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author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-09-30 22:18:45 +0000 |
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committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-09-30 22:18:45 +0000 |
commit | f9a4bb78dadc12c7c1e604c6f17b63a71305c2ca (patch) | |
tree | 5289fcfc5dbaf901973b52d4e320ffb6f807bac9 /utils/TableGen/CodeGenRegisters.cpp | |
parent | f391e9f696183a8dfb6b0d1e791687a520552f85 (diff) | |
download | llvm-f9a4bb78dadc12c7c1e604c6f17b63a71305c2ca.tar.gz llvm-f9a4bb78dadc12c7c1e604c6f17b63a71305c2ca.tar.bz2 llvm-f9a4bb78dadc12c7c1e604c6f17b63a71305c2ca.tar.xz |
Compute lists of super-classes in CodeGenRegisterClass.
Use these lists instead of computing them on the fly in
RegisterInfoEmitter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140895 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'utils/TableGen/CodeGenRegisters.cpp')
-rw-r--r-- | utils/TableGen/CodeGenRegisters.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/utils/TableGen/CodeGenRegisters.cpp b/utils/TableGen/CodeGenRegisters.cpp index c712495012..35f247a2e3 100644 --- a/utils/TableGen/CodeGenRegisters.cpp +++ b/utils/TableGen/CodeGenRegisters.cpp @@ -414,6 +414,16 @@ computeSubClasses(ArrayRef<CodeGenRegisterClass*> RegClasses) { for (unsigned s = rci - 1; s && RC.hasSubClass(RegClasses[s - 1]); --s) RC.SubClasses.set(s - 1); } + + // Compute the SuperClasses lists from the SubClasses vectors. + for (unsigned rci = 0; rci != RegClasses.size(); ++rci) { + const BitVector &SC = RegClasses[rci]->getSubClasses(); + for (int s = SC.find_first(); s >= 0; s = SC.find_next(s)) { + if (unsigned(s) == rci) + continue; + RegClasses[s]->SuperClasses.push_back(RegClasses[rci]); + } + } } //===----------------------------------------------------------------------===// |