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2012-11-22Merging r168354: into 3.2 release branchPawel Wodnicki
Make the AttrListPtr object a part of the LLVMContext. When code deletes the context, the AttributeImpls that the AttrListPtr points to are now invalid. Therefore, instead of keeping a separate managed static for the AttrListPtrs that's reference counted, move it into the LLVMContext and delete it when deleting the AttributeImpls. git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168486 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-21Reverting 168457Pawel Wodnicki
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168465 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-21Merging r168354, r168355 and r168379 into the 3.2 release branch.Pawel Wodnicki
Set of Attributes patches. Merging r168354: Make the AttrListPtr object a part of the LLVMContext. When code deletes the context, the AttributeImpls that the AttrListPtr points to are now invalid. Therefore, instead of keeping a separate managed static for the AttrListPtrs that's reference counted, move it into the LLVMContext and delete it when deleting the AttributeImpls. Merging r168355: Merging r168379 git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168457 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-16Merge r168037 from trunk:Hans Wennborg
Make GlobalOpt be conservative with TLS variables (PR14309) For global variables that get the same value stored into them everywhere, GlobalOpt will replace them with a constant. The problem is that a thread-local GlobalVariable looks like one value (the address of the TLS var), but is different between threads. This patch introduces Constant::isThreadDependent() which returns true for thread-local variables and constants which depend on them (e.g. a GEP into a thread-local array), and teaches GlobalOpt not to track such values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_32@168192 91177308-0d34-0410-b5e6-96231b3b80d8
2012-11-01Revert the series of commits starting with r166578 which introduced theChandler Carruth
getIntPtrType support for multiple address spaces via a pointer type, and also introduced a crasher bug in the constant folder reported in PR14233. These commits also contained several problems that should really be addressed before they are re-committed. I have avoided reverting various cleanups to the DataLayout APIs that are reasonable to have moving forward in order to reduce the amount of churn, and minimize the number of commits that were reverted. I've also manually updated merge conflicts and manually arranged for the getIntPtrType function to stay in DataLayout and to be defined in a plausible way after this revert. Thanks to Duncan for working through this exact strategy with me, and Nick Lewycky for tracking down the really annoying crasher this triggered. (Test case to follow in its own commit.) After discussing with Duncan extensively, and based on a note from Micah, I'm going to continue to back out some more of the more problematic patches in this series in order to ensure we go into the LLVM 3.2 branch with a reasonable story here. I'll send a note to llvmdev explaining what's going on and why. Summary of reverted revisions: r166634: Fix a compiler warning with an unused variable. r166607: Add some cleanup to the DataLayout changes requested by Chandler. r166596: Revert "Back out r166591, not sure why this made it through since I cancelled the command. Bleh, sorry about this! r166591: Delete a directory that wasn't supposed to be checked in yet. r166578: Add in support for getIntPtrType to get the pointer type based on the address space. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167221 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-31Replace some instances of UniqueVector with SetVector, which is slightly ↵Benjamin Kramer
cheaper. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167116 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-3080-colNadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167036 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-29Rename the BB-vectorize flag to match the dragonegg nameNadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166948 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-29Change the PassManagerBuilder (used by -O3) loop vectorizer flag from ↵Nadav Rotem
-vectorize to -vectorize-loops because we dont want to share the same flag as the bb-vectorizer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166937 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-29llvm-extract changes linkages so that functions on both sides of theRafael Espindola
split module can see each other. If it is keeping a symbol that already has a non local linkage, it doesn't need to change it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166908 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-29llvm-extract was unable to handle aliases. It would leave a copy on theRafael Espindola
output of both llvm-extract foo.ll -func=bar and llvm-extract foo.ll -func=bar -delete so the two new files could not be linked together anymore. With this change alias are handled almost like functions and global variables. Almost because with alias we cannot just clear the initializer/body, we have to create a new declaration and replace the alias with it. The net result is that now the output of the above commands can be linked even if foo.ll has aliases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166907 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-26Change the internalize pass to internalize all symbols when given an emptyRafael Espindola
list of externals. This makes sense since a shared library with no symbols can still be useful if it has static constructors. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166795 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-24revert accidental changeNadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166643 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-24Implement a basic cost model for vector and scalar instructions. Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166642 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-24Add in support for getIntPtrType to get the pointer type based on the ↵Micah Villmow
address space. This checkin also adds in some tests that utilize these paths and updates some of the clients. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166578 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-18Introduce a BarrierNoop pass, a hack designed to allow *some* controlChandler Carruth
over the implicitly-formed-and-nesting CGSCC pass manager and function pass managers, especially when using them on the opt commandline or using extension points in the module builder. The '-barrier' opt flag (or the pass itself) will create a no-op module pass in the pipeline, resetting the pass manager stack, and allowing the creation of a new pipeline of function passes or CGSCC passes to be created that is independent from any previous pipelines. For example, this can be used to test running two CGSCC passes in independent CGSCC pass managers as opposed to in the same CGSCC pass manager. It also allows us to introduce a further hack into the PassManagerBuilder to separate the O0 pipeline extension passes from the always-inliner's CGSCC pass manager, which they likely do not want to participate in... At the very least none of the Sanitizer passes want this behavior. This fixes a bug with ASan at O0 currently, and I'll commit the ASan test which covers this pass. I'm happy to add a test case that this pass exists and works, but not sure how much time folks would like me to spend adding test cases for the details of its behavior of partition pass managers.... The whole thing is just vile, and mostly intended to unblock ASan, so I'm hoping to rip this all out in a brave new pass manager world. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166172 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-17Add a loop vectorizer.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166112 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16Use the Attributes::get method which takes an AttrVal value directly to ↵Bill Wendling
