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Clarify the meaning of '-2' register number
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43998 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -53,7 +53,8 @@ class Register<string n> {
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// These values can be determined by locating the <target>.h file in the
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// directory llvmgcc/gcc/config/<target>/ and looking for REGISTER_NAMES. The
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// order of these names correspond to the enumeration used by gcc. A value of
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// -1 indicates that the gcc number is undefined.
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// -1 indicates that the gcc number is undefined and -2 that register number
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// is invalid for this mode/flavour.
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list<int> DwarfNumbers = [];
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}
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@ -138,7 +139,8 @@ class DwarfRegNum<list<int> Numbers> {
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// These values can be determined by locating the <target>.h file in the
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// directory llvmgcc/gcc/config/<target>/ and looking for REGISTER_NAMES. The
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// order of these names correspond to the enumeration used by gcc. A value of
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// -1 indicates that the gcc number is undefined.
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// -1 indicates that the gcc number is undefined and -2 that register number is
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// invalid for this mode/flavour.
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list<int> DwarfNumbers = Numbers;
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}
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