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Work around code generation bug in Visual Studio 2010.

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See http://llvm.org/pr9976 for details.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131954 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2011-05-24 03:20:56 +00:00
parent c827939046
commit dfa178bc2a
1 changed files with 2 additions and 2 deletions
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4
include/llvm/Target/TargetRegisterInfo.h
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@@ -351,13 +351,13 @@ public:
/// The first virtual register in a function will get the index 0. /// The first virtual register in a function will get the index 0.
static unsigned virtReg2Index(unsigned Reg) { static unsigned virtReg2Index(unsigned Reg) {
assert(isVirtualRegister(Reg) && "Not a virtual register"); assert(isVirtualRegister(Reg) && "Not a virtual register");
return Reg - (1u << 31); return Reg & ~(1u << 31);
} }
/// index2VirtReg - Convert a 0-based index to a virtual register number. /// index2VirtReg - Convert a 0-based index to a virtual register number.
/// This is the inverse operation of VirtReg2IndexFunctor below. /// This is the inverse operation of VirtReg2IndexFunctor below.
static unsigned index2VirtReg(unsigned Index) { static unsigned index2VirtReg(unsigned Index) {
return Index + (1u << 31); return Index | (1u << 31);
} }
/// getMinimalPhysRegClass - Returns the Register Class of a physical /// getMinimalPhysRegClass - Returns the Register Class of a physical