diff options
Diffstat (limited to 'contrib/llvm/include/llvm/MC/MCTargetAsmParser.h')
| -rw-r--r-- | contrib/llvm/include/llvm/MC/MCTargetAsmParser.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/contrib/llvm/include/llvm/MC/MCTargetAsmParser.h b/contrib/llvm/include/llvm/MC/MCTargetAsmParser.h index 483a80b3b595..6e878df3cb1e 100644 --- a/contrib/llvm/include/llvm/MC/MCTargetAsmParser.h +++ b/contrib/llvm/include/llvm/MC/MCTargetAsmParser.h @@ -22,6 +22,8 @@ class MCInst; template <typename T> class SmallVectorImpl; enum AsmRewriteKind { + AOK_Delete = 0, // Rewrite should be ignored. + AOK_Align, // Rewrite align as .align. AOK_DotOperator, // Rewrite a dot operator expression as an immediate. // E.g., [eax].foo.bar -> [eax].8 AOK_Emit, // Rewrite _emit as .byte. @@ -33,6 +35,19 @@ enum AsmRewriteKind { AOK_Skip // Skip emission (e.g., offset/type operators). }; +const char AsmRewritePrecedence [] = { + 0, // AOK_Delete + 1, // AOK_Align + 1, // AOK_DotOperator + 1, // AOK_Emit + 3, // AOK_Imm + 3, // AOK_ImmPrefix + 2, // AOK_Input + 2, // AOK_Output + 4, // AOK_SizeDirective + 1 // AOK_Skip +}; + struct AsmRewrite { AsmRewriteKind Kind; SMLoc Loc; @@ -142,6 +157,15 @@ public: MCStreamer &Out, unsigned &ErrorInfo, bool MatchingInlineAsm) = 0; + /// Allow a target to add special case operand matching for things that + /// tblgen doesn't/can't handle effectively. For example, literal + /// immediates on ARM. TableGen expects a token operand, but the parser + /// will recognize them as immediates. + virtual unsigned validateTargetOperandClass(MCParsedAsmOperand *Op, + unsigned Kind) { + return Match_InvalidOperand; + } + /// checkTargetMatchPredicate - Validate the instruction match against /// any complex target predicates not expressible via match classes. virtual unsigned checkTargetMatchPredicate(MCInst &Inst) { |