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path: root/utils/TableGen/CodeEmitterGen.cpp
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* Propagate MCSubtargetInfo through TableGen's getBinaryCodeForInstr()David Woodhouse2014-01-28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200349 91177308-0d34-0410-b5e6-96231b3b80d8
* Support little-endian encodings in the FixedLenDecoderEmitterHal Finkel2013-12-17
| | | | | | | | | | | | | | | The convention used to specify the PowerPC ISA is that bits are numbered in reverse order (0 is the index of the high bit). To support this "little endian" encoding convention, CodeEmitterGen will reverse the bit numberings prior to generating the encoding tables. In order to generate a disassembler, FixedLenDecoderEmitter needs to do the same. This moves the bit reversal logic out of CodeEmitterGen and into CodeGenTarget (where it can be used by both CodeEmitterGen and FixedLenDecoderEmitter). This is prep work for disassembly support in the PPC backend (which is the only in-tree user of this little-endian encoding support). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@197532 91177308-0d34-0410-b5e6-96231b3b80d8
* Sort the #include lines for utils/...Chandler Carruth2012-12-04
| | | | | | | I've tried to find main moudle headers where possible, but the TableGen stuff may warrant someone else looking at it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169251 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix issue with invalid flat operand numberEvandro Menezes2012-11-09
| | | | | | | | | | Avoid iterating over list of operands beyond the number of operands in it. PS: this fixes issue with revision #167634. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167635 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix issue with invalid flat operand numberEvandro Menezes2012-11-09
| | | | | | | | | Avoid iterating over list of operands beyond the number of operands in it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167634 91177308-0d34-0410-b5e6-96231b3b80d8
* tblgen: Mechanically move dynamic_cast<> to dyn_cast<>.Sean Silva2012-10-10
| | | | | | | | | | Some of these dyn_cast<>'s would be better phrased as isa<> or cast<>. That will happen in a future patch. There are also two dyn_cast_or_null<>'s slipped in instead of dyn_cast<>'s, since they were causing crashes with just dyn_cast<>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165646 91177308-0d34-0410-b5e6-96231b3b80d8
* Re-work bit/bits value resolving in tblgenMichael Liao2012-09-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - This patch is inspired by the failure of the following code snippet which is used to convert enumerable values into encoding bits to improve the readability of td files. class S<int s> { bits<2> V = !if(!eq(s, 8), {0, 0}, !if(!eq(s, 16), {0, 1}, !if(!eq(s, 32), {1, 0}, !if(!eq(s, 64), {1, 1}, {?, ?})))); } Later, PR8330 is found to report not exactly the same bug relevant issue to bit/bits values. - Instead of resolving bit/bits values separately through resolveBitReference(), this patch adds getBit() for all Inits and resolves bit value by resolving plus getting the specified bit. This unifies the resolving of bit with other values and removes redundant logic for resolving bit only. In addition, BitsInit::resolveReferences() is optimized to take advantage of this origanization by resolving VarBitInit's variable reference first and then getting bits from it. - The type interference in '!if' operator is revised to support possible combinations of int and bits/bit in MHS and RHS. - As there may be illegal assignments from integer value to bit, says assign 2 to a bit, but we only check this during instantiation in some cases, e.g. bit V = !if(!eq(x, 17), 0, 2); Verbose diagnostic message is generated when invalid value is resolveed to help locating the error. - PR8330 is fixed as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163360 91177308-0d34-0410-b5e6-96231b3b80d8
* Write llvm-tblgen backends as functions instead of sub-classes.Jakob Stoklund Olesen2012-06-11
| | | | | | | | | The TableGenBackend base class doesn't do much, and will be removed completely soon. Patch by Sean Silva! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158311 91177308-0d34-0410-b5e6-96231b3b80d8
* TableGen/CodeEmitterGen.cpp: Fix an expression of generating bitmask.NAKAMURA Takumi2012-03-09
| | | | | | ~0U might be i32 on 32-bit hosts, then (uint64_t)~0U might not be expected as (i64)0xFFFFFFFF_FFFFFFFF, but as (i64)0x00000000_FFFFFFFF. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152407 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix support for encodings up to 64-bits in length. TableGen was silently ↵Owen Anderson2012-03-06
| | | | | | truncating them to 32-bits prior to this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152148 91177308-0d34-0410-b5e6-96231b3b80d8
* Widen the instruction encoder that TblGen emits to a 64 bits, which should ↵Owen Anderson2012-01-24
| | | | | | accomodate every target I can think of offhand. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148833 91177308-0d34-0410-b5e6-96231b3b80d8
* Move TableGen's parser and entry point into a libraryPeter Collingbourne2011-10-01
| | | | | | This is the first step towards splitting LLVM and Clang's tblgen executables. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140951 91177308-0d34-0410-b5e6-96231b3b80d8
