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add scaffolding to emit argument attributes. No functionality

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change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62067 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-01-12 01:27:55 +00:00
parent 048ffb239c
commit 10dae94be2
1 changed files with 31 additions and 2 deletions
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33
utils/TableGen/IntrinsicEmitter.cpp
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@ -397,7 +397,10 @@ EmitAttributes(const std::vector<CodeGenIntrinsic> &Ints, std::ostream &OS) {
OS << " Attributes Attr = Attribute::NoUnwind;\n";
OS << " switch (id) {\n";
OS << " default: break;\n";
unsigned MaxArgAttrs = 0;
for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
MaxArgAttrs =
std::max(MaxArgAttrs, unsigned(Ints[i].ArgumentAttributes.size()));
switch (Ints[i].ModRef) {
default: break;
case CodeGenIntrinsic::NoMem:
@ -419,8 +422,34 @@ EmitAttributes(const std::vector<CodeGenIntrinsic> &Ints, std::ostream &OS) {
OS << " Attr |= Attribute::ReadOnly; // These do not write memory.\n";
OS << " break;\n";
OS << " }\n";
OS << " AttributeWithIndex PAWI = AttributeWithIndex::get(~0, Attr);\n";
OS << " return AttrListPtr::get(&PAWI, 1);\n";
OS << " AttributeWithIndex AWI[" << MaxArgAttrs+1 << "];\n";
OS << " AWI[0] = AttributeWithIndex::get(~0, Attr);\n";
OS << " unsigned NumAttrs = 1;\n";
OS << " switch (id) {\n";
OS << " default: break;\n";
// Add argument attributes for any intrinsics that have them.
for (unsigned i = 0, e = Ints.size(); i != e; ++i) {
if (Ints[i].ArgumentAttributes.empty()) continue;
OS << " case Intrinsic::" << Ints[i].EnumName << ":\n";
std::vector<std::pair<unsigned, CodeGenIntrinsic::ArgAttribute> > ArgAttrs =
Ints[i].ArgumentAttributes;
// Sort by argument index.
std::sort(ArgAttrs.begin(), ArgAttrs.end());
unsigned NumArgsWithAttrs = 0;
// FIXME: EMIT ATTRS
OS << " NumAttrs = " << NumArgsWithAttrs+1 << ";\n";
OS << " break;\n";
}
OS << " }\n";
OS << " return AttrListPtr::get(AWI, NumAttrs);\n";
OS << "}\n";
OS << "#endif\n\n";
}