oota-llvm.git
12 years agofix warning
Sebastian Pop [Fri, 12 Oct 2012 02:04:32 +0000 (02:04 +0000)]
fix warning

DependenceAnalysis.cpp:1164:32: warning: implicit truncation from 'int' to bitfield changes value from -5 to 3
      [-Wconstant-conversion]
    Result.DV[Level].Direction &= ~Dependence::DVEntry::GT;
                               ^  ~~~~~~~~~~~~~~~~~~~~~~~~

Patch from Preston Briggs <preston.briggs@gmail.com>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165784 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoDiv, Rem int/unsigned int
Reed Kotler [Fri, 12 Oct 2012 02:01:09 +0000 (02:01 +0000)]
Div, Rem int/unsigned int

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165783 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agodocs: Update example to conform to coding standards.
Sean Silva [Fri, 12 Oct 2012 01:55:51 +0000 (01:55 +0000)]
docs: Update example to conform to coding standards.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165782 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoMark function as 'used' so that LTO doesn't try to get rid of it.
Bill Wendling [Fri, 12 Oct 2012 01:44:08 +0000 (01:44 +0000)]
Mark function as 'used' so that LTO doesn't try to get rid of it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165781 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRevert r165777, "Mark function as 'used' so that LTO doesn't try to get rid of it."
NAKAMURA Takumi [Fri, 12 Oct 2012 01:34:07 +0000 (01:34 +0000)]
Revert r165777, "Mark function as 'used' so that LTO doesn't try to get rid of it."

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165780 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agodocs: Minor clean up of Phabricator documentation.
Sean Silva [Fri, 12 Oct 2012 01:21:24 +0000 (01:21 +0000)]
docs: Minor clean up of Phabricator documentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165779 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoLegalizer optimize a pair of div / mod to a call to divrem libcall if they are
Evan Cheng [Fri, 12 Oct 2012 01:15:47 +0000 (01:15 +0000)]
Legalizer optimize a pair of div / mod to  a call to divrem libcall if they are
not legal. However, it should use a div instruction + mul + sub if divide is
legal. The rem legalization code was missing a check and incorrectly uses a
divrem libcall even when div is legal.

rdar://12481395

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165778 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoMark function as 'used' so that LTO doesn't try to get rid of it.
Bill Wendling [Fri, 12 Oct 2012 01:15:17 +0000 (01:15 +0000)]
Mark function as 'used' so that LTO doesn't try to get rid of it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165777 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoWe need this symbol after an LTO build.
Bill Wendling [Fri, 12 Oct 2012 01:06:33 +0000 (01:06 +0000)]
We need this symbol after an LTO build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165776 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agodocs: Add SphinxQuickstartTemplate.rst.
Sean Silva [Fri, 12 Oct 2012 00:53:48 +0000 (00:53 +0000)]
docs: Add SphinxQuickstartTemplate.rst.

The intent of this document is to be the go-to document for anybody who
wants to write new documentation, but isn't familiar with Sphinx.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165775 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agodocs: Improve HowToSetUpLLVMStyleRTTI.
Sean Silva [Thu, 11 Oct 2012 23:30:52 +0000 (23:30 +0000)]
docs: Improve HowToSetUpLLVMStyleRTTI.

* Fix confusing explanation regarding abstract classes.

* Clarify auto-upcasting and why `Shape` doesn't need a `classof()`.

* Add section `Rules of Thumb` with some quick summary tips.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165768 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove unnecessary classof()'s
Sean Silva [Thu, 11 Oct 2012 23:30:49 +0000 (23:30 +0000)]
Remove unnecessary classof()'s

isa<> et al. automatically infer when the cast is an upcast (including a
self-cast), so these are no longer necessary.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165767 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agodocs: Update HowToSetUpLLVMStyleRTTI.
Sean Silva [Thu, 11 Oct 2012 23:30:41 +0000 (23:30 +0000)]
docs: Update HowToSetUpLLVMStyleRTTI.

Recent changes to isa<>/dyn_cast<> have made unnecessary those classof()
of the form:

    static bool classof(const Foo *) { return true; }

Accordingly, remove mention of such classof() from the documentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165766 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoCasting.h: Automatically handle isa<Base>(Derived).
Sean Silva [Thu, 11 Oct 2012 23:30:40 +0000 (23:30 +0000)]
Casting.h: Automatically handle isa<Base>(Derived).

Additionally, all such cases are handled with no dynamic check.

All `classof()` of the form

    class Foo {
      [...]
      static bool classof(const Bar *) { return true; }
      [...]
    }

where Foo is an ancestor of Bar are no longer necessary.
Don't write them!

Note: The exact test is `is_base_of<Foo, Bar>`, which is non-strict, so
that Foo is considered an ancestor of itself.

