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2010-03-30Merge 99762 from mainline.Tanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_27@99908 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23 Merge 98977 from mainline.Tanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_27@99292 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-23Merge r98845 from mainline.Tanya Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_27@99291 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-12Merge 97974 from mainline.Tanya Lattner
Iterator traits and swap. closes PR6548 and PR6549 git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_27@98312 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-11Merge 98212 from mainline.Tanya Lattner
add support, testcases, and dox for the new GHC calling convention. Patch by David Terei! git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_27@98307 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-08Revert r97917, which was causing Clang Debug self-host failures.Douglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97932 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07Roll back r97918 again. Just configuring against llvm-gcc wasn't enough to runJeffrey Yasskin
the FrontendC* tests. :( git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97921 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07Reapply r97788 to free MDNodes when the LLVMContext is destroyed. ItJeffrey Yasskin
bootstraps llvm-gcc this time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97918 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07Roll r97906 forward again, without double-deleting CompileUnit::IndexTyDie.Jeffrey Yasskin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97917 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07Add findNearestCommonDominator() for PostDominators.Tobias Grosser
Add a missing interface to be able to call findNearestCommonDominator for a PostDominanceTree. The function itself is already implemented in DominatorTreeBase. The interface however was only added to the DominatorTree class, but not the PostDominatorClass. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97915 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07Use Other as a sentinel instead of iAny.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97914 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07_2_ gcc crashes, ah, ah, ah...Jeffrey Yasskin
(Rolling back r97906.) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97909 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07Avoid leaking CompileUnits and DbgScopes from DwarfDebug. Leaks found by ↵Jeffrey Yasskin
Valgrind! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97906 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-06make APFloat::toString be const.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97883 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-06Add static methods to handle Linkage Types.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97871 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-06Add a LLVMWriteBitcodeToFD that exposes the raw_fd_ostream options.Erick Tryzelaar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97858 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-06Add some new bits of debug info handling. NoDale Johannesen
functional change yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97855 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05Move SimplifyLibCalls's LibCall builders to a separate file so theyEric Christopher
can be used in more places. Add an argument for the TargetData that most of them need. Update for the getInt8PtrTy() change. Should be no functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97844 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05Add support for an i8* type accessor.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97841 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05Move GetStringLength and helper from SimplifyLibCalls to ValueTracking.Eric Christopher
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97793 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05Revert r97788 because it broke test/FrontendC/2010-02-16-DbgVarScope.c.Jeffrey Yasskin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97792 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05Free MDNodes when the LLVMContext is destroyed. Leak found by Valgrind.Jeffrey Yasskin
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97788 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05Make it not an error to specify -O* options several times.Mikhail Glushenkov
As in 'llvmc -O2 -O2 test.c'. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97787 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-04inline CannotYetSelectIntrinsic into CannotYetSelect and simplify.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97690 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03Expose alignment and stack alignment attributes to llvm-c and ocaml.Erick Tryzelaar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97682 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03Move MachineInstrExpressionTrait::getHashValue() out of line so it can skip ↵Evan Cheng
over only virtual register defs. This matches what isEqual() is doing. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97680 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03Re-apply r97667 but with a little bit of thought put into the patch. This ↵Evan Cheng
implements a special DenseMapInfo trait for DenseMap<MachineInstr*> that compare the value of the MachineInstr rather than the pointer value. Since the hashing and equality test functions ignore defs it's useful for doing CSE kind optimization. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97678 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03Revert 97667. It broke a bunch of tests.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97673 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03Move DenseMapInfo for MachineInstr* to MachineInstr.hEvan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97667 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03Add MachineRegisterInfo::hasOneUse and hasOneNonDBGUse.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97663 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03don't use always_inline with gcc 3.4, it has some unimplemented featuresChris Lattner
and is too old to really care about the performance of the generated compiler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97662 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03TopLevelMap[] reference is a pointer.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97661 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03speed up scope node processing: if the first element of a scopeChris Lattner
