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Author SHA1 Message Date
Daniel Dunbar
5accac5484 llvm-mc: Fix llvm-mc -as-lex. 
llvm-svn: 108644
 2010-07-18 18:31:28 +00:00
Douglas Gregor
083ff2c681 Fix struct/class mismatch 
llvm-svn: 108642
 2010-07-18 11:47:56 +00:00
Owen Anderson
f1ae3b35e7 Add a testcase for r108639. 
llvm-svn: 108640
 2010-07-18 08:57:19 +00:00
Owen Anderson
650babd396 Add a DAGCombine xform to fold away redundant float->double->float conversions around sqrt instructions. 
I am assured by people more knowledgeable than me that there are no rounding issues in eliminating this.

This fixed <rdar://problem/8197504>.

llvm-svn: 108639
 2010-07-18 08:47:54 +00:00
Lang Hames
9b05163138 Added -pbqp-pre-coalescing flag to PBQP. If enabled this will cause PBQP to require 
LoopSplitter be run prior to register allocation.

Entirely for testing purposes at the moment.

llvm-svn: 108634
 2010-07-18 00:57:59 +00:00
Gabor Greif
330a6c1593 fullStopTag cannot happen here, it is handled above 
llvm-svn: 108631
 2010-07-17 20:52:46 +00:00
Duncan Sands
0f6415ef75 Fix what seems like a clear buffer overflow, noticed by cppcheck. 
llvm-svn: 108629
 2010-07-17 20:23:37 +00:00
Bill Wendling
72c0967ce7 Use isPrologLabel() instead of checking the opcode directly. 
llvm-svn: 108628
 2010-07-17 19:18:44 +00:00
Chris Lattner
be480fb7dc the stackifier is global! 
llvm-svn: 108626
 2010-07-17 17:42:04 +00:00
Chris Lattner
dac9788e6b doxygenify some comments. 
llvm-svn: 108625
 2010-07-17 17:40:51 +00:00
Zhongxing Xu
efd94e6909 update CMakeLists.txt 
llvm-svn: 108620
 2010-07-17 12:12:42 +00:00
Lang Hames
611f0fb043 Removed unused inRange variable. 
llvm-svn: 108618
 2010-07-17 11:43:07 +00:00
Lang Hames
ac3a879f12 Switched to array_pod_sort as per Chris's suggestion. 
llvm-svn: 108616
 2010-07-17 09:21:53 +00:00
Lang Hames
48638f63ba LoopSplitter - intended to split live intervals over loop boundaries. 
Still very much under development. Comments and fixes will be forthcoming.

(This commit includes some small tweaks to LiveIntervals & LoopInfo to support the splitter)

llvm-svn: 108615
 2010-07-17 07:34:01 +00:00
Owen Anderson
c8dc055b5e Another attempt at getting the clang self-host to like my instcombine patch. 
llvm-svn: 108614
 2010-07-17 06:56:35 +00:00
Lang Hames
d229cc3cf3 Iterating over sets of pointers in a heuristic was a bad idea. Switching 
any command line paramater changed the register allocation produced by
PBQP.

Turns out variety is not the spice of life.

Fixed some comparators, added others. All good now.

llvm-svn: 108613
 2010-07-17 06:31:41 +00:00
Eli Friedman
e0fd89f780 Start of .sleb128/.uleb128 parsing support. 
llvm-svn: 108612
 2010-07-17 06:27:28 +00:00
Chris Lattner
d5094973a3 unit test to go along with r108610 
llvm-svn: 108611
 2010-07-17 06:14:03 +00:00
Chris Lattner
d2097ce7ab Fix PR7658, a problem where type refinement can trigger 
constant replacement which was botching its handling of
types.  Use of getType() instead of getRawType() was causing
the type map in constant folding to be updated wrong.

llvm-svn: 108610
 2010-07-17 06:13:52 +00:00
Eli Friedman
beee77c1c5 Work-in-progress parsing for ELF .section directive. 
llvm-svn: 108609
 2010-07-17 04:29:04 +00:00
Jim Grosbach
270540da7b Add combiner patterns to more effectively utilize the BFI (bitfield insert) 
instruction for non-constant operands. This includes the case referenced
in the README.txt regarding a bitfield copy.

llvm-svn: 108608
 2010-07-17 03:30:54 +00:00
Eli Friedman
e31ee27cbe Test for ELF .size directive. 
llvm-svn: 108607
 2010-07-17 03:15:24 +00:00
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