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2012-06-19Move the support for using .init_array from ARM to the genericRafael Espindola
TargetLoweringObjectFileELF. Use this to support it on X86. Unlike ARM, on X86 it is not easy to find out if .init_array should be used or not, so the decision is made via TargetOptions and defaults to off. Add a command line option to llc that enables it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158692 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-18revert r158660, since Chris has some issues with this patch (namely using ↵Nuno Lopes
code to reprent information only used by the compiler) Original commit msg: add the 'alloc' metadata node to represent the size of offset of buffers pointed to by pointers. This metadata can be attached to any instruction returning a pointer git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158688 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-18ARM: use NOEN loads and stores if possible when handling struct byval.Manman Ren
This change is to be enabled in clang. rdar://9877866 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158684 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-18Allow up to 64 functional units per processor itinerary.Hal Finkel
This patch changes the type used to hold the FU bitset from unsigned to uint64_t. This will be needed for some upcoming PowerPC itineraries. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158679 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-18Added accessors for getting coff_relocation infoMarshall Clow
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158675 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-18ARM: Define generic HINT instruction.Jim Grosbach
The NOP, WFE, WFI, SEV and YIELD instructions are all hints w/ a different immediate value in bits [7,0]. Define a generic HINT instruction and refactor NOP, WFI, WFI, SEV and YIELD to be assembly aliases of that. rdar://11600518 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158674 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-18add the 'alloc' metadata node to represent the size of offset of buffers ↵Nuno Lopes
pointed to by pointers. This metadata can be attached to any instruction returning a pointer git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158660 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-18This change handles a another case for generating the bic instruction Joel Jones
when a compile time constant is known. This occurs when implicitly zero extending function arguments from 16 bits to 32 bits. The 8 bit case doesn't need to be handled, as the 8 bit constants are encoded directly, thereby not needing a separate load instruction to form the constant into a register. <rdar://problem/11481151> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158659 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-18Temporarily revert r158087.Chandler Carruth
This patch causes problems when both dynamic stack realignment and dynamic allocas combine in the same function. With this patch, we no longer build the epilog correctly, and silently restore registers from the wrong position in the stack. Thanks to Matt for tracking this down, and getting at least an initial test case to Chad. I'm going to try to check a variation of that test case in so we can easily track the fixes required. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158654 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-17Now that SROA can form alloca's for dynamic vector accesses, further improve ↵Pete Cooper
it to be able to replace operations on these vector alloca's with insert/extract element insts git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158623 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16Disable the right instance of TheJIT, this one is only used in asserts.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158610 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16Guard private fields that are unused in Release builds with #ifndef NDEBUG.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158608 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16Cleanup trip-count finding for PPC CTR loops (and some bug fixes).Hal Finkel
This cleans up the method used to find trip counts in order to form CTR loops on PPC. This refactoring allows the pass to find loops which have a constant trip count but also happen to end with a comparison to zero. This also adds explicit FIXMEs to mark two different classes of loops that are currently ignored. In addition, we now search through all potential induction operations instead of just the first. Also, we check the predicate code on the conditional branch and abort the transformation if the code is not EQ or NE, and we then make sure that the branch to be transformed matches the condition register defined by the comparison (multiple possible comparisons will be considered). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158607 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16Teach BBVectorize to combine, when possible, or discard metadata when fusing ↵Hal Finkel
instructions. The present implementation handles only TBAA and FP metadata, discarding everything else. For debug metadata, the current behavior is maintained (the debug metadata associated with one of the instructions will be kept, discarding that attached to the other). This should address PR 13040. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158606 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16Move the Metadata merging methods from GVN and make them public in MDNode.Hal Finkel
There are other passes, BBVectorize specifically, that also need some of this functionality. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158605 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16Implement irpc. Extracted from a patch by the PaX team. I just added the test.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158604 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16*no need to pollute Intel syntax with bonus mnemonics; operand size is ↵Kay Tiong Khoo
explicitly specified git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158603 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16Mips/AsmParser/CMakeLists.txt: Fix dependency.NAKAMURA Takumi
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158602 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16It's not deterministic to iterate over SmallPtrSet. Replace it with ↵Evan Cheng
SmallSetVector. Patch by Daniel Reynaud. rdar://11671029 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158594 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16Fix crash from r158529 on Bullet.Pete Cooper
Dynamic GEPs created by SROA needed to insert extra "i32 0" operands to index through structs and arrays to get to the vector being indexed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158590 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16Don't call 'FilesToRemove[0]' when the vector is empty, even to computeChandler Carruth
the address of it. Found by a checking STL implementation used on a dragonegg builder. Sorry about this one. =/ git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158582 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-16Harden the Unix signals code to be more async signal safe.Chandler Carruth