This leads to the following rule of thumb for LLVM-style RTTI:

    The argument type of `classof()` should be a strict ancestor.

For more information about implementing LLVM-style RTTI, see
docs/HowToSetUpLLVMStyleRTTI.rst

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165765 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove buggy classof().
Sean Silva [Thu, 11 Oct 2012 23:30:38 +0000 (23:30 +0000)]
Remove buggy classof().

This classof() is effectively saying that a MachineCodeEmitter "is-a"
JITEmitter, but JITEmitter is in fact a descendant of
MachineCodeEmitter, so this is not semantically correct. Consequently,
none of the assertions that rely on these classof() actualy check
anything.

Remove the RTTI (which didn't actually check anything) and use
static_cast<> instead.

Post-Mortem Bug Analysis
========================

Cause of the bug
----------------

r55022 appears to be the source of the classof() and assertions removed
by this commit. It aimed at removing some dynamic_cast<> that were
solely in the assertions. A typical diff hunk from that commit looked
like:

  -  assert(dynamic_cast<JITEmitter*>(MCE) && "Unexpected MCE?");
  -  JITEmitter *JE = static_cast<JITEmitter*>(getCodeEmitter());
  +  assert(isa<JITEmitter>(MCE) && "Unexpected MCE?");
  +  JITEmitter *JE = cast<JITEmitter>(getCodeEmitter());

Hence, the source of the bug then seems to be an attempt to replace
dynamic_cast<> with LLVM-style RTTI without properly setting up the
class hierarchy for LLVM-style RTTI. The bug therefore appears to be
simply a "thinko".

What initially indicated the presence of the bug
------------------------------------------------

After implementing automatic upcasting for isa<>, classof() functions of
the form

  static bool classof(const Foo *) { return true; }

were removed, since they only serve the purpose of optimizing
statically-OK upcasts. A subsequent recompilation triggered a build
failure on the isa<> tests within the removed asserts, since the
automatic upcasting (correctly) failed to substitute this classof().

Key to pinning down the root cause of the bug
---------------------------------------------

After being alerted to the presence of the bug, some thought about the
semantics which were being asserted by the buggy classof() revealed that
it was incorrect.

How the bug could have been prevented
-------------------------------------

This bug could have been prevented by better documentation for how to
set up LLVM-style RTTI. This should be solved by the recently added
documentation HowToSetUpLLVMStyleRTTI. However, this bug suggests that
the documentation should clearly explain the contract that classof()
must fulfill. The HowToSetUpLLVMStyleRTTI already explains this
contract, but it is a little tucked away. A future patch will expand
that explanation and make it more prominent.

There does not appear to be a simple way to have the compiler prevent
this bug, since fundamentally it boiled down to a spurious classof()
where the programmer made an erroneous statement about the conversion.
This suggests that perhaps the interface to LLVM-style RTTI of classof()
is not the best. There is already some evidence for this, since in a
number of places Clang has classof() forward to classofKind(Kind K)
which evaluates the cast in terms of just the Kind. This could probably
be generalized to simply a `static const Kind MyKind;` field in leaf
classes and `static const Kind firstMyKind, lastMyKind;` for non-leaf
classes, and have the rest of the work be done inside Casting.h,
assuming that the Kind enum is laid out in a preorder traversal of the
inheritance tree.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165764 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoPGO: create metadata for switch only if it has more than one targets.
Manman Ren [Thu, 11 Oct 2012 22:28:34 +0000 (22:28 +0000)]
PGO: create metadata for switch only if it has more than one targets.

When all cases of a switch statement are dead, the weights vector only has one
element, and we will get an ssertion failure when calling createBranchWeights.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165759 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove extra semicolon.
Chad Rosier [Thu, 11 Oct 2012 22:26:44 +0000 (22:26 +0000)]
Remove extra semicolon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165758 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove extra semicolons.
Chad Rosier [Thu, 11 Oct 2012 22:25:56 +0000 (22:25 +0000)]
Remove extra semicolons.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165757 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix some typos 165739, spotted by Duncan.
Jan Wen Voung [Thu, 11 Oct 2012 21:45:16 +0000 (21:45 +0000)]
Fix some typos 165739, spotted by Duncan.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165753 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRevert 165732 for further review.
Micah Villmow [Thu, 11 Oct 2012 21:27:41 +0000 (21:27 +0000)]
Revert 165732 for further review.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165747 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoChange encoding of instruction operands in bitcode binaries to be relative
Jan Wen Voung [Thu, 11 Oct 2012 20:20:40 +0000 (20:20 +0000)]
Change encoding of instruction operands in bitcode binaries to be relative
to the instruction position.  The old encoding would give an absolute
ID which counts up within a function, and only resets at the next function.

