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2012-04-20Fix PR12599.Jakob Stoklund Olesen
The X86 target is editing the selection DAG while isel is selecting nodes following a topological ordering. When the DAG hacking triggers CSE, nodes can be deleted and bad things happen. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155257 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20ARM: tblgen'erate more NEON two-operand aliases.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155254 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Revert r155241, which is causing some breakage.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155253 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Make ISelPosition a local variable.Jakob Stoklund Olesen
Now that multiple DAGUpdateListeners can be active at the same time, ISelPosition can become a local variable in DoInstructionSelection. We simply register an ISelUpdater with CurDAG while ISelPosition exists. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155249 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Register DAGUpdateListeners with SelectionDAG.Jakob Stoklund Olesen
Instead of passing listener pointers to RAUW, let SelectionDAG itself keep a linked list of interested listeners. This makes it possible to have multiple listeners active at once, like RAUWUpdateListener was already doing. It also makes it possible to register listeners up the call stack without controlling all RAUW calls below. DAGUpdateListener uses an RAII pattern to add itself to the SelectionDAG list of active listeners. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155248 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Extraneous semicolon.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155247 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20If we discover all of the named structs in a module, then don't bother toBill Wendling
process any more Values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155241 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Print <def,read-undef> to avoid confusion.Jakob Stoklund Olesen
The <undef> flag on a def operand only applies to partial register redefinitions. Only print the flag when relevant, and print it as <def,read-undef> to make it clearer what it means. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155239 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Added TargetRegisterInfo::getRegPressureSetName.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155235 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20TableGen'd RegPressure: Added getPressureSetName.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155234 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Modify the sh-bang to run out-of-the-box for FreeBSDes.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155230 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20New and improved comment.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155229 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20SparseSet: Add support for key-derived indexes and arbitrary key types.Andrew Trick
This nicely handles the most common case of virtual register sets, but also handles anticipated cases where we will map pointers to IDs. The goal is not to develop a completely generic SparseSet template. Instead we want to handle the expected uses within llvm without any template antics in the client code. I'm adding a bit of template nastiness here, and some assumption about expected usage in order to make the client code very clean. The expected common uses cases I'm designing for: - integer keys that need to be reindexed, and may map to additional data - densely numbered objects where we want pointer keys because no number->object map exists. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155227 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20misched: initialize BBAndrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155226 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Allow converting MachineBasicBlock::iterator to const_iterator.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155225 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20[docs] Update version number. I suggest that at some point we make theMichael J. Spencer
build system generate this file with the proper version. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155221 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Fix broken internal link.Joel Jones
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155213 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Kick off 3.2 cycle for LLVM trunk.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155211 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20ARM: Update NEON assembly two-operand aliases.Jim Grosbach
Use the new TwoOperandAliasConstraint to handle lots of the two-operand aliases for NEON instructions. There's still more to go, but this is a good chunk of them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155210 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Add debugging hints for when bugpoint does not suffice, specifically for ↵Joel Jones
instcombine and TargetLowering git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155209 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20[docs] Update Makefile for images removal.Daniel Dunbar
- Also, drop the lines.gif background from doxygen, this URL was wrong on the llvm.org server anyway. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155208 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20LLVM docs no longer contain images, don't try to install them.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155206 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Add documentation comment.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155203 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Correct spelling, q.v. http://en.wikipedia.org/wiki/Bourne_shellJoel Jones
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155202 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20[docs] Remove spurious or unused images.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155199 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Removes json-bench from the test dependencies.Manuel Klimek
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155197 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20effectively back out my last change (r155190)Gabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155195 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20fix obviously bogus (IMO) operand index of the load in assertsGabor Greif
(load only has one operand) and smuggle in some whitespace changes too NB: I am obviously testing the water here, and believe that the unguarded cast is still wrong, but why is the getZExtValue of the load's operand tested against zero here? Any review is appreciated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155190 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Convert more uses of XXXRegisterClass to &XXXRegClass. No functional change ↵Craig Topper