entry we're about to process is obviously going to fail, don't bother pushing a scope only to have it immediately be popped. This avoids a lot of scope stack traffic in common cases. Unfortunately, this requires duplicating some of the predicate dispatch. To avoid duplicating the actual logic I pulled each predicate out to its own static function which gets used in both places. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97651 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03introduce a new SwitchTypeMatcher node (which is analogous toChris Lattner
SwitchOpcodeMatcher) and have DAGISelMatcherOpt form it. This speeds up selection, particularly for X86 which has lots of variants of instructions with only type differences. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97645 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03- Change MachineInstr::isIdenticalTo to take a new option that determines ↵Evan Cheng
whether it should skip checking defs or at least virtual register defs. This subsumes part of the TargetInstrInfo::isIdentical functionality. - Eliminate TargetInstrInfo::isIdentical and replace it with produceSameValue. In the default case, produceSameValue just checks whether two machine instructions are identical (except for virtual register defs). But targets may override it to check for unusual cases (e.g. ARM pic loads from constant pools). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97628 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-03Ordering forward declarations.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97626 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02Add Module functions in place of module providers.Erick Tryzelaar
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97608 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02remove 300 lines of code that is now dead in the MSP430 backendChris Lattner
now that isel handles chains more aggressively. This also allows us to make isLegalToFold non-virtual. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97597 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02Fix some issues in WalkChainUsers dealing with Chris Lattner
CopyToReg/CopyFromReg/INLINEASM. These are annoying because they have the same opcode before an after isel. Fix this by setting their NodeID to -1 to indicate that they are selected, just like what automatically happens when selecting things that end up being machine nodes. With that done, give IsLegalToFold a new flag that causes it to ignore chains. This lets the HandleMergeInputChains routine be the one place that validates chains after a match is successful, enabling the new hotness in chain processing. This smarter chain processing eliminates the need for "PreprocessRMW" in the X86 and MSP430 backends and enables MSP to start matching it's multiple mem operand instructions more aggressively. I currently #if out the dead code in the X86 backend and MSP backend, I'll remove it for real in a follow-on patch. The testcase changes are: test/CodeGen/X86/sse3.ll: we generate better code test/CodeGen/X86/store_op_load_fold2.ll: PreprocessRMW was miscompiling this before, we now generate correct code Convert it to filecheck while I'm at it. test/CodeGen/MSP430/Inst16mm.ll: Add a testcase for mem/mem folding to make anton happy. :) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97596 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02Allow specialization of ScopedHashTable of non-default DenseMapInfo.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97594 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02Rename LLVMUseIteratorRef to LLVMUseRef since we don't refer to iterators in ↵Erick Tryzelaar
llvm-c. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97585 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02Swap parameters of isSafeToMove and isSafeToReMat for consistency.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97578 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02Fix the xfail I added a couple of patches back. The issueChris Lattner
was that we weren't properly handling the case when interior nodes of a matched pattern become dead after updating chain and flag uses. Now we handle this explicitly in UpdateChainsAndFlags. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97561 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02factor node morphing out to its own helper method.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97558 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02eliminate CodeGen/DAGISelHeader.h, it is empty now.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97556 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02Sink InstructionSelect() out of each target into SDISel, and rename itChris Lattner
DoInstructionSelection. Inline "SelectRoot" into it from DAGISelHeader. Sink some other stuff out of DAGISelHeader into SDISel. Eliminate the various 'Indent' stuff from various targets, which dates to when isel was recursive. 17 files changed, 114 insertions(+), 430 deletions(-) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97555 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02move some code out of DAGISelHeader up to SelectionDAGISel.h where itChris Lattner
is shared by all targets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97553 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02Add skeleton of a machine level cse pass.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97543 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02Add count() and lookup() to ScopedHashTable. It might be useful to get ↵Evan Cheng
information out of the hash table. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97542 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-02Rewrite chain handling validation and input TokenFactor handlingChris Lattner
stuff now that we don't care about emulating the old broken behavior of the old isel. This eliminates the 'CheckChainCompatible' check (along with IsChainCompatible) which did an incorrect and inefficient scan *up* the chain nodes which happened as the pattern was being formed and does the validation at the end in HandleMergeInputChains when it forms a structural pattern. This scans "down" the graph, which means that it is quickly bounded by nodes already selected. This also handles token factors that get "trapped" in the dag. Removing the CheckChainCompatible nodes also shrinks the generated tables by about 6K for X86 (down to 83K). There are two pieces remaining before I can nuke PreprocessRMW: 1. I xfailed a test because we're now producing worse code in a case that has nothing to do with the change: it turns out that our use of MorphNodeTo will leave dead nodes in the graph which (depending on how the graph is walked) end up causing bogus uses of chains and blocking matches. This is really bad for other reasons, so I'll fix this in a follow-up patch. 2. CheckFoldableChainNode needs to be improved to handle the TF. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97539 91177308-0d34-0410-b5e6-96231b3b80d8
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