diff options
Diffstat (limited to 'include/llvm/ADT/Triple.h')
| -rw-r--r-- | include/llvm/ADT/Triple.h | 32 |
1 files changed, 18 insertions, 14 deletions
diff --git a/include/llvm/ADT/Triple.h b/include/llvm/ADT/Triple.h index feade6a56f..8dca3c1cfb 100644 --- a/include/llvm/ADT/Triple.h +++ b/include/llvm/ADT/Triple.h @@ -24,7 +24,7 @@ class Twine; /// Triple - Helper class for working with target triples. /// -/// Target triples are strings in the format of: +/// Target triples are strings in the canonical form: /// ARCHITECTURE-VENDOR-OPERATING_SYSTEM /// or /// ARCHITECTURE-VENDOR-OPERATING_SYSTEM-ENVIRONMENT @@ -35,20 +35,11 @@ class Twine; /// from the components of the target triple to well known IDs. /// /// At its core the Triple class is designed to be a wrapper for a triple -/// string; it does not normally change or normalize the triple string, instead -/// it provides additional APIs to parse normalized parts out of the triple. +/// string; the constructor does not change or normalize the triple string. +/// Clients that need to handle the non-canonical triples that users often +/// specify should use the normalize method. /// -/// One curiosity this implies is that for some odd triples the results of, -/// e.g., getOSName() can be very different from the result of getOS(). For -/// example, for 'i386-mingw32', getOS() will return MinGW32, but since -/// getOSName() is purely based on the string structure that will return the -/// empty string. -/// -/// Clients should generally avoid using getOSName() and related APIs unless -/// they are familiar with the triple format (this is particularly true when -/// rewriting a triple). -/// -/// See autoconf/config.guess for a glimpse into what they look like in +/// See autoconf/config.guess for a glimpse into what triples look like in /// practice. class Triple { public: @@ -117,6 +108,9 @@ private: mutable OSType OS; bool isInitialized() const { return Arch != InvalidArch; } + static ArchType ParseArch(StringRef ArchName); + static VendorType ParseVendor(StringRef VendorName); + static OSType ParseOS(StringRef OSName); void Parse() const; public: @@ -134,6 +128,16 @@ public: } /// @} + /// @name Normalization + /// @{ + + /// normalize - Turn an arbitrary machine specification into the canonical + /// triple form (or something sensible that the Triple class understands if + /// nothing better can reasonably be done). In particular, it handles the + /// common case in which otherwise valid components are in the wrong order. + static std::string normalize(StringRef Str); + + /// @} /// @name Typed Component Access /// @{ |