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[PM] Clean up the TLI doxygen comments prior to refactoring this code
for the new pass manager. llvm-svn: 226089
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@ -692,9 +692,11 @@ namespace llvm {
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};
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}
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/// TargetLibraryInfo - This immutable pass captures information about what
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/// library functions are available for the current target, and allows a
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/// frontend to disable optimizations through -fno-builtin etc.
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/// \brief Provides information about what library functions are available for
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/// the current target.
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///
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/// This both allows optimizations to handle them specially and frontends to
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/// disable such optimizations through -fno-builtin etc.
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class TargetLibraryInfo : public ImmutablePass {
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virtual void anchor();
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unsigned char AvailableArray[(LibFunc::NumLibFuncs+3)/4];
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@ -720,18 +722,19 @@ public:
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TargetLibraryInfo(const Triple &T);
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explicit TargetLibraryInfo(const TargetLibraryInfo &TLI);
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/// getLibFunc - Search for a particular function name. If it is one of the
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/// known library functions, return true and set F to the corresponding value.
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/// \brief Searches for a particular function name.
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///
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/// If it is one of the known library functions, return true and set F to the
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/// corresponding value.
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bool getLibFunc(StringRef funcName, LibFunc::Func &F) const;
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/// has - This function is used by optimizations that want to match on or form
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/// a given library function.
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/// \brief Tests wether a library function is available.
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bool has(LibFunc::Func F) const {
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return getState(F) != Unavailable;
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}
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/// hasOptimizedCodeGen - Return true if the function is both available as
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/// a builtin and a candidate for optimized code generation.
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/// \brief Tests if the function is both available and a candidate for
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/// optimized code generation.
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bool hasOptimizedCodeGen(LibFunc::Func F) const {
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if (getState(F) == Unavailable)
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return false;
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@ -772,16 +775,18 @@ public:
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return CustomNames.find(F)->second;
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}
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/// setUnavailable - this can be used by whatever sets up TargetLibraryInfo to
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/// ban use of specific library functions.
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/// \brief Forces a function to be marked as unavailable.
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void setUnavailable(LibFunc::Func F) {
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setState(F, Unavailable);
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}
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/// \brief Forces a function to be marked as available.
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void setAvailable(LibFunc::Func F) {
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setState(F, StandardName);
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}
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/// \brief Forces a function to be marked as available and provide an
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/// alternate name that must be used.
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void setAvailableWithName(LibFunc::Func F, StringRef Name) {
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if (StandardNames[F] != Name) {
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setState(F, CustomName);
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@ -792,8 +797,9 @@ public:
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}
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}
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/// disableAllFunctions - This disables all builtins, which is used for
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/// options like -fno-builtin.
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/// \brief Disables all builtins.
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///
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/// This can be used for options like -fno-builtin.
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void disableAllFunctions();
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};
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