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author | Nate Begeman <natebegeman@mac.com> | 2010-06-04 22:53:30 +0000 |
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committer | Nate Begeman <natebegeman@mac.com> | 2010-06-04 22:53:30 +0000 |
commit | 9e584b37b0ab90f817df476b803e96907bd504ae (patch) | |
tree | cfe8f41309dd72d489e37ff27a3cd4836d56e6d0 /utils | |
parent | 80ecc153ea3d9a36bcaf1246125a458532901b6a (diff) | |
download | llvm-9e584b37b0ab90f817df476b803e96907bd504ae.tar.gz llvm-9e584b37b0ab90f817df476b803e96907bd504ae.tar.bz2 llvm-9e584b37b0ab90f817df476b803e96907bd504ae.tar.xz |
Handle multi-vector returns and args.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105496 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'utils')
-rw-r--r-- | utils/TableGen/NeonEmitter.cpp | 95 |
1 files changed, 71 insertions, 24 deletions
diff --git a/utils/TableGen/NeonEmitter.cpp b/utils/TableGen/NeonEmitter.cpp index 34a5021196..9647666935 100644 --- a/utils/TableGen/NeonEmitter.cpp +++ b/utils/TableGen/NeonEmitter.cpp @@ -171,6 +171,9 @@ static std::string TypeString(const char mod, StringRef typestr, SmallString<128> s; + if (ret) + s += "__neon_"; + if (usgn) s.push_back('u'); @@ -455,7 +458,7 @@ static std::string GenArgs(const std::string &proto, StringRef typestr) { static std::string GenOpString(OpKind op, const std::string &proto, StringRef typestr, bool structTypes = true) { std::string s("return "); - std::string ts = TypeString(proto[0], typestr, true); + std::string ts = TypeString(proto[0], typestr); if (structTypes) s += "(" + ts + "){"; @@ -539,19 +542,30 @@ static std::string GenBuiltin(const std::string &name, const std::string &proto, bool structTypes = true) { char arg = 'a'; std::string s; - //bool unioning = (proto[0] == '2' || proto[0] == '3' || proto[0] == '4'); + + bool unioning = (proto[0] == '2' || proto[0] == '3' || proto[0] == '4'); + + // If all types are the same size, bitcasting the args will take care + // of arg checking. The actual signedness etc. will be taken care of with + // special enums. + if (proto.find('s') == std::string::npos) + ck = ClassB; if (proto[0] != 'v') { - // FIXME: if return type is 2/3/4, emit unioning code. - //if (unioning) - // ; - - s += "return "; - if (structTypes) { - s += "("; - s += TypeString(proto[0], typestr, true); - s += "){"; + if (unioning) { + s += "union { "; + s += TypeString(proto[0], typestr, true) + " val; "; + s += TypeString(proto[0], typestr, false) + " s; "; + s += "} r;"; + } else { + s += TypeString(proto[0], typestr); } + + s += " r; r"; + if (structTypes && proto[0] != 's' && proto[0] != 'i' && proto[0] != 'l') + s += ".val"; + + s += " = "; } s += "__builtin_neon_"; @@ -559,7 +573,23 @@ static std::string GenBuiltin(const std::string &name, const std::string &proto, s += "("; for (unsigned i = 1, e = proto.size(); i != e; ++i, ++arg) { + // Handle multiple-vector values specially, emitting each subvector as an + // argument to the __builtin. + if (structTypes && (proto[i] == '2' || proto[i] == '3' || proto[i] == '4')){ + for (unsigned vi = 0, ve = proto[i] - '0'; vi != ve; ++vi) { + s.push_back(arg); + s += ".val[" + utostr(vi) + "]"; + if ((vi + 1) < ve) + s += ", "; + } + if ((i + 1) < e) + s += ", "; + + continue; + } + s.push_back(arg); + if (structTypes && proto[i] != 's' && proto[i] != 'i' && proto[i] != 'l' && proto[i] != 'p' && proto[i] != 'c') { s += ".val"; @@ -568,10 +598,19 @@ static std::string GenBuiltin(const std::string &name, const std::string &proto, s += ", "; } - s += ")"; - if (proto[0] != 'v' && structTypes) - s += "}"; - s += ";"; + // Extra constant integer to hold type class enum for this function, e.g. s8 + // FIXME: emit actual type num. + if (ck == ClassB) + s += ", 0"; + + s += ");"; + + if (proto[0] != 'v') { + if (unioning) + s += " return r.s;"; + else + s += " return r;"; + } return s; } @@ -621,21 +660,29 @@ void NeonEmitter::run(raw_ostream &OS) { OS << "typedef uint8_t poly8_t;\n"; OS << "typedef uint16_t poly16_t;\n"; OS << "typedef uint16_t float16_t;\n"; - + // Emit Neon vector typedefs. std::string TypedefTypes("cQcsQsiQilQlUcQUcUsQUsUiQUiUlQUlhQhfQfPcQPcPsQPs"); SmallVector<StringRef, 24> TDTypeVec; ParseTypes(0, TypedefTypes, TDTypeVec); // Emit vector typedefs. - for (unsigned i = 0, e = TDTypeVec.size(); i != e; ++i) { - bool dummy, quad = false; - (void) ClassifyType(TDTypeVec[i], quad, dummy, dummy); - OS << "typedef __attribute__(( __vector_size__("; - OS << (quad ? "16) )) " : "8) )) "); - OS << TypeString('s', TDTypeVec[i]); - OS << " __neon_"; - OS << TypeString('d', TDTypeVec[i]) << ";\n"; + for (unsigned v = 1; v != 5; ++v) { + for (unsigned i = 0, e = TDTypeVec.size(); i != e; ++i) { + bool dummy, quad = false; + (void) ClassifyType(TDTypeVec[i], quad, dummy, dummy); + OS << "typedef __attribute__(( __vector_size__("; + + OS << utostr(8*v*(quad ? 2 : 1)) << ") )) "; + if (!quad) + OS << " "; + + OS << TypeString('s', TDTypeVec[i]); + OS << " __neon_"; + + char t = (v == 1) ? 'd' : '0' + v; + OS << TypeString(t, TDTypeVec[i]) << ";\n"; + } } OS << "\n"; |