diff options
Diffstat (limited to 'include/llvm/Target/Target.td')
| -rw-r--r-- | include/llvm/Target/Target.td | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/include/llvm/Target/Target.td b/include/llvm/Target/Target.td index deee2eb..7de8b38 100644 --- a/include/llvm/Target/Target.td +++ b/include/llvm/Target/Target.td @@ -790,8 +790,8 @@ class AsmParser { // This can be used to perform target specific instruction post-processing. string AsmParserInstCleanup = ""; - //ShouldEmitMatchRegisterName - Set to false if the target needs a hand - //written register name matcher + // ShouldEmitMatchRegisterName - Set to false if the target needs a hand + // written register name matcher bit ShouldEmitMatchRegisterName = 1; } def DefaultAsmParser : AsmParser; @@ -807,6 +807,9 @@ class AsmParserVariant { // assembly language. int Variant = 0; + // Name - The AsmParser variant name (e.g., AT&T vs Intel). + string Name = ""; + // CommentDelimiter - If given, the delimiter string used to recognize // comments which are hard coded in the .td assembler strings for individual // instructions. @@ -860,9 +863,16 @@ class TokenAlias<string From, string To> { /// def : MnemonicAlias<"pushf", "pushfq">, Requires<[In64BitMode]>; /// def : MnemonicAlias<"pushf", "pushfl">, Requires<[In32BitMode]>; /// -class MnemonicAlias<string From, string To> { +/// Mnemonic aliases can also be constrained to specific variants, e.g.: +/// +/// def : MnemonicAlias<"pushf", "pushfq", "att">, Requires<[In64BitMode]>; +/// +/// If no variant (e.g., "att" or "intel") is specified then the alias is +/// applied unconditionally. +class MnemonicAlias<string From, string To, string VariantName = ""> { string FromMnemonic = From; string ToMnemonic = To; + string AsmVariantName = VariantName; // Predicates - Predicates that must be true for this remapping to happen. list<Predicate> Predicates = []; |
