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2011-08-15Simplify. Let DbgVariable keep track of variable's DBG_VALUE machine ↵Devang Patel
instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137656 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Duncan pointed out that the LandingPadInst might read memory. (It might alsoBill Wendling
write to memory.) Marking it as such makes some checks for immobility go away. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137655 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Fix llvm::CloneModule to correctly clone globals. Patch per bug report by ↵Eli Friedman
Simon Moll on llvmdev. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137654 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Fix predicates methods on Instruction to handle atomic load/store correctly.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137652 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Fix this test to avoid leaving a temporary file behind.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137651 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Misc analysis passes that need to be aware of atomic load/store.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137650 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Move MatchResultTy enum into base class definition.Jim Grosbach
No need for it to be redefined as part of every derived target asm parser class. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137649 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Atomic load/store support in LICM.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137648 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Enforce the constraint that Rt must be even on LDRD/STRD instructions in ARM ↵Owen Anderson
mode. Update tests to reflect this fact. Patch by James Molloy. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137647 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Add an ipsccp test. Migrated from test/FrontendC++.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137646 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Add a test for Thumb1 LDRSH decoding.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137645 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Add testcase for STRH. Patch by James Molloy.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137644 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Remove dead classes.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137643 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15The "landingpad" instruction will never be "trivially" dead.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137642 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Fix incorrect encoding of UMAAL and friends. Patch by James Molloy.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137641 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Simplify mapping to variable from its abstract variable info.Devang Patel
When a variable is inlined multiple places, abstract variable keeps name, location, type etc.. info and all other concreate instances of the variable directly refers to abstract variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137637 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Fix decoding LDRSB and LDRSH in Thumb1 mode. Patch by James Molloy.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137636 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Fix problems decoding the to/from-lane NEON memory instructions, and add a ↵Owen Anderson
comprehensive NEON decoding testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137635 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Refactor.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137632 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Refactor.Devang Patel
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137631 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Don't try to sink the landingpad instruction. It's immobile.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137629 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15The landingpad instruction isn't loop-invariant.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137628 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Mark the SCC as "might unwind" if we run into a 'resume' instruction.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137627 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Skip the insertion iterator past the landingpad instruction if there.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137626 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Refactor. Global variables are part of compile unit so let CompileUnit ↵Devang Patel
create new global variable. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137621 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Tidy up trailing whitespace.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137619 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Refactor. A subprogram is part of compile unit so let CompileUnit construct ↵Devang Patel
new subprogram. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137618 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Update comment to reflect MC target machine refactor.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137615 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-14Add inlining for the new EH scheme.Bill Wendling
This builds off of the current scheme, but instead of llvm.eh.exception and llvm.eh.selector, it uses the landingpad instruction. And instead of llvm.eh.resume, it uses the resume instruction. Because of the invariants in the landing pad instruction, a lot of code that's currently needed to find the appropriate intrinsic calls for an invoke instruction won't be needed once we go to the new EH scheme. The "FIXME"s tell us what to remove after we switch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137576 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-14This transform is not safe. Thanks to Eli for pointing that out!Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137575 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-14Don't attempt to add 'nsw' when intermediate instructions had no such guarantee.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137572 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-14Teach instcombine to preserve the nsw bit by doing an after-the-fact analysisNick Lewycky
when combining add and sub instructions. Patch by Pranav Bhandarkar! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137570 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-14EE: Provide the symbol "lseek64" explicitly with <unistd.h> on Linux glibc.NAKAMURA Takumi
With libcxx, it seems <unistd.h> would not be provided. Thanks to Ryuta Suzuki. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137567 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-13Fix PR 10635. When generating integer constants, the constant element type mayNadav Rotem
be illegal, even if the requested vector type is legal. Testcase is one of the disabled ARM tests in the vector-select patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137562 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-13Fix test.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137556 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-13Expand VMOVQQQQ pseudo instructions.Bob Wilson
Apparently we never added code to expand these pseudo instructions, and in over a year, no one has noticed. Our register allocator must be awesome! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137551 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-13Remove the last improper use of getGlobalContext() from LLVM.Nick Lewycky
This caused a race condition where a thread calls ~LLVMContextImpl which calls Module::dropAllReferences which calls begin() on an empty ilist that would create the sentinel, which racily accesses the global context. This can not be fixed by locking inside createSentinel because the lock would need to be shared with all users of the global context, including those that reside outside LLVM's own code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137546 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Fix the getelementptr description so it is extremely clear that array ↵Eli Friedman
indices passed to getelementptr are signed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137538 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Move "atomic" and "volatile" designations on instructions after the opcodeEli Friedman
of the instruction. Note that this change affects the existing non-atomic load and store instructions; the parser now accepts both forms, and the change is noted in the release notes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137527 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12ARM STR_POST_IMM offset encoding fix in load/store optimizer.Jim Grosbach
Tidy up the code a bit and push the definition of the value next to the uses to try to minimize this sort of issue from arising again while I'm at it. rdar://9945172 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137525 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Fix comment!Bruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137521 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Some reorganization of atomic docs. Added explicit section for NonAtomic. ↵Eli Friedman
Added example for illegal non-atomic operation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137520 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12The VPERM2F128 is a AVX instruction which permutes between two 256-bitBruno Cardoso Lopes
vectors. It operates on 128-bit elements instead of regular scalar types. Recognize shuffles that are suitable for VPERM2F128 and teach the x86 legalizer how to handle them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137519 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Move code around and add commentsBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137518 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Define unaligned load and store. Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137515 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12ARM expansion of pre-indexed store pseudos should maintain memoperands.Jim Grosbach
Partial fix for rdar://9945172. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137513 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Add checks for the landingpad instruction's clause values to make sure thatBill Wendling
they're the correct type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137511 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Fix some remaining issues with decoding ARM-mode memory instructions, and ↵Owen Anderson
add another batch of tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137502 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Initial commit of the 'landingpad' instruction.Bill Wendling
This implements the 'landingpad' instruction. It's used to indicate that a basic block is a landing pad. There are several restrictions on its use (see LangRef.html for more detail). These restrictions allow the exception handling code to gather the information it needs in a much more sane way. This patch has the definition, implementation, C interface, parsing, and bitcode support in it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137501 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Fix decoding of ARM-mode STRH.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137499 91177308-0d34-0410-b5e6-96231b3b80d8
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