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Don't use enums larger than 1 << 31 for target features.

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Patch by Andy Zhang!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147491 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2012-01-03 23:04:28 +00:00
parent 6d5b7cc235
commit ac1ed44d95
1 changed files with 29 additions and 16 deletions
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45
utils/TableGen/SubtargetEmitter.cpp
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@ -39,29 +39,42 @@ void SubtargetEmitter::Enumeration(raw_ostream &OS,
OS << "namespace " << Target << " {\n";
// Open enumeration
OS << "enum {\n";
// For bit flag enumerations with more than 32 items, emit constants.
// Emit an enum for everything else.
if (isBits && N > 32) {
// For each record
for (unsigned i = 0; i < N; i++) {
// Next record
Record *Def = DefList[i];
// For each record
for (unsigned i = 0; i < N;) {
// Next record
Record *Def = DefList[i];
// Get and emit name and expression (1 << i)
OS << " const uint64_t " << Def->getName() << " = 1ULL << " << i << ";\n";
}
} else {
// Open enumeration
OS << "enum {\n";
// Get and emit name
OS << " " << Def->getName();
// For each record
for (unsigned i = 0; i < N;) {
// Next record
Record *Def = DefList[i];
// If bit flags then emit expression (1 << i)
if (isBits) OS << " = " << " 1ULL << " << i;
// Get and emit name
OS << " " << Def->getName();
// Depending on 'if more in the list' emit comma
if (++i < N) OS << ",";
// If bit flags then emit expression (1 << i)
if (isBits) OS << " = " << " 1ULL << " << i;
OS << "\n";
// Depending on 'if more in the list' emit comma
if (++i < N) OS << ",";
OS << "\n";
}
// Close enumeration
OS << "};\n";
}
// Close enumeration
OS << "};\n";
OS << "}\n";
}