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Add methods for bit width modification: sextOrTrunc, zextOrTrunc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34789 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -423,6 +423,16 @@ public:
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/// @brief Zero extend to a new width.
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APInt &zext(uint32_t width);
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/// Make this APInt have the bit width given by \p width. The value is sign
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/// extended, truncated, or left alone to make it that width.
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/// @brief Sign extend or truncate to width
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APInt &sextOrTrunc(uint32_t width);
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/// Make this APInt have the bit width given by \p width. The value is zero
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/// extended, truncated, or left alone to make it that width.
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/// @brief Zero extend or truncate to width
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APInt &zextOrTrunc(uint32_t width);
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/// @brief Set every bit to 1.
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APInt& set();
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@ -985,6 +985,22 @@ APInt &APInt::zext(uint32_t width) {
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return *this;
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}
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APInt &APInt::zextOrTrunc(uint32_t width) {
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if (BitWidth < width)
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return zext(width);
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if (BitWidth > width)
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return trunc(width);
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return *this;
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}
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APInt &APInt::sextOrTrunc(uint32_t width) {
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if (BitWidth < width)
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return sext(width);
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if (BitWidth > width)
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return trunc(width);
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return *this;
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}
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/// Arithmetic right-shift this APInt by shiftAmt.
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/// @brief Arithmetic right-shift function.
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APInt APInt::ashr(uint32_t shiftAmt) const {
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