Commit Graph

185 Commits

Author SHA1 Message Date
Roman Divacky 9dc6df5744 Constant propagate MachineInstrClassName.
llvm-svn: 198969
2014-01-10 22:59:49 +00:00
Rafael Espindola f581314932 All backends use MC now.
llvm-svn: 198959
2014-01-10 21:49:27 +00:00
Rafael Espindola 53c2b1ea59 Remove dead code.
llvm-svn: 196066
2013-12-02 05:10:04 +00:00
Ahmed Bougacha bd2140018b TableGen: Refactor AsmWriterEmitter to keep AsmWriterInsts.
These used to be referenced by the CGI->AWI map (in AsmWriterEmitter), but
stored in a vector local to EmitPrintInstruction. Move the vector to
AsmWriterEmitter too.

llvm-svn: 193525
2013-10-28 18:07:17 +00:00
Rafael Espindola 44fee4e0eb Remove several unused variables.
Patch by Alp Toker.

llvm-svn: 191757
2013-10-01 13:32:03 +00:00
Benjamin Kramer 17c17bce2a llvm-tblgen: Mangle operand replacements into the strings in printAliasInstr.
Cuts down the bloat in the AArch64 asm writer a bit.

llvm-svn: 190527
2013-09-11 15:42:16 +00:00
Jack Carter 9c1a027fe8 This patch that sets the EmitAlias flag in td files
and enables the instruction printer to print aliased 
instructions. 

Due to usage of RegisterOperands a change in common 
code (utils/TableGen/AsmWriterEmitter.cpp) is required 
to get the correct register value if it is a RegisterOperand.

Contributer: Vladimir Medic
 
llvm-svn: 174358
2013-02-05 08:32:10 +00:00
Tim Northover ab7689ecee Check whether MCInst operand isImm before calling getImm.
When processing possible aliases, TableGen assumes that if an operand *can* be
an immediate, then it always *will* be. This is incorrect for the AArch64
backend. This patch inserts a check in the generated code to make sure isImm is
true first.

llvm-svn: 171972
2013-01-09 13:32:04 +00:00
Joerg Sonnenberger 635debe85b Remove exception handling usage from tblgen.
Most places can use PrintFatalError as the unwinding mechanism was not
used for anything other than printing the error. The single exception
was CodeGenDAGPatterns.cpp, where intermediate errors during type
resolution were ignored to simplify incremental platform development.
This use is replaced by an error flag in TreePattern and bailout earlier
in various places if it is set. 

llvm-svn: 166712
2012-10-25 20:33:17 +00:00
Sean Silva 88eb8dd4ed tblgen: Use semantically correct RTTI functions.
Also, some minor cleanup.

llvm-svn: 165647
2012-10-10 20:24:47 +00:00
Sean Silva fb509ed156 tblgen: Mechanically move dynamic_cast<> to dyn_cast<>.
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<>.

llvm-svn: 165646
2012-10-10 20:24:43 +00:00
Craig Topper f8f0a23ce7 Revert r163878 as it breaks on targets with alternate register names. Such targets do not exist in the main tree so this was not noticed.
llvm-svn: 163959
2012-09-15 01:22:42 +00:00
Craig Topper 06cec4ceac Allow the second opcode info table to be 8, 16, or 32-bits as needed to represent additional fragments. This recovers some space on ATT X86 syntax and PowerPC which only need 40-bits instead of 48-bits. This also increases ARM to 64-bits to fully encode all of its operands.
llvm-svn: 163880
2012-09-14 08:33:11 +00:00
Craig Topper 805e39beab Reduce size of register name index tables by using uint16_t for all in tree targets. If more than 16-bits are needed for any out of tree targets, code will detect and use uint32_t instead.
llvm-svn: 163878
2012-09-14 06:37:49 +00:00
Manman Ren 4d9ae56a45 AsmWriterEmitter: OpInfo2 should be unsigned 16-bit.
Fix an issue in r163814.

llvm-svn: 163837
2012-09-13 20:47:48 +00:00
Manman Ren 68cf9fc45d AsmWriterEmitter: increase the number of bits for OpcodeInfo from 32-bit to
48-bit if necessary, in order to reduce the generated code size.

We have 900 cases not covered by OpcodeInfo in ATT AsmWriter and more in Intel
AsmWriter and ARM AsmWriter.

