +00:00
Jakob Stoklund Olesen
44949b2e1b Remove the isMoveInstr() hook. 
llvm-svn: 108567
 2010-07-16 22:35:46 +00:00
Jakob Stoklund Olesen
24994a5d4c Avoid isMoveInstr when printing XCore pseudo-moves. 
llvm-svn: 108566
 2010-07-16 22:35:37 +00:00
Jakob Stoklund Olesen
c73aa71e90 Use MI.isCopy. 
llvm-svn: 108565
 2010-07-16 22:35:34 +00:00
Jakob Stoklund Olesen
d073973e61 Use a small local function for a single remaining late isMoveInstr call in 
Thumb2ITBlockPass.

llvm-svn: 108564
 2010-07-16 22:35:32 +00:00
Bill Wendling
e2833a21c2 Rename DBG_LABEL PROLOG_LABEL, because it's only used during prolog emission and 
thus is a much more meaningful name.

llvm-svn: 108563
 2010-07-16 22:20:36 +00:00
Jakob Stoklund Olesen
41b1ea4fc9 Keep valgrind quiet. 
The isLive() method can read uninitialized memory, but it still gives correct
results.

llvm-svn: 108561
 2010-07-16 22:00:33 +00:00
Chris Lattner
02dc24e49a tidy up 
llvm-svn: 108560
 2010-07-16 21:20:46 +00:00
Jakob Stoklund Olesen
1fb08e33b9 Remove remaining calls to TII::isMoveInstr. 
llvm-svn: 108556
 2010-07-16 21:03:55 +00:00
Jakob Stoklund Olesen
9521e574f8 Emit COPY instead of FMR/FMSD instructions for floating point conversion on 
PowerPC.

llvm-svn: 108555
 2010-07-16 21:03:52 +00:00
Chris Lattner
663dd0eb36 eliminate unlockedRefineAbstractTypeTo, types are all per-llvmcontext, 
so there is no locking involved in type refinement.

llvm-svn: 108553
 2010-07-16 20:50:13 +00:00
Gabor Greif
4121df768b get the first few tags from a precomputed table (count can be increased if desired) 
llvm-svn: 108549
 2010-07-16 20:35:19 +00:00
Eli Friedman
616313e9c6 Add missing attributes to cpp backend. 
llvm-svn: 108547
 2010-07-16 18:47:20 +00:00
Dale Johannesen
80b46398ab Accept registers with P modifier. PR 5314. 
llvm-svn: 108545
 2010-07-16 18:35:46 +00:00
Dan Gohman
f4d2b52ffe Make llvm-bcanalyzer print out the full enum name for all metadata 
code ids, not just some of them.

llvm-svn: 108543
 2010-07-16 18:28:07 +00:00
Jakob Stoklund Olesen
701cbc5c89 Teach PPCInstrInfo::storeRegToStackSlot and loadRegFromStackSlot to add memory 
operands.

Hopefully this fixes the llvm-gcc-powerpc-darwin9 buildbot. It really shouldn't
since missing memoperands should not affect correctness.

llvm-svn: 108540
 2010-07-16 18:22:00 +00:00
Dan Gohman
b5593f8fda Reorder the contents of various getAnalysisUsage functions, eliminating 
a redundant loopsimplify run from the default -O2 sequence.

llvm-svn: 108539
 2010-07-16 17:58:45 +00:00
Dan Gohman
444c76a3b1 Revert r108369, sorting llvm.dbg.declare information by source position, 
since it doesn't work for front-ends which don't emit column information
(which includes llvm-gcc in its present configuration), and doesn't
work for clang for K&R style variables where the variables are declared
in a different order from the parameter list.

Instead, make a separate pass through the instructions to collect the
llvm.dbg.declare instructions in order. This ensures that the debug
information for variables is emitted in this order.

llvm-svn: 108538
 2010-07-16 17:54:27 +00:00
Jakob Stoklund Olesen
858d6bb512 Remove the X86::FP_REG_KILL pseudo-instruction and the X86FloatingPointRegKill 
pass that inserted it.