I.e., Instead of having:

... = icmp eq i32 n-1, n-2
br i1 ..., label %bb1, label %bb2

it will now be roughly:

... = icmp eq i32 1, 2
br i1 1, label %bb1, label %bb2

This makes it so that ids remain relatively small and can be encoded
in fewer bits.

With this encoding, forward reference operands will be given
negative-valued IDs.  Use signed VBRs for the most common case
of forward references, which is phi instructions.

To retain backward compatibility we bump the bitcode version
from 0 to 1 to distinguish between the different encodings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165739 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdds Phabricator documentation. This is a first step that answers many questions...
Manuel Klimek [Thu, 11 Oct 2012 19:40:46 +0000 (19:40 +0000)]
Adds Phabricator documentation. This is a first step that answers many questions we have seen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165736 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd in the first iteration of support for llvm/clang/lldb to allow variable per addre...
Micah Villmow [Thu, 11 Oct 2012 17:21:41 +0000 (17:21 +0000)]
Add in the first iteration of support for llvm/clang/lldb to allow variable per address space pointer sizes to be optimized correctly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165726 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoPass an explicit operand number to addLiveIns.
Jakob Stoklund Olesen [Thu, 11 Oct 2012 16:46:07 +0000 (16:46 +0000)]
Pass an explicit operand number to addLiveIns.

Not all instructions define a virtual register in their first operand.
Specifically, INLINEASM has a different format.

<rdar://problem/12472811>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165721 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoThis patch addresses PR13947.
Bill Schmidt [Thu, 11 Oct 2012 15:38:20 +0000 (15:38 +0000)]
This patch addresses PR13947.

For function calls on the 64-bit PowerPC SVR4 target, each parameter
is mapped to as many doublewords in the parameter save area as
necessary to hold the parameter.  The first 13 non-varargs
floating-point values are passed in registers; any additional
floating-point parameters are passed in the parameter save area.  A
single-precision floating-point parameter (32 bits) must be mapped to
the second (rightmost, low-order) word of its assigned doubleword
slot.

Currently LLVM violates this ABI requirement by mapping such a
parameter to the first (leftmost, high-order) word of its assigned
doubleword slot.  This is internally self-consistent but will not
interoperate correctly with libraries compiled with an ABI-compliant
compiler.

This patch corrects the problem by adjusting the parameter addressing
on both sides of the calling convention.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165714 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd test cases for correct parsing of register names in 32- and 64-bit modes.
David Chisnall [Thu, 11 Oct 2012 12:42:49 +0000 (12:42 +0000)]
Add test cases for correct parsing of register names in 32- and 64-bit modes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165713 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoExpose move to/from coprocessor instructions in MIPS64 mode.
David Chisnall [Thu, 11 Oct 2012 10:21:34 +0000 (10:21 +0000)]
Expose move to/from coprocessor instructions in MIPS64 mode.

Note: [D]M{T,F}CP2 is just a recommended encoding.  Vendors often provide a
custom CP2 that interprets instructions differently and may wish to add their
own instructions that use this opcode.  We should ensure that this is easy to
do.  I will probably add a 'has custom CP{0-3}' subtarget flag to make this
easy: We want to avoid the GCC situation where every MIPS vendor makes a custom
fork that breaks every other MIPS CPU and so can't be merged upstream.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165711 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agollvm/Analysis/Passes.h: Fix copypasto in createDependenceAnalysisPass().
NAKAMURA Takumi [Thu, 11 Oct 2012 08:26:52 +0000 (08:26 +0000)]
llvm/Analysis/Passes.h: Fix copypasto in createDependenceAnalysisPass().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165709 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agodependence analysis
Sebastian Pop [Thu, 11 Oct 2012 07:32:34 +0000 (07:32 +0000)]
dependence analysis

Patch from Preston Briggs <preston.briggs@gmail.com>.

This is an updated version of the dependence-analysis patch, including an MIV
test based on Banerjee's inequalities.

It's a fairly complete implementation of the paper

    Practical Dependence Testing
    Gina Goff, Ken Kennedy, and Chau-Wen Tseng
    PLDI 1991

It cannot yet propagate constraints between coupled RDIV subscripts (discussed
in Section 5.3.2 of the paper).

It's organized as a FunctionPass with a single entry point that supports testing
for dependence between two instructions in a function. If there's no dependence,
it returns null. If there's a dependence, it returns a pointer to a Dependence
which can be queried about details (what kind of dependence, is it loop
independent, direction and distance vector entries, etc). I haven't included
every imaginable feature, but there's a good selection that should be adequate
for supporting many loop transformations. Of course, it can be extended as
necessary.

