#NAME# with the name of the defm instantiating the multiclass. This is
useful for AVX instruction naming where a "V" prefix is standard
throughout the ISA. For example:
multiclass SSE_AVX_Inst<...> {
def SS : Instr<...>;
def SD : Instr<...>;
def PS : Instr<...>;
def PD : Instr<...>;
def V#NAME#SS : Instr<...>;
def V#NAME#SD : Instr<...>;
def V#NAME#PS : Instr<...>;
def V#NAME#PD : Instr<...>;
}
defm ADD : SSE_AVX_Inst<...>;
Results in
ADDSS
ADDSD
ADDPS
ADDPD
VADDSS
VADDSD
VADDPS
VADDPD
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70979
91177308-0d34-0410-b5e6-
96231b3b80d8
--- /dev/null
+// RUN: tblgen %s | grep WorldHelloCC | count 1
+
+class C<string n> {
+ string name = n;
+}
+
+multiclass Names<string n, string m> {
+ def CC : C<n>;
+ def World#NAME#CC : C<m>;
+}
+
+defm Hello : Names<"hello", "world">;
switch (CurChar) {
default:
// Handle letters: [a-zA-Z_]
- if (isalpha(CurChar) || CurChar == '_')
+ if (isalpha(CurChar) || CurChar == '_' || CurChar == '#')
return LexIdentifier();
// Unknown character, emit an error.
const char *IdentStart = TokStart;
// Match the rest of the identifier regex: [0-9a-zA-Z_]*
- while (isalpha(*CurPtr) || isdigit(*CurPtr) || *CurPtr == '_')
- ++CurPtr;
+ while (isalpha(*CurPtr) || isdigit(*CurPtr) || *CurPtr == '_'
+ || *CurPtr == '#') {
+ // If this contains a '#', make sure it's value
+ if (*CurPtr == '#') {
+ if (strncmp(CurPtr, "#NAME#", 6) != 0) {
+ return tgtok::Error;
+ }
+ CurPtr += 6;
+ }
+ else {
+ ++CurPtr;
+ }
+ }
+
// Check to see if this identifier is a keyword.
unsigned Len = CurPtr-IdentStart;
for (unsigned i = 0, e = MC->DefPrototypes.size(); i != e; ++i) {
Record *DefProto = MC->DefPrototypes[i];
- // Add the suffix to the defm name to get the new name.
- Record *CurRec = new Record(DefmPrefix + DefProto->getName(),
- DefmPrefixLoc);
+ // Add in the defm name
+ std::string DefName = DefProto->getName();
+ std::string::size_type idx = DefName.find("#NAME#");
+ if (idx != std::string::npos) {
+ DefName.replace(idx, 6, DefmPrefix);
+ }
+ else {
+ // Add the suffix to the defm name to get the new name.
+ DefName = DefmPrefix + DefName;
+ }
+
+ Record *CurRec = new Record(DefName, DefmPrefixLoc);
SubClassReference Ref;
Ref.RefLoc = DefmPrefixLoc;