It is no longer necessary to limit the live ranges of FP registers to a single
basic block.

llvm-svn: 108536
 2010-07-16 17:41:44 +00:00
Jakob Stoklund Olesen
5fbe7d869c Search for a free FP register instead of just assuming FP7 is not in use. 
llvm-svn: 108535
 2010-07-16 17:41:40 +00:00
Owen Anderson
ca2a306a1a Remove the rest of my instcombine changes. Back to the drawing board on this one. 
llvm-svn: 108530
 2010-07-16 16:39:00 +00:00
Jakob Stoklund Olesen
d578c5af7e Allow x87 FP registers to be alive globally in a function. 
FP_REG_KILL instructions are still inserted, but can be disabled by passing
-live-x87 to llc. The X87FPRegKillInserterPass is going to be removed shortly.

CFG edges are partioned into bundles where the x87 stack must be allocated
identically. Code is insertad at the end of each basic block that shuffles the
live FP registers to match the outgoing bundles expectations.

This fix is in preparation for some upcoming register allocator improvements
that may extend the live range of registers beyond a basic block, similar to
LICM. It also provides a nice runtime speedup if you are building with
-mfpmath=387.

llvm-svn: 108529
 2010-07-16 16:38:12 +00:00
Douglas Gregor
9101acaab9 Remove extraneous semicolons after member functions 
llvm-svn: 108525
 2010-07-16 15:03:23 +00:00
Benjamin Kramer
710832b0e6 Feed the right output into FileCheck. 
llvm-svn: 108523
 2010-07-16 10:58:02 +00:00
Gabor Greif
17c48ecd68 eliminate CallInst::ArgOffset 
llvm-svn: 108522
 2010-07-16 09:38:02 +00:00
Eli Friedman
a0458f78a8 Get rid of a bunch of duplicated ELF enum values. 
llvm-svn: 108520
 2010-07-16 07:53:29 +00:00
Eli Friedman
b777182abe A few more minor additions to ELF.h. 
llvm-svn: 108519
 2010-07-16 07:48:07 +00:00
Eric Christopher
9098774a2e Remove bogus link. 
llvm-svn: 108518
 2010-07-16 06:33:36 +00:00
Nick Lewycky
1b4a83430b Arrays and vectors with different numbers of elements are not equivalent. 
llvm-svn: 108517
 2010-07-16 06:31:12 +00:00
Eric Christopher
00c613aebe Remove unnecessary conditional. 
llvm-svn: 108516
 2010-07-16 06:13:24 +00:00
Tobias Grosser
9c86be4570 LoopSimplify does not update domfrontier correctly. 
This fixes PR7649.

llvm-svn: 108513
 2010-07-16 05:59:45 +00:00
Tobias Grosser
97dc00d1d8 Add dump() to DominanceFrontier 
llvm-svn: 108512
 2010-07-16 05:59:39 +00:00
Jakob Stoklund Olesen
bcee53a2b8 Remove many calls to TII::isMoveInstr. Targets should be producing COPY anyway. 
TII::isMoveInstr is going tobe completely removed.

llvm-svn: 108507
 2010-07-16 04:45:42 +00:00
Jakob Stoklund Olesen
114bab20ae Add forgotten test case. 
llvm-svn: 108506
 2010-07-16 04:45:35 +00:00
Dan Gohman
5e485c833f Use the source-order scheduler instead of the "fast" scheduler at -O0, 
because it's more likely to keep debug line information in its original
order.

llvm-svn: 108496
 2010-07-16 02:01:19 +00:00
Daniel Dunbar
b55ca8e447 build/Darwin: Add an LLVM_LTO_VERSION_OFFSET make variable to allow offsetting 
the libLTO library version from the actual build version.

llvm-svn: 108495
 2010-07-16 01:41:38 +00:00
Eric Christopher
5eef314caf Also revert 108422, it's causing some test failures. 
Working on testcases for Owen.

llvm-svn: 108494
 2010-07-16 01:36:12 +00:00
Daniel Dunbar
bf6ad6f06f build/Clang: Build and install libLTO as part of clang-only/install-clang targets. 
llvm-svn: 108493
 2010-07-16 01:29:50 +00:00
Dan Gohman
39c67ace89 Fix this test. 
llvm-svn: 108491
 2010-07-16 01:28:45 +00:00