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2011-11-02Try to lower memset/memcpy/memmove to vector instructions on ARM where the ↵Lang Hames
alignment permits. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143582 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-02Add support for comparing integer non-legal types.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143559 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-02Fix the issue that r143552 was trying to address the _right_ way. ↵Owen Anderson
One-register lists are legal on LDM/STM instructions, but we should not print the PUSH/POP aliases when they appear. This fixes round tripping on this instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143557 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-02The rules disallowing single-register reglist operands only apply to the POP ↵Owen Anderson
alias, not to LDM/STM instructions. Revert r143552. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143553 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-02Register list operands are not allowed to contain only a single register. ↵Owen Anderson
Alternate encodings are used in that case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143552 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-02Factor out an EmitIntExt function. No functionality change intended.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143547 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-02Factor out a SelectTrunc function. No functionality change intended.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143523 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-01ARM label operands can be quoted.Jim Grosbach
For example, labels from Objective-C sources. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143511 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-01ARM label operands can have an optional '#' before them.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143510 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-01Fix disassembly of some VST1 instructions.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143507 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-01ARM VLD/VST assembly parsing for symbolic address operands.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143413 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-31ARM VST1 w/ writeback assembly parsing and encoding.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143369 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-31ARM writeback vs. stride operands for VST/VLD.Jim Grosbach
The _fixed variants have a writeback operand, but not a stride operand. Split the conditional flag to distinguish the cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143356 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-31More not-crashing NEON disassembly updates for the vld refactoring.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143351 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-29Revert r143206, as there are still some failing tests.Dan Gohman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143262 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-28ARM mode 'mov' to 'mvn' assembler alias.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143237 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-28Add Thumb2 alias for "mov Rd, #imm" to "mvn Rd, #~imm".Jim Grosbach
When '~imm' is encodable as a t2_so_imm but plain 'imm' is not. For example, mov r2, #-3 becomes mvn r2, #2 rdar://10349224 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143235 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-28Specify that the high bit of the alignment field is fixed to 0 on these ↵Owen Anderson
instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143220 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-28Reapply r143202, with a manual decoding hook for SWP. This change ↵Owen Anderson
inadvertantly exposed a decoding ambiguity between SWP and CPS that the auto-generated decoder can't handle. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143208 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-28Reapply r143177 and r143179 (reverting r143188), with schedulerDan Gohman
fixes: Use a separate register, instead of SP, as the calling-convention resource, to avoid spurious conflicts with actual uses of SP. Also, fix unscheduling of calling sequences, which can be triggered by pseudo-two-address dependencies. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143206 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-28Revert r143202.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143203 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-28Specify fixed bits on CPS instructions to enable roundtripping.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143202 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-28Thumb2 ADD/SUB instructions encoding selection outside IT block.Jim Grosbach
Outside an IT block, "add r3, #2" should select a 32-bit wide encoding rather than generating an error indicating the 16-bit encoding is only legal in an IT block (outside, the 'S' suffic is required for the 16-bit encoding). rdar://10348481 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143201 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-28Speculatively disable Dan's commits 143177 and 143179 to see ifDuncan Sands
it fixes the dragonegg self-host (it looks like gcc is miscompiled). Original commit messages: Eliminate LegalizeOps' LegalizedNodes map and have it just call RAUW on every node as it legalizes them. This makes it easier to use hasOneUse() heuristics, since unneeded nodes can be removed from the DAG earlier. Make LegalizeOps visit the DAG in an operands-last order. It previously used operands-first, because LegalizeTypes has to go operands-first, and LegalizeTypes used to be part of LegalizeOps, but they're now split. The operands-last order is more natural for several legalization tasks. For example, it allows lowering code for nodes with floating-point or vector constants to see those constants directly instead of seeing the lowered form (often constant-pool loads). This makes some things somewhat more complicated today, though it ought to allow things to be simpler in the future. It also fixes some bugs exposed by Legalizing using RAUW aggressively. Remove the part of LegalizeOps that attempted to patch up invalid chain operands on libcalls generated by LegalizeTypes, since it doesn't work with the new LegalizeOps traversal order. Instead, define what LegalizeTypes is doing to be correct, and transfer the responsibility of keeping calls from having overlapping calling sequences into the scheduler. Teach the scheduler to model callseq_begin/end pairs as having a physical register definition/use to prevent calls from having overlapping calling sequences. This is also somewhat complicated, though there are ways it might be simplified in the future. This addresses rdar://9816668, rdar://10043614, rdar://8434668, and others. Please direct high-level questions about this patch to management. Delete #if 0 code accidentally left in. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143188 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-28Eliminate LegalizeOps' LegalizedNodes map and have it just call RAUWDan Gohman
