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[AArch64] Slight naming changes and comments for AArch64NamedImmMapper 

Reviewers: echristo

Subscribers: llvm-commits

Follow-up to: http://reviews.llvm.org/D8496#158595

Relates to: http://reviews.llvm.org/rL235089

llvm-svn: 237354
This commit is contained in:
Vladimir Sukharev 2015-05-14 09:50:14 +00:00
parent d5b3e376d2
commit 8ccf0a3aa7
1 changed files with 7 additions and 4 deletions
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11
llvm/lib/Target/AArch64/Utils/AArch64BaseInfo.h
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@ -280,15 +280,16 @@ struct AArch64NamedImmMapper {
struct Mapping {
const char *Name;
uint32_t Value;
uint64_t AvailableForFeatures;
// empty AvailableForFeatures means "always-on"
uint64_t FeatureBitSet; // Set of features this mapping is available for
// Zero value of FeatureBitSet means the mapping is always available
bool isNameEqual(std::string Other, uint64_t FeatureBits=~0ULL) const {
if (AvailableForFeatures && !(AvailableForFeatures & FeatureBits))
if (FeatureBitSet && !(FeatureBitSet & FeatureBits))
return false;
return Name == Other;
}
bool isValueEqual(uint32_t Other, uint64_t FeatureBits=~0ULL) const {
if (AvailableForFeatures && !(AvailableForFeatures & FeatureBits))
if (FeatureBitSet && !(FeatureBitSet & FeatureBits))
return false;
return Value == Other;
}
@ -298,7 +299,9 @@ struct AArch64NamedImmMapper {
AArch64NamedImmMapper(const Mapping (&Mappings)[N], uint32_t TooBigImm)
: Mappings(&Mappings[0]), NumMappings(N), TooBigImm(TooBigImm) {}
// Maps value to string, depending on availability for FeatureBits given
StringRef toString(uint32_t Value, uint64_t FeatureBits, bool &Valid) const;
// Maps string to value, depending on availability for FeatureBits given
uint32_t fromString(StringRef Name, uint64_t FeatureBits, bool &Valid) const;
/// Many of the instructions allow an alternative assembly form consisting of