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Emit full function prototypes. Definitions & typedefs to come. 

llvm-svn: 105315
This commit is contained in:
Nate Begeman 2010-06-02 06:17:19 +00:00
parent 876cec2898
commit d86d60f91d
1 changed files with 79 additions and 23 deletions
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102
llvm/utils/TableGen/NeonEmitter.cpp
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@ -64,9 +64,32 @@ static const char Widen(const char t) {
return '\0';
}
static std::string TypeString(const char mod, StringRef typestr) {
static char ClassifyType(StringRef ty, bool &quad, bool &poly, bool &usgn) {
unsigned off = 0;
// remember quad.
if (ty[off] == 'Q') {
quad = true;
++off;
}
// remember poly.
if (ty[off] == 'P') {
poly = true;
++off;
}
// remember unsigned.
if (ty[off] == 'U') {
usgn = true;
++off;
}
// base type to get the type string for.
return ty[off];
}
static std::string TypeString(const char mod, StringRef typestr) {
bool quad = false;
bool poly = false;
bool usgn = false;
@ -74,26 +97,8 @@ static std::string TypeString(const char mod, StringRef typestr) {
bool cnst = false;
bool pntr = false;
// remember quad.
if (typestr[off] == 'Q') {
quad = true;
++off;
}
// remember poly.
if (typestr[off] == 'P') {
poly = true;
++off;
}
// remember unsigned.
if (typestr[off] == 'U') {
usgn = true;
++off;
}
// base type to get the type string for.
char type = typestr[off];
char type = ClassifyType(typestr, quad, poly, usgn);
// Based on the modifying character, change the type and width if necessary.
switch (mod) {
@ -220,12 +225,63 @@ static std::string TypeString(const char mod, StringRef typestr) {
// Turn "vst2_lane" into "vst2q_lane_f32", etc.
static std::string MangleName(const std::string &name, StringRef typestr) {
return "";
bool quad = false;
bool poly = false;
bool usgn = false;
char type = ClassifyType(typestr, quad, poly, usgn);
std::string s = name;
switch (type) {
case 'c':
s += poly ? "_p8" : usgn ? "_u8" : "_s8";
break;
case 's':
s += poly ? "_p16" : usgn ? "_u16" : "_s16";
break;
case 'i':
s += usgn ? "_u32" : "_s32";
break;
case 'l':
s += usgn ? "_u64" : "_s64";
break;
case 'h':
s += "_f16";
break;
case 'f':
s += "_f32";
break;
default:
throw "unhandled type!";
break;
}
//
// Insert a 'q' before the first '_' character so that it ends up before
// _lane or _n on vector-scalar operations.
if (quad) {
size_t pos = s.find('_');
s = s.insert(pos, "q");
}
return s;
}
// Generate the string "(argtype a, argtype b, ...)"
static std::string GenArgs(const std::string &proto, StringRef typestr) {
return "";
char arg = 'a';
std::string s;
s += "(";
for (unsigned i = 1, e = proto.size(); i != e; ++i, ++arg) {
s += TypeString(proto[i], typestr);
s.push_back(' ');
s.push_back(arg);
if ((i + 1) < e)
s += ", ";
}
s += ")";
return s;
}
void NeonEmitter::run(raw_ostream &OS) {