simplify the code a bit. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166009 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-16Fix filename in file header.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166004 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Move the Attributes::Builder outside of the Attributes class and into its ↵Bill Wendling
own class named AttrBuilder. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165960 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Add an enum for the return and function indexes into the AttrListPtr object. ↵Bill Wendling
This gets rid of some magic numbers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165924 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-15Attributes RewriteBill Wendling
Convert the internal representation of the Attributes class into a pointer to an opaque object that's uniqued by and stored in the LLVMContext object. The Attributes class then becomes a thin wrapper around this opaque object. Eventually, the internal representation will be expanded to include attributes that represent code generation options, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165917 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-14Remove operator cast method in favor of querying with the correct method.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165899 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-14Remove the bitwise AND operators from the Attributes class. Replace it with ↵Bill Wendling
the equivalent from the builder class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165896 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-14Remove the bitwise assignment OR operator from the Attributes class. Replace ↵Bill Wendling
it with the equivalent from the builder class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165895 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-14Remove the bitwise NOT operator from the Attributes class. Replace it with ↵Bill Wendling
the equivalent from the builder class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165892 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-10Remove the final bits of Attributes being declared in the AttributeBill Wendling
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
2012-10-10Have 'addFnAttr' take the attribute enum value. Then have it build the ↵Bill Wendling
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
2012-10-09Use the attribute enums to query if a parameter has an attribute.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165550 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-09Fixup for r165490: Use DenseMap instead of std::map. Simplify the loop in ↵Alexey Samsonov
CollectFunctionDIs. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165498 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-09Use the enum value of the attributes when adding them to the attributes builder.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165494 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-09Fix PR14016.Alexey Samsonov
DeadArgumentElimination pass can replace one LLVM function with another, invalidating a pointer stored in debug info metadata entry for this function. To fix this, we collect debug info descriptors for functions before running a DeadArgumentElimination pass and "patch" pointers in metadata nodes if we replace a function. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165490 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-09Create enums for the different attributes.Bill Wendling
We use the enums to query whether an Attributes object has that attribute. The opaque layer is responsible for knowing where that specific attribute is stored. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165488 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-09Convert to using the Attributes::Builder class to create attributes.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165468 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-08Give CaptureTracker::shouldExplore a base implementation. Most users want to doNick Lewycky
the same thing. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165435 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-08Move TargetData to DataLayout.Micah Villmow
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165402 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-04Use method to query for attributes.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165209 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-04Add method to query for 'NoAlias' attribute on call/invoke instructions.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165208 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-04Use method to query for attributes.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165207 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-04Query for attributes via the correct method call.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165206 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-02Turn the new SROA pass back on. Let's see if it sticks this time. =]Chandler Carruth
Again, let me know if anything breaks due to this! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164986 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-30ArgumentPromotion: Remove ancient workaround for a bug in the C backend.Benjamin Kramer
Fun fact: The CBE learned how to deal with this situation before it was removed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164918 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-28GlobalDCE should be run at -O2 / -Os to eliminate unused dtor, etc. ↵Evan Cheng
rdar://9142819 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164850 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-28GlobalOpt: non-constexpr bitcasts or GEPs can occur even if the global value ↵Benjamin Kramer
is only stored once. Fixes PR13968. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164815 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-27Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. ↵Sylvestre Ledru
See: http://en.wikipedia.org/wiki/If_and_only_if Commit 164767 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164768 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-27Fix a typo 'iff' => 'if'Sylvestre Ledru
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164767 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-26Disable the new SROA pass to get the tree back in working order. We don't yetNick Lewycky
have testcases for the current problems. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164731 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-26Remove the `hasFnAttr' method from Function.Bill Wendling
The hasFnAttr method has been replaced by querying the Attributes explicitly. No intended functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164725 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-25Move Attribute::typeIncompatible inside of the Attributes class.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164629 91177308-0d34-0410-b5e6-96231b3b80d8
2012-09-24Enable the new SROA pass by default.Chandler Carruth
Queue the fallout. ;] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164480 91177308-0d34-0410-b5e6-96231b3b80d8
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