on every node as it legalizes them. This makes it easier to use hasOneUse() heuristics, since unneeded nodes can be removed from the DAG earlier. Make LegalizeOps visit the DAG in an operands-last order. It previously used operands-first, because LegalizeTypes has to go operands-first, and LegalizeTypes used to be part of LegalizeOps, but they're now split. The operands-last order is more natural for several legalization tasks. For example, it allows lowering code for nodes with floating-point or vector constants to see those constants directly instead of seeing the lowered form (often constant-pool loads). This makes some things somewhat more complicated today, though it ought to allow things to be simpler in the future. It also fixes some bugs exposed by Legalizing using RAUW aggressively. Remove the part of LegalizeOps that attempted to patch up invalid chain operands on libcalls generated by LegalizeTypes, since it doesn't work with the new LegalizeOps traversal order. Instead, define what LegalizeTypes is doing to be correct, and transfer the responsibility of keeping calls from having overlapping calling sequences into the scheduler. Teach the scheduler to model callseq_begin/end pairs as having a physical register definition/use to prevent calls from having overlapping calling sequences. This is also somewhat complicated, though there are ways it might be simplified in the future. This addresses rdar://9816668, rdar://10043614, rdar://8434668, and others. Please direct high-level questions about this patch to management. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143177 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-28ARM Allow 'q' registers in VLD/VST vector lists.Jim Grosbach
Just treat it as if the constituent D registers where specified. rdar://10348896 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143167 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-27Add some NEON stores to the VLD decoding hook that were accidentally omitted ↵Owen Anderson
previously. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143162 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-27Also set addrmode6 alignment when align==size.Jakob Stoklund Olesen
Previously, we were only setting the alignment bits on over-aligned loads and stores. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143160 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-27ARM isel for vld1, opcode selection for register stride post-index pseudos.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143158 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-27Avoid partial CPSR dependency from loop backedges. rdar://10357570Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143145 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-27Thumb2 t2LDMDB[_UPD] assembly parsing to recognize .w suffix.Jim Grosbach
rdar://10348844 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143110 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-27Thumb2 t2MVNi assembly parsing to recognize ".w" suffix.Jim Grosbach
rdar://10348584 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143108 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-27A branch predicated on a constant can just FastEmit an unconditional branch.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143086 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-26Add a TODO comment. FastISel works by parsing each basic block from the bottomChad Rosier
up. Thus, improving the support for compares is goodness because it increases the number of terminator instructions we can handle. This creates many more opportunities for target specific fast-isel. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143079 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-26Factor a little more code into EmitCmp, which should have been done in the firstChad Rosier
place. No functional change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143078 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-26Use EmitCmp in SelectBranch. No functional change intended.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143076 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-26Factor out an EmitCmp function that can be used by both SelectCmp andChad Rosier
SelectBranch. No functional change intended. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143072 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-26Thumb2 ldr pc-relative encoding fixes.Jim Grosbach
We were parsing label references to the i12 encoding, which isn't right. They need to go to the pci variant instead. More of rdar://10348687 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143068 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-26ARM parse parenthesized expressions for label references.Jim Grosbach
Partial fix for rdar://10348687. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143063 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-26Make sure short memsets on ARM lower to stores, even when optimizing for size.Lang Hames
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143055 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-26Thumb2 remove redundant ".w" suffix from t2MVNCCi pattern.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143034 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-26Revert r142530 at least temporarily while a discussion is had on ↵James Molloy
llvm-commits regarding exactly how much optsize should optimize for size over performance. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143023 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-26Use a worklist to prevent the iterator from becoming invalidated because of ↵Bill Wendling
the 'removeSuccessor' call. Noticed in a Release+Asserts+Check buildbot. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143018 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-26Revert part of r142530. The patch potentially hurts performance especiallyEvan Cheng
on Darwin platforms where -Os means optimize for size without hurting performance. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143002 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-25ARM assembly parsing and encoding for VLD1 with writeback.Jim Grosbach
Four entry register lists. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142882 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24Nuke dead code. Nothing generates the VLD1d64QPseudo_UPD instruction.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142877 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24ARM assembly parsing and encoding for VLD1 w/ writeback.Jim Grosbach
Three entry register list variation. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142876 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24Don't crash on variable insertelement on ARM. PR10258.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142871 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24ARMConstantPoolMBB::print should print BB number.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142867 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24ARM assembly parsing and encoding for VLD1 w/ writeback.Jim Grosbach
One and two length register list variants. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142861 91177308-0d34-0410-b5e6-96231b3b80d8
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