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lastone
2012 Dec 19
0
[LLVMdev] question about printAliasInstr
...ern is not handled in MipsGenAsmWriter.inc
because the third operand of BEQ is a brtarget:
def : InstAlias<"b $offset", (BEQ ZERO, ZERO, brtarget:$offset)>;
The code which decides not to include this alias is located near line 856
in AsmWriterEmitter.cpp:
for (unsigned i = 0, e = LastOpNo; i != e; ++i) {
...
switch (RO.Kind) {
case CodeGenInstAlias::ResultOperand::K_Record: {
...
if (Rec->isSubClassOf("RegisterClass")) {
...
} else {
assert(Rec->isSubClassOf("Operand") && "Unexpected operand!"); // <-
line 856
// FIX...