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Move register class name strings to a single array in MCRegisterInfo to reduce static table size and number of relocation entries.

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Indices into the table are stored in each MCRegisterClass instead of a pointer. A new method, getRegClassName, is added to MCRegisterInfo and TargetRegisterInfo to lookup the string in the table.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222118 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper
2014-11-17 05:50:14 +00:00
parent daa09d03ab
commit a5babc8a31
17 changed files with 63 additions and 44 deletions
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9
include/llvm/Target/TargetRegisterInfo.h
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@@ -52,10 +52,6 @@ public:
///
unsigned getID() const { return MC->getID(); }
/// getName() - Return the register class name for debugging.
///
const char *getName() const { return MC->getName(); }
/// begin/end - Return all of the registers in this class.
///
iterator begin() const { return MC->begin(); }
@@ -561,6 +557,11 @@ public:
return RegClassBegin[i];
}
/// getRegClassName - Returns the name of the register class.
const char *getRegClassName(const TargetRegisterClass *Class) const {
return MCRegisterInfo::getRegClassName(Class->MC);
}
/// getCommonSubClass - find the largest common subclass of A and B. Return
/// NULL if there is no common subclass.
const TargetRegisterClass *