llvm-svn: 172312

llvm-svn: 172299

llvm-svn: 172298

I give up trying to get all of the settings into COMMON_MAKEFLAGS, so just
do the easy thing and repeat the ones with interesting quoting issues
in each make command.

llvm-svn: 172296

Fixed bug in ObjCARC where we were changing a call from objc_autoreleaseRV => objc_autorelease but were not updating the InstructionClass to IC_Autorelease.

llvm-svn: 172288

Fixed a bug where we were tail calling objc_autorelease causing an object to not be placed into an autorelease pool.

The reason that this occurs is that tail calling objc_autorelease eventually
tail calls -[NSObject autorelease] which supports fast autorelease. This can
cause us to violate the semantic gaurantees of __autoreleasing variables that
assignment to an __autoreleasing variables always yields an object that is
placed into the innermost autorelease pool.

The fix included in this patch works by:

1. In the peephole optimization function OptimizeIndividualFunctions, always
remove tail call from objc_autorelease.
2. Whenever we convert to/from an objc_autorelease, set/unset the tail call
keyword as appropriate.

*NOTE* I also handled the case where objc_autorelease is converted in
OptimizeReturns to an autoreleaseRV which still violates the ARC semantics. I
will be removing that in a later patch and I wanted to make sure that the tree
is in a consistent state vis-a-vis ARC always.

Additionally some test cases are provided and all tests that have tail call marked
objc_autorelease keywords have been modified so that tail call has been removed.

*NOTE* One test fails due to a separate bug that I am going to commit soon. Thus
I marked the check line TMP: instead of CHECK: so make check does not fail.

llvm-svn: 172287

register names in the standalone assembler llvm-mc.

Registers such as $A1 can represent either a 32 or
64 bit register based on the instruction using it.
In addition, based on the abi, $T0 can represent different
32 bit registers.


The problem is resolved by the Mips specific AsmParser 
td definitions changing to work together. Many cases of
RegisterClass parameters are now RegisterOperand.


Contributer: Vladimir Medic
llvm-svn: 172284

When tryEvict() is looking for a cheaper register in the allocation
order, skip the tail of too expensive registers when possible.

llvm-svn: 172281

Remember the minimum cost of the registers in an allocation order and
the number of registers at the end of the allocation order that have the
same cost per use.

This information can be used to limit the search space for
RAGreedy::tryEvict() when looking for a cheaper register.

llvm-svn: 172280

llvm-svn: 172277

The MCAsmParser interface defines ParseIdentifier is public. There's no reason
whatsoever for AsmParser (which implements the MCAsmParser interface) to hide
this method.

This is all part of a bigger scheme. Several asm parsing "extensions" use the
main parser properly through the MCAsmParser interface. However,
GenericAsmParser has much more exclusive access and uses implementation details
from the concrete implementation - AsmParser, in which it is also declared as
a friend. This makes for overly coupled code, and even makes it hard to split
GenericAsmParser into a separate file. There's no reason why GenericAsmParser
shouldn't be able to access AsmParser through an abstract interface, as long
as it's actually registered as an extension.

llvm-svn: 172276

llvm-svn: 172271

llvm-svn: 172269

GenericAsmParser extension, where a lot of directives are already being parsed.
The end goal is having just a single place (and a single lookup table) for
all directive parsing.

llvm-svn: 172268

Adds a check for -Oz, changes the code to not re-visit BBs,
and skips over DBG_VALUE instrs.

Patch by Andy Zhang.

llvm-svn: 172258

llvm-svn: 172248

Specifically:
1. Added a missing new line when we emit a debug message saying that we are marking a global variable as constant.
2. Added debug messages that describe what is occuring when GlobalOpt is evaluating a block/function.
3. Added a debug message that says what specific constructor is being evaluated.

llvm-svn: 172247

This fixes some of the cycles between libCodeGen and libSelectionDAG. It's still
a complete mess but as long as the edges consist of virtual call it doesn't
cause breakage. BasicTTI did static calls and thus broke some build
configurations.

llvm-svn: 172246

the target if it supports the different CAST types. We didn't do this
on X86 because of the different register sizes and types, but on ARM
this makes sense.

llvm-svn: 172245

llvm-svn: 172235

Target Feature Matrix, and update the PTX column with this new category.

llvm-svn: 172234

- recognize string "{memory}" in the MI generation
- mark as mayload/maystore when there's a memory clobber constraint.

PR14859.

Patch by Krzysztof Parzyszek

llvm-svn: 172228

llvm-svn: 172224

llvm-svn: 172223

llvm-svn: 172222

-dot-callgraph similarly follows a standard module pass pattern.

Patch by Speziale Ettore!

llvm-svn: 172220

Patch by Michael Muller.

llvm-svn: 172214

This removes previous special cases for each floating-point type in favour of a
shared codepath.

llvm-svn: 172189

Example:
>DATA bin/clang 0x26e8e40
<llvm::SparcSubTypeKV
<40799808 416
The last line is address and size of the object.

llvm-svn: 172180

ARM Cost Model:  We need to detect the max bitwidth of types in the loop in order to select the max vectorization factor.
We don't have a detailed analysis on which values are vectorized and which stay scalars in the vectorized loop so we use
another method. We look at reduction variables, loads and stores, which are the only ways to get information in and out
of loop iterations. If the data types are extended and truncated then the cost model will catch the cost of the vector
zext/sext/trunc operations.

llvm-svn: 172178

llvm-svn: 172172

This commit is a 4x squash commit consisting of 4x functions converted to use FileCheck instead of grep.

Messages:
Converted test case trivial_codegen_tailcall.ll to use FileCheck.
Converted test return_constant.ll to use FileCheck instead of grep.
Converted test reorder_load.ll to use FileCheck instead of grep.
Converted test intervening-inst.ll to use FileCheck instead of grep.

llvm-svn: 172171

Revert r172153, "llvm/lib/MC/MCParser/AsmParser.cpp: [ms-inline-asm] Fix a couple of undefined behaviors. Operand->needAddressOf() is not initialized at !Operand->isReg()."

It has been redundant since r172157.

llvm-svn: 172166

Right now, only OS X has a way to determine the column width of a string
(PR14910). Until we have a good way to deal with this, we just won't
print carets, source ranges, or fixits for SMDiagnostic if the source line
has multibyte characters in it.

llvm-svn: 172164

Before we learned about :doc:, we used :ref: and put a dummy link at the
top of each page. Don't do that anymore.

This fixes PR14891 as a special case.

llvm-svn: 172162

PR14890

llvm-svn: 172160

llvm-svn: 172159

llvm-svn: 172157

supported.

llvm-svn: 172156

llvm-svn: 172155