This is likely only the tip of the ice berg, but this particular bug caused any double-free on a glibc system to turn into a deadlock! It is not generally safe to either allocate or release heap memory from within the signal handler. The 'pop_back()' in RemoveFilesToRemove was deleting memory and causing the deadlock. What's worse, eraseFromDisk in PathV1 has lots of allocation and deallocation paths. We even passed 'true' in a place that would have caused the *signal handler* to try to run the 'system' system call and shell out to 'rm -rf'. That was never going to work... This patch switches the file removal to use a vector of strings so that the exact text needed for the 'unlink' system call can be stored there. It switches the loop to be a boring indexed loop, and directly calls unlink without looking at the error. It also works quite hard to ensure that calling 'c_str()' is safe, by ensuring that the non-signal-handling code path that manipulates the vector always leaves it in a state where every element has already had 'c_str()' called at least once. I dunno exactly how overkill this is, but it fixes the deadlock-on-double free issue, and seems likely to prevent any other issues from sneaking up. Sorry for not having a test case, but I *really* don't know how to test signal handling code easily.... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158580 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Remove final verification in RABasic.Jakob Stoklund Olesen
We now have a proper machine code verifier pass between register allocation and rewriting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158577 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Print out register number in InlineSpiller.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158575 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Accept null PhysReg arguments to checkRegMaskInterference.Jakob Stoklund Olesen
Calling checkRegMaskInterference(VirtReg) checks if VirtReg crosses any regmask operands, regardless of the registers they clobber. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158563 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Fix the encoding of the armv7m (MClass) for MSR registers other than aspr,Kevin Enderby
iaspr, espr and xpsr which also needed to have 0b10 in their mask encoding bits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158560 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15ARM: optimization for sub+abs.Manman Ren
This patch will optimize abs(x-y) FROM sub, movs, rsbmi TO subs, rsbmi For abs, we will use cmp instead of movs. This is necessary because we already have an existing peephole pass which optimizes away cmp following sub. rdar: 11633193 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158551 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15*fixed to separate mnemonic from operands with tabKay Tiong Khoo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158543 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15LSR: fix expansion of scaled reg in non-address type formulae.Andrew Trick
For non-address users, Base and Scaled registers are not specially associated to fit an address mode, so SCEVExpander should apply normal expansion rules. Otherwise we may sink computation into inner loops that have already been optimized. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158537 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15LSR fix: "Special" users are just like "Basic" users but allow -1 scale.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158536 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Remove assignments which aren't used afterwards.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158535 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Allow SROA to split up an array of vectors into multiple vectors, even when ↵Pete Cooper
the vectors are dynamically indexed git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158529 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Some optimizations done by globalopt are safe only for internal linkage, notRafael Espindola
linkonce linkage. For example, it is not valid to add unnamed_addr. This also fixes a crash in g++.dg/opt/static5.C. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158528 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Preserve <undef> flags in ARMExpandPseudo.Jakob Stoklund Olesen
This probably mostly shows up in bugpoint-generated code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158527 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Use regunit liveness in RegisterCoalescer when it is available.Jakob Stoklund Olesen
We only do very limited physreg coalescing now, but we still merge virtual registers into reserved registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158526 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Factor macro argument parsing into helper methods and add support for .irp.Rafael Espindola
Patch extracted from a larger one by the PaX team. I added the testcases and tightened error handling a bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158523 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Fix issues (infinite loop and/or crash) with self-referential instructions, forDuncan Sands
example degenerate phi nodes and binops that use themselves in unreachable code. Thanks to Charles Davis for the testcase that uncovered this can of worms. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158508 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Move AVX version of convert instructions that write to GPRs to the Op1 table.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158497 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Had a closing brace inside an #ifdef -- oops!Marshall Clow
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158485 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-15Adding acessors to COFFObjectFile so that clients can get at the ↵Marshall Clow
(non-generic) bits git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158484 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-14Recommit r158407: Allow SROA to look at a vector type and see if the offset ↵Pete Cooper
is out of range to be replaced with a scalar access. Now with additional fix and test for indexing into a vector inside a struct git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158479 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-14Implement the isSafeToDiscardIfUnused predicate and use it in globalopt andRafael Espindola
globaldce. Globaldce was already removing linkonce globals, but globalopt was not. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158476 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-14Move X86::VCVTTSD2SIrr from the 2 operand to 1 operand MemRegOp table.Pete Cooper
Can someone with more knowledge of this please look at other entries to see if others need moved. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158474 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-14Fix coding style violations. Remove white spaces and tabs.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158471 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-141. introduce MipsPat in place of Pat in order to exclude those fromAkira Hatanaka
being used by Mips16 or Micro Mips 2. clean up a few lines too long encountered Patch by Reed Kotler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158470 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-14Make machine verifier check the first instruction of the last bundle instead ofAkira Hatanaka
the last instruction of a basic block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158468 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-14Make comment slightly more helpful.Lang Hames
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158467 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-14Revert r158454: Allow SROA to look at a vector type... Its breaking the ↵Pete Cooper
vectorise buildbot This reverts commit 12c1f86ffa731e2952c80d2cc577000c96b8962c. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158462 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-14misched: disable SSA check pending PR13112.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158461 91177308-0d34-0410-b5e6-96231b3b80d8
2012-06-14Recommit r158407: Allow SROA to look at a vector type and see if the offset ↵Pete Cooper
is out of range to be replaced with a scalar access. Now with additional fix and test for indexing into a vector inside a struct git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158454 91177308-0d34-0410-b5e6-96231b3b80d8
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