* Unconstify InitsDavid Greene2011-07-29
| | | | | | | | Remove const qualifiers from Init references, per Chris' request. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136531 91177308-0d34-0410-b5e6-96231b3b80d8
* [AVX] Create Inits Via Factory MethodDavid Greene2011-07-29
| | | | | | | Replace uses of new *Init with *Init::get. This hides the allocation implementation so that we can unique Inits in various ways. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136486 91177308-0d34-0410-b5e6-96231b3b80d8
* [AVX] Constify InitsDavid Greene2011-07-29
| | | | | | | Make references to Inits const everywhere. This is the final step before making them unique. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136485 91177308-0d34-0410-b5e6-96231b3b80d8
* [AVX] Remove Mutating Members from InitsDavid Greene2011-07-29
| | | | | | | Get rid of all Init members that modify internal state. This is in preparation for making references to Inits const. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136483 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r134921, 134917, 134908 and 134907. They're causing failuresEric Christopher2011-07-11
| | | | | | | in multiple buildbots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134936 91177308-0d34-0410-b5e6-96231b3b80d8
* Use get(0 Instead of Create()David Greene2011-07-11
| | | | | | | | Respond to some feedback asking for a name change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134921 91177308-0d34-0410-b5e6-96231b3b80d8
* [AVX] Make Inits FoldableDavid Greene2011-07-11
| | | | | | | | | | | | | | | | | | Manage Inits in a FoldingSet. This provides several benefits: - Memory for Inits is properly managed - Duplicate Inits are folded into Flyweights, saving memory - It enforces const-correctness, protecting against certain classes of bugs The above benefits allow Inits to be used in more contexts, which in turn provides more dynamism to TableGen. This enhanced capability will be used by the AVX code generator to a fold common patterns together. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134907 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't require pseudo-instructions to carry encoding information.Jim Grosbach2011-07-06
| | | | | | | | | | | | For now this is distinct from isCodeGenOnly, as code-gen-only instructions can (and often do) still have encoding information associated with them. Once we've migrated all of them over to true pseudo-instructions that are lowered to real instructions prior to the printer/emitter, we can remove isCodeGenOnly and just use isPseudo. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134539 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a bug in tblgen that caused incorrect encodings on instructions that ↵Owen Anderson2011-04-28
| | | | | | | | | | specified operands with "bit" instead of "bits<1>". Unfortunately, my only testcase for this is fragile, and the ARM AsmParser can't round trip the instruction in question. <rdar://problem/9345702> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@130410 91177308-0d34-0410-b5e6-96231b3b80d8
* Tidy up a bit.Jim Grosbach2011-02-03
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124832 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix a comment typo.Bob Wilson2011-01-27
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124450 91177308-0d34-0410-b5e6-96231b3b80d8
* Change all self assignments X=X to (void)X, so that we can turn on aJeffrey Yasskin2010-12-23
| | | | | | | | | new gcc warning that complains on self-assignments and self-initializations. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122458 91177308-0d34-0410-b5e6-96231b3b80d8
* Move <map> include out of .h and into .cpp.Bill Wendling2010-12-13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121661 91177308-0d34-0410-b5e6-96231b3b80d8
* eliminate the Records global variable, patch by Garrison Venn!Chris Lattner2010-12-13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@121659 91177308-0d34-0410-b5e6-96231b3b80d8
* pull the code to get the operand value out of the loop.Chris Lattner2010-11-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119130 91177308-0d34-0410-b5e6-96231b3b80d8
* split the giant encoder loop into two new helper functions.Chris Lattner2010-11-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119129 91177308-0d34-0410-b5e6-96231b3b80d8
* reduce nesting and minor cleanups, no functionality change.Chris Lattner2010-11-15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119128 91177308-0d34-0410-b5e6-96231b3b80d8
* add fields to the .td files unconditionally, simplifying tblgen a bit.Chris Lattner2010-11-15
| | | | | | | | Switch the ARM backend to use 'let' instead of 'set' with this change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@119120 91177308-0d34-0410-b5e6-96231b3b80d8
* Add support for specifying a PostEncoderMethod, which can perform ↵Owen Anderson2010-11-11
| | | | | | | | | post-processing after the automated encoding of an instruction. Not yet used. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118759 91177308-0d34-0410-b5e6-96231b3b80d8
* Support generating an MC'ized CodeEmitter directly. Maintain a reference to theJim Grosbach2010-11-03
