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Progress on generating BuiltinsARM.def, still some duplicates to work out.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105461 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nate Begeman 2010-06-04 07:11:25 +00:00
parent 73cef3e9b1
commit 92f98af9fb
1 changed files with 110 additions and 3 deletions
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113
utils/TableGen/NeonEmitter.cpp
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@ -234,6 +234,106 @@ static std::string TypeString(const char mod, StringRef typestr) {
return s.str();
}
static std::string BuiltinTypeString(const char mod, StringRef typestr) {
bool quad = false;
bool poly = false;
bool usgn = false;
bool scal = false;
bool cnst = false;
bool pntr = false;
if (mod == 'v')
return "v";
if (mod == 'i')
return "i";
// base type to get the type string for.
char type = ClassifyType(typestr, quad, poly, usgn);
// Based on the modifying character, change the type and width if necessary.
switch (mod) {
case 't':
if (poly) {
poly = false;
usgn = true;
}
break;
case 'x':
usgn = true;
poly = false;
if (type == 'f')
type = 'i';
break;
case 'f':
type = 'f';
usgn = false;
break;
case 'w':
type = Widen(type);
quad = true;
break;
case 'n':
type = Widen(type);
break;
case 'l':
type = 'l';
scal = true;
usgn = true;
break;
case 's':
scal = true;
break;
case 'k':
quad = true;
break;
case 'c':
cnst = true;
case 'p':
type = 'v';
usgn = false;
poly = false;
pntr = true;
scal = true;
break;
case 'h':
type = Narrow(type);
break;
case 'e':
type = Narrow(type);
usgn = true;
break;
default:
break;
}
if (type == 'h') {
type = 's';
usgn = true;
}
usgn = usgn | poly;
if (scal) {
SmallString<128> s;
if (usgn)
s.push_back('U');
s.push_back(type);
if (cnst)
s.push_back('C');
if (pntr)
s.push_back('*');
return s.str();
}
if (mod == '2')
return quad ? "V16cV16c" : "V8cV8c";
if (mod == '3')
return quad ? "V16cV16cV16c" : "V8cV8cV8c";
if (mod == '4')
return quad ? "V16cV16cV16cV16c" : "V8cV8cV8cV8c";
return quad ? "V16c" : "V8c";
}
// Turn "vst2_lane" into "vst2q_lane_f32", etc.
static std::string MangleName(const std::string &name, StringRef typestr,
ClassKind ck) {
@ -298,7 +398,7 @@ static std::string MangleName(const std::string &name, StringRef typestr,
break;
}
if (ck == ClassB)
return s += "_v";
s += "_v";
// Insert a 'q' before the first '_' character so that it ends up before
// _lane or _n on vector-scalar operations.
@ -454,11 +554,18 @@ static std::string GenBuiltinDef(const std::string &name,
const std::string &proto,
StringRef typestr, ClassKind ck) {
std::string s("BUILTIN(__builtin_neon_");
// 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;
s += MangleName(name, typestr, ck);
s += ", \"";
for (unsigned i = 0, e = proto.size(); i != e; ++i) {
}
for (unsigned i = 0, e = proto.size(); i != e; ++i)
s += BuiltinTypeString(proto[i], typestr);
s += "\", \"n\")";
return s;