This patch reduced the clang Release build size by 50k, running on a Mac Pro.

llvm-svn: 163814
2012-09-13 17:43:46 +00:00
Craig Topper b63501397b Clean up includes.
llvm-svn: 160852
2012-07-27 06:44:02 +00:00
Jakob Stoklund Olesen e6aed139f0 Write llvm-tblgen backends as functions instead of sub-classes.
The TableGenBackend base class doesn't do much, and will be removed
completely soon.

Patch by Sean Silva!

llvm-svn: 158311
2012-06-11 15:37:55 +00:00
Jim Grosbach efe653f973 Revert "Replace some uses of std:map<std::string,...> with StringMap."
StringMap iterators are not deterministic, and that's more important
here than speed or memory.

llvm-svn: 155039
2012-04-18 20:24:49 +00:00
Jim Grosbach 2bed0f974f Replace some uses of std:map<std::string,...> with StringMap.
llvm-svn: 155037
2012-04-18 19:13:59 +00:00
Jim Grosbach dba3f5be00 Use SmallVector for the requirements on an InstAlias.
llvm-svn: 155034
2012-04-18 19:02:43 +00:00
Jim Grosbach f4e6708c7a Tidy up. Formatting.
llvm-svn: 155032
2012-04-18 18:56:33 +00:00
Craig Topper 34487838bf Convert assert(false) followed by a return to llvm_unreachable
llvm-svn: 153997
2012-04-04 04:55:46 +00:00
Craig Topper 9c252ebe4c Tidy up spacing in some tablegen outputs.
llvm-svn: 153937
2012-04-03 06:52:47 +00:00
Benjamin Kramer 22d093e4f1 Emit the asm writer's mnemonic table with SequenceToOffsetTable.
This way we can get AVX v-prefixed instructions tail merged with the normal insns.

llvm-svn: 153869
2012-04-02 09:13:46 +00:00
Craig Topper dab9e35ad0 Remove getInstructionName from MCInstPrinter implementations in favor of using the instruction name table from MCInstrInfo. Reduces static data in the InstPrinter implementations.
llvm-svn: 153863
2012-04-02 07:01:04 +00:00
Craig Topper 7a2cea1814 Use SequenceToOffsetTable to generate instruction name table for AsmWriter.
llvm-svn: 153857
2012-04-02 00:47:39 +00:00
Benjamin Kramer 682de39f2d Rip out emission of the regIsInRegClass function for the asm printer.
It's slow, bloated and completely redundant with MCRegisterClass::contains.

llvm-svn: 153782
2012-03-30 23:13:40 +00:00
Jakob Stoklund Olesen 892f48058b Use SequenceToOffsetTable in emitRegisterNameString.
This allows suffix sharing in register names. (AX is a suffix of EAX).

llvm-svn: 153777
2012-03-30 21:12:52 +00:00
Jakob Stoklund Olesen e3084895d2 Revert r152202: "Use uint16_t to store InstrNameIndices in MCInstrInfo."
We cannot limit the concatenated instruction names to 64K.  ARM is
already at 32K, and it is easy to imagine a target with more
instructions.

llvm-svn: 152817
2012-03-15 18:05:57 +00:00
Jakob Stoklund Olesen e99d26c68b Revert r152105: "Use uint16_t to store indices into string table"
This patch limited the concatenated register names to 64K which meant
that the total number of registers was many times less than 64K.

If any compilers actually enforce the 64K limit on string literals, and
it turns out to be a problem, we should fix that problem by not using
long string literals.

llvm-svn: 152816
2012-03-15 18:05:54 +00:00
Craig Topper d31658d44c Re-commit r152202 hopefully fixing the MSVC linker error.
Original commit message:
Use uint16_t to store InstrNameIndices in MCInstrInfo. Add asserts to protect all 16-bit string table offsets. Also make sure the string to offset table string is not larger than 65536 characters since larger string literals aren't portable.

llvm-svn: 152296
2012-03-08 06:55:27 +00:00
Chad Rosier 3048107bc1 Revert r152202 as it's causing internal buildbot failures.
Original commit message:
Use uint16_t to store InstrNameIndices in MCInstrInfo. Add asserts to protect 
all 16-bit string table offsets. Also make sure the string to offset table 
string is not larger than 65536 characters since larger string literals aren't 
portable.

