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Use float64 instead of int64 vector elements for NEON vget_low and vget_high
functions, since int64 is not a legal type and using it leads to inefficient code. PR8036. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113919 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -552,10 +552,14 @@ static std::string GenOpString(OpKind op, const std::string &proto,
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}
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std::string ts = TypeString(proto[0], typestr);
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std::string s = ts + " r; r";
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if (structTypes)
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s += ".val";
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std::string s;
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if (op == OpHi || op == OpLo) {
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s = "union { " + ts + " r; double d; } u; u.d";
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} else {
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s = ts + " r; r";
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if (structTypes)
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s += ".val";
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}
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s += " = ";
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@ -631,10 +635,10 @@ static std::string GenOpString(OpKind op, const std::string &proto,
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s += ", (__neon_int64x1_t)" + b + ", 0, 1)";
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break;
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case OpHi:
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s += "(__neon_int64x1_t)(((__neon_int64x2_t)" + a + ")[1])";
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s += "(((__neon_float64x2_t)" + a + ")[1])";
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break;
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case OpLo:
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s += "(__neon_int64x1_t)(((__neon_int64x2_t)" + a + ")[0])";
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s += "(((__neon_float64x2_t)" + a + ")[0])";
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break;
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case OpDup:
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s += Duplicate(nElts << (int)quad, typestr, a);
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@ -671,7 +675,10 @@ static std::string GenOpString(OpKind op, const std::string &proto,
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throw "unknown OpKind!";
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break;
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}
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s += "; return r;";
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if (op == OpHi || op == OpLo)
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s += "; return u.r;";
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else
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s += "; return r;";
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return s;
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}
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@ -923,6 +930,11 @@ void NeonEmitter::run(raw_ostream &OS) {
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}
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}
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OS << "\n";
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OS << "typedef __attribute__(( __vector_size__(8) )) "
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"double __neon_float64x1_t;\n";
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OS << "typedef __attribute__(( __vector_size__(16) )) "
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"double __neon_float64x2_t;\n";
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OS << "\n";
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// Emit struct typedefs.
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for (unsigned vi = 1; vi != 5; ++vi) {
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