diff options
Diffstat (limited to 'include/llvm/Target/Target.td')
| -rw-r--r-- | include/llvm/Target/Target.td | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/include/llvm/Target/Target.td b/include/llvm/Target/Target.td index d4a1850..5a8707b 100644 --- a/include/llvm/Target/Target.td +++ b/include/llvm/Target/Target.td @@ -221,6 +221,11 @@ class Instruction { bit mayHaveSideEffects = 0; bit neverHasSideEffects = 0; + // Is this instruction a "real" instruction (with a distinct machine + // encoding), or is it a pseudo instruction used for codegen modeling + // purposes. + bit isCodeGenOnly = 0; + InstrItinClass Itinerary = NoItinerary;// Execution steps used for scheduling. string Constraints = ""; // OperandConstraint, e.g. $src = $dst. @@ -386,7 +391,8 @@ class InstrInfo { bit isLittleEndianEncoding = 0; } -// Standard Instructions. +// Standard Pseudo Instructions. +let isCodeGenOnly = 1 in { def PHI : Instruction { let OutOperandList = (ops); let InOperandList = (ops variable_ops); @@ -466,6 +472,7 @@ def COPY_TO_REGCLASS : Instruction { let neverHasSideEffects = 1; let isAsCheapAsAMove = 1; } +} //===----------------------------------------------------------------------===// // AsmParser - This class can be implemented by targets that wish to implement |