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Add some additional capabilities to the neon emitter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105416 91177308-0d34-0410-b5e6-96231b3b80d8
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c4b55610d8
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@ -41,7 +41,8 @@ enum OpKind {
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OpOr,
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OpXor,
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OpAndNot,
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OpOrNot
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OpOrNot,
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OpCast
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};
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static void ParseTypes(Record *r, std::string &s,
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@ -85,6 +86,19 @@ static char Widen(const char t) {
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return '\0';
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}
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static char Narrow(const char t) {
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switch (t) {
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case 's':
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return 'c';
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case 'i':
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return 's';
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case 'l':
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return 'i';
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default: throw "unhandled type in widen!";
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}
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return '\0';
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}
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static char ClassifyType(StringRef ty, bool &quad, bool &poly, bool &usgn) {
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unsigned off = 0;
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@ -167,6 +181,13 @@ static std::string TypeString(const char mod, StringRef typestr) {
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pntr = true;
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scal = true;
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break;
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case 'h':
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type = Narrow(type);
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break;
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case 'e':
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type = Narrow(type);
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usgn = true;
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break;
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default:
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break;
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}
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@ -308,9 +329,11 @@ static std::string GenOpString(OpKind op, const std::string &proto,
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if (structTypes)
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s += "(" + ts + "){";
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std::string a = structTypes ? "a.val" : "a";
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std::string b = structTypes ? "b.val" : "b";
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std::string c = structTypes ? "c.val" : "c";
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std::string a, b, c;
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if (proto.size() > 1)
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a = (structTypes && proto[1] != 'l') ? "a.val" : "a";
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b = structTypes ? "b.val" : "b";
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c = structTypes ? "c.val" : "c";
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switch(op) {
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case OpAdd:
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@ -364,6 +387,9 @@ static std::string GenOpString(OpKind op, const std::string &proto,
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case OpOrNot:
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s += a + " | ~" + b;
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break;
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case OpCast:
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s += "(__neon_" + ts + ")" + a;
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break;
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default:
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throw "unknown OpKind!";
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break;
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@ -489,6 +515,7 @@ void NeonEmitter::run(raw_ostream &OS) {
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OpMap["OP_XOR"] = OpXor;
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OpMap["OP_ANDN"] = OpAndNot;
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OpMap["OP_ORN"] = OpOrNot;
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OpMap["OP_CAST"] = OpCast;
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// Unique the return+pattern types, and assign them.
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for (unsigned i = 0, e = RV.size(); i != e; ++i) {
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