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Clarify the meaning of '-2' register number

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43998 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Anton Korobeynikov 2007-11-11 19:53:50 +00:00
parent f191c80cd7
commit 2e7eedf382
1 changed files with 4 additions and 2 deletions
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6
lib/Target/Target.td
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@ -53,7 +53,8 @@ class Register<string n> {
// These values can be determined by locating the <target>.h file in the
// directory llvmgcc/gcc/config/<target>/ and looking for REGISTER_NAMES. The
// order of these names correspond to the enumeration used by gcc. A value of
// -1 indicates that the gcc number is undefined.
// -1 indicates that the gcc number is undefined and -2 that register number
// is invalid for this mode/flavour.
list<int> DwarfNumbers = [];
}
@ -138,7 +139,8 @@ class DwarfRegNum<list<int> Numbers> {
// These values can be determined by locating the <target>.h file in the
// directory llvmgcc/gcc/config/<target>/ and looking for REGISTER_NAMES. The
// order of these names correspond to the enumeration used by gcc. A value of
// -1 indicates that the gcc number is undefined.
// -1 indicates that the gcc number is undefined and -2 that register number is
// invalid for this mode/flavour.
list<int> DwarfNumbers = Numbers;
}