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authorJakob Stoklund Olesen <stoklund@2pi.dk>2012-01-03 23:04:28 +0000
committerJakob Stoklund Olesen <stoklund@2pi.dk>2012-01-03 23:04:28 +0000
commitac1ed44d95789400edc334fab6680b7bcf7d61a9 (patch)
tree61f4ef8e8d4b28f60369a3b9abc36f1a5447ad68 /utils
parent6d5b7cc235e284130350045a320426afceb82874 (diff)
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external_llvm-ac1ed44d95789400edc334fab6680b7bcf7d61a9.tar.gz
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Don't use enums larger than 1 << 31 for target features.
Patch by Andy Zhang! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147491 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'utils')
-rw-r--r--utils/TableGen/SubtargetEmitter.cpp45
1 files changed, 29 insertions, 16 deletions
diff --git a/utils/TableGen/SubtargetEmitter.cpp b/utils/TableGen/SubtargetEmitter.cpp
index 34cd9a9..986c50f 100644
--- a/utils/TableGen/SubtargetEmitter.cpp
+++ b/utils/TableGen/SubtargetEmitter.cpp
@@ -39,28 +39,41 @@ 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];
+
+ // Get and emit name and expression (1 << i)
+ OS << " const uint64_t " << Def->getName() << " = 1ULL << " << i << ";\n";
+ }
+ } else {
+ // Open enumeration
+ OS << "enum {\n";
- // For each record
- for (unsigned i = 0; i < N;) {
- // 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
- OS << " " << Def->getName();
+ // Get and emit name
+ OS << " " << Def->getName();
- // If bit flags then emit expression (1 << i)
- if (isBits) OS << " = " << " 1ULL << " << i;
+ // If bit flags then emit expression (1 << i)
+ if (isBits) OS << " = " << " 1ULL << " << i;
- // Depending on 'if more in the list' emit comma
- if (++i < N) OS << ",";
+ // Depending on 'if more in the list' emit comma
+ if (++i < N) OS << ",";
- OS << "\n";
- }
+ OS << "\n";
+ }
- // Close enumeration
- OS << "};\n";
+ // Close enumeration
+ OS << "};\n";
+ }
OS << "}\n";
}