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Also compute TopoSigs in synthetic register classes.

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CodeGenRegisterClass has two constructors. Both need to compute the
TopoSigs BitVector.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157271 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2012-05-22 18:20:28 +00:00
parent 49317e2df3
commit a9fdbbc55f
2 changed files with 8 additions and 3 deletions
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9
utils/TableGen/CodeGenRegisters.cpp
View File

@ -764,15 +764,20 @@ CodeGenRegisterClass::CodeGenRegisterClass(CodeGenRegBank &RegBank, Record *R)
// Create an inferred register class that was missing from the .td files.
// Most properties will be inherited from the closest super-class after the
// class structure has been computed.
CodeGenRegisterClass::CodeGenRegisterClass(StringRef Name, Key Props)
CodeGenRegisterClass::CodeGenRegisterClass(CodeGenRegBank &RegBank,
StringRef Name, Key Props)
: Members(*Props.Members),
TheDef(0),
Name(Name),
TopoSigs(RegBank.getNumTopoSigs()),
EnumValue(-1),
SpillSize(Props.SpillSize),
SpillAlignment(Props.SpillAlignment),
CopyCost(0),
Allocatable(true) {
for (CodeGenRegister::Set::iterator I = Members.begin(), E = Members.end();
I != E; ++I)
TopoSigs.set((*I)->getTopoSig());
}
// Compute inherited propertied for a synthesized register class.
@ -1080,7 +1085,7 @@ CodeGenRegBank::getOrCreateSubClass(const CodeGenRegisterClass *RC,
return FoundI->second;
// Sub-class doesn't exist, create a new one.
CodeGenRegisterClass *NewRC = new CodeGenRegisterClass(Name, K);
CodeGenRegisterClass *NewRC = new CodeGenRegisterClass(*this, Name, K);
addToMaps(NewRC);
return NewRC;
}

2
utils/TableGen/CodeGenRegisters.h
View File

@ -368,7 +368,7 @@ namespace llvm {
};
// Create a non-user defined register class.
CodeGenRegisterClass(StringRef Name, Key Props);
CodeGenRegisterClass(CodeGenRegBank&, StringRef Name, Key Props);
// Called by CodeGenRegBank::CodeGenRegBank().
static void computeSubClasses(CodeGenRegBank&);