llvm-svn: 152233
2012-03-07 17:06:40 +00:00
Craig Topper 8d68422121 Use uint16_t to store InstrNameIndices in MCInstrInfo. Add asserts to protect all 16-bit string table offsets. Also make sure the string to offset table string is not larger than 65536 characters since larger string literals aren't portable.
llvm-svn: 152202
2012-03-07 05:17:23 +00:00
Craig Topper 93d65c785e Use uint16_t to store indices into string table since C++ only allows 64K string literals so the index into the big string can never be larger than that.
llvm-svn: 152105
2012-03-06 06:04:39 +00:00
Craig Topper c4965bce14 Convert assert(0) to llvm_unreachable
llvm-svn: 149814
2012-02-05 07:21:30 +00:00
David Blaikie edbb58c577 Remove unnecessary default cases in switches that cover all enum values.
llvm-svn: 147855
2012-01-10 16:47:17 +00:00
Jim Grosbach 29cdcda80d ARM parsing datatype suffix variants for fixed-writeback VLD1/VST1 instructions.
rdar://10435076

llvm-svn: 144606
2011-11-15 01:46:57 +00:00
Jakob Stoklund Olesen bd92dc608d TableGen: Privatize CodeGenRegisterClass::TheDef and Name.
When TableGen starts creating its own register classes, the synthesized
classes won't have a Record reference.  All register classes must have a
name, though.

llvm-svn: 141081
2011-10-04 15:28:08 +00:00
Peter Collingbourne 84c287e33c Move TableGen's parser and entry point into a library
This is the first step towards splitting LLVM and Clang's tblgen executables.

llvm-svn: 140951
2011-10-01 16:41:13 +00:00
Jakob Stoklund Olesen 19be2ab320 Switch to ArrayRef<CodeGenRegisterClass*>.
This makes it possible to allocate CodeGenRegisterClass instances
dynamically and reorder them.

llvm-svn: 140816
2011-09-29 22:28:37 +00:00
Evan Cheng 4d806e2830 Remove the AsmWriterEmitter (unused) feature that rely on TargetSubtargetInfo.
llvm-svn: 134457
2011-07-06 02:02:33 +00:00
Francois Pichet 2ac15f4a5d Change AsmName's type from StringRef to std::string. AsmName was pointing to a temporary string object that was destroyed. This is undefined behavior and MSVC didn't like it.
This fixes over 300+ failing tests on MSVC.
Credit for this fix goes to chapuni.

llvm-svn: 134064
2011-06-29 11:25:34 +00:00
Owen Anderson a84be6c96b Add support for alternative register names, useful for instructions whose operands are logically equivalent to existing registers, but happen to be printed specially. For example, an instruciton that prints d0[0] instead of s0.
Patch by Jim Grosbach.

llvm-svn: 133940
2011-06-27 21:06:21 +00:00
Jim Grosbach 797cff0504 Consolidate some TableGen diagnostic helper functions.
TableGen had diagnostic printers sprinkled about in a few places. Pull them
together into a single location in Error.cpp.

llvm-svn: 133568
2011-06-21 22:55:50 +00:00
Jakob Stoklund Olesen 8e188be035 Store CodeGenRegisters as pointers so they won't be reallocated.
Reuse the CodeGenRegBank DenseMap in a few places that would build their
own or use linear search.

llvm-svn: 133333
2011-06-18 04:26:06 +00:00
Jakob Stoklund Olesen d7bc5c26ab Give CodeGenRegisterClass a real sorted member set.
Make the Elements vector private and expose an ArrayRef through
getOrder() instead. getOrder will eventually provide multiple
user-specified allocation orders.

Use the sorted member set for member and subclass tests. Clean up a lot
of ad hoc searches.

llvm-svn: 133040
2011-06-15 04:50:36 +00:00
Bill Wendling 36c0c6db3f Improve the heuristic to emit the alias if the number of hard-coded registers
are also greater than the alias.

llvm-svn: 133038
2011-06-15 04:31:19 +00:00
Bill Wendling e712449688 Heuristic: If the number of operands in the alias are more than the number of
operands in the aliasee, don't print the alias.

llvm-svn: 132963
2011-06-14 03:17:20 +00:00
Bill Wendling f5199debc0 Use a more efficient data structure for the "operand map". The number of
operands to an instruction aren't great, so an iterative search is fairly quick
and doesn't have the overhead of std::map.

llvm-svn: 131886
2011-05-23 00:18:33 +00:00