Included in the patch file are many test cases, commented with C code showing
the loops and array references.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165708 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFollow the same routine to add target float expansion hook
Michael Liao [Thu, 11 Oct 2012 07:22:01 +0000 (07:22 +0000)]
Follow the same routine to add target float expansion hook

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165707 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agomisched: Handle "transient" non-instructions.
Andrew Trick [Thu, 11 Oct 2012 05:37:06 +0000 (05:37 +0000)]
misched: Handle "transient" non-instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165701 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoDon't crash when !tbaa.struct contents is invalid.
Nick Lewycky [Thu, 11 Oct 2012 02:05:23 +0000 (02:05 +0000)]
Don't crash when !tbaa.struct contents is invalid.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165693 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRevert r165661, "Patch by Shuxin Yang <shuxin.llvm@gmail.com>."
NAKAMURA Takumi [Thu, 11 Oct 2012 02:02:05 +0000 (02:02 +0000)]
Revert r165661, "Patch by Shuxin Yang <shuxin.llvm@gmail.com>."

It broke stage2 clang and test-suite/MultiSource/Benchmarks/mediabench/g721/g721encode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165692 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoGettingStarted.rst: s/&amp;/&/g
NAKAMURA Takumi [Thu, 11 Oct 2012 01:10:37 +0000 (01:10 +0000)]
GettingStarted.rst: s/&amp;/&/g

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165690 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoGettingStarted.rst: Fix the label to DeveloperPolicy.html.
NAKAMURA Takumi [Thu, 11 Oct 2012 01:10:27 +0000 (01:10 +0000)]
GettingStarted.rst: Fix the label to DeveloperPolicy.html.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165689 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd the LLVM context to this c'tor. It will be needed in the future.
Bill Wendling [Thu, 11 Oct 2012 01:10:00 +0000 (01:10 +0000)]
Add the LLVM context to this c'tor. It will be needed in the future.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165687 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoSupport a common idiom on how to build an Attributes class with a single attribute.
Bill Wendling [Thu, 11 Oct 2012 01:05:52 +0000 (01:05 +0000)]
Support a common idiom on how to build an Attributes class with a single attribute.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165686 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoDon't crash if a .ll file contains a forward-reference that looks like a global
Nick Lewycky [Thu, 11 Oct 2012 00:38:25 +0000 (00:38 +0000)]
Don't crash if a .ll file contains a forward-reference that looks like a global
value but later turns out to be a function.

Unfortunately, we can't fold tests into a single file because we only get one
error out of llvm-as.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165680 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoChange MachineInstrBuilder::addDisp to copy over target flags by default.
Evan Cheng [Thu, 11 Oct 2012 00:15:48 +0000 (00:15 +0000)]
Change MachineInstrBuilder::addDisp to copy over target flags by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165677 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd isel patterns for v2f32 / v4f32 neon.vbsl intrinsics. rdar://12471808
Evan Cheng [Wed, 10 Oct 2012 23:06:34 +0000 (23:06 +0000)]
Add isel patterns for v2f32 / v4f32 neon.vbsl intrinsics. rdar://12471808

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165673 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd getters for the MIPS TargetTransform classes
Nadav Rotem [Wed, 10 Oct 2012 22:45:53 +0000 (22:45 +0000)]
Add getters for the MIPS TargetTransform classes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165670 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove unused member variable introduced in r165665.
David Blaikie [Wed, 10 Oct 2012 22:38:21 +0000 (22:38 +0000)]
Remove unused member variable introduced in r165665.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165669 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFormatting and 80-col.
Eric Christopher [Wed, 10 Oct 2012 22:37:01 +0000 (22:37 +0000)]
Formatting and 80-col.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165668 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd -mattr=+altivec and remove XFAIL.
Bill Schmidt [Wed, 10 Oct 2012 22:25:11 +0000 (22:25 +0000)]
Add -mattr=+altivec and remove XFAIL.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165666 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd a new interface to allow IR-level passes to access codegen-specific information.
Nadav Rotem [Wed, 10 Oct 2012 22:04:55 +0000 (22:04 +0000)]
Add a new interface to allow IR-level passes to access codegen-specific information.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165665 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoXFAIL for all targets pending investigation
Bill Schmidt [Wed, 10 Oct 2012 21:52:10 +0000 (21:52 +0000)]
XFAIL for all targets pending investigation

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165664 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoPatch by Shuxin Yang <shuxin.llvm@gmail.com>.
Nadav Rotem [Wed, 10 Oct 2012 21:31:55 +0000 (21:31 +0000)]
Patch by Shuxin Yang <shuxin.llvm@gmail.com>.

Original message:

The attached is the fix to radar://11663049. The optimization can be outlined by following rules:

   (select (x != c), e, c) -> select (x != c), e, x),
   (select (x == c), c, e) -> select (x == c), x, e)
where the <c> is an integer constant.

 The reason for this change is that : on x86, conditional-move-from-constant needs two instructions;
however, conditional-move-from-register need only one instruction.

