diff options
Diffstat (limited to 'include/lldb/Utility/Scalar.h')
| -rw-r--r-- | include/lldb/Utility/Scalar.h | 28 |
1 files changed, 8 insertions, 20 deletions
diff --git a/include/lldb/Utility/Scalar.h b/include/lldb/Utility/Scalar.h index 62ee9f666e894..72f153ff97cd4 100644 --- a/include/lldb/Utility/Scalar.h +++ b/include/lldb/Utility/Scalar.h @@ -38,6 +38,7 @@ namespace lldb_private { // follows the ANSI C type promotion rules. class Scalar { public: + // FIXME: These are host types which seems to be an odd choice. enum Type { e_void = 0, e_sint, @@ -98,30 +99,14 @@ public: } Scalar(llvm::APInt v) : m_type(), m_float(static_cast<float>(0)) { m_integer = llvm::APInt(v); - switch (m_integer.getBitWidth()) { - case 8: - case 16: - case 32: - m_type = e_sint; - return; - case 64: - m_type = e_slonglong; - return; - case 128: - m_type = e_sint128; - return; - case 256: - m_type = e_sint256; - return; - case 512: - m_type = e_sint512; - return; - } - lldbassert(false && "unsupported bitwidth"); + m_type = GetBestTypeForBitSize(m_integer.getBitWidth(), true); } // Scalar(const RegisterValue& reg_value); virtual ~Scalar(); + /// Return the most efficient Scalar::Type for the requested bit size. + static Type GetBestTypeForBitSize(size_t bit_size, bool sign); + bool SignExtend(uint32_t bit_pos); bool ExtractBitfield(uint32_t bit_size, uint32_t bit_offset); @@ -154,6 +139,9 @@ public: return (m_type >= e_sint) && (m_type <= e_long_double); } + /// Convert integer to \p type, limited to \p bits size. + void TruncOrExtendTo(Scalar::Type type, uint16_t bits); + bool Promote(Scalar::Type type); bool MakeSigned(); |