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path: root/lib/Transforms/IPO/MergeFunctions.cpp
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2010-08-06Revert r110396 to fix buildbots.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110410 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-05Don't use PassInfo* as a type identifier for passes. Instead, use the ↵Owen Anderson
address of the static ID member as the sole unique type identifier. Clean up APIs related to this change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110396 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02Fix a -Wreorder warning.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110022 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-02Work in progress.Nick Lewycky
Start cleaning up MergeFunctions to look more like the rest of LLVM. The primary change here is to move the methods responsible for comparison into the new FunctionComparator object. Some comments added. There's more to do. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110021 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-21Fix batch of converting RegisterPass<> to INTIALIZE_PASS().Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109045 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16Arrays and vectors with different numbers of elements are not equivalent.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108517 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15This is a full sentence.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108418 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15Disable aliases on all platforms.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108417 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-07Rename "Release" builds as "Release+Asserts"; rename "Release-Asserts"Duncan Sands
builds to "Release". The default build is unchanged (optimization on, assertions on), however it is now called Release+Asserts. The intent is that future LLVM releases released via llvm.org will be Release builds in the new sense, i.e. will have assertions disabled (currently they have assertions enabled, for a more than 20% slowdown). This will bring them in line with MacOS releases, which ship with assertions disabled. It also means that "Release" now means the same things in make and cmake builds: cmake already disables assertions for "Release" builds AFAICS. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107758 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-01Implement the "linker_private_weak" linkage type. This will be used forBill Wendling
Objective-C metadata types which should be marked as "weak", but which the linker will remove upon final linkage. However, this linkage isn't specific to Objective-C. For example, the "objc_msgSend_fixup_alloc" symbol is defined like this: .globl l_objc_msgSend_fixup_alloc .weak_definition l_objc_msgSend_fixup_alloc .section __DATA, __objc_msgrefs, coalesced .align 3 l_objc_msgSend_fixup_alloc: .quad _objc_msgSend_fixup .quad L_OBJC_METH_VAR_NAME_1 This is different from the "linker_private" linkage type, because it can't have the metadata defined with ".weak_definition". Currently only supported on Darwin platforms. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107433 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29Revert r107205 and r107207.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107215 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29Introducing the "linker_weak" linkage type. This will be used for Objective-CBill Wendling
metadata types which should be marked as "weak", but which the linker will remove upon final linkage. For example, the "objc_msgSend_fixup_alloc" symbol is defined like this: .globl l_objc_msgSend_fixup_alloc .weak_definition l_objc_msgSend_fixup_alloc .section __DATA, __objc_msgrefs, coalesced .align 3 l_objc_msgSend_fixup_alloc: .quad _objc_msgSend_fixup .quad L_OBJC_METH_VAR_NAME_1 This is different from the "linker_private" linkage type, because it can't have the metadata defined with ".weak_definition". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107205 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-13Remove heinous tabs.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103700 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-13Replace the core comparison login in merge functions. We can now mergeNick Lewycky
vector<>::push_back() in: int foo(vector<int> &a, vector<unsigned> &b) { a.push_back(10); b.push_back(11); } to two calls to the same push_back function, or fold away the two copies of push_back() in: struct T { int; }; struct S { char; }; vector<T*> t; vector<S*> s; void f(T *x) { t.push_back(x); } void g(S *x) { s.push_back(x); } but leave f() and g() separate, since they refer to two different global variables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103698 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-27Kill ModuleProvider and ghost linkage by inverting the relationship betweenJeffrey Yasskin
Modules and ModuleProviders. Because the "ModuleProvider" simply materializes GlobalValues now, and doesn't provide modules, it's renamed to "GVMaterializer". Code that used to need a ModuleProvider to materialize Functions can now materialize the Functions directly. Functions no longer use a magic linkage to record that they're materializable; they simply ask the GVMaterializer. Because the C ABI must never change, we can't remove LLVMModuleProviderRef or the functions that refer to it. Instead, because Module now exposes the same functionality ModuleProvider used to, we store a Module* in any LLVMModuleProviderRef and translate in the wrapper methods. The bindings to other languages still use the ModuleProvider concept. It would probably be worth some time to update them to follow the C++ more closely, but I don't intend to do it. Fixes http://llvm.org/PR5737 and http://llvm.org/PR5735. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94686 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05Avoid going through the LLVMContext for type equality where it's safe to ↵Benjamin Kramer
dereference the type pointer. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92726 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05Change errs() to dbgs().David Greene
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92633 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25Remove includes of Support/Compiler.h that are no longer needed after theNick Lewycky
VISIBILITY_HIDDEN removal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85043 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-25Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces.Nick Lewycky
