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path: root/lib/Target/ARM/Disassembler/ThumbDisassemblerCore.h
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2011-04-15Thumb2 BFC was insufficiently encoded.Johnny Chen
rdar://problem/9292717 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129619 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-14Add sanity checkings for Thumb2 Load/Store Register Exclusive family of ↵Johnny Chen
operations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129531 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-13Thumb disassembler did not handle tBRIND (indirect branch) properly.Johnny Chen
rdar://problem/9280370 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129480 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-13The LDR*T/STR*T (unpriviledged load/store) operations don't take SP or PC as Rt.Johnny Chen
rdar://problem/9279440 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129469 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-13Check the corner cases for t2LDRSHi12 correctly and mark invalid encodings ↵Johnny Chen
as such. rdar://problem/9276651 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129462 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-13Fix a bug where for t2MOVCCi disassembly, the TIED_TO register operand was ↵Johnny Chen
not properly handled. rdar://problem/9276427 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129456 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12Add sanity check for Ld/St Dual forms of Thumb2 instructions.Johnny Chen
rdar://problem/9273947 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129411 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12The Thumb2 RFE instructions need to have their second halfword fully specified.Johnny Chen
In addition, the base register is not rGPR, but GPR with th exception that: if n == 15 then UNPREDICTABLE rdar://problem/9273836 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129391 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12Add bad register checks for Thumb2 Ld/St instructions.Johnny Chen
rdar://problem/9269047 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129387 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12The Thumb2 Ld, St, and Preload instructions with the i12 forms should have ↵Johnny Chen
its Inst{23} be specified as '1' (add = TRUE). Also add a utility function for Thumb2. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129377 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12Print out a debug message when the reglist fails the sanity check for Thumb ↵Johnny Chen
Ld/St Multiple. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129365 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12A8.6.16 BJohnny Chen
Encoding T1 (tBcc) if cond == '1110' then UNDEFINED; rdar://problem/9268681 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129325 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-11Thumb disassembler was erroneously rejecting "blx sp" instruction.Johnny Chen
rdar://problem/9267838 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129320 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-11Fix the bug where the immediate shift amount for Thumb logical shift ↵Johnny Chen
instructions are incorrectly disassembled. rdar://problem/9266265 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129298 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-11Adding support for printing operands symbolically to llvm's public 'C'Kevin Enderby
disassembler API. Hooked this up to the ARM target so such tools as Darwin's otool(1) can now print things like branch targets for example this: blx _puts instead of this: blx #-36 And even print the expression encoded in the Mach-O relocation entried for things like this: movt r0, :upper16:((_foo-_bar)+1234) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129284 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-08Sanity check the option operand for DMB/DSB.Johnny Chen
PR9648 rdar://problem/9257634 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129146 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-28Fix ARM disassembly for PLD/PLDW/PLI which suffers from code rot and add ↵Johnny Chen
some test cases. Add comments to ThumbDisassemblerCore.h for recent change made for t2PLD disassembly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128417 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-26Fixed the t2PLD and friends disassembly and add two test cases.Johnny Chen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128322 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-25Fix DisassembleThumb2DPReg()'s handling of RegClass. Cannot hardcode ↵Johnny Chen
GPRRegClassID. Also add some test cases. rdar://problem/9189829 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128304 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-25DisassembleThumb2LdSt() did not handle t2LDRs correctly with respect to ↵Johnny Chen
RegClass. Add two test cases. rdar://problem/9182892 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128299 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-25Modify DisassembleThumb2LdStEx() to be more robust/correct in light of ↵Johnny Chen
recent change to t2LDREX/t2STREX instructions. Add two test cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128293 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-25Modify the wrong logic in the assert of DisassembleThumb2LdStDual() (the ↵Johnny Chen
register classes were changed), modify the comment to be up-to-date, and add a test case for A8.6.66 LDRD (immediate) Encoding T1. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128252 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-24T2 Load/Store Multiple:Johnny Chen
These instructions were changed to not embed the addressing mode within the MC instructions We also need to update the corresponding assert stmt. Also add a test case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128240 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22Avoid -Wunused-variable in -asserts buildsMatt Beaumont-Gay
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128048 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18The disassembler for Thumb was wrongly adding 4 to the computed imm32 offset.Johnny Chen
Remove the offending logic and update the test cases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127843 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17It used to be that t_addrmode_s4 was used for both:Johnny Chen
o A8.6.195 STR (register) -- Encoding T1 o A8.6.193 STR (immediate, Thumb) -- Encoding T1 It has been changed so that now they use different addressing modes and thus different MC representation (Operand Infos). Modify the disassembler to reflect the change, and add relevant tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127833 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28Add missing whitespace in the formatting.Kevin Enderby
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126687 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28Fix the arm's disassembler for blx that was building an MCInst without theKevin Enderby
