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307525cd24
llvm-6502/utils/TableGen
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Michael Liao 307525cd24 Re-work bit/bits value resolving in tblgen 
- 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
2012-09-06 23:32:48 +00:00
..
AsmMatcherEmitter.cpp Fix function name per coding standard. 2012-09-05 01:15:43 +00:00
AsmWriterEmitter.cpp Clean up includes. 2012-07-27 06:44:02 +00:00
AsmWriterInst.cpp
AsmWriterInst.h
CallingConvEmitter.cpp Write llvm-tblgen backends as functions instead of sub-classes. 2012-06-11 15:37:55 +00:00
CMakeLists.txt I'm introducing a new machine model to simultaneously allow simple 2012-07-07 04:00:00 +00:00
CodeEmitterGen.cpp Re-work bit/bits value resolving in tblgen 2012-09-06 23:32:48 +00:00
CodeGenDAGPatterns.cpp Tablegen: Add OperandWithDefaultOps Operand type 2012-09-06 14:15:52 +00:00
CodeGenDAGPatterns.h Tablegen: Add OperandWithDefaultOps Operand type 2012-09-06 14:15:52 +00:00
CodeGenInstruction.cpp Heed guessInstructionProperties, and stop warning on redundant flags. 2012-08-24 00:31:16 +00:00
CodeGenInstruction.h Heed guessInstructionProperties, and stop warning on redundant flags. 2012-08-24 00:31:16 +00:00
CodeGenIntrinsics.h rdar://11542750 - llvm.trap should be marked no return. 2012-05-27 23:20:41 +00:00
CodeGenRegisters.cpp Print out the location of expanded multiclass defs in TableGen errors. 2012-08-22 23:33:58 +00:00
CodeGenRegisters.h Make synthesized sub-register indexes available in the target namespace. 2012-08-15 18:00:55 +00:00
CodeGenSchedule.cpp I'm introducing a new machine model to simultaneously allow simple 2012-07-07 04:00:00 +00:00
CodeGenSchedule.h I'm introducing a new machine model to simultaneously allow simple 2012-07-07 04:00:00 +00:00
CodeGenTarget.cpp Add a new optimization pass: Stack Coloring, that merges disjoint static allocations (allocas). Allocas are known to be 2012-09-06 09:17:37 +00:00
CodeGenTarget.h Add CodeGenTarget::guessInstructionProperties. 2012-08-23 19:34:41 +00:00
DAGISelEmitter.cpp Write llvm-tblgen backends as functions instead of sub-classes. 2012-06-11 15:37:55 +00:00
DAGISelMatcher.cpp
DAGISelMatcher.h Fix a typo (the the => the) 2012-07-23 08:51:15 +00:00
DAGISelMatcherEmitter.cpp TblGen: Tweak to pretty-print DAGISel.inc a bit better. 2012-07-18 22:41:03 +00:00
DAGISelMatcherGen.cpp Tablegen: Add OperandWithDefaultOps Operand type 2012-09-06 14:15:52 +00:00
DAGISelMatcherOpt.cpp
DFAPacketizerEmitter.cpp Fix Windows build after r159281: s/iterator/const_iterator 2012-06-28 07:47:50 +00:00
DisassemblerEmitter.cpp Write llvm-tblgen backends as functions instead of sub-classes. 2012-06-11 15:37:55 +00:00
EDEmitter.cpp Make x86 asm parser to check for xmm vs ymm for index register in gather instructions. Also fix Intel syntax for gather instructions to use 'DWORD PTR' or 'QWORD PTR' to match gas. 2012-07-18 04:11:12 +00:00
FastISelEmitter.cpp Write llvm-tblgen backends as functions instead of sub-classes. 2012-06-11 15:37:55 +00:00
FixedLenDecoderEmitter.cpp Re-work bit/bits value resolving in tblgen 2012-09-06 23:32:48 +00:00
InstrInfoEmitter.cpp Add an MCID::Select flag and TII hooks for optimizing selects. 2012-08-16 23:11:47 +00:00
IntrinsicEmitter.cpp Write llvm-tblgen backends as functions instead of sub-classes. 2012-06-11 15:37:55 +00:00
LLVMBuild.txt
Makefile
PseudoLoweringEmitter.cpp Tablegen: Add OperandWithDefaultOps Operand type 2012-09-06 14:15:52 +00:00
RegisterInfoEmitter.cpp Make synthesized sub-register indexes available in the target namespace. 2012-08-15 18:00:55 +00:00
SequenceToOffsetTable.h Fix a bunch of -Wdocumentation warnings. 2012-08-23 16:54:08 +00:00
SetTheory.cpp Teach tblgen's set theory "sequence" operator to support an optional stride operand. 2012-05-24 21:37:08 +00:00
SetTheory.h
StringToOffsetTable.h Add some missing includes for the build against stdcxx. 2012-08-10 10:53:56 +00:00
SubtargetEmitter.cpp Constify subtarget info properly so that we dont cast away the const in 2012-09-05 21:43:57 +00:00
TableGen.cpp Write llvm-tblgen backends as functions instead of sub-classes. 2012-06-11 15:37:55 +00:00
TableGenBackends.h Write llvm-tblgen backends as functions instead of sub-classes. 2012-06-11 15:37:55 +00:00
TGValueTypes.cpp
X86DisassemblerShared.h Add more indirection to the disassembler tables to reduce amount of space used to store the operand types and encodings. Store only the unique combinations in a separate table and store indices in the instruction table. Saves about 32K of static data. 2012-08-01 07:39:18 +00:00
X86DisassemblerTables.cpp Add more indirection to the disassembler tables to reduce amount of space used to store the operand types and encodings. Store only the unique combinations in a separate table and store indices in the instruction table. Saves about 32K of static data. 2012-08-01 07:39:18 +00:00
X86DisassemblerTables.h Remove trailing whitespace 2012-07-31 05:28:41 +00:00
X86ModRMFilters.cpp
X86ModRMFilters.h
X86RecognizableInstr.cpp Add support for converting llvm.fma to fma4 instructions. 2012-08-31 15:40:30 +00:00
X86RecognizableInstr.h Fix a bunch of -Wdocumentation warnings. 2012-08-23 16:54:08 +00:00