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[DWARF] Make dwarf::getDwarfOffsetByteSize() a free function. NFC.

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This will help simplify code in upcoming patches and make some
expressions constexpr.

Differential Revision: https://reviews.llvm.org/D73039
This commit is contained in:
Igor Kudrin 2020-01-20 11:52:07 +07:00
parent 6e98885794
commit faaa32f610
1 changed files with 12 additions and 7 deletions
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19
include/llvm/BinaryFormat/Dwarf.h
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@ -532,6 +532,17 @@ unsigned LanguageVendor(SourceLanguage L);
Optional<unsigned> LanguageLowerBound(SourceLanguage L); Optional<unsigned> LanguageLowerBound(SourceLanguage L);
/// The size of a reference determined by the DWARF 32/64-bit format.
constexpr uint8_t getDwarfOffsetByteSize(DwarfFormat Format) {
switch (Format) {
case DwarfFormat::DWARF32:
return 4;
case DwarfFormat::DWARF64:
return 8;
}
llvm_unreachable("Invalid Format value");
}
/// A helper struct providing information about the byte size of DW_FORM /// A helper struct providing information about the byte size of DW_FORM
/// values that vary in size depending on the DWARF version, address byte /// values that vary in size depending on the DWARF version, address byte
/// size, or DWARF32/DWARF64. /// size, or DWARF32/DWARF64.
@ -551,13 +562,7 @@ struct FormParams {
/// The size of a reference is determined by the DWARF 32/64-bit format. /// The size of a reference is determined by the DWARF 32/64-bit format.
uint8_t getDwarfOffsetByteSize() const { uint8_t getDwarfOffsetByteSize() const {
switch (Format) { return dwarf::getDwarfOffsetByteSize(Format);
case DwarfFormat::DWARF32:
return 4;
case DwarfFormat::DWARF64:
return 8;
}
llvm_unreachable("Invalid Format value");
} }
explicit operator bool() const { return Version && AddrSize; } explicit operator bool() const { return Version && AddrSize; }