needed two predicate operands before the imm operand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126662 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18Add assembly parsing support for "msr" and also fix its encoding. Also addBruno Cardoso Lopes
testcases for the disassembler to make sure it still works for "msr". git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125948 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14Fix encoding and add parsing support for the arm/thumb CPS instruction:Bruno Cardoso Lopes
- Add custom operand matching for imod and iflags. - Rename SplitMnemonicAndCC to SplitMnemonic since it splits more than CC from mnemonic. - While adding ".w" as an operand, don't change "Head" to avoid passing the wrong mnemonic to ParseOperand. - Add asm parser tests. - Add disassembler tests just to make sure it can catch all cps versions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125489 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-08Revert both r121082 (which broke a bunch of constant pool stuff) and r125074 ↵Owen Anderson
(which worked around it). This should get us back to the old, correct behavior, though it will make the integrated assembler unhappy for the time being. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125127 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-07Second attempt at converting Thumb2's LDRpci, including updating the ↵Owen Anderson
gazillion places that need to know about it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121082 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30Simplify the encoding of reg+/-imm12 values that allow PC-relative encoding. ↵Owen Anderson
This allows the Thumb2 encoding to share code with the ARM encoding, which gets use fixup support for free. It also allows us to fold away at least one codegen-only pattern. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120481 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-29Pseudo-ize Thumb2 jump tables with explicit MC lowering to the rawJim Grosbach
instructions. This simplifies instruction printing and disassembly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120333 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-16Encode the multi-load/store instructions with their respective modes ('ia',Bill Wendling
'db', 'ib', 'da') instead of having that mode as a separate field in the instruction. It's more convenient for the asm parser and much more readable for humans. <rdar://problem/8654088> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119310 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-03Add support to match @llvm.prefetch to pld / pldw / pli. rdar://8601536.Evan Cheng
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118152 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-13Detabify and clean up 80 column violations.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116454 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-17Change ARM PKHTB and PKHBT instructions to use a shift_imm operand to avoidBob Wilson
printing "lsl #0". This fixes the remaining parts of pr7792. Make corresponding changes for encoding/decoding these instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111251 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13Move the Thumb2 SSAT and USAT optional shift operator out of theBob Wilson
instruction opcode. This fixes part of PR7792. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111047 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-13Refactor the code for disassembling Thumb2 saturate instructions along theBob Wilson
same lines as the change I made for ARM saturate instructions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111029 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-11Changed the format of DMBsy, DSBsy, and friends from Pseudo to MiscFrm.Johnny Chen
Added two test cases to arm-tests.txt. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110880 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-30Many Thumb2 instructions can reference the full ARM register set (i.e.,Jim Grosbach
have 4 bits per register in the operand encoding), but have undefined behavior when the operand value is 13 or 15 (SP and PC, respectively). The trivial coalescer in linear scan sometimes will merge a copy from SP into a subsequent instruction which uses the copy, and if that instruction cannot legally reference SP, we get bad code such as: mls r0,r9,r0,sp instead of: mov r2, sp mls r0, r9, r0, r2 This patch adds a new register class for use by Thumb2 that excludes the problematic registers (SP and PC) and is used instead of GPR for those operands which cannot legally reference PC or SP. The trivial coalescer explicitly requires that the register class of the destination for the COPY instruction contain the source register for the COPY to be considered for coalescing. This prevents errant instructions like that above. PR7499 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109842 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-16Add basic support to code-gen the ARM/Thumb2 bit-field insert (BFI) instructionJim Grosbach
and a combine pattern to use it for setting a bit-field to a constant value. More to come for non-constant stores. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108570 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-18Start TargetRegisterClass indices at 0 instead of 1, so thatDan Gohman
MachineRegisterInfo doesn't have to confusingly allocate an extra entry. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106296 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Modified some assert() msg strings; no other functionality change.Johnny Chen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102008 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-21Thumb instructions which have reglist operands at the end and predicate operandsJohnny Chen
before reglist were not properly handled with respect to IT Block. Fix that by creating a new method ARMBasicMCBuilder::DoPredicateOperands() used by those instructions for disassembly. Add a test case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101974 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Better error-handling of getBitFieldInvMask() where msb < lsb (encoding error),Johnny Chen
instead of just asserting. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101942 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-20Better error-handling for DisassembleThumb2DPModImm() with 2-reg operands whereJohnny Chen
d==15 is considered illegal. Return false instead of assert(). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101852 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-19Better error-handling for DisassembleThumb2DPSoReg() where the 3-reg operandJohnny Chen
instructions should have Rd (Inst{11-8}) != 0b1111. Ref: A6.3 32-bit Thumb instruction encoding A6.3.11 Data-processing (shifted register) git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101788 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15Wrap the error msgs in DEBUG() macro so that they won't appear in NDEBUG build.Johnny Chen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101329 91177308-0d34-0410-b5e6-96231b3b80d8
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