  While the LowerSELECT() sounds to be the most convenient place for this optimization, it turns out to be a bad place. The reason is that by replacing the constant <c> with a symbolic value, it obscure some instruction-combining opportunities which would otherwise be very easy to spot. For that reason, I have to postpone the change to last instruction-combining phase.

  The change passes the test of "make check-all -C <build-root/test" and "make -C project/test-suite/SingleSource".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165661 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoWhen generating spill and reload code for vector registers on PowerPC,
Bill Schmidt [Wed, 10 Oct 2012 21:25:01 +0000 (21:25 +0000)]
When generating spill and reload code for vector registers on PowerPC,
the compiler makes use of GPR0.  However, there are two flavors of
GPR0 defined by the target:  the 32-bit GPR0 (R0) and the 64-bit GPR0
(X0).  The spill/reload code makes use of R0 regardless of whether we
are generating 32- or 64-bit code.

This patch corrects the problem in the obvious manner, using X0 and
ADDI8 for 64-bit and R0 and ADDI for 32-bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165658 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoThe PowerPC VRSAVE register has been somewhat of an odd beast since
Bill Schmidt [Wed, 10 Oct 2012 20:54:15 +0000 (20:54 +0000)]
The PowerPC VRSAVE register has been somewhat of an odd beast since
the Altivec extensions were introduced.  Its use is optional, and
allows the compiler to communicate to the operating system which
vector registers should be saved and restored during a context switch.
In practice, this information is ignored by the various operating
systems using the SVR4 ABI; the kernel saves and restores the entire
register state.  Setting the VRSAVE register is no longer performed by
the AIX XL compilers, the IBM i compilers, or by GCC on Power Linux
systems.  It seems best to avoid this logic within LLVM as well.

This patch avoids generating code to update and restore VRSAVE for the
PowerPC SVR4 ABIs (32- and 64-bit).  The code remains in place for the
Darwin ABI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165656 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd in support for expansion of all of the comparison operations to the absolute...
Micah Villmow [Wed, 10 Oct 2012 20:50:51 +0000 (20:50 +0000)]
Add in support for expansion of all of the comparison operations to the absolute minimum required set. This allows a backend to expand any arbitrary set of comparisons as long as a minimum set is supported.
The minimum set of required instructions is ISD::AND, ISD::OR, ISD::SETO(or ISD::SETOEQ) and ISD::SETUO(or ISD::SETUNE). Everything is expanded into one of two patterns:
Pattern 1: (LHS CC1 RHS) Opc (LHS CC2 RHS)
Pattern 2: (LHS CC1 LHS) Opc (RHS CC2 RHS)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165655 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRevert r165652: "Remove unnecessary RTTI from the build."
Sean Silva [Wed, 10 Oct 2012 20:50:36 +0000 (20:50 +0000)]
Revert r165652: "Remove unnecessary RTTI from the build."

... Apparently the RTTI is still necessary for some reason.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165654 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove unnecessary RTTI from the build.
Sean Silva [Wed, 10 Oct 2012 20:27:20 +0000 (20:27 +0000)]
Remove unnecessary RTTI from the build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165652 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agotblgen: Compile TableGen without RTTI.
Sean Silva [Wed, 10 Oct 2012 20:27:18 +0000 (20:27 +0000)]
tblgen: Compile TableGen without RTTI.

TableGen no longer needs RTTI!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165651 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agotblgen: Move mini Type hierarchy to LLVM-style RTTI.
Sean Silva [Wed, 10 Oct 2012 20:24:49 +0000 (20:24 +0000)]
tblgen: Move mini Type hierarchy to LLVM-style RTTI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165648 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agotblgen: Use semantically correct RTTI functions.
Sean Silva [Wed, 10 Oct 2012 20:24:47 +0000 (20:24 +0000)]
tblgen: Use semantically correct RTTI functions.

Also, some minor cleanup.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165647 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agotblgen: Mechanically move dynamic_cast<> to dyn_cast<>.
Sean Silva [Wed, 10 Oct 2012 20:24:43 +0000 (20:24 +0000)]
tblgen: Mechanically move dynamic_cast<> to dyn_cast<>.

Some of these dyn_cast<>'s would be better phrased as isa<> or cast<>.
That will happen in a future patch.

