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Use the struct tags mandated by ARM's ABI. Also use the public type names for

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the array fields in these structs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106794 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bob Wilson 2010-06-24 22:03:41 +00:00
parent 10707f3b44
commit 9969bc3d19
1 changed files with 51 additions and 4 deletions
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55
utils/TableGen/NeonEmitter.cpp
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@ -368,6 +368,52 @@ static std::string BuiltinTypeString(const char mod, StringRef typestr,
return quad ? "V16c" : "V8c";
}
/// StructTag - generate the name of the struct tag for a type.
/// These names are mandated by ARM's ABI.
static std::string StructTag(StringRef typestr) {
bool quad = false;
bool poly = false;
bool usgn = false;
// base type to get the type string for.
char type = ClassifyType(typestr, quad, poly, usgn);
SmallString<128> s;
s += "__simd";
s += quad ? "128_" : "64_";
if (usgn)
s.push_back('u');
switch (type) {
case 'c':
s += poly ? "poly8" : "int8";
break;
case 's':
s += poly ? "poly16" : "int16";
break;
case 'i':
s += "int32";
break;
case 'l':
s += "int64";
break;
case 'h':
s += "float16";
break;
case 'f':
s += "float32";
break;
default:
throw "unhandled type!";
break;
}
// Append _t, finishing the struct tag name.
s += "_t";
return s.str();
}
/// MangleName - Append a type or width suffix to a base neon function name,
/// and insert a 'q' in the appropriate location if the operation works on
/// 128b rather than 64b. E.g. turn "vst2_lane" into "vst2q_lane_f32", etc.
@ -878,10 +924,11 @@ void NeonEmitter::run(raw_ostream &OS) {
// Emit struct typedefs.
for (unsigned vi = 1; vi != 5; ++vi) {
for (unsigned i = 0, e = TDTypeVec.size(); i != e; ++i) {
std::string ts = TypeString('d', TDTypeVec[i]);
std::string vs = (vi > 1) ? TypeString('0' + vi, TDTypeVec[i]) : ts;
OS << "typedef struct __" << vs << " {\n";
OS << " __neon_" << ts << " val";
std::string ts = TypeString('d', TDTypeVec[i], vi == 1);
std::string vs = TypeString((vi > 1) ? '0' + vi : 'd', TDTypeVec[i]);
std::string tag = (vi > 1) ? vs : StructTag(TDTypeVec[i]);
OS << "typedef struct " << tag << " {\n";
OS << " " << ts << " val";
if (vi > 1)
OS << "[" << utostr(vi) << "]";
OS << ";\n} " << vs << ";\n\n";