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2010-10-30Overhaul memory barriers in the ARM backend. Radar 8601999.Bob Wilson
There were a number of issues to fix up here: * The "device" argument of the llvm.memory.barrier intrinsic should be used to distinguish the "Full System" domain from the "Inner Shareable" domain. It has nothing to do with using DMB vs. DSB instructions. * The compiler should never need to emit DSB instructions. Remove the ARMISD::SYNCBARRIER node and also remove the instruction patterns for DSB. * Merge the separate DMB/DSB instructions for options only used for the disassembler with the default DMB/DSB instructions. Add the default "full system" option ARM_MB::SY to the ARM_MB::MemBOpt enum. * Add a separate ARMISD::MEMBARRIER_MCR node for subtargets that implement a data memory barrier using the MCR instruction. * Fix up encodings for these instructions (except MCR). I also updated the tests and added a few new ones to check for DMB options that were not currently being exercised. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117756 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-30Add polly support to the build system.Tobias Grosser
Update the cmake and autoconf build system to compile polly as a shared library if it is checked out into tools/polly. In case polly is not checked out, nothing changes. This models the way clang can be added to llvm if checked out to tools/clang. Also rebuild configure. Patch contributed by ether. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117755 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-30Encode the register list operands for ARM mode LDM/STM instructions.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117753 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Some instructions end with an "ls" prefix, but it doesn't indicate that they areBill Wendling
conditional. Check for those instructions explicitly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117747 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Mult-alt constraint incremental development step 3.John Thompson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117746 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Teach machine cse to eliminate instructions with multiple physreg uses and ↵Evan Cheng
defs. rdar://8610857. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117745 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Remove hard tab characters.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117742 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-2980 column fix.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117741 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29trailing whitespaceJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117740 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29s/getNEONVcvtImm32/getNEONVcvtImm32OpValue/ to be consistent with other operandJim Grosbach
encoder functions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117738 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Fix fpscr <-> GPR latency info.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117737 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Be more strict on when we produce an undefined reference. In gas a file withRafael Espindola
just .type foo,@object will produce an undefined reference to foo. On the other hand, a file with just .weakref bar, foo will not. It is somewhat hard to support both in MC since both statements should create the symbols. It should be possible if we really need to by adding to the flags, but hopefully that is not necessary. With this patch we do not produce a undefined reference in any of those cases. The assembly file needs an actual use for the undefined reference to be present. This is in preparation for a patch implementing .weakref. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117735 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Apply a patch from Frits van Bommel to fix the CMake build.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117731 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Clean up indentation and other whitespace.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117728 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Remove trailing whitespace.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117727 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29trailing whitespaceJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117724 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Fix 80-column violation.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117722 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Change instcombine's getShuffleMask to represent undef with negative values.Bob Wilson
This code had previously used 2*N, where N is the mask length, to represent undef. That is not safe because the shufflevector operands may have more than N elements -- they don't have to match the result type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117721 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Remove DAG combiner patch to fold vector splats. Instcombiner does it now.Bob Wilson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117720 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Make instcombine a little more aggressive in combining vector shuffles.Bob Wilson
Allow splats even if they don't match either of the original shuffles, possibly due to undef entries in the shuffles masks. Radar 8597790. Also fix some 80-column violations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117719 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29add FIXMEJim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117718 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Convert ARM::MOVi2pieces to a true pseudo-instruction and expand it inJim Grosbach
the ARMExpandPseudos pass rather than during the asm lowering. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117714 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Update testcase since we're no longer doing the constant forwarding inline ↵Owen Anderson
with correlated value propagation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117712 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Handle comparison values we already have - this fixes the consumer-typesetEric Christopher
failure for llvm-gcc on arm fast isel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117710 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Give up on doing in-line instruction simplification during correlated value ↵Owen Anderson
propagation. Instruction simplification needs to be guaranteed never to be run on an unreachable block. However, earlier block simplifications may have changed the CFG to make block that were reachable when we began our iteration unreachable by the time we try to simplify them. (Note that this also means that our depth-first iterators were potentially being invalidated). This should not have a large impact on code quality, since later runs of instcombine should pick up these simplifications. Fixes PR8506. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117709 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Convert this test to .s form.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117708 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29ARM::MOVi32imm is expanded in ARMExpandPseudoInsts, so there's no need toJim Grosbach
handle it in the asm lowering. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117707 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Convert this test to .s form.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117704 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Fix typo.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117703 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29ARM encoding information for CLREX, SWP and SWPB. Add comment for sjlj ↵Jim Grosbach
pseudos and a FIXME for TLS. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117702 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29not is testing for a normal exit with a non-zero value. It shouldn'tDan Gohman
return success if the child process is killed with a signal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117701 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Convert this test to .s form.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117699 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Make ScalarEvolution::forgetLoop forget all contained loops too, becauseDan Gohman
they may have ValuesAtScopes map entries referencing their outer loops. This fixes a user-after-free reported in PR8471. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117698 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Convert this test to .s form.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117696 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29ARM mode LDREX*/STREX* binary encodings.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117695 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Covert this test to .s form.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117694 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Convert this test to .s form.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117693 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Convert this test to .s form.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117690 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Convert this test to .s form.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117689 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Encoding information for ARM conditional move instructions.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117687 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Convert this test to .s form.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117686 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Convert this test to .s form.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117685 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Covert this test to .s form.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117684 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Convert this test to .s form.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117683 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Convert this test to .s form.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117682 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Convert this file to less fragile .s form.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117681 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Replace this test with the less fragile .s version. Still XFAIL'd, since ↵Owen Anderson
the ASM parser doesn't parse vabal yet. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117679 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Fix sign error.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117677 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Covert this test to a .s file to reduce fragility.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117676 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-29Avoiding overly aggressive latency scheduling. If the two nodes share anEvan Cheng
operand and one of them has a single use that is a live out copy, favor the one that is live out. Otherwise it will be difficult to eliminate the copy if the instruction is a loop induction variable update. e.g. BB: sub r1, r3, #1 str r0, [r2, r3] mov r3, r1 cmp bne BB => BB: str r0, [r2, r3] sub r3, r3, #1 cmp bne BB This fixed the recent 256.bzip2 regression. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117675 91177308-0d34-0410-b5e6-96231b3b80d8
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