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2012-04-03ARMDisassembler: drop bogus dependency on ARMCodeGenDylan Noblesmith
And indirectly, a dependency on most of the core LLVM optimization libraries. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153957 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-02Move getOpcodeName from the various target InstPrinters into the superclass ↵Benjamin Kramer
MCInstPrinter. All implementations used the same code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153866 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-02Remove getInstructionName from MCInstPrinter implementations in favor of ↵Craig Topper
using the instruction name table from MCInstrInfo. Reduces static data in the InstPrinter implementations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153863 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-02Make MCInstrInfo available to the MCInstPrinter. This will be used to remove ↵Craig Topper
getInstructionName and the static data it contains since the same tables are already in MCInstrInfo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153860 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-31Add a 2 byte safety margin in offset computations.Jakob Stoklund Olesen
ARMConstantIslandPass still has bugs where jump table compression can cause constant pool entries to go out of range. Add a safety margin of 2 bytes when placing constant islands, but use the real max displacement for verification. <rdar://problem/11156595> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153789 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-31Add more debugging output to ARMConstantIslandPass.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153788 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30ARM fix encoding fixup resolution for ldrd and friends.Jim Grosbach
The 8-bit payload is not contiguous in the opcode. Move the upper nibble over 4 bits into the correct place. rdar://11158641 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153780 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30ARM assembler should prefer non-aliases encoding of cmp.Jim Grosbach
When an immediate is both a value [t2_]so_imm and a [t2_]so_imm_neg, we want to use the non-negated form to make sure we prefer the normal encoding, not the aliased encoding via the negation of, e.g., 'cmp.w'. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153770 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30ARM encoding for VSWP got the second operand incorrect.Jim Grosbach
Make the non-tied register operand names line up with what the base class encoding handler expects. rdar://11157236 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153766 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30ARM can only use narrow encoding for low regs.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153765 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30ARM integrated assembler should encoding choice for add/sub imm.Jim Grosbach
For 'adds r2, r2, #56' outside of an IT block, the 16-bit encoding T2 can be used for this syntax. Prefer the narrow encoding when possible. rdar://11156277 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153759 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30ARM assembly parsing needs to be paranoid about negative immediates.Jim Grosbach
Make sure to treat immediates as unsigned when doing relative comparisons. rdar://11153621 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153753 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30Ensure conditional BL instructions for ARM are given the fixup ↵James Molloy
fixup_arm_condbranch. Patch by Tim Northover! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153737 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-30ARM target should allow codegenprep to duplicate ret instructions to enable ↵Evan Cheng
tailcall opt. rdar://11140249 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153717 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-29Invalidate liveness in ARMConstantIslandPass.Jakob Stoklund Olesen
This pass splits basic blocks to insert constant islands, and it doesn't recompute the live-in lists. No later passes depend on accurate liveness information. This fixes PR12410 where the machine code verifier was complaining. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153700 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-29Prefer even-odd D-register pairs.Jakob Stoklund Olesen
We are sometimes allocatinog from the DPair register class which contains odd-even pairs in addition to the Q registers. Place the Q registers first in the DPair allocation order as they can be copied with a single instruction. The odd-even pairs should only be allocated as a last resort. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153699 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-29Try using vmov.i32 to materialize FP32 constants that can't be materialized byLang Hames
vmov.f32. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153696 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-29ARM assembly 'cmp lr, #0' should not encode using 'cmn'.Jim Grosbach
The CMP->CMN alias was matching for an immediate of zero when it should only match for negative values. rdar://11129224 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153689 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-29Handle register copies for the new ARM register classes.Jakob Stoklund Olesen
ARM recently gained DPair, DTriple, and DQuad register classes. Update copyPhysReg() to handle copies in these register classes. No test case, it is difficult to make the register allocator emit the odd copies reliably. The missing DPair copy caused a failure on partialsums in the nightly test suite. <rdar://problem/11147997> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153686 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-28Don't kill the base register when expanding strd.Jakob Stoklund Olesen
When an strd instruction doesn't get the registers it wants, it can be expanded into two str instructions. Make sure the first str doesn't kill the base register in the case where the base and data registers are identical: t2STRi12 %R0<kill>, %R0, 4, pred:14, pred:%noreg t2STRi12 %R2<kill>, %R0, 8, pred:14, pred:%noreg <rdar://problem/11101911> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153611 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-28Preserve implicit defs in ARMLoadStoreOptimizer.Jakob Stoklund Olesen
When a number of sub-register VLRDS instructions are combined into a VLDM, preserve any super-register implicit defs. This is required to keep the register scavenger and machine code verifier happy. Enable machine code verification after ARMLoadStoreOptimizer. ARM/2012-01-26-CopyPropKills.ll was failing because of this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153610 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-28Spill DPair registers, not just QPR.Jakob Stoklund Olesen
The arm_neon intrinsics can create virtual registers from the DPair register class which allows both even-odd and odd-even D-register pairs. This fixes PR12389. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153603 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-28Revert r153516: "Invalidate liveness in Thumb2ITBlockPass."Jakob Stoklund Olesen
