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Make APInt a little more friendly to its users:
* Add support for + and - of a uint64_t. * Make trunc/sext/zext return *this so it can be chained with other ops * Add smin, smax, umin, umax functions for getting min/max values. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34742 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -268,10 +268,17 @@ public:
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/// Adds this APInt by the given APInt& RHS.
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/// @brief Addition operator.
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APInt operator+(const APInt& RHS) const;
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APInt operator+(uint64_t RHS) const {
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return (*this) + APInt(BitWidth, RHS);
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}
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/// Subtracts this APInt by the given APInt& RHS
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/// @brief Subtraction operator.
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APInt operator-(const APInt& RHS) const;
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APInt operator-(uint64_t RHS) const {
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return (*this) - APInt(BitWidth, RHS);
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}
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/// @brief Unary negation operator
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inline APInt operator-() const {
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@ -401,20 +408,20 @@ public:
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/// Truncate the APInt to a specified width. It is an error to specify a width
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/// that is greater than or equal to the current width.
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/// @brief Truncate to new width.
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void trunc(uint32_t width);
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APInt &trunc(uint32_t width);
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/// This operation sign extends the APInt to a new width. If the high order
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/// bit is set, the fill on the left will be done with 1 bits, otherwise zero.
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/// It is an error to specify a width that is less than or equal to the
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/// current width.
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/// @brief Sign extend to a new width.
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void sext(uint32_t width);
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APInt &sext(uint32_t width);
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/// This operation zero extends the APInt to a new width. Thie high order bits
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/// are filled with 0 bits. It is an error to specify a width that is less
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/// than or equal to the current width.
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/// @brief Zero extend to a new width.
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void zext(uint32_t width);
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APInt &zext(uint32_t width);
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/// @brief Set every bit to 1.
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APInt& set();
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@ -691,6 +698,26 @@ inline bool operator!=(uint64_t V1, const APInt& V2) {
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namespace APIntOps {
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/// @brief Determine the smaller of two APInts considered to be signed.
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inline APInt smin(const APInt &A, const APInt &B) {
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return A.slt(B) ? A : B;
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}
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/// @brief Determine the larger of two APInts considered to be signed.
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inline APInt smax(const APInt &A, const APInt &B) {
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return A.sgt(B) ? A : B;
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}
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/// @brief Determine the smaller of two APInts considered to be signed.
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inline APInt umin(const APInt &A, const APInt &B) {
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return A.ult(B) ? A : B;
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}
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/// @brief Determine the larger of two APInts considered to be unsigned.
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inline APInt umax(const APInt &A, const APInt &B) {
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return A.ugt(B) ? A : B;
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}
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/// @brief Check if the specified APInt has a N-bits integer value.
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inline bool isIntN(uint32_t N, const APInt& APIVal) {
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return APIVal.isIntN(N);
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