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Add support for "_lane" variants of VMUL, VMLA, and VMLS Neon intrinsics. 

llvm-svn: 120764
This commit is contained in:
Bob Wilson 2010-12-03 00:34:12 +00:00
parent 791934e122
commit e6b421ccb5
2 changed files with 24 additions and 0 deletions
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18
llvm/utils/TableGen/NeonEmitter.cpp
View File

@ -523,6 +523,15 @@ static std::string Duplicate(unsigned nElts, StringRef typestr,
return s;
}
static std::string SplatLane(unsigned nElts, const std::string &vec,
const std::string &lane) {
std::string s = "__builtin_shufflevector(" + vec + ", " + vec;
for (unsigned i = 0; i < nElts; ++i)
s += ", " + lane;
s += ")";
return s;
}
static unsigned GetNumElements(StringRef typestr, bool &quad) {
quad = false;
bool dummy = false;
@ -572,18 +581,27 @@ static std::string GenOpString(OpKind op, const std::string &proto,
case OpMulN:
s += "__a * " + Duplicate(nElts, typestr, "__b") + ";";
break;
case OpMulLane:
s += "__a * " + SplatLane(nElts, "__b", "__c") + ";";
break;
case OpMul:
s += "__a * __b;";
break;
case OpMlaN:
s += "__a + (__b * " + Duplicate(nElts, typestr, "__c") + ");";
break;
case OpMlaLane:
s += "__a + (__b * " + SplatLane(nElts, "__c", "__d") + ");";
break;
case OpMla:
s += "__a + (__b * __c);";
break;
case OpMlsN:
s += "__a - (__b * " + Duplicate(nElts, typestr, "__c") + ");";
break;
case OpMlsLane:
s += "__a - (__b * " + SplatLane(nElts, "__c", "__d") + ");";
break;
case OpMls:
s += "__a - (__b * __c);";
break;

6
llvm/utils/TableGen/NeonEmitter.h
View File

@ -31,6 +31,9 @@ enum OpKind {
OpMulN,
OpMlaN,
OpMlsN,
OpMulLane,
OpMlaLane,
OpMlsLane,
OpEq,
OpGe,
OpLe,
@ -80,6 +83,9 @@ namespace llvm {
OpMap["OP_MUL_N"] = OpMulN;
OpMap["OP_MLA_N"] = OpMlaN;
OpMap["OP_MLS_N"] = OpMlsN;
OpMap["OP_MUL_LN"]= OpMulLane;
OpMap["OP_MLA_LN"]= OpMlaLane;
OpMap["OP_MLS_LN"]= OpMlsLane;
OpMap["OP_EQ"] = OpEq;
OpMap["OP_GE"] = OpGe;
OpMap["OP_LE"] = OpLe;