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Author SHA1 Message Date
Duncan Sands
12513889fd Avoid a warning "'U' might be used uninitialized in 
this function" when using a not-too-smart compiler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72768 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-03 12:05:18 +00:00
Duncan Sands
05a8c87bb2 At a newline at the end of this file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72767 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-03 11:54:28 +00:00
Jay Foad
d244909b76 Document how phi and invoke instructions interact with SSA form. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72762 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-03 10:20:10 +00:00
Evan Cheng
2c48fe6757 Fix for PR4225: When rewriter reuse a value in a physical register , it clear the register kill operand marker and its kill ops information. However, the cleared operand may be a def of a super-register. Clear the kill ops info for the super-register's sub-registers as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72758 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-03 09:00:27 +00:00
Evan Cheng
70fd60bd57 Temporarily revert 72756 for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72757 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-03 07:40:47 +00:00
Evan Cheng
9d5fb981b0 Fold preceding / trailing base inc / dec into the single load / store as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72756 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-03 06:14:58 +00:00
Evan Cheng
95299c194d If there is a def of a super-register followed by a use of a sub-register, do *not* add an implicit def of the sub-register. e.g. 
EAX = ..., AX<imp-def>
...
    = AX

This creates a double-def. Apparently this used to be necessary but is no longer needed.

Thanks to Anton for pointing this out. Anton, I cannot create a test case without your uncommitted ARM patches. Please check in a test case for me.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72755 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-03 05:15:46 +00:00
Bruno Cardoso Lopes
a321dcd38d Move structures and classes into header files, providing two new headers and 
one new .cpp file, in preparation for merging in the Direct Object Emission
changes we're working on. No functional changes.
Fixed coding style issues on the original patch. Patch by Aaron Gray


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72754 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-03 03:43:31 +00:00
Dan Gohman
6ecc2602a6 Revert r72734. The Darwin assembler doesn't support the static 
relocation model on x86-64. Higher level logic should override
the relocation model to PIC on x86_64-apple-darwin.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72746 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-03 00:37:20 +00:00
Dan Gohman
b3ae97cffe Change TargetFolder's TD member from a reference to a 
pointer, now that ConstantFoldConstantExpression can
accept a null TargetData pointer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72744 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-03 00:13:48 +00:00
Dan Gohman
7714285efd Change ConstantFoldConstantExpression to accept a null 
TargetData pointer. The only thing it's used for are
calls to ConstantFoldCompareInstOperands and
ConstantFoldInstOperands, which both already accept a
null TargetData pointer. This makes
ConstantFoldConstantExpression easier to use in clients
where TargetData is optional.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72741 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-02 21:48:15 +00:00
Dan Gohman
014d53595c Delete an unnecessary forward declaration. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72740 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-02 21:37:43 +00:00
Dan Gohman
8b0d4f61bb Fix CodeGenPrepare's address-mode sinking to handle unusual 
addresses, involving Base values which do not have Pointer type.
This fixes PR4297.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72739 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-02 21:29:13 +00:00
Daniel Dunbar
f5a595024f NightlyTest: Stop running a separate Olden pass during nightly test. 
- Unless I'm mistaken, these results weren't even being reported and just
   served to clobber the previous build products and waste cycles.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72738 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-02 21:14:15 +00:00
Torok Edwin
23e1e727bd fix build on VC++2k8. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72736 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-02 20:32:59 +00:00
Lang Hames
7ccf4a05e8 Fixed warning, removed some temporary validation code that snuck in during my last commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72735 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-02 20:30:03 +00:00
Evan Cheng
da9863fa41 On Darwin x86_64 small code model doesn't guarantee code address fits in 32-bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72734 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-02 20:09:31 +00:00
Owen Anderson
d8cf40372e Undef MemoryFence when compiling on MSVC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72732 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-02 17:35:55 +00:00
Devang Patel
8900bcc1ff Simplify assertion message to avoid confusion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72731 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-02 17:26:29 +00:00
Lang Hames
f41538d1b5 Update to in-place spilling framework. Includes live interval scaling and trivial rewriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72729 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-02 16:53:25 +00:00
Dale Johannesen
874ae251c3 Revert 72707 and 72709, for the moment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72712 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-02 03:12:52 +00:00
Evan Cheng
5d16396a33 Avoid infinite looping in AllGlobalLoadUsesSimpleEnoughForHeapSRA(). This can happen when PHI uses are recursively dependent on each other. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72710 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-02 00:56:07 +00:00
Dale Johannesen
ca46fdd284 Add missing file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72709 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-01 23:48:58 +00:00
Nick Kledzik
4bdf73025a update comments about .objc_ symbols being generated 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72708 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-01 23:41:09 +00:00
Dale Johannesen
4150d83abe Make the implicit inputs and outputs of target-independent 
ADDC/ADDE use MVT::i1 (later, whatever it gets legalized to)
instead of MVT::Flag.  Remove CARRY_FALSE in favor of 0; adjust
all target-independent code to use this format.

