X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FAttributes.h;h=1c2770995c20a0d1223e01c549ccaa547acb9695;hb=3a129c85920404e7ccdb7e655c89fa60a0309cfd;hp=86a963419e5d25049983438f99a0af5661f26bee;hpb=943c29135e03e55f9a5dab393786171a4a536482;p=oota-llvm.git diff --git a/include/llvm/Attributes.h b/include/llvm/Attributes.h index 86a963419e5..1c2770995c2 100644 --- a/include/llvm/Attributes.h +++ b/include/llvm/Attributes.h @@ -53,7 +53,6 @@ struct AttrConst { /// declarations. This is done to avoid static CTORs and at the same time to /// keep type-safety of Attributes. #define DECLARE_LLVM_ATTRIBUTE(name, value) \ - const uint64_t name##_i = value; \ const AttrConst name = {value}; DECLARE_LLVM_ATTRIBUTE(None,0) ///< No attributes have been set @@ -110,23 +109,6 @@ DECLARE_LLVM_ATTRIBUTE(AddressSafety,1ULL<<32) ///< Address safety checking is o /// an exception might pass by. /// uwtable + nounwind = Needs an entry because the ABI says so. -/// @brief Attributes that may be applied to the function itself. These cannot -/// be used on return values or function parameters. -const AttrConst FunctionOnly = {NoReturn_i | NoUnwind_i | ReadNone_i | - ReadOnly_i | NoInline_i | AlwaysInline_i | OptimizeForSize_i | - StackProtect_i | StackProtectReq_i | NoRedZone_i | NoImplicitFloat_i | - Naked_i | InlineHint_i | StackAlignment_i | - UWTable_i | NonLazyBind_i | ReturnsTwice_i | AddressSafety_i}; - -/// @brief Attributes that are mutually incompatible. -const AttrConst MutuallyIncompatible[5] = { - {ByVal_i | Nest_i | StructRet_i}, - {ByVal_i | Nest_i | InReg_i }, - {ZExt_i | SExt_i}, - {ReadNone_i | ReadOnly_i}, - {NoInline_i | AlwaysInline_i} -}; - } // namespace Attribute /// AttributeImpl - The internal representation of the Attributes class. This is @@ -138,39 +120,39 @@ class Attributes { public: enum AttrVal { None = 0, ///< No attributes have been set - ZExt = 1, ///< Zero extended before/after call - SExt = 2, ///< Sign extended before/after call - NoReturn = 3, ///< Mark the function as not returning - InReg = 4, ///< Force argument to be passed in register - StructRet = 5, ///< Hidden pointer to structure to return - NoUnwind = 6, ///< Function doesn't unwind stack - NoAlias = 7, ///< Considered to not alias after call - ByVal = 8, ///< Pass structure by value - Nest = 9, ///< Nested function static chain - ReadNone = 10, ///< Function does not access memory - ReadOnly = 11, ///< Function only reads from memory - NoInline = 12, ///< inline=never - AlwaysInline = 13, ///< inline=always - OptimizeForSize = 14, ///< opt_size - StackProtect = 15, ///< Stack protection. - StackProtectReq = 16, ///< Stack protection required. - Alignment = 17, ///< Alignment of parameter (5 bits) + AddressSafety = 1, ///< Address safety checking is on. + Alignment = 2, ///< Alignment of parameter (5 bits) ///< stored as log2 of alignment with +1 bias ///< 0 means unaligned different from align 1 - NoCapture = 18, ///< Function creates no aliases of pointer - NoRedZone = 19, ///< Disable redzone - NoImplicitFloat = 20, ///< Disable implicit floating point insts - Naked = 21, ///< Naked function - InlineHint = 22, ///< Source said inlining was desirable - StackAlignment = 23, ///< Alignment of stack for function (3 bits) + AlwaysInline = 3, ///< inline=always + ByVal = 4, ///< Pass structure by value + InlineHint = 5, ///< Source said inlining was desirable + InReg = 6, ///< Force argument to be passed in register + Naked = 7, ///< Naked function + Nest = 8, ///< Nested function static chain + NoAlias = 9, ///< Considered to not alias after call + NoCapture = 10, ///< Function creates no aliases of pointer + NoImplicitFloat = 11, ///< Disable implicit floating point insts + NoInline = 12, ///< inline=never + NonLazyBind = 13, ///< Function is called early and/or + ///< often, so lazy binding isn't worthwhile + NoRedZone = 14, ///< Disable redzone + NoReturn = 15, ///< Mark the function as not returning + NoUnwind = 16, ///< Function doesn't unwind stack + OptimizeForSize = 17, ///< opt_size + ReadNone = 18, ///< Function does not access memory + ReadOnly = 19, ///< Function only reads from memory + ReturnsTwice = 20, ///< Function can return twice + SExt = 21, ///< Sign