There are also two dyn_cast_or_null<>'s slipped in instead of
dyn_cast<>'s, since they were causing crashes with just dyn_cast<>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165646 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agotblgen: Put dyn_cast<> machinery in place for Init hierarchy.
Sean Silva [Wed, 10 Oct 2012 20:24:40 +0000 (20:24 +0000)]
tblgen: Put dyn_cast<> machinery in place for Init hierarchy.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165645 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd the testcase from pr13254 (the old scalarreply pass handles this wrong;
Duncan Sands [Wed, 10 Oct 2012 18:41:19 +0000 (18:41 +0000)]
Add the testcase from pr13254 (the old scalarreply pass handles this wrong;
the new sroa pass handles it right).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165644 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove dead variable.
Bill Wendling [Wed, 10 Oct 2012 18:20:49 +0000 (18:20 +0000)]
Remove dead variable.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165639 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoSpecify CPU model to avoid breaking ATOM builds
Michael Liao [Wed, 10 Oct 2012 18:04:52 +0000 (18:04 +0000)]
Specify CPU model to avoid breaking ATOM builds

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165638 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove unused argument.
Bill Wendling [Wed, 10 Oct 2012 18:02:57 +0000 (18:02 +0000)]
Remove unused argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165636 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agodocs: Propagate fix from r165632 to other docs.
Sean Silva [Wed, 10 Oct 2012 17:21:39 +0000 (17:21 +0000)]
docs: Propagate fix from r165632 to other docs.

There are only two other instances of using `.. code::` instead of
`..  code-block::`.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165633 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agodocs: Attempt to fix PR14053.
Sean Silva [Wed, 10 Oct 2012 17:07:23 +0000 (17:07 +0000)]
docs: Attempt to fix PR14053.

Hypothesis 1: use of `.. code::` directive instead of `.. code-block::`
is causing Sphinx to discard the block. On my machine, `.. code::`
renders fine. However, I don't think that `..  code::` is actually a
legit Sphinx directive. I believe that on my machine Sphinx is falling
back to just displaying it monospace with no syntax, whereas llvm.org's
Sphinx is just discarding it.

This is truly "remote debugging" since I can't reproduce this on my
machine. It would be helpful to be able to see the llvm.org Sphinx
build logs; if that's possible please let me know.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165632 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd support for FP_ROUND from v2f64 to v2f32
Michael Liao [Wed, 10 Oct 2012 16:53:28 +0000 (16:53 +0000)]
Add support for FP_ROUND from v2f64 to v2f32

- Due to the current matching vector elements constraints in
  ISD::FP_ROUND, rounding from v2f64 to v4f32 (after legalization from
  v2f32) is scalarized. Add a customized v2f32 widening to convert it
  into a target-specific X86ISD::VFPROUND to work around this
  constraints.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165631 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd alternative support for FP_ROUND from v2f32 to v2f64
Michael Liao [Wed, 10 Oct 2012 16:32:15 +0000 (16:32 +0000)]
Add alternative support for FP_ROUND from v2f32 to v2f64

- Due to the current matching vector elements constraints in ISD::FP_EXTEND,
  rounding from v2f32 to v2f64 is scalarized. Add a customized v2f32 widening
  to convert it into a target-specific X86ISD::VFPEXT to work around this
  constraints. This patch also reverts a previous attempt to fix this issue by
  recovering the scalarized ISD::FP_EXTEND pattern and thus significantly
  reduces the overhead of supporting non-power-2 vector FP extend.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165625 91177308-0d34-0410-b5e6-96231b3b80d8

12 years ago[CMake] check-all: Don't include check-llvm into check-all without LLVM_BUILD_TOOLS.
NAKAMURA Takumi [Wed, 10 Oct 2012 13:33:00 +0000 (13:33 +0000)]
[CMake] check-all: Don't include check-llvm into check-all without LLVM_BUILD_TOOLS.

FIXME: Would you like to run llvm/unittests w/o LLVM_BUILD_TESTS regardless of LLVM_BUILD_TOOLS?

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165619 91177308-0d34-0410-b5e6-96231b3b80d8

12 years ago[CMake] add_lit_testsuite: EXCLUDE_FROM_ALL excludes the test ${target} out of check...
NAKAMURA Takumi [Wed, 10 Oct 2012 13:32:55 +0000 (13:32 +0000)]
[CMake] add_lit_testsuite: EXCLUDE_FROM_ALL excludes the test ${target} out of check-all.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165618 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoFix for LDRB instruction:
Stepan Dyatkovskiy [Wed, 10 Oct 2012 11:43:40 +0000 (11:43 +0000)]
Fix for LDRB instruction:
SDNode for LDRB_POST_IMM is invalid: number of registers added to SDNode fewer
that described in .td.

7 ops is needed, but SDNode with only 6 is created.

In more details:
In ARMInstrInfo.td, in multiclass AI2_ldridx, in definition _POST_IMM, offset
operand is defined as am2offset_imm. am2offset_imm is complex parameter type,
and actually it consists from dummy register and imm itself. As I understood
trick with dummy reg was made for AsmParser. In ARMISelLowering.cpp, this dummy
register was not added to SDNode, and it cause crash in Peephole Optimizer pass.