Most targets will still produce a Flag-setting target-dependent
version when selection is done.  X86 is converted to use i32
instead, which means TableGen needs to produce different code
in xxxGenDAGISel.inc.  This keys off the new supportsHasI1 bit
in xxxInstrInfo, currently set only for X86; in principle this
is temporary and should go away when all other targets have
been converted.  All relevant X86 instruction patterns are
modified to represent setting and using EFLAGS explicitly.  The
same can be done on other targets.

The immediate behavior change is that an ADC/ADD pair are no
longer tightly coupled in the X86 scheduler; they can be
separated by instructions that don't clobber the flags (MOV).
I will soon add some peephole optimizations based on using
other instructions that set the flags to feed into ADC.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72707 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-01 23:27:20 +00:00
Dale Johannesen
8313899851 Comment grammaro/clarification. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72706 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-01 23:13:42 +00:00
Dale Johannesen
69bbb4cd39 Trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72705 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-01 23:12:52 +00:00
Mike Stump
6330084a66 Dcoument that the opauque value used to construct QNaNs is truncated 
as necessary.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72702 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-01 21:02:35 +00:00
Nick Kledzik
3eb445feb2 <rdar://problem/6927148> libLTO needs to handle i386 magic objc class symbols 
Parse __OBJC data structures and synthesize magic .objc_ symbols.
Also, alter mangler so that objc method names are readable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72700 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-01 20:33:09 +00:00
Bill Wendling
8fff19ba55 Accidental commit. This isn't ready for prime time just yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72699 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-01 20:18:46 +00:00
Anton Korobeynikov
70459bef9c Implement review feedback. Make thumb2 'normal' subtarget feature 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72698 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-01 20:00:48 +00:00
Bruno Cardoso Lopes
434dd4fd94 Fix new CodeEmitter stuff to follow LLVM codying style. Patch by Aaron Gray 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72697 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-01 19:57:37 +00:00
Anton Korobeynikov
d260c248ab Do not emit "generic" CPU string. This fixes PR4291. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72696 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-01 19:03:17 +00:00
Eli Friedman
41b33f437f PR4286: Make RewriteLoadUserOfWholeAlloca and 
RewriteStoreUserOfWholeAlloca deal with tail padding because 
isSafeUseOfBitCastedAllocation expects them to.  Otherwise, we crash 
trying to erase the bitcast.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72688 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-01 09:14:32 +00:00
Nick Lewycky
3728a02534 Update the bitcode reader to support reading .bc files where the embedded 
metadata references non-Constant values such as instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72685 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-01 04:42:10 +00:00
Nick Lewycky
079c034489 Add missing codenames to the .bc analyzer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72684 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-06-01 04:41:03 +00:00
Dan Gohman
2d98f0664b Fix a grammaro and clarify a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72668 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-31 17:52:18 +00:00
Dan Gohman
18a69c5a36 Delete an obsolete sentance from a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72667 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-31 16:18:57 +00:00
Dan Gohman
55b42513e1 Fix the name of the function in this comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72666 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-31 16:18:03 +00:00
Owen Anderson
88554df4a2 Be more aggressive in doing LoadPRE by tracing backwards when a block only has 
a single predecessor.

Patch by Jakub Staszak.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72661 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-31 09:03:40 +00:00
Nick Lewycky
88b7293f49 Fix typo in error message. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72659 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-31 06:07:28 +00:00
Duncan Sands
f43071bedd Rename CustomLowerResults to CustomLowerNode, since 
it is used both when a result is illegal and when an
operand is illegal.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72658 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-31 04:15:38 +00:00
Bruno Cardoso Lopes
af90a1cd26 Use uint8_t and int32_t in {JIT,Machine}CodeEmiters 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72650 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-30 23:50:33 +00:00
Bruno Cardoso Lopes
cc5fc60468 Add AMD64 elf machine type 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72635 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-30 21:05:47 +00:00
Bruno Cardoso Lopes
a3f99f9033 First patch in the direction of splitting MachineCodeEmitter in two subclasses: 
JITCodeEmitter and ObjectCodeEmitter. No functional changes yet. Patch by Aaron Gray



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72631 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-30 20:51:52 +00:00
Chris Lattner
0e98e4d299 fix PR4284, a bug in simplifylibcalls handling memcmp. Patch by 
Benjamin Kramer!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72625 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-30 18:43:04 +00:00
Nick Lewycky
1e8c7a687d Metadata uses metadata type not empty struct. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72623 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-30 16:08:30 +00:00
Mike Stump
7d36d39e63 Add some documentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72622 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-30 15:19:29 +00:00
Duncan Sands
46c403d815 Adjust these tests now that "extern inline" 
functions are being output with bodies and
available_externally linkage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72620 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-30 13:57:05 +00:00
Evan Cheng
cf7895ff8b (i64 (zext (srl GR32 8))) -> movzbl AH is not safe since srl 8 only clear the top 8 bits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72618 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-05-30 08:43:27 +00:00