Chris claims we should never have visibility_hidden inside any .cpp file but that's still not true even after this commit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85042 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-20Tabs -> spaces, and remove trailing whitespace.Daniel Dunbar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@82355 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25Rename Instruction::isIdenticalTo to Instruction::isIdenticalToWhenDefined,Dan Gohman
and introduce a new Instruction::isIdenticalTo which tests for full identity, including the SubclassOptionalData flags. Also, fix the Instruction::clone implementations to preserve the SubclassOptionalData flags. Finally, teach several optimizations how to handle SubclassOptionalData correctly, given these changes. This fixes the counterintuitive behavior of isIdenticalTo not comparing the full value, and clone not returning an identical clone, as well as some subtle bugs that could be caused by these. Thanks to Nick Lewycky for reporting this, and for an initial patch! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80038 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23remove a few DOUTs here and there.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79832 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-13Push LLVMContexts through the IntegerType APIs.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78948 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-11Remove unnecessary casts.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78664 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-29Move ConstantExpr to 2.5 API.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77494 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25More migration to raw_ostream, the water has dried up around the iostream hole.Daniel Dunbar
- Some clients which used DOUT have moved to DEBUG. We are deprecating the "magic" DOUT behavior which avoided calling printing functions when the statement was disabled. In addition to being unnecessary magic, it had the downside of leaving code in -Asserts builds, and of hiding potentially unnecessary computations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77019 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22Get rid of the Pass+Context magic.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76702 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-20Add plumbing for the `linker_private' linkage type. This type is meant forBill Wendling
"private" symbols which the assember shouldn't strip, but which the linker may remove after evaluation. This is mostly useful for Objective-C metadata. This is plumbing, so we don't have a use of it yet. More to come, etc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76385 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-16Move the ConstantInt uniquing table into LLVMContextImpl. This exposed a ↵Owen Anderson
number of issues in our current context-passing stuff, which is also fixed here git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76089 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.Torok Edwin
This adds location info for all llvm_unreachable calls (which is a macro now) in !NDEBUG builds. In NDEBUG builds location info and the message is off (it only prints "UREACHABLE executed"). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75640 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-11assert(0) -> LLVM_UNREACHABLE.Torok Edwin
Make llvm_unreachable take an optional string, thus moving the cerr<< out of line. LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for NDEBUG builds. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75379 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-06More LLVMContext-ification.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74811 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-13Unlike the other instructions, GEP really does need to look at the type of aNick Lewycky
pointer. This fixes kimwitu++. Pointed out by Frits van Bommel on review! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73299 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-12Give Instruction::isSameOperationAs a corresponding comment to noteDan Gohman
the relationship with MergeFunctions.cpp's isEquivalentOperation, and make a trivial code reordering so that the two functions are easier to compare. Fix the name of Instruction::isSameOperationAs in MergeFunction.cpp's isEquivalentOperation's comment, and fix a nearby 80-column violation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73241 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-12Keep callers of a weak function calling it, instead of the non-weak equivalent.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73235 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-12Don't forget to match the calling convention when producing a thunk.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73231 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-12Given two identical weak functions, produce one internal function and two weakNick Lewycky
thunks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73230 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-12Add an "are types equivalent" operation that ignores the types that a pointerNick Lewycky
points to while analyzing all other fields. Use FoldingSetNodeID to produce a good hash. This dramatically decreases run times. Emit thunks. This means that it can look at all functions regardless of what the linkage is or if the address is taken, but unfortunately some small functions can be even shorter than the thunk because our backend doesn't yet realize it can just turn these into jumps. This means that this pass will pessimize code on average. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73222 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-15Add the private linkage.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62279 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-02Changes from Duncan's review:Nick Lewycky
* merge two weak functions by making them both alias a third non-weak fn * don't reimplement CallSite::hasArgument * whitelist the safe linkage types git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58568 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-02Get this building on 64 bit machines (error:Duncan Sands
cast from ‘const llvm::PointerType*’ to ‘unsigned int’ loses precision). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58561 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-02Add a new MergeFunctions pass. It finds identical functions and merges them.Nick Lewycky
This triggers only 60 times in llvm-test (look at .llvm.bc, not .linked.rbc) and so it probably wont be turned on by default. Also, may of those are likely to go away when PR2973 is fixed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58557 91177308-0d34-0410-b5e6-96231b3b80d8
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