The problem fixed by setting up additional dummy reg when emitting
LDRB_POST_IMM instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165617 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoIssue description:
Stepan Dyatkovskiy [Wed, 10 Oct 2012 11:37:36 +0000 (11:37 +0000)]
Issue description:
SchedulerDAGInstrs::buildSchedGraph ignores dependencies between FixedStack
objects and byval parameters. So loading byval parameters from stack may be
inserted *before* it will be stored, since these operations are treated as
independent.

Fix:
Currently ARMTargetLowering::LowerFormalArguments saves byval registers with
FixedStack MachinePointerInfo. To fix the problem we need to store byval
registers with MachinePointerInfo referenced to first the "byval" parameter.

Also commit adds two new fields to the InputArg structure: Function's argument
index and InputArg's part offset in bytes relative to the start position of
Function's argument. E.g.: If function's argument is 128 bit width and it was
splitted onto 32 bit regs, then we got 4 InputArg structs with same arg index,
but different offset values.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165616 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoCleanup. Get rid of now dead code.
Bill Wendling [Wed, 10 Oct 2012 08:03:34 +0000 (08:03 +0000)]
Cleanup. Get rid of now dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165613 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRemove the final bits of Attributes being declared in the Attribute
Bill Wendling [Wed, 10 Oct 2012 07:36:45 +0000 (07:36 +0000)]
Remove the final bits of Attributes being declared in the Attribute
namespace. Use the attribute's enum value instead. No functionality change
intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165610 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoMy earlier "fix" for PBQP (see r165201) was incorrect. The real issue was that
Lang Hames [Wed, 10 Oct 2012 06:39:48 +0000 (06:39 +0000)]
My earlier "fix" for PBQP (see r165201) was incorrect. The real issue was that
checkRegMaskInterference only initializes the bitmask on the first interference.

This fixes PR14027 and (re)fixes PR13945.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165608 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoPass into the AttributeWithIndex::get method an ArrayRef of attribute
Bill Wendling [Wed, 10 Oct 2012 06:13:42 +0000 (06:13 +0000)]
Pass into the AttributeWithIndex::get method an ArrayRef of attribute
enums. These are then created via the correct Attributes creation method.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165607 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agomisched: fall-back to a target hook for instr bundles.
Andrew Trick [Wed, 10 Oct 2012 05:43:18 +0000 (05:43 +0000)]
misched: fall-back to a target hook for instr bundles.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165606 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoTODO comment
Andrew Trick [Wed, 10 Oct 2012 05:43:16 +0000 (05:43 +0000)]
TODO comment

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165605 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoTableGen subtarget emitter cleanup.
Andrew Trick [Wed, 10 Oct 2012 05:43:13 +0000 (05:43 +0000)]
TableGen subtarget emitter cleanup.

Consistently evaluate Aliases and Sequences recursively.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165604 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agomisched: Use the TargetSchedModel interface wherever possible.
Andrew Trick [Wed, 10 Oct 2012 05:43:09 +0000 (05:43 +0000)]
misched: Use the TargetSchedModel interface wherever possible.

Allows the new machine model to be used for NumMicroOps and OutputLatency.

Allows the HazardRecognizer to be disabled along with itineraries.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165603 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agomisched: Generate IsBuffered flag for machine resources.
Andrew Trick [Wed, 10 Oct 2012 05:43:04 +0000 (05:43 +0000)]
misched: Generate IsBuffered flag for machine resources.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165602 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agowhitespace
Andrew Trick [Wed, 10 Oct 2012 05:43:01 +0000 (05:43 +0000)]
whitespace

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165601 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoPlace temporary LTO files into their own subdirectory.
Bill Wendling [Wed, 10 Oct 2012 05:29:15 +0000 (05:29 +0000)]
Place temporary LTO files into their own subdirectory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165599 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoHave 'addFnAttr' take the attribute enum value. Then have it build the attribute...
Bill Wendling [Wed, 10 Oct 2012 03:12:49 +0000 (03:12 +0000)]
Have 'addFnAttr' take the attribute enum value. Then have it build the attribute object and add it appropriately. No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165595 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoTest case for r165480.
Craig Topper [Wed, 10 Oct 2012 02:54:23 +0000 (02:54 +0000)]
Test case for r165480.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165594 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoReorder some parts of the td file to by in alphabetical order
Reed Kotler [Wed, 10 Oct 2012 01:58:16 +0000 (01:58 +0000)]
Reorder some parts of the td file to by in alphabetical order

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165590 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdding comments to clarify the reason for non-standard style in these files.
Andrew Kaylor [Wed, 10 Oct 2012 01:48:52 +0000 (01:48 +0000)]
Adding comments to clarify the reason for non-standard style in these files.
Patch committed on behalf of Kirill Uhanov

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165589 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoCosmetic changes
Andrew Kaylor [Wed, 10 Oct 2012 01:45:52 +0000 (01:45 +0000)]
Cosmetic changes

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165588 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoThis patch adds new functions to the SectionRef and ObjectFile interfaces to determin...
Andrew Kaylor [Wed, 10 Oct 2012 01:41:33 +0000 (01:41 +0000)]
This patch adds new functions to the SectionRef and ObjectFile interfaces to determine whether or not a section is meant to be read-only.  These functions will be used by the MCJIT RuntimeDyld to give hints to the memory manager during the object loading process in a future patch.

