diff options
| -rw-r--r-- | llvm/include/llvm/ADT/APInt.h | 12 | ||||
| -rw-r--r-- | llvm/lib/Support/APInt.cpp | 5 |
2 files changed, 12 insertions, 5 deletions
diff --git a/llvm/include/llvm/ADT/APInt.h b/llvm/include/llvm/ADT/APInt.h index 27e164c6641..c407d9c55a2 100644 --- a/llvm/include/llvm/ADT/APInt.h +++ b/llvm/include/llvm/ADT/APInt.h @@ -217,6 +217,9 @@ class LLVM_NODISCARD APInt { /// out-of-line slow case for setBits. void setBitsSlowCase(unsigned loBit, unsigned hiBit); + /// out-of-line slow case for flipAllBits. + void flipAllBitsSlowCase(); + public: /// \name Constructors /// @{ @@ -1233,13 +1236,12 @@ public: /// \brief Toggle every bit to its opposite value. void flipAllBits() { - if (isSingleWord()) + if (isSingleWord()) { VAL ^= UINT64_MAX; - else { - for (unsigned i = 0; i < getNumWords(); ++i) - pVal[i] ^= UINT64_MAX; + clearUnusedBits(); + } else { + flipAllBitsSlowCase(); } - clearUnusedBits(); } /// \brief Toggles a given bit to its opposite value. diff --git a/llvm/lib/Support/APInt.cpp b/llvm/lib/Support/APInt.cpp index 58fa2f53690..aacb7440313 100644 --- a/llvm/lib/Support/APInt.cpp +++ b/llvm/lib/Support/APInt.cpp @@ -581,6 +581,11 @@ void APInt::clearBit(unsigned bitPosition) { } /// @brief Toggle every bit to its opposite value. +void APInt::flipAllBitsSlowCase() { + for (unsigned i = 0; i < getNumWords(); ++i) + pVal[i] ^= UINT64_MAX; + clearUnusedBits(); +} /// Toggle a given bit to its opposite value whose position is given /// as "bitPosition". |