since they are equivalent. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155188 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Convert some uses of XXXRegisterClass to &XXXRegClass. No functional change ↵Craig Topper
since they are equivalent. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155186 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Revert r155136 "Defer some shl transforms to DAGCombine."Jakob Stoklund Olesen
While the patch was perfect and defect free, it exposed a really nasty bug in X86 SelectionDAG that caused an llc crash when compiling lencod. I'll put the patch back in after fixing the SelectionDAG problem. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155181 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20ARM some VFP tblgen'erated two-operand aliases.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155178 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-20Tidy up. Formatting.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155177 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19ARM let TableGen handle a few two-operand aliases.Jim Grosbach
No need for these explicit aliases anymore. Nuke 'em. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155173 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19TableGen support for auto-generating assembly two-operand aliases.Jim Grosbach
Assembly matchers for instructions with a two-operand form. ARM is full of these, for example: add {Rd}, Rn, Rm // Rd is optional and is the same as Rn if omitted. The property TwoOperandAliasConstraint on the instruction definition controls when, and if, an alias will be formed. No explicit InstAlias definitions are required. rdar://11255754 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155172 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19Put this expensive check below the less expensive ones.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155166 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19When cross compiling, install a host version of llvm-config. <rdar://11187889>Bob Wilson
Now that llvm-config is a binary instead of a script the version installed during a cross compiled build cannot be run from the host. When cross compiling, install a separate llvm-config-host that will run on the host. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155164 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19Avoid a bug in the path count computation, preventing an infiniteDan Gohman
loop repeatedlt making the same change. This is for rdar://11256239. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155160 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19Test for the the problem with xors being changed into andsJoel Jones
when the set bits aren't the same for both args of the xor. This transformation is in the function TargetLowering::SimplifyDemandedBits in the file lib/CodeGen/SelectionDAG/TargetLowering.cpp. I have tested this test using a previous version of llc which the defect and the a version of llc which does not. I got the expected fail and pass, respectively. This test goes with rdar://11195364 and the check in with the fix: svn r154955 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155156 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19[docs] Update HTML pages to refer to CSS in a way that works locally and ↵Daniel Dunbar
with Sphinx. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155153 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19[docs] Remove index.html, I am flipping the switch on llvm.org.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155151 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19Remove llvm-ld and llvm-stub (which is only used by llvm-ld).Michael J. Spencer
llvm-ld is no longer useful and causes confusion and so it is being removed. * Does not work very well on Windows because it must call a gcc like driver to assemble and link. * Has lots of hard coded paths which are wrong on many systems. * Does not understand most of ld's options. * Can be partially replaced by llvm-link | opt | {llc | as, llc -filetype=obj} | ld, or fully replaced by Clang. I know of no production use of llvm-ld, and hacking use should be replaced by Clang's driver. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155147 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19Use a SmallVector instead of std::vector for ResOperands.Jim Grosbach
There's almost always a small number of instruction operands, so use a SmallVector and save on heap allocations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155143 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19Update some internal naming conventions to modern style.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155142 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19Defer some shl transforms to DAGCombine.Jakob Stoklund Olesen
The shl instruction is used to represent multiplication by a constant power of two as well as bitwise left shifts. Some InstCombine transformations would turn an shl instruction into a bit mask operation, making it difficult for later analysis passes to recognize the constsnt multiplication. Disable those shl transformations, deferring them to DAGCombine time. An 'shl X, C' instruction is now treated mostly the same was as 'mul X, C'. These transformations are deferred: (X >>? C) << C --> X & (-1 << C) (When X >> C has multiple uses) (X >>? C1) << C2 --> X << (C2-C1) & (-1 << C2) (When C2 > C1) (X >>? C1) << C2 --> X >>? (C1-C2) & (-1 << C2) (When C1 > C2) The corresponding exact transformations are preserved, just like div-exact + mul: (X >>?,exact C) << C --> X (X >>?,exact C1) << C2 --> X << (C2-C1) (X >>?,exact C1) << C2 --> X >>?,exact (C1-C2) The disabled transformations could also prevent the instruction selector from recognizing rotate patterns in hash functions and cryptographic primitives. I have a test case for that, but it is too fragile. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155136 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19[docs] Add back old index.html until I get llvm.org work done to support ↵Daniel Dunbar
Sphinx docs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155134 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19[docs] Convert docs index page into Sphinx.Daniel Dunbar
- Work in progress, this is mostly important because it lets us incrementally migrate the remaining documentation. - Lots of styling, editing, and integration work yet to come… - PR12589 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155133 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19[docs] Stub out structure for Sphinx-based docs.Daniel Dunbar
- Work in progress, this is just the basic structure. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155132 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19llvm-lit: Inject the lit module path at the beginning of sys.path, just in caseDaniel Dunbar
the user has another lit somewhere. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155131 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-19zap tabsGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@155128 91177308-0d34-0410-b5e6-96231b3b80d8
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