| | | | | | | Fixups list for the instruction so the operand encoders can add to it as needed. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118206 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r114340 (improvements in Darwin function prologue/epilogue), as it brokeJim Grosbach2010-11-02
| | | | | | assumptions about stack layout. Specifically, LR must be saved next to FP. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118026 91177308-0d34-0410-b5e6-96231b3b80d8
* Tidy up.Jim Grosbach2010-11-02
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117987 91177308-0d34-0410-b5e6-96231b3b80d8
* factor the operand list (and related fields/operations) out of Chris Lattner2010-11-01
| | | | | | | CodeGenInstruction into its own helper class. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117893 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow targets to optionally specify custom binary encoder functions forJim Grosbach2010-10-12
| | | | | | | | | | operand values. This is useful for operands which require additional trickery to encode into the instruction. For example, the ARM shifted immediate and shifted register operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116353 91177308-0d34-0410-b5e6-96231b3b80d8
* The assert() should reference to machine instr operand number, too.Jim Grosbach2010-10-11
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116243 91177308-0d34-0410-b5e6-96231b3b80d8
* Make sure to use the machine instruction operand number. It doesn't alwaysJim Grosbach2010-10-11
| | | | | | map one-to-one with the CodeGenInstruction operand number. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116238 91177308-0d34-0410-b5e6-96231b3b80d8
* When figuring out which operands match which encoding fields in an instruction,Jim Grosbach2010-10-11
| | | | | | | | | try to match them by name first. If there is no by-name match, fall back to assuming they are in order (this was the previous behavior). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116211 91177308-0d34-0410-b5e6-96231b3b80d8
* Make <target>CodeEmitter::getBinaryCodeForInstr() a const method.Jim Grosbach2010-10-08
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116018 91177308-0d34-0410-b5e6-96231b3b80d8
* trailing whitespaceJim Grosbach2010-10-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115923 91177308-0d34-0410-b5e6-96231b3b80d8
* Clean up TargetOpcodes.h a bit, and limit the number of places where the fullJakob Stoklund Olesen2010-07-02
| | | | | | | | | list of predefined instructions appear. Add some consistency checks. Ideally, TargetOpcodes.h should be produced by TableGen from Target.td, but it is hardly worth the effort. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107520 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a pseudo instruction REG_SEQUENCE that takes a list of registers andEvan Cheng2010-05-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sub-register indices and outputs a single super register which is formed from a consecutive sequence of registers. This is used as register allocation / coalescing aid and it is useful to represent instructions that output register pairs / quads. For example, v1024, v1025 = vload <address> where v1024 and v1025 forms a register pair. This really should be modelled as v1024<3>, v1025<4> = vload <address> but it would violate SSA property before register allocation is done. Currently we use insert_subreg to form the super register: v1026 = implicit_def v1027 - insert_subreg v1026, v1024, 3 v1028 = insert_subreg v1027, v1025, 4 ... = use v1024 = use v1028 But this adds pseudo live interval overlap between v1024 and v1025. We can now modeled it as v1024, v1025 = vload <address> v1026 = REG_SEQUENCE v1024, 3, v1025, 4 ... = use v1024 = use v1026 After coalescing, it will be v1026<3>, v1025<4> = vload <address> ... = use v1026<3> = use v1026 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102815 91177308-0d34-0410-b5e6-96231b3b80d8
* rename llvm::llvm_report_error -> llvm::report_fatal_errorChris Lattner2010-04-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100709 91177308-0d34-0410-b5e6-96231b3b80d8
* change Target.getInstructionsByEnumValue to return a referenceChris Lattner2010-03-19
| | | | | | | | to a vector that CGT stores instead of synthesizing it on every call. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98910 91177308-0d34-0410-b5e6-96231b3b80d8
* look up instructions by record, not by name.Chris Lattner2010-03-19
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98904 91177308-0d34-0410-b5e6-96231b3b80d8
* move target-independent opcodes out of TargetInstrInfoChris Lattner2010-02-09
| | | | | | | | | | into TargetOpcodes.h. #include the new TargetOpcodes.h into MachineInstr. Add new inline accessors (like isPHI()) to MachineInstr, and start using them throughout the codebase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95687 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove DEBUG_DECLARE, looks like we don't need it.Dale Johannesen2010-01-15
| | | | | | | | Also, DEBUG_VALUE has side effects. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93498 91177308-0d34-0410-b5e6-96231b3b80d8
* Add DEBUG_DECLARE. Not used yet.Dale Johannesen2010-01-09
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93040 91177308-0d34-0410-b5e6-96231b3b80d8
* Add DEBUG_VALUE. Not used yet.Dale Johannesen2010-01-08
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93030 91177308-0d34-0410-b5e6-96231b3b80d8
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