extended before/after call + StackAlignment = 22, ///< Alignment of stack for function (3 bits) ///< stored as log2 of alignment with +1 bias 0 ///< means unaligned (different from ///< alignstack={1)) - ReturnsTwice = 24, ///< Function can return twice - UWTable = 25, ///< Function must be in a unwind table - NonLazyBind = 26, ///< Function is called early and/or - ///< often, so lazy binding isn't worthwhile - AddressSafety = 27 ///< Address safety checking is on. + StackProtect = 23, ///< Stack protection. + StackProtectReq = 24, ///< Stack protection required. + StructRet = 25, ///< Hidden pointer to structure to return + UWTable = 26, ///< Function must be in a unwind table + ZExt = 27 ///< Zero extended before/after call }; private: AttributesImpl Attrs; @@ -197,13 +179,35 @@ public: uint64_t getAlignment() const; - void addAttribute(Attributes::AttrVal Val); - void removeAttribute(Attributes::AttrVal Val); + Builder &addAttribute(Attributes::AttrVal Val); + Builder &removeAttribute(Attributes::AttrVal Val); void addAlignmentAttr(unsigned Align); void addStackAlignmentAttr(unsigned Align); void removeAttributes(const Attributes &A); + + /// @brief Remove attributes that are used on functions only. + void removeFunctionOnlyAttrs() { + removeAttribute(Attributes::NoReturn) + .removeAttribute(Attributes::NoUnwind) + .removeAttribute(Attributes::ReadNone) + .removeAttribute(Attributes::ReadOnly) + .removeAttribute(Attributes::NoInline) + .removeAttribute(Attributes::AlwaysInline) + .removeAttribute(Attributes::OptimizeForSize) + .removeAttribute(Attributes::StackProtect) + .removeAttribute(Attributes::StackProtectReq) + .removeAttribute(Attributes::NoRedZone) + .removeAttribute(Attributes::NoImplicitFloat) + .removeAttribute(Attributes::Naked) + .removeAttribute(Attributes::InlineHint) + .removeAttribute(Attributes::StackAlignment) + .removeAttribute(Attributes::UWTable) + .removeAttribute(Attributes::NonLazyBind) + .removeAttribute(Attributes::ReturnsTwice) + .removeAttribute(Attributes::AddressSafety); + } }; /// get - Return a uniquified Attributes object. This takes the uniquified @@ -243,6 +247,29 @@ public: hasAttribute(Attributes::NoCapture); } + /// @brief Attributes that may be applied to the function itself. These cannot + /// be used on return values or function parameters. + bool hasFunctionOnlyAttrs() const { + return hasAttribute(Attributes::NoReturn) || + hasAttribute(Attributes::NoUnwind) || + hasAttribute(Attributes::ReadNone) || + hasAttribute(Attributes::ReadOnly) || + hasAttribute(Attributes::NoInline) || + hasAttribute(Attributes::AlwaysInline) || + hasAttribute(Attributes::OptimizeForSize) || + hasAttribute(Attributes::StackProtect) || + hasAttribute(Attributes::StackProtectReq) || + hasAttribute(Attributes::NoRedZone) || + hasAttribute(Attributes::NoImplicitFloat) || + hasAttribute(Attributes::Naked) || + hasAttribute(Attributes::InlineHint) || + hasAttribute(Attributes::StackAlignment) || + hasAttribute(Attributes::UWTable) || + hasAttribute(Attributes::NonLazyBind) || + hasAttribute(Attributes::ReturnsTwice) || + hasAttribute(Attributes::AddressSafety); + } + bool isEmptyOrSingleton() const; // This is a "safe bool() operator". @@ -268,7 +295,7 @@ public: static Attributes constructAlignmentFromInt(unsigned i) { // Default alignment, allow the target to define how to align it. if (i == 0) - return Attribute::None; + return Attributes(); assert(isPowerOf2_32(i) && "Alignment must be a power of two."); assert(i <= 0x40000000 && "Alignment too large."); @@ -280,7 +307,7 @@ public: static Attributes constructStackAlignmentFromInt(unsigned i) { // Default alignment, allow the target to define how to align it. if (i == 0) - return Attribute::None; + return Attributes(); assert(isPowerOf2_32(i) && "Alignment must be a power of two."); assert(i <= 0x100 && "Alignment too large."); @@ -306,8 +333,7 @@ public: // bits. uint64_t EncodedAttrs = Attrs.Raw() & 0xffff; if (Attrs.hasAttribute(Attributes::Alignment)) - EncodedAttrs |= (1ULL << 16) << - (((Attrs.Raw() & Attribute::Alignment_i) - 1) >> 16); + EncodedAttrs |= Attrs.getAlignment() << 16; EncodedAttrs |= (Attrs.Raw() & (0xfffULL << 21)) << 11; return EncodedAttrs; }