Revert r153519: "ARMLoadStoreOptimizer invalidates register liveness." These patches caused miscompilations in povray by turning off branch folding's updating of live-in lists. It turns out the the late scheduler depends on the live-in lists, even if it doesn't need correct kill flags. <rdar://problem/11139228> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153593 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-28Fixup VST1.32 with writeback instruction. Also re-factor non-writeback version.Richard Barton
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153573 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-27ARMLoadStoreOptimizer invalidates register liveness.Jakob Stoklund Olesen
This pass tries to update kill flags, but there are still many bugs. Passes after the load/store optimizer don't need accurate liveness, so don't even try. <rdar://problem/11101911> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153519 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-27Invalidate liveness in Thumb2ITBlockPass.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153516 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-27Prune some includesCraig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153502 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-27Remove unnecessary llvm:: qualificationsCraig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153500 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-26ARM has a peephole optimization which looks for a def / use pair. The defEvan Cheng
produces a 32-bit immediate which is consumed by the use. It tries to fold the immediate by breaking it into two parts and fold them into the immmediate fields of two uses. e.g movw r2, #40885 movt r3, #46540 add r0, r0, r3 => add.w r0, r0, #3019898880 add.w r0, r0, #30146560 ; However, this transformation is incorrect if the user produces a flag. e.g. movw r2, #40885 movt r3, #46540 adds r0, r0, r3 => add.w r0, r0, #3019898880 adds.w r0, r0, #30146560 Note the adds.w may not set the carry flag even if the original sequence would. rdar://11116189 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153484 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-26Prune some includes and forward declarations.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153429 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-26Prune includes and replace uses of ARMRegisterInfo.h with ARMBaeRegisterInfo.hCraig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153422 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-25Replace uses of ARMBaseInstrInfo and ARMTargetMachine with the Base versions.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153421 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-25Prune some includes and forward declarations.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153415 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-23ARM tidy up ARMConstantIsland.cpp.Jim Grosbach
No functional change, just tidy up the code and nomenclature a bit. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153347 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-22Added soft fail checks for the disassembler when decoding some corner cases ↵Silviu Baranga
of the STRD, STRH, LDRD, LDRH, LDRSH and LDRSB instructions on ARM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153252 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-22Added soft fail cases for the disassembler when decoding LDRSBT, LDRHT or ↵Silviu Baranga
LDRSHT instruction on ARM git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153251 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-22Added soft fail cases for the disassembler when decoding MUL instructions on ↵Silviu Baranga
ARM. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153250 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-21Fix ARM disassembly of VST1 and VST2 instructions with writeback. And add testKevin Enderby
case for all opcodes handed by DecodeVSTInstruction() in ARMDisassembler.cpp . git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153218 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-20Change conditional instructions definitions, e.g. ANDCC, ARMPseudoExpand and ↵Evan Cheng
t2PseudoExpand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153135 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-20remove unused variableMatt Beaumont-Gay
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153116 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-20Require a base pointer for stack realignment when SP may vary dynamically.Bob Wilson
ARMBaseRegisterInfo::canRealignStack was checking for variable-sized objects but not for stack adjustments around calls. Use hasReservedCallFrame() to check for both. The hasBasePointer function was already correctly checking both conditions, so the effect of this was that a base pointer would be used without checking whether the base pointer register could be reserved. I don't have a small testcase for this. <rdar://problem/11075906> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153110 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-20Remove some redundant checks.Bob Wilson
ARMFrameLowering::hasReservedCallFrame is already checking for variable sized objects, so there's no point in checking it twice. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153109 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-20Fix assembling ARM vst2 instructions with double-spaced registers.Kevin Enderby
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153099 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-20ARM non-scattered MachO relocations for movw/movt.Jim Grosbach
Needed when building -mdynamic-no-pic code. rdar://10459256 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153097 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-20The ARM instructions that have an unpredictable behavior when the pc ↵Silviu Baranga
register operand is given now fail with soft fail. Modified the regression tests to reflect this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153089 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-20Test Commit - add a newlineRichard Barton
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153083 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-19ARM branch relaxation for unconditional t1 branches.Jim Grosbach
rdar://11059157 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153055 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-19ARM assembly, accept optional '#' on lane index number.Jim Grosbach
rdar://11057160 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153053 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-19Perform mul combine when multiplying wiht negative constants.Anton Korobeynikov
Patch by Weiming Zhao! This fixes PR12212 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153049 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-17Reorder includes to match coding standards. Fix an issue or two exposed by that.Craig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152978 91177308-0d34-0410-b5e6-96231b3b80d8
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