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[X86] Avoid std::string creation in RecognizableInstr constructor. NFCI.

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The value names in byteFromRec calls are compile time constants - just create StringRef directly instead of via std::string.
This commit is contained in:
Simon Pilgrim 2020-12-18 16:00:27 +00:00
parent b0acef6ebb
commit 992f58385f
1 changed files with 1 additions and 1 deletions
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utils/TableGen/X86RecognizableInstr.cpp
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@ -54,7 +54,7 @@ static uint8_t byteFromBitsInit(BitsInit &init) {
/// @param rec - The record from which to extract the value. /// @param rec - The record from which to extract the value.
/// @param name - The name of the field in the record. /// @param name - The name of the field in the record.
/// @return - The field, as translated by byteFromBitsInit(). /// @return - The field, as translated by byteFromBitsInit().
static uint8_t byteFromRec(const Record* rec, const std::string &name) { static uint8_t byteFromRec(const Record* rec, StringRef name) {
BitsInit* bits = rec->getValueAsBitsInit(name); BitsInit* bits = rec->getValueAsBitsInit(name);
return byteFromBitsInit(*bits); return byteFromBitsInit(*bits);
} }