diff options
Diffstat (limited to 'include/llvm/CodeGen/TargetInstrInfo.h')
| -rw-r--r-- | include/llvm/CodeGen/TargetInstrInfo.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/include/llvm/CodeGen/TargetInstrInfo.h b/include/llvm/CodeGen/TargetInstrInfo.h index 6b5404be35d..57dee3bb44b 100644 --- a/include/llvm/CodeGen/TargetInstrInfo.h +++ b/include/llvm/CodeGen/TargetInstrInfo.h @@ -421,7 +421,8 @@ public: /// Build the equivalent inputs of a REG_SEQUENCE for the given \p MI /// and \p DefIdx. /// \p [out] InputRegs of the equivalent REG_SEQUENCE. Each element of - /// the list is modeled as <Reg:SubReg, SubIdx>. + /// the list is modeled as <Reg:SubReg, SubIdx>. Operands with the undef + /// flag are not added to this list. /// E.g., REG_SEQUENCE %1:sub1, sub0, %2, sub1 would produce /// two elements: /// - %1:sub1, sub0 @@ -446,7 +447,8 @@ public: /// - %1:sub1, sub0 /// /// \returns true if it is possible to build such an input sequence - /// with the pair \p MI, \p DefIdx. False otherwise. + /// with the pair \p MI, \p DefIdx and the operand has no undef flag set. + /// False otherwise. /// /// \pre MI.isExtractSubreg() or MI.isExtractSubregLike(). /// @@ -465,7 +467,8 @@ public: /// - InsertedReg: %1:sub1, sub3 /// /// \returns true if it is possible to build such an input sequence - /// with the pair \p MI, \p DefIdx. False otherwise. + /// with the pair \p MI, \p DefIdx and the operand has no undef flag set. + /// False otherwise. /// /// \pre MI.isInsertSubreg() or MI.isInsertSubregLike(). /// |