Patch by Ashok Thirumurthi.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165586 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoImplement MipsTargetLowering::CanLowerReturn.
Akira Hatanaka [Wed, 10 Oct 2012 01:27:09 +0000 (01:27 +0000)]
Implement MipsTargetLowering::CanLowerReturn.

Patch by Sasa Stankovic.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165585 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoRevert "Use a special path to place the .o files in."
Bob Wilson [Tue, 9 Oct 2012 23:59:01 +0000 (23:59 +0000)]
Revert "Use a special path to place the .o files in."

This reverts commit 165428 in an attempt to get our buildbots going.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165574 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd extra vim swap file pattern
Michael Liao [Tue, 9 Oct 2012 23:48:34 +0000 (23:48 +0000)]
Add extra vim swap file pattern

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165569 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoWhen expanding atomic load arith instructions, do not lose target flags. rdar://12453106
Evan Cheng [Tue, 9 Oct 2012 23:48:33 +0000 (23:48 +0000)]
When expanding atomic load arith instructions, do not lose target flags. rdar://12453106

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165568 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agomisched: Add computeInstrLatency to TargetSchedModel.
Andrew Trick [Tue, 9 Oct 2012 23:44:32 +0000 (23:44 +0000)]
misched: Add computeInstrLatency to TargetSchedModel.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165566 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agomisched: Doxument the TargetSchedule API.
Andrew Trick [Tue, 9 Oct 2012 23:44:29 +0000 (23:44 +0000)]
misched: Doxument the TargetSchedule API.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165565 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agomisched: Allow flags to disable hasInstrSchedModel/hasInstrItineraries for external...
Andrew Trick [Tue, 9 Oct 2012 23:44:26 +0000 (23:44 +0000)]
misched: Allow flags to disable hasInstrSchedModel/hasInstrItineraries for external users of TargetSchedule.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165564 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agomisched: Remove LoopDependencies heuristic.
Andrew Trick [Tue, 9 Oct 2012 23:44:23 +0000 (23:44 +0000)]
misched: Remove LoopDependencies heuristic.

This wasn't contributing anything significant to postRA heuristics except compile time (by my measurements) and will be replaced by a more general heuristic for cross-region dependencies within the scheduler itself.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165563 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoUse the attribute builder to add attributes to call/invoke instruction. No functional...
Bill Wendling [Tue, 9 Oct 2012 23:40:31 +0000 (23:40 +0000)]
Use the attribute builder to add attributes to call/invoke instruction. No functionality change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165562 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoInitial assembler implementation of Mips load address macro
Jack Carter [Tue, 9 Oct 2012 23:29:45 +0000 (23:29 +0000)]
Initial assembler implementation of Mips load address macro

This patch provides initial implementation of load address
macro instruction for Mips. We have implemented two kinds
of expansions with their variations depending on the size
of immediate operand:

 1) load address with immediate value directly:
    * la d,j => addiu d,$zero,j   (for -32768 <= j <= 65535)
    * la d,j => lui d,hi16(j)
                ori d,d,lo16(j)   (for any other 32 bit value of j)

 2) load load address with register offset value
    * la d,j(s) => addiu d,s,j     (for -32768 <= j <= 65535)
    * la d,j(s) => lui d,hi16(j)   (for any other 32 bit value of j)
                   ori d,d,lo16(j)
                   addu d,d,s

This patch does not cover the case when the address is loaded
from the value of the label or function.

Contributer: Vladimir Medic

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165561 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd count() method to MapVector
Douglas Gregor [Tue, 9 Oct 2012 23:02:47 +0000 (23:02 +0000)]
Add count() method to MapVector

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165559 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoAdd in some interfaces that will allow easier access to the pointer address space.
Micah Villmow [Tue, 9 Oct 2012 22:27:29 +0000 (22:27 +0000)]
Add in some interfaces that will allow easier access to the pointer address space.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165554 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoUse the attribute enums to query if a function has an attribute.
Bill Wendling [Tue, 9 Oct 2012 21:49:51 +0000 (21:49 +0000)]
Use the attribute enums to query if a function has an attribute.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165551 91177308-0d34-0410-b5e6-96231b3b80d8

12 years agoUse the attribute enums to query if a parameter has an attribute.
Bill Wendling [Tue, 9 Oct 2012 21:38:14 +0000 (21:38 +0000)]
Use the attribute enums to query if a parameter has an attribute.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165550 91177308-0d34